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Journal articles on the topic 'Collider searches'

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Author: Grafiati

Published: 10 December 2022

Last updated: 29 January 2023

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1

Boveia, Antonio, and Caterina Doglioni. "Dark Matter Searches at Colliders." Annual Review of Nuclear and Particle Science 68, no. 1 (October 19, 2018): 429–59. http://dx.doi.org/10.1146/annurev-nucl-101917-021008.

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Colliders, among the most successful tools of particle physics, have revealed much about matter. This review describes how colliders contribute to the search for particle dark matter, focusing on the highest-energy collider currently in operation, the Large Hadron Collider (LHC) at CERN. In the absence of hints about the character of interactions between dark matter and standard matter, this review emphasizes what could be observed in the near future, presents the main experimental challenges, and discusses how collider searches fit into the broader field of dark matter searches. Finally, it highlights a few areas to watch for the future LHC program.

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Giffin, Pierce, Ian M. Lewis, and Ya-Juan Zheng. "Higgs production in association with a dark-Z at future electron positron colliders." Journal of Physics G: Nuclear and Particle Physics 49, no. 1 (December 9, 2021): 015003. http://dx.doi.org/10.1088/1361-6471/ac38c1.

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Abstract In recent years there have been many proposals for new electron–positron colliders, such as the circular electron–positron collider, the international linear collider, and the future circular collider in electron–positron mode. Much of the motivation for these colliders is precision measurements of the Higgs boson and searches for new electroweak states. Hence, many of these studies are focused on energies above the hZ threshold. However, there are proposals to run these colliders at the lower W W threshold and Z-pole energies. In this paper, we study a new search for Higgs physics accessible at lower energies: e + e − → hZ d, where Z d is a new light gauge boson such as a dark photon or dark-Z. Such searches can be conducted at the W W threshold, i.e. energies below the hZ threshold where exotic Higgs decays can be searched for in earnest. Additionally, due to very good angular and energy resolution at future electron–positron colliders, these searches will be sensitive to Z d masses below 1 GeV, which is lower than the current direct LHC searches. We will show that at s = 160 GeV with 10 ab−1, a search for e + e − → hZ d is sensitive to h − Z − Z d couplings of δ ∼ 9 × 10−3 and cross sections of ∼ 2 − 3 ab for Z d masses below 1 GeV. The results are similar at s = 240 GeV with 5 ab−1. These limits are better than those expected from limits on the HL-LHC limits on Higgs branching ratio into generic non-standard model final states and comparable to meson decay limits.

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HARRIS, ROBERT M., and KONSTANTINOS KOUSOURIS. "SEARCHES FOR DIJET RESONANCES AT HADRON COLLIDERS." International Journal of Modern Physics A 26, no. 30n31 (December 20, 2011): 5005–55. http://dx.doi.org/10.1142/s0217751x11054905.

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We review the experimental searches for new particles in the dijet mass spectrum conducted at the CERN [Formula: see text], the Fermilab Tevatron Collider, and the CERN Large Hadron Collider. The theory of the QCD background and new particle signals is reviewed, with emphasis on the choices made by the experiments to model the background and signal. The experimental techniques, data, and results of dijet resonance searches at hadron colliders over the last quarter century are described and compared. Model independent and model specific limits on new particles decaying to dijets are reviewed, and a detailed comparison is made of the recently published limits from the ATLAS and CMS experiments.

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4

Behr, J. Katharina, and Alexander Grohsjean. "Dark Matter Searches with Top Quarks." Universe 9, no. 1 (December 27, 2022): 16. http://dx.doi.org/10.3390/universe9010016.

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Collider signatures with top quarks provide sensitive probes of dark matter (DM) production at the Large Hadron Collider (LHC). In this article, we review the results of DM searches in final states with top quarks conducted by the ATLAS and CMS Collaborations at the LHC, including the most recent results on the full LHC Run 2 dataset. We highlight the complementarity of DM searches in final states with top quarks with searches in other final states in the framework of various simplified models of DM. A reinterpretation of a DM search with top quarks in the context of an effective field theory description of scalar dark energy is also discussed. Finally, we give an outlook on the potential of DM searches with top quarks in LHC Run 3, at the high-luminosity LHC, and possible future colliders. In this context, we highlight new benchmark models that could be probed by existing and future searches as well as those that predict still-uncovered signatures of anomalous top-quark production and decays at the LHC.

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BÜSCHER, VOLKER, and KARL JAKOBS. "HIGGS BOSON SEARCHES AT HADRON COLLIDERS." International Journal of Modern Physics A 20, no. 12 (May 10, 2005): 2523–602. http://dx.doi.org/10.1142/s0217751x05022457.

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The investigation of the dynamics responsible for electroweak symmetry breaking is one of the prime tasks of experiments at present and future colliders. Experiments at the Tevatron [Formula: see text] Collider and at the CERN Large Hadron Collider (LHC) must be able to discover a Standard Model Higgs boson over the full mass range as well as Higgs bosons in extended models. In this review, the discovery potential for the Standard Model Higgs boson and for Higgs bosons in the Minimal Supersymmetric extension is summarized. Emphasis is put on those studies which have been performed recently within the experimental collaborations using a realistic simulation of the detector performance. This includes a discussion of the search for Higgs bosons using the vector boson fusion mode at the LHC, a discussion of the measurement of Higgs boson parameters as well as a detailed review of the MSSM sector for different benchmark scenarios. The Tevatron part of the review also contains a discussion of first physics results from data taken in the ongoing Run II.

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MITSOU, VASILIKI A. "SHEDDING LIGHT ON DARK MATTER AT COLLIDERS." International Journal of Modern Physics A 28, no. 31 (December 19, 2013): 1330052. http://dx.doi.org/10.1142/s0217751x13300524.

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Dark matter remains one of the most puzzling mysteries in Fundamental Physics of our times. Experiments at high-energy physics colliders are expected to shed light to its nature and determine its properties. This review focuses on recent searches for dark matter signatures at the Large Hadron Collider, also discussing related prospects in future e+e- colliders.

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7

GIUDICE, G. F. "THEORETICAL PREDICTIONS FOR COLLIDER SEARCHES." International Journal of Modern Physics A 19, no. 06 (March 10, 2004): 835–47. http://dx.doi.org/10.1142/s0217751x04018816.

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8

Yuan, Jia-Rong, Hua-Jie Cheng, and Xu-Ai Zhuang. "Prospects for chargino pair production at the CEPC *." Chinese Physics C 46, no. 1 (January 1, 2022): 013104. http://dx.doi.org/10.1088/1674-1137/ac2f93.

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Abstract The proposed Circular Electron Positron Collider (CEPC) with a center-of-mass energy GeV will primarily serve as a Higgs factory. Additionally, it will offer good opportunities to search for new physics phenomena at low energies, which can be challenging with hadron colliders; however, these discoveries are highly motivated by theoretical models developed to explain, e.g., the relic abundance of dark matter. This paper presents sensitivity studies for chargino pair production by considering scenarios for both a Bino-like and a Higgsino-like neutralino as the lightest supersymmetric particle and using a full Monte Carlo (MC) simulation. By assuming systematic uncertainties at the level of 5%, the CEPC has the ability to discover chargino pair production up to the kinematic limit of for both scenarios. The results have a minor dependence on the reconstruction model and detector geometry. These results can also be considered as a reference and benchmark for similar searches at other proposed electron-positron colliders, such as the Future Circular Collider ee (FCC-ee) or the International Linear Collider (ILC), given the similar nature of the facilities, detectors, center-of-mass energies, and target luminosities.

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9

Chala, Mikael, Ramona Gröber, and Michael Spannowsky. "Interplay between collider searches for vector-like quarks and dark matter searches in composite Higgs models." International Journal of Modern Physics A 34, no. 13n14 (May 20, 2019): 1940011. http://dx.doi.org/10.1142/s0217751x19400116.

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We review the interplay between collider searches for vector-like quarks and dark matter direct detection experiments in composite Higgs models. With focus on a future 100 TeV collider, we also extend previous analyses to improve the reach for heavy quarks in the low mass region.

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Mitsou, Vasiliki A. "Searches for Magnetic Monopoles: A Review." Proceedings 13, no. 1 (August 12, 2019): 10. http://dx.doi.org/10.3390/proceedings2019013010.

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This report briefly reviews selected searches for magnetic monopoles. The theoretical motivation behind their existence is highlighted. The focus is on the results of the searches and the bounds set in cosmic and collider detectors, especially in the current experiments operating at the Large Hadron Collider: ATLAS and MoEDAL.

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Cavanaugh, Richard. "CMS Preparations for New Physics Searches Involving Lepton Final States." International Journal of Modern Physics A 20, no. 15 (June 20, 2005): 3406–8. http://dx.doi.org/10.1142/s0217751x05026662.

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In 2007, the Large Hadron Collider (LHC) will circulate and collide proton-proton beams at an expected center-of-mass energy of 14 TeV. The Compact Muon Solenoid (CMS) is one of four experiments at the LHC and has been designed with particular attention to selecting and reconstructing muons with high redundancy. This paper briefly describes the CMS Muon System and provides an overview of CMS preparations for new physics searches involving lepton final states during the early phases of running at the LHC.

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12

Dorigo, Tommaso. "Hadron collider searches for diboson resonances." Progress in Particle and Nuclear Physics 100 (May 2018): 211–61. http://dx.doi.org/10.1016/j.ppnp.2018.01.009.

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13

Antusch, Stefan, Eros Cazzato, and Oliver Fischer. "Sterile neutrino searches at future e−e+, pp and e−p colliders." International Journal of Modern Physics A 32, no. 14 (May 19, 2017): 1750078. http://dx.doi.org/10.1142/s0217751x17500786.

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Sterile neutrinos are among the most attractive extensions of the SM to generate the light neutrino masses observed in neutrino oscillation experiments. When the sterile neutrinos are subject to a protective symmetry, they can have masses around the electroweak scale and potentially large neutrino Yukawa couplings, which makes them testable at planned future particle colliders. We systematically discuss the production and decay channels at electron–positron, proton–proton and electron–proton colliders and provide a complete list of the leading order signatures for sterile neutrino searches. Among other things, we discuss several novel search channels, and present a first look at the possible sensitivities for the active-sterile mixings and the heavy neutrino masses. We compare the performance of the different collider types and discuss their complementarity.

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14

ADAMS, TODD. "SEARCHES FOR LONG-LIVED PARTICLES AT THE TEVATRON COLLIDER." Modern Physics Letters A 23, no. 06 (February 28, 2008): 371–85. http://dx.doi.org/10.1142/s0217732308026467.

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Several searches for long-lived particles have been performed using data from [Formula: see text] collisions from Run II at the Tevatron. In most cases, new analysis techniques have been developed to carry out each search and/or estimate the backgrounds. These searches expand the discovery potential of the CDF and D0 experiments to new physics that may have been missed by traditional search techniques. This review discusses searches for (1) neutral, long-lived particles decaying to muons, (2) massive, neutral, long-lived particles decaying to a photon and missing energy, (3) stopped gluinos, and (4) charged massive stable particles. It summarizes some of the theoretical and experimental motivations for such searches.

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Cakir, I. T., A. Senol, and A. T. Tasci. "Associated production of single top quark and W boson through anomalous couplings at LHeC based γp colliders." Modern Physics Letters A 29, no. 04 (February 10, 2014): 1450021. http://dx.doi.org/10.1142/s0217732314500217.

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We consider the production of a single top quark in association with a W boson at LHeC based γp collider. We compute the cross-section for the process γp→WtX with the anomalous Wtb and Wtbγ couplings. We find that the sensitivities to anomalous couplings of top quark are shown to be comparable, even better than the ones obtained from direct searches at hadron colliders.

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16

Argyropoulos, Spyros, Oleg Brandt, and Ulrich Haisch. "Collider Searches for Dark Matter through the Higgs Lens." Symmetry 13, no. 12 (December 13, 2021): 2406. http://dx.doi.org/10.3390/sym13122406.

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Despite the fact that dark matter constitutes one of the cornerstones of the standard cosmological paradigm, its existence has so far only been inferred from astronomical observations, and its microscopic nature remains elusive. Theoretical arguments suggest that dark matter might be connected to the symmetry-breaking mechanism of the electroweak interactions or of other symmetries extending the Standard Model of particle physics. The resulting Higgs bosons, including the 125 GeV spin-0 particle discovered recently at the Large Hadron Collider, therefore represent a unique tool to search for dark matter candidates at collider experiments. This article reviews some of the relevant theoretical models as well as the results from the searches for dark matter in signatures that involve a Higgs-like particle at the Large Hadron Collider.

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17

Gingrich, Douglas M. "Collider searches for nonperturbative low-scale gravity states." International Journal of Modern Physics A 30, no. 34 (December 9, 2015): 1530061. http://dx.doi.org/10.1142/s0217751x15300616.

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The possibility of producing nonperturbative low-scale gravity states in collider experiments was first discussed in about 1998. The ATLAS and CMS experiments have searched for nonperturbative low-scale gravity states using the Large Hadron Collider with a proton–proton center-of-mass energy of 8 TeV. These experiments have now seriously confronted the possibility of producing nonperturbative low-scale gravity states which were proposed over 17 years ago. I will summarize the results of the searches, give a personal view of what they mean, and make some predictions for 13 TeV center-of-mass energy. I will also discuss early ATLAS 13 TeV center-of-mass energy results.

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18

Mavromatos, Nick E., and Vasiliki A. Mitsou. "Magnetic monopoles revisited: Models and searches at colliders and in the Cosmos." International Journal of Modern Physics A 35, no. 23 (August 20, 2020): 2030012. http://dx.doi.org/10.1142/s0217751x20300124.

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In this review, we discuss recent developments in both the theory and the experimental searches of magnetic monopoles in past, current and future colliders and in the Cosmos. The theoretical models include, apart from the standard Grand Unified Theories, extensions of the Standard Model that admit magnetic monopole solutions with finite energy and masses that can be as light as a few TeV. Specifically, we discuss, among other scenarios, modified Cho–Maison monopoles and magnetic monopoles in (string-inspired, higher derivative) Born–Infeld extensions of the hypercharge sector of the Standard Model. We also outline the conditions for which effective field theories describing the interaction of monopoles with photons are valid and can be used for result interpretation in monopole production at colliders. The experimental part of the review focuses on, past and present, cosmic and collider searches, including the latest bounds on monopole masses and magnetic charges by the ATLAS and MoEDAL experiments at the LHC, as well as prospects for future searches.

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19

Lorenz, Jeanette Miriam. "Supersymmetry and the collider dark matter picture." Modern Physics Letters A 34, no. 30 (September 28, 2019): 1930005. http://dx.doi.org/10.1142/s0217732319300052.

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One of the key questions in particle physics and astrophysics is the nature of dark matter, the existence of which has been confirmed in many astrophysical and cosmological observations. Besides direct and indirect detection experiments, collider searches for dark matter offer the unique possibility to not only detect dark matter particles but in the case of discovery to also study their properties by making statements about the potential underlying theory. The search program for dark matter at the ATLAS and CMS experiments at the Large Hadron Collider is comprehensive, and includes both supersymmetric dark matter candidates and other alternatives. This review presents the latest status in these searches, with special focus on supersymmetric dark matter particles.

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20

Trevisani, Nicolò. "Collider Searches for Dark Matter (ATLAS + CMS)." Universe 4, no. 11 (November 20, 2018): 131. http://dx.doi.org/10.3390/universe4110131.

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Several searches for dark matter have been performed by the CMS and ATLAS collaborations, using proton-proton collisions with a center-of-mass energy of 13 TeV produced by the Large Hadron Collider. Different signatures may highlight the presence of dark matter: the imbalance in the transverse momentum in an event due to the presence of undetectable dark matter particles, produced together with one Standard Model particle, a bump in the di-jet or di-lepton invariant mass distributions, or an excess of events in the di-jet angular distribution, produced by a dark matter mediator. No significant discrepancies with respect to the Standard Model predictions have been found in data, so that limits on the dark matter couplings to ordinary matter, or limits on the dark matter particles and mediators masses have been set. The results are also re-interpreted as limits on the dark matter interaction cross-section with baryonic matter, so that a comparison with direct detection experiments is allowed.

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21

Doncheski, M. A., and R. W. Robinett. "Third-generation leptoquark decays and collider searches." Physics Letters B 411, no. 1-2 (October 1997): 107–11. http://dx.doi.org/10.1016/s0370-2693(97)01015-0.

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22

Gorbunov, D. S. "Light sgoldstino: precision measurements versus collider searches." Nuclear Physics B 602, no. 1-2 (May 2001): 213–37. http://dx.doi.org/10.1016/s0550-3213(01)00122-5.

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23

Burdin, S., M. Fairbairn, P. Mermod, D. Milstead, J. Pinfold, T. Sloan, and W. Taylor. "Non-collider searches for stable massive particles." Physics Reports 582 (June 2015): 1–52. http://dx.doi.org/10.1016/j.physrep.2015.03.004.

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Doebert, Steffen, and Eva Sicking. "Towards TeV-scale electron-positron collisions: the Compact Linear Collider (CLIC)." Europhysics News 49, no. 1 (January 2018): 24–28. http://dx.doi.org/10.1051/epn/2018102.

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The Compact Linear Collider (CLIC), a future electron-positron collider at the energy frontier, has the potential to change our understanding of the universe. Proposed to follow the Large Hardron Collider (LHC) programme at CERN, it is conceived for precision measurements as well as for searches for new phenomena.

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25

Mahmoudi, Farvah. "Interplay of flavor and collider physics." International Journal of Modern Physics A 29, no. 21 (August 20, 2014): 1444012. http://dx.doi.org/10.1142/s0217751x14440126.

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We present an overview on the interplay between direct searches for new physics at the LHC and indirect constraints from flavor physics, with an emphasis on the implications of the recent LHCb results. The complementarity with the Higgs search results will also be addressed. We show the correlations and complementarity between the different sectors in the context of a few specific scenarios in supersymmetry.

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26

Franceschini, Roberto. "Status of LHC Searches for SUSY without R-Parity." Advances in High Energy Physics 2015 (2015): 1–16. http://dx.doi.org/10.1155/2015/581038.

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In this contribution we briefly review the status of current searches for supersymmetry at the Large Hadron Collider, focusing especially on viable sub-TeV colored superpartners which can appear in nonstandard scenarios. The presented material covers mostly signals that do not crucially rely on the presence of large missing transverse momentum, with special emphasis on R-parity violating supersymmetry. For some scenarios the prospects for the next run of the Large Hadron Collider and future machines are also presented.

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Bourilkov, Dimitri. "Using Machine Learning for Precision Measurements." EPJ Web of Conferences 214 (2019): 06022. http://dx.doi.org/10.1051/epjconf/201921406022.

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The use of machine learning techniques for classification is well established. They are applied widely to improve the signal-to-noise ratio and the sensitivity of searches for new physics at colliders. In this study I explore the use of machine learning for optimizing the output of high precision experiments by selecting the most sensitive variables to the quantity being measured. The precise determination of the electroweak mixing angle at the Large Hadron Collider using linear or deep neural network regressors is developed as a test case.

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Mahmoudi, Farvah. "Dark matter, collider searches and the early Universe." Journal of Physics: Conference Series 1271 (July 2019): 012020. http://dx.doi.org/10.1088/1742-6596/1271/1/012020.

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Mambrini, Y., and E. Nezri. "Dark matter and collider searches in the MSSM." European Physical Journal C 50, no. 4 (March 20, 2007): 949–68. http://dx.doi.org/10.1140/epjc/s10052-007-0238-2.

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Carena, M., R. Culbertson, H. Frisch, S. Eno, and S. Mrenna. "Searches for supersymmetric particles at the Tevatron collider." Reviews of Modern Physics 71, no. 4 (July 1, 1999): 937–81. http://dx.doi.org/10.1103/revmodphys.71.937.

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Loomis, C. "Searches for new phenomena at the Tevatron collider." Nuclear Physics B - Proceedings Supplements 65, no. 1-3 (June 1998): 297–301. http://dx.doi.org/10.1016/s0920-5632(97)01017-7.

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Canepa, Anadi. "Searches for supersymmetry at the Large Hadron Collider." Reviews in Physics 4 (November 2019): 100033. http://dx.doi.org/10.1016/j.revip.2019.100033.

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Hajer, Jan, Ahmed Ismail, Felix Kling, Ying-Ying Li, Tao Liu, and Shufang Su. "Searches for non-SM heavy Higgses at a 100 TeV pp collider." International Journal of Modern Physics A 30, no. 23 (August 19, 2015): 1544005. http://dx.doi.org/10.1142/s0217751x15440054.

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In this write-up, we summarize the production of non-SM Higgses in the Type II Two Higgs Doublet Model at a 100 TeV [Formula: see text] collider, as well as their decays. We present the reach for [Formula: see text], [Formula: see text] as well as [Formula: see text], [Formula: see text] at the 100 TeV [Formula: see text] collider and outline the possible search channels via Higgs exotic decays. We point out that a combination of these conventional channels potentially yields full coverage for [Formula: see text] and pushes the exclusion limits from the [Formula: see text] at the LHC to the [Formula: see text] at a 100 TeV [Formula: see text] collider, whereas the exotic decays of a heavy Higgs into two light Higgses or one light Higgs plus one SM gauge boson provide alternative discovery channels.

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CUYPERS, FRANK. "SELECTRON SEARCHES IN e−e− SCATTERING." International Journal of Modern Physics A 11, no. 09 (April 10, 1996): 1585–90. http://dx.doi.org/10.1142/s0217751x96000778.

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We review the pair-production and decay of selectrons in e−e− collisions and show how the standard model backgrounds can be virtually eliminated with polarized beams. The exceedingly simple analysis involved and the large sample of background-free supersymmetric events make this linear collider operating mode ideal for discovering selectrons and measuring the mass of the lightest neutralino.

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Canepa, Anadi, Tao Han, and Xing Wang. "The Search for Electroweakinos." Annual Review of Nuclear and Particle Science 70, no. 1 (October 19, 2020): 425–54. http://dx.doi.org/10.1146/annurev-nucl-031020-121031.

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In this review, we consider a general theoretical framework for fermionic color-singlet states—including a singlet, a doublet, and a triplet under the Standard Model SU(2)L gauge symmetry, corresponding to the bino, higgsino, and wino in supersymmetric theories—generically dubbed electroweakinos for their mass eigenstates. Depending on the relations among these states’ three mass parameters and their mixing after the electroweak symmetry breaking, this sector leads to a rich phenomenology that may be accessible in current and near-future experiments. We discuss the decay patterns of electroweakinos and their observable signatures at colliders, review the existing bounds on the model parameters, and summarize the current statuses of the comprehensive searches by the ATLAS and CMS Collaborations at the Large Hadron Collider. We also comment on the prospects for future colliders. An important feature of the theory is that the lightest neutral electroweakino can be identified as a weakly interacting massive particle cold dark matter candidate. We take into account the existing bounds on the parameters from the dark matter direct detection experiments and discuss the complementarity of the electroweakino searches at colliders.

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TAYLOR, GEOFFREY N. "LOOKING FORWARD TO THE LARGE HADRON COLLIDER." International Journal of Modern Physics A 22, no. 27 (October 30, 2007): 5039–51. http://dx.doi.org/10.1142/s0217751x07038396.

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In this paper an overview of the Large Hadron Collider program and status is given, including a brief description of the scientific background from which this ambitious program evolved. The emphasis is on the status of the Standard Model Higgs Boson, searches for which are the key component of the LHC program. A description of the ATLAS one of the two large general purpose experiments designed to detect evidence for the Higgs Boson and other data of interest to searches for physics beyond the standard model.

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Potter, C. T. "NMSSM light decoupled Higgs singlet at CEPC." International Journal of Modern Physics A 32, no. 34 (December 10, 2017): 1746011. http://dx.doi.org/10.1142/s0217751x17460113.

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We describe the phenomenology of light singlet Higgs bosons in the Next-to-Minimal Supersymmetry Model (NMSSM) which are mostly decoupled from the rest of Supersymmetry. Noting that the Large Hadron Collider has not excluded this scenario, we describe previous searches for light Higgs bosons at the Large Electron Positron collider and evaluate the sensitivity to neutralino production and decay to light singlet Higgs bosons at the proposed [Formula: see text] GeV Circular Electron Positron Collider.

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Czodrowski, Patrick. "Searches for exotic phenomena with the ATLAS detector." International Journal of Modern Physics: Conference Series 39 (January 2015): 1560094. http://dx.doi.org/10.1142/s2010194515600940.

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Recent results of searches for exotic phenomena (new phenomena other than Supersymmetry) with the ATLAS experiment at the Large Hadron Collider conducted with proton–proton collision data at [Formula: see text][Formula: see text]TeV taken 2012 were presented.

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Bian, Ligong, Ning Chen, and Yun Jiang. "Higgs pair production in the CP-violating two-Higgs-doublet model." International Journal of Modern Physics A 32, no. 34 (December 10, 2017): 1746002. http://dx.doi.org/10.1142/s0217751x17460022.

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The SM-like Higgs pair production is discussed in the framework of the general CP-violating two-Higgs-doublet model, where we find that the CP-violating mixing angles can be related to the Higgs self-couplings. Therefore, the future experimental searches for Higgs boson pairs can be constrained by the improved precision of the electric dipole moment measurements. Based on a series of constraints of the SM-like Higgs boson signal fits, the perturbative unitarity and stability bounds to the Higgs potential, and the most recent LHC searches for heavy Higgs bosons, we suggest a set of benchmark models for the future high-energy collider searches for Higgs pair production. The [Formula: see text] colliders operating at [Formula: see text] are capable of measuring the Higgs cubic self-couplings of the benchmark models directly. We also estimate the cross sections of the resonance contributions to the Higgs pair productions for the benchmark models at the future LHC and SppC/FCC-hh runs.

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BHATTACHARYA, SATYAKI. "Higgs Search with the Compact Muon Solenoid(CMS) detector at the Large Hadron Collider(LHC)." International Journal of Modern Physics A 20, no. 15 (June 20, 2005): 3400–3402. http://dx.doi.org/10.1142/s0217751x05026649.

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The Large Hadron Collider(LHC) is a proton proton collider being built at CERN, Geneva which will collide two 7 TeV proton beams giving a center of mass energy of 14 TeV. The Compact Muon Solenoid (CMS) is a multi-purpose detector at the LHC which is designed to discover the Higgs boson over the mass range of 90 to 1000 GeV. Since LEP searches have put a 95% C.L. lower bound on (standard model) Higgs mass of 114.4 GeV and theory excludes mass above about 1 TeV, CMS should discover the Higgs if it exists. In this paper, we will review CMS's Higgs-discovery potential both in the Standard Model and the Minimal Supersymmetric Standard Model for Higgs bosons produced in gluon-gluon fusion and in vector boson fusion mechanisms. Particular emphasis will be placed on discovery in the early years of running with luminosity of about 2 × 1033cm-2/s.

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Blazey, Gerald C. "A QCD Survey: 0≤Q2≤105GeV2." International Journal of Modern Physics A 16, supp01a (October 2001): 41–52. http://dx.doi.org/10.1142/s0217751x01006292.

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Selected, recent results, primarily form collider experiments but including some fixed target experiments, are presented as a survey of Quantum Chromodynamics (QCD). The concepts of leading order and next-to-leading order QCD are introduced. Inclusive [Formula: see text] jet and dijet production and deep inelastic ep scattering at very large momentum transfer are shown to be in good agreement with perturbative QCD (pQCD). Dijet, three-jet and multi-jet results from [Formula: see text], ep, and ee colliders Q2 are also compared to pQCD. BFKR searches from all three colliders are discussed. Recent measurements of structure functions and contributions to the parton distribution functions are presented. New measurements of αs are summarized, the world average is αs = 0.1184 ± 0.0031.

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Askew, Andrew, Sushil Chauhan, Björn Penning, William Shepherd, and Mani Tripathi. "Searching for dark matter at hadron colliders." International Journal of Modern Physics A 29, no. 23 (September 16, 2014): 1430041. http://dx.doi.org/10.1142/s0217751x14300415.

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Theoretical and experimental techniques employed in dedicated searches for dark matter at hadron colliders are reviewed. Bounds from the 7 TeV and 8 TeV proton–proton collisions at the Large Hadron Collider (LHC) on dark matter interactions have been collected and the results interpreted. We review the current status of the Effective Field Theory picture of dark matter interactions with the Standard Model. Currently, LHC experiments have stronger bounds on operators leading to spin-dependent scattering than direct detection experiments, while direct detection probes are more constraining for spin-independent scattering for WIMP masses above a few GeV.

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Adli, Erik. "Plasma wakefield linear colliders—opportunities and challenges." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 377, no. 2151 (June 24, 2019): 20180419. http://dx.doi.org/10.1098/rsta.2018.0419.

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A linear electron-positron collider operating at TeV-scale energies will provide high precision measurements and allow, for example, precision studies of the Higgs boson as well as searches for physics beyond the standard model. A future linear collider should produce collisions at high energy, with high luminosity and with a good wall plug to beam power transfer efficiency. The luminosity per power consumed is a key metric that can be used to compare linear collider concepts. The plasma wakefield accelerator has demonstrated high-gradient, high-efficiency acceleration of an electron beam and is therefore a promising technology for a future linear collider. We will go through the opportunities of using plasma wakefield acceleration technology for a collider, as well as a few of the collider-specific challenges that must be addressed in order for a high-energy, high luminosity-per-power plasma wakefield collider to become a reality. This article is part of the Theo Murphy meeting issue ‘Directions in particle beam-driven plasma wakefield acceleration’.

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CHEN, JIE, and TODD ADAMS. "HEAVY STABLE CHARGED PARTICLE SEARCHES AT THE LHC." International Journal of Modern Physics A 26, no. 20 (August 10, 2011): 3315–35. http://dx.doi.org/10.1142/s0217751x11053912.

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Several searches for heavy stable charged particles have recently been performed using data from [Formula: see text]pp collisions at the Large Hadron Collider (LHC). This review summarizes some of the theoretical and experimental motivations for such searches, and discusses searches for stable squarks, stable gluino, stable sleptons and multiply charged heavy stable particles with the CMS and ATLAS detectors.

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LAASANEN, ALVIN. "SEARCH FOR NEW PARTICLES IN CDF." Modern Physics Letters A 07, no. 29 (September 21, 1992): 2659–67. http://dx.doi.org/10.1142/s0217732392002123.

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BRANDT, GERHARD. "SEARCH FOR SQUARKS IN R-PARITY VIOLATING SUPERSYMMETRY IN ep COLLISIONS AT HERA." International Journal of Modern Physics A 28, no. 21 (August 20, 2013): 1330031. http://dx.doi.org/10.1142/s0217751x13300317.

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The search for squarks in R-parity violating supersymmetry in ep collisions at HERA is reviewed. In the full data sample used by the H1 collaboration corresponding to about 0.5 fb-1no deviation from Standard Model predictions was observed and limits were set in phenomenological models. For example, for a R-parity violating coupling of electromagnetic strength λ′11k= 0.3(k ∈ {1, 2}), the mass bound on the corresponding right-handed down-type squark is [Formula: see text]. The results are compared to other searches for supersymmetry. In particular, they are put in context with more recent results from the Large Hadron Collider (LHC). An outlook is given on search opportunities at a future ep collider.

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Gurtu, Atul. "Precision Tests of the Electroweak Theory." International Journal of Modern Physics A 18, no. 21 (August 20, 2003): 3591–627. http://dx.doi.org/10.1142/s0217751x03013958.

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Electroweak data from the high energy electron–positron and proton–antiproton colliders are reviewed. On the whole the data is consistent with and supports the predictions of the electroweak theory. However, a crucial prediction of the theory remains to be verified: the existence of the Higgs boson and its light mass, less than 193 GeV, obtained from a fit to all the data within the electroweak framework. The lower limit on its mass from direct searches being 114 GeV, the mass of the Higgs is fixed within a narrow range which is expected to be explored at the Fermilab Tevatron experiments or later at the Large Hadron Collider at CERN.

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REDLINGER, G. "SEARCHES FOR SUPERSYMMETRY WITH THE ATLAS DETECTOR." Modern Physics Letters A 27, no. 32 (October 11, 2012): 1230033. http://dx.doi.org/10.1142/s0217732312300339.

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This is a review of searches for supersymmetry (SUSY) with the ATLAS detector in proton–proton collisions at a center-of-mass energy of 7 TeV at the Large Hadron Collider (LHC) at CERN. The review covers results that have been published, or submitted for publication, up to September 2012, many of which cover the full 7 TeV data-taking period. No evidence for SUSY has been seen; some possibilities for future directions are discussed.

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Leinweber, Adam, and Martin White. "Utilizing Unsupervised Machine Learning in BSM Physics Searches At The LHC." EPJ Web of Conferences 245 (2020): 06021. http://dx.doi.org/10.1051/epjconf/202024506021.

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Recent searches for supersymmetric particles at the Large Hadron Collider have been unsuccessful in detecting any BSM physics. This is partially because the exact masses of supersymmetric particles are not known, and as such, searching for them is very difficult. The method broadly used in searching for new physics requires one to optimise on the signal being searched for, potentially suppressing sensitivity to new physics which may actually be present that does not resemble the chosen signal. The problem with this approach is that, in order to detect something with this method, one must already know what to look for. I will showcase one machine-learning technique that can be used to define a “signal-agnostic” search. This is a search that does not make any assumptions about the signal being searched for, allowing it to detect a signal in a more general way. This method is applied to simulated BSM physics data and the results are explored.

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ENARI, YUJI. "Search for New Physics in Lepton Flavor Violating τ Decays at Belle." International Journal of Modern Physics A 20, no. 15 (June 20, 2005): 3346–48. http://dx.doi.org/10.1142/s0217751x05026534.

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We report mainly on a search for lepton-flavor-violating τ decays involving π0/η/η′ final states using a sample of 153.8 fb-1, which was recorded with the Belle detector at the KEKB e+e- asymmetric-energy collider. We also present searches for other possible LFV tau decays, and discuss the relationship of our results to SUSY parameters.

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