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Littérature scientifique sur le sujet « New heavy gauge boson »

Auteur : Grafiati
Publié le 9 mars 2023
Mis à jour le 10 mars 2023

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Articles de revues sur le sujet "New heavy gauge boson"

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Kaneta, Kunio, Subeom Kang et Hye-Sung Lee. « Diphoton channel at the LHC experiments to find a hint for a new heavy gauge boson ». International Journal of Modern Physics A 31, no 27 (30 septembre 2016) : 1650159. http://dx.doi.org/10.1142/s0217751x16501591.

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Recently there has been a huge interest in the diphoton excess around 750 GeV reported by both ATLAS and CMS collaborations, although the newest analysis with more statistics does not seem to support the excess. Nevertheless, the diphoton channel at the LHC experiments are a powerful tool to probe a new physics. One of the most natural explanations of a diphoton excess, if it occurs, could be a new scalar boson with exotic colored particles. In this setup, it would be legitimate to ask what is the role of this new scalar in nature. A heavy neutral gauge boson [Formula: see text] is one of the traditional targets of the discovery at the collider experiments with numerous motivations. While the Landau–Yang theorem dictates the diphoton excess cannot be this spin-1 gauge boson, there is a strong correlation of a new heavy gauge boson and a new scalar boson which provides a mass to the gauge boson being at the same mass scale. In this paper, we point out a simple fact that a new scalar with a property similar to the recently highlighted 750 GeV would suggest an existence of a TeV scale [Formula: see text] gauge boson that might be within the reach of the LHC Run 2 experiments. We take a scenario of the well-motivated and popular gauged [Formula: see text] symmetry and require the gauge coupling unification to predict the mass and other properties of the [Formula: see text] and illustrate the discovery of the [Formula: see text] would occur during the LHC experiments.
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Ma, Ernest, et D. P. Roy. « Heavy triplet leptons and new gauge boson ». Nuclear Physics B 644, no 1-2 (novembre 2002) : 290–302. http://dx.doi.org/10.1016/s0550-3213(02)00815-5.

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Huyen, Vu Thi Ngoc, Hoang Ngoc Long, Tran Thanh Lam et Vo Quoc Phong. « Neutral Current in Reduced Minimal 3-3-1 Model ». Communications in Physics 24, no 2 (9 juillet 2014) : 97. http://dx.doi.org/10.15625/0868-3166/24/2/3774.

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This work is devoted for gauge boson sector of the recentlyproposed model based on \(\mathrm{SU}(3)_C\otimes \mathrm{SU}(3)_L\otimes \mathrm{U}(1)_X\) group with minimal content of leptons andHiggses. The limits on the masses of the bilepton gauge bosons andon the mixing angle among the neutral ones are deduced. Using theFritzsch anzats on quark mixing, we show that the third family ofquarks should be different from the first two. We obtain a lowerbound on mass of the new heavy neutral gauge boson as 4.032 TeV.Using data on branching decay rates of the \(Z\) boson, we can fix the limit to the \(Z\) and $Z^\prime$ mixing angle\(\phi\) as \(-0.001\le\phi\le 0.0003\).
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Hewett, J. L., et T. G. Rizzo. « HEAVY LEPTON PAIR PRODUCTION FROM NEW Z’ RESONANCES ». International Journal of Modern Physics A 02, no 04 (août 1987) : 1189–97. http://dx.doi.org/10.1142/s0217751x87000570.

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We examine the possibility that heavy lepton pair production can be significantly enhanced by the existence of a new neutral gauge boson, Z’, at SSC energies. We find that in some models, the heavy lepton production cross section resulting from this mechanism exceeds that from production via other scenarios.
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Tuominen, K. « Dynamical origin of the electroweak scale and a 125 GeV boson ». International Journal of Modern Physics A 32, no 35 (20 décembre 2017) : 1747008. http://dx.doi.org/10.1142/s0217751x1747008x.

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A fully dynamical origin for the masses of weak gauge bosons and heavy quarks of the Standard Model is considered. Electroweak symmetry breaking and the gauge boson masses arise from new strong dynamics, which leads to the appearance of a composite scalar in the spectrum of excitations. In order to generate mass for the Standard Model fermions, we consider extended gauge dynamics, effectively represented by four fermion interactions at presently accessible energies. By systematically treating these interactions, we show that they lead to a large reduction of the mass of the scalar resonance. Therefore, interpreting the scalar as the recently observed 125 GeV state, implies that the mass originating solely from new strong dynamics can be much heavier, of the order of 1 TeV. The couplings of the scalar resonance with the Standard Model gauge bosons and fermions are evaluated, and found to be compatible with the current LHC results.
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Serenkova, I. A., A. A. Pankov et V. A. Bednyakov. « Improved Constraints on the Heavy Gauge Bosons Decaying to Pairs of Electroweak Bosons by Using the Expected Run 3 Data and HL-LHC Options ». Nonlinear Phenomena in Complex Systems 25, no 4 (12 décembre 2022) : 318–25. http://dx.doi.org/10.33581/1561-4085-2022-25-4-318-325.

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The expected ATLAS Run 3 data set with time-integrated luminosity of 300 fb−1 and HL–LHC options at the LHC in the diboson channels are used to probe a simple benchmark model with an extended gauge sector, proposed by Altarelli et al. This model accommodates new charged W' and neutral Z' vector bosons with modified trilinear Standard Model gauge couplings, decaying into electroweak gauge boson pairs W Z or W W, where W / Z decay semileptonically. Also presented, from a similar analysis of W' and Z' bosons arising in the EGM, which can decay through W' → lν and Z' → ll , are limits on the W–W' and Z–Z' mixing parameters and the W' and Z' vector boson masses. We present upper limits on the mixing parameters, Z–Z' and W–W', by using the expected Run 3 data and HL–LHC options.
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Serenkova, I. A., A. A. Pankov et V. A. Bednyakov. « New heavy gauge bosons decaying to pair of electroweak bosons : prospect studies at Run 3 and HL-LHC with ATLAS ». Journal of Physics and Electronics 29, no 1 (7 septembre 2021) : 15–20. http://dx.doi.org/10.15421/332102.

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The expected ATLAS Run 3 data set with time-integrated luminosity of 300 fb-1 and HL-LHC option of the LHC with L = 3000 fb-1 in the diboson channels in semileptonic final states are used to probe a simple benchmark model with an extended gauge sector, proposed by Altarelli et al. This model accommodates new charged W' and neutral Z' vector bosons with modified trilinear Standard Model gauge couplings, decaying into electroweak gauge boson pairs WZ or WW , where W / Z decay semileptonically. We present upper limits on the mixing parameters, W - W' and Z- Z ' , by using the expected Run 3 data and HL-LHC options of the LHC.
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Lee, Tae Hoon, et Dae Sung Hwang. « CP Violation in SU(3) × U(1) Electroweak Model ». International Journal of Modern Physics A 12, no 24 (30 septembre 1997) : 4411–24. http://dx.doi.org/10.1142/s0217751x97002401.

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We study the charged and the neutral current interactions of quarks in an SU (3)L × U (1)X electroweak model. Based on the assumption that u-type quarks coincide with their mass eigenstates, we obtain a new mixing angle θ′ and another CP violating phase δ′ in the extra heavy quark sector besides the usual Kobayashi–Maskawa mixing matrix. This new phase δ′ does not effect a change in the mass matrix elements of the [Formula: see text] systems when θ′ is small, but extra heavy quarks and gauge bosons give rise to additional contribution to the real part of the off-diagonal mass matrix elements and then the CP violation parameter ε is modified. By requiring that the tree level FCNC does not have an important effect on the [Formula: see text] and [Formula: see text] mixings in this model, we obtain a new lower bound on the mass of the extra heavy neutral gauge boson as 1.8 TeV.
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Li, Bing An. « CURRENT ALGEBRA BASED EFFECTIVE CHIRAL THEORY OF MESONS AND A NEW EW THEORY ». International Journal of Modern Physics A 21, no 04 (10 février 2006) : 950–53. http://dx.doi.org/10.1142/s0217751x06032393.

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A current algebra based effective chiral theory of pseudoscalar, vector, axial-vector mesons is reviewed. A new mechanism generating the masses and guage fixing terms of gauge boson is revealed from this effective theory. A EW theory without Higgs is proposed. The masses and gauge fixing terms of W and Z are dynamically generated. Three heavy scalar fields are dynamically generated too. They are ghosts.
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HEWETT, J. L., et T. G. RIZZO. « NEW HEAVY LEPTON PAIR-PRODUCTION FROM Z′ RESONANCES AT HADRON COLLIDERS ». Modern Physics Letters A 03, no 06 (mai 1988) : 589–97. http://dx.doi.org/10.1142/s0217732388000702.

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We examine the possibility that heavy lepton (L) pair production can be significantly enhanced by the existence of a new neutral gauge boson Z′ in hadron collisions. We find that in several E6-type models, the [Formula: see text] production cross section far exceeds that expected in the standard model. This may allow for the observation of [Formula: see text] pairs above the large W+W− background.
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Thèses sur le sujet "New heavy gauge boson"

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Magass, Carsten. « Search for new heavy charged gauge bosons theory - experiment - analysis ». Saarbrücken VDM Verlag Dr. Müller, 2007. http://d-nb.info/988961385/04.

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Schnellbach, Yan-Jie. « Search for new heavy neutral gauge bosons in √s = 8 TeV pp collisions with ATLAS ». Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/2009919/.

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This thesis describes the search for new heavy neutral gauge bosons decaying into di-electron pairs, focussing on the Z′SSM boson described by the Sequential Standard Model. The analysis uses 20.3fb−1 of pp collisions at √s = 8TeV recorded with the ATLAS detector during the 2012 data taking period at the Large Hadron Collider at CERN. The invariant mass spectrum of di-electron pairs is used as the search variable and is analysed in the region 80 GeV < mee < 4500 GeV. The spectrum is compared to the Standard Model expectation dominated by the neutral current Drell-Yan process. Several novel techniques are developed to improve the description of both, the Drell-Yan process and photon-induced di-lepton production. As no significant excess is found in the data, statistical techniques are used to interpret the result as limits on the production and decay of a new heavy gauge boson. A 95% C.L. Bayesian lower limit is set on the Z′SSM mass at 2.78TeV with a corresponding upper limit on the Z′SSM cross-section times branching ratio σ × Br(Z′SSM → e+e−) of 3.53 × 10−4 pb.
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Kay, Ellis. « Search for new heavy gauge bosons in √s = 13 TeV pp collisions with the ATLAS detector ». Thesis, University of Liverpool, 2018. http://livrepository.liverpool.ac.uk/3026560/.

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In this thesis, the search for a new heavy charged gauge boson, namely the W', in the context of the Sequential Standard Model is described. The study presented here focuses on W' decays to an electron and a neutrino. The analysis utilises 36.1 fb-1 of √s = 13 TeV proton-proton (pp) collision data recorded using the ATLAS detector over the 2015 and 2016 data taking periods at the Large Hadron Collider at CERN. The transverse mass, mT, is used as the search variable and is analysed over the region 150 < mT < 6000 GeV. The mT spectrum for selected W' candidates is compared to the Standard Model expectation, which is quantified using a combination of simulated Standard Model predictions with state-of-the-art theory corrections, and data-driven methods. No significant excess is observed above the Standard Model, therefore statistical techniques are adopted in order to obtain limits on the production and decay of this new gauge boson. A frequentist framework widely used in the ATLAS community is adapted for the statistical analysis presented here, in a departure from the Bayesian tools historically used for this analysis. Frequentist tools are used to set a 95% CL lower limit on the W' SSM transverse mass of 5.1 TeV. A novel reinterpretation of W' → ℓℓ and Z' → ℓν results in the context of a Heavy Vector Triplet model is also presented. Using the newly adapted frequentist statistical tools, combined V' → ℓℓ/ℓν resonances with masses below 4.67 TeV are excluded at 95% CL. A full combination of these results with those obtained from searches for diboson resonances (VV +VH) is described, with final two-dimensional limits set in two coupling planes (based on the couplings to fermions and the Higgs boson). The resulting exclusion limits are compared to indirect limits from various EW fits (including LEP), proving to provide more stringent constraints over the majority of the tested parameter space.
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DE, GUIO FEDERICO. « Search for a heavy gauge boson w' in the final state with electron and large missing energy in p-p collisions at sqrt(s) = 7 TeV ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2012. http://hdl.handle.net/10281/29499.

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In this thesis work the search for a new heavy charged gauge boson, with 1.13 inverse femtobarn of data collected in 2011 with the CMS detector at the LHC, is performed accordingly to the Reference Model by Altarelli. The Model is a generalization of the Left-Right-Symmetric Model where the gauge group of the Standard Model of elementary particles is enlarged in order to restore the Lagrangian left-right symmetry. As a consequence new heavy gauge bosons, W′ and Z′, come out as heavy partners of the Standard Model W and Z bosons. The W′ particle is searched for in the decay channel W′ → eν. The electromagnetic calorimeter of CMS plays a central role in the analysis and its performances are discussed in detail together with methods to calibrate and monitor its response. Since no excess with respect to the Standard Model background prediction were observed in the analyzed dataset, an upper limit on the W′ production cross section times branching fraction is set. The analysis result can be translated into a lower limit on the mass of the potential W′ of 2.15 TeV/c² at 95% CL.
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Jensen, Eric Lyle. « A search for a new gauge boson ». W&M ScholarWorks, 2013. https://scholarworks.wm.edu/etd/1539623635.

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In the Standard Model, gauge bosons mediate the strong, weak, and electromagnetic forces. New forces could have escaped detection only if their mediators are either heavier than O (TeV) or weakly coupled to charged matter. New vector bosons with small coupling a' arise naturally from a small kinetic mixing with the photon and have received considerable attention as an explanation of various dark matter related anomalies. Such particles could be produced in electron-nucleus fixed-target scattering and then decay to e+ e -- pairs. New light vector bosons and their associated forces are a common feature of Standard Model extensions, but existing constraints are remarkably sparse. The APEX experiment will search for a new gauge boson A' with coupling alpha'/alphafs ≳ 6 x 10--8 to electrons in the mass range 65 MeV< mA'< 550 MeV. The experiment will study e + e-- production off an electron beam incident on a high-Z target in hall A at Jefferson Lab. The e-- and e+ will be detected in the High Resolution Spectrometers (HRSs). The invariant mass spectrum of the e+ e -- pairs will be scanned for a narrow resonance corresponding to the mass of the A'. A test run for the APEX experiment was held in the summer of 2010. Using the test run data, an A' search was performed in the mass range 175-250 MeV. The search found no evidence for an A' → e+ e-- reaction, and set an upper limit of alpha'/alpha fs ≳ 10--6.
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Harris, Melissa. « Left-Right Symmetric Model : Putting lower bounds on the mass of the heavy, charged WR gauge boson ». Thesis, Uppsala universitet, Högenergifysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-329683.

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In this project I have studied the left-right symmetric model (LRSM) as a candidate beyond standard model theory of particle physics. The most common version of the theory, called the minimal LRSM, has been studied and tested extensively for several decades. I have therefore modied this minimal LRSM by adapting the scalar sector and computing the mass of the charged right-handed gauge bosons WR for this particular scalar sector. I carried out a study of the theory and implemented it into FeynRules, in order to simulate LHC events using MadGraph. This allowed computation of the cross-section for the decay WR to a top and a bottom quark as a function of the mass of WR , which was compared with CMS data for the same decay, with proton-proton collisions at a centre of mass energy of 13 TeV. The final result was a constraint on the mass of WR , with a lower bound of 3 TeV.
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Köneke, Karsten [Verfasser], et Karl [Akademischer Betreuer] Jakobs. « Electroweak interactions, the Higgs Boson, and the search for new heavy Bosons ». Freiburg : Universität, 2017. http://d-nb.info/1169571735/34.

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Kim, Hyunsoo. « A search for a new charged heavy vextor boson decaying to a [mu nu] pair ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq41027.pdf.

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Gintner, Mikulas Carleton University Dissertation Physics. « Gauge-boson self-interactions and tt production as probes of new physics at high energy e+e- colliders ». Ottawa, 1997.

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Gintner, Mikulás. « Gauge-boson self-interactions and t ¢t production as probes of new physics at high energy e(+)e(-) colliders ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ26853.pdf.

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Livres sur le sujet "New heavy gauge boson"

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Kim, Hyunsoo. A search for a new charged heavy vector boson decaying : To a [mu][nu] pair. 1999.

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Kenyon, Ian R. Quantum 20/20. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198808350.001.0001.

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This text reviews fundametals and incorporates key themes of quantum physics. One theme contrasts boson condensation and fermion exclusivity. Bose–Einstein condensation is basic to superconductivity, superfluidity and gaseous BEC. Fermion exclusivity leads to compact stars and to atomic structure, and thence to the band structure of metals and semiconductors with applications in material science, modern optics and electronics. A second theme is that a wavefunction at a point, and in particular its phase is unique (ignoring a global phase change). If there are symmetries, conservation laws follow and quantum states which are eigenfunctions of the conserved quantities. By contrast with no particular symmetry topological effects occur such as the Bohm–Aharonov effect: also stable vortex formation in superfluids, superconductors and BEC, all these having quantized circulation of some sort. The quantum Hall effect and quantum spin Hall effect are ab initio topological. A third theme is entanglement: a feature that distinguishes the quantum world from the classical world. This property led Einstein, Podolsky and Rosen to the view that quantum mechanics is an incomplete physical theory. Bell proposed the way that any underlying local hidden variable theory could be, and was experimentally rejected. Powerful tools in quantum optics, including near-term secure communications, rely on entanglement. It was exploited in the the measurement of CP violation in the decay of beauty mesons. A fourth theme is the limitations on measurement precision set by quantum mechanics. These can be circumvented by quantum non-demolition techniques and by squeezing phase space so that the uncertainty is moved to a variable conjugate to that being measured. The boundaries of precision are explored in the measurement of g-2 for the electron, and in the detection of gravitational waves by LIGO; the latter achievement has opened a new window on the Universe. The fifth and last theme is quantum field theory. This is based on local conservation of charges. It reaches its most impressive form in the quantum gauge theories of the strong, electromagnetic and weak interactions, culminating in the discovery of the Higgs. Where particle physics has particles condensed matter has a galaxy of pseudoparticles that exist only in matter and are always in some sense special to particular states of matter. Emergent phenomena in matter are successfully modelled and analysed using quasiparticles and quantum theory. Lessons learned in that way on spontaneous symmetry breaking in superconductivity were the key to constructing a consistent quantum gauge theory of electroweak processes in particle physics.
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Chapitres de livres sur le sujet "New heavy gauge boson"

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Malberti, M. « New Heavy Gauge Boson Searches with CMS ». Dans NATO Science for Peace and Security Series B : Physics and Biophysics, 163–71. Dordrecht : Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2287-5_17.

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Fayet, Pierre. « Gauge Boson/Higgs Boson Unification, N = 2 Supersymmetry, Grand Unification, and New Spacetime Dimensions ». Dans Particle Physics, 1–18. Boston, MA : Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-1877-4_1.

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Kulesza, A., et W. J. Stirling. « Heavy Gauge Boson Production at Small Transverse Momentum in Hadron-Hadron Collisions ». Dans Particle Physics : Ideas and Recent Developments, 235–44. Dordrecht : Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4128-4_9.

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Verzegnassi, C. « Searches for a New Gauge Boson at Different LEP Phases ». Dans Radiative Corrections for e+e- Collisions, 231–43. Berlin, Heidelberg : Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74925-4_14.

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Zichichi, A. « The Problem of New Heavy Flavors : Top and Superbeauty ». Dans How Far Are We from the Gauge Forces, 503–72. Boston, MA : Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-5086-6_12.

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Zinn-Justin, Jean. « Quantum field theory (QFT) at finite temperature : Equilibrium properties ». Dans Quantum Field Theory and Critical Phenomena, 786–830. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198834625.003.0033.

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Some equilibrium properties in statistical quantum field theory (QFT), that is, relativistic QFT at finite temperature are reviewed. Study of QFT at finite temperature is motivated by cosmological problems, high energy heavy ion collisions, and speculations about possible phase transitions, also searched for in numerical simulations. In particular, the situation of finite temperature phase transitions, or the limit of high temperature (an ultra-relativistic limit where the temperature is much larger than the physical masses of particles) are discussed. The concept of dimensional reduction emerges, in many cases, statistical properties of finite-temperature QFT in (1, d − 1) dimensions can be described by an effective classical statistical field theory in (d − 1) dimensions. Dimensional reduction generalizes a property already observed in the non-relativistic example of the Bose gas, and indicates that quantum effects are less important at high temperature. The corresponding technical tools are a mode-expansion of fields in the Euclidean time variable, singling out the zero modes of boson fields, followed by a local expansion of the resulting (d − 1)-dimensional effective field theory (EFT). Additional physical intuition about QFT at finite temperature in (1, d−1) dimensions can be gained by considering it as a classical statistical field theory in d dimensions, with finite size in one dimension. This identification makes an analysis of finite temperature QFT in terms of the renormalization group (RG), and the theory of finite-size effects of the classical theory, possible. These ideas are illustrated with several simple examples, the φ4 field theory, the non-linear σ-model, the Gross–Neveu model and some gauge theories.
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Morales, Juan Antonio, et Paul Reding. « Afterword ». Dans Monetary Policy in Low Financial Development Countries, 317–20. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198854715.003.0008.

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While we were finalizing this book, the corona virus pandemic struck. It affected all countries around the world, causing heavy human suffering everywhere. Its economic consequences can probably be expected to be dire for many LFDCs, of which most are low-income countries. At the time of writing, the severity of the longer-term consequences of the pandemic for these countries is difficult to gauge. We nevertheless feel it necessary to briefly assess how the environment in which monetary policy is deployed in LFDCs could be affected, and discuss the new challenges that are raised....
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Hough, Susan Elizabeth, et Roger G. Bilham. « The 1886 Charleston, South Carolina, Earthquake ». Dans After the Earth Quakes. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780195179132.003.0008.

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By 1886 the population of the United States had grown to over 50 million people. Both the East Coast and the Midwest were by this time well populated with bustling towns and cities. Railroads had sprung up as well, greatly facilitating land travel, which in turn helped spark further migration and trade. The tide of westward expansion had long since steamrolled over whatever reservations the New Madrid earthquakes might have caused. By 1886 the gold rush was already several decades old, and San Francisco had grown into a lively urban center with a population of 35,000—about 5,000 more than the population of Chicago. A number of notable earthquakes had occurred in California by the end of the 19th century. While the massive Fort Tejon earthquake of 1857 occurred too early in the state’s history to leave a lasting impression on the collective psyche, large earthquakes along the eastern Sierras in 1872 and on the Hayward fault in 1872 had begun to suggest that California might be earthquake country. Still, as of the late 1800s people had nothing approaching a modern understanding of earthquakes—neither their underlying physical processes nor their fundamental characteristics. As the 19th century drew to a close, scientists did not have any way to gauge the overall size of an earthquake, for scales had been developed only to rank the severity of shaking from a particular earthquake at a particular location. Whereas scientists today can easily rank temblors in terms of their overall size, or energy release, in earlier times people could only gauge an earthquake’s overall effects, an assessment that can sometimes prove misleading. For example, the overall reach of earthquake shaking depends on the nature of the rocks through which the waves travel. As noted in chapter 5, waves travel especially efficiently in central and eastern North America, and especially inefficiently in California. Thus an earthquake of a given magnitude will pack a disproportionately heavy punch in the former region.
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Actes de conférences sur le sujet "New heavy gauge boson"

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Wulz, Claudia. « Search for new heavy gauge bosons at CMS ». Dans 36th International Conference on High Energy Physics. Trieste, Italy : Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.174.0189.

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Gilles, Geoffrey. « A search of new charged heavy gauge W' bosons with the ATLAS detector at the LHC ». Dans The European Physical Society Conference on High Energy Physics. Trieste, Italy : Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.180.0083.

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Glazek, S. D. « Gauge boson mass as regulator of front-form dynamics ». Dans Light Cone 2019 - QCD on the light cone : from hadrons to heavy ions. Trieste, Italy : Sissa Medialab, 2020. http://dx.doi.org/10.22323/1.374.0042.

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Toscano, J. J. « New physics effects in trilinear electroweak gauge boson couplings ». Dans PARTICLES AND FIELDS : X Mexican Workshop on Particles and Fields. AIP, 2006. http://dx.doi.org/10.1063/1.2359396.

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Kniehl, Bernd A. « Decoupling of heavy quarks from QCD and applications in Higgs-boson phenomenology ». Dans New directions in quantum chromodynamics. AIP, 1999. http://dx.doi.org/10.1063/1.1301685.

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Kostic, M. Milos, Laurie E. Collins, Atul Kapoor et Randy D. O’Hara. « Development of Heavy Gauge X80 Linepipe ». Dans 1998 2nd International Pipeline Conference. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/ipc1998-2078.

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New large diameter pipeline projects for transmission of gas from western Canada propose the use of operating pressures as high as 12kPa (1740 psi). These operating pressures will require linepipe with increased wall thickness. As well, X80 grades are now an economic alternative to X70 for these major projects. X80 was first commercially produced in North America by IPSCO in 1994. However, to extend IPSCO’s capability to heavier gauges, a significant metallurgical development program was necessary. Particular attention has focussed on achieving more demanding impact toughness requirements. This program has resulted in the successful production of X80 linepipe in gauges as heavy as 15.3 mm. The paper will review the experimental development of heavy gauge linepipe.
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Ficocelli, Peter, Christopher Baldwin, Andre Vincelette et Praise Luckanachai. « Accuracy and Reliability of a New-Generation Optical PT Gauge in a SAGD Field Trial ». Dans SPE Canada Heavy Oil Technical Conference. Society of Petroleum Engineers, 2016. http://dx.doi.org/10.2118/180758-ms.

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Collins, L. E., K. Dunnett, T. Hylton et A. Ray. « Development of Heavy Gauge X70 Helical Line Pipe ». Dans 2018 12th International Pipeline Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ipc2018-78763.

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A decade ago, the pipeline industry was actively exploring the use of high strength steels (X80 and greater) for long distance, large diameter pipelines operating at high pressures. However in recent years the industry has adopted a more conservative approach preferring to utilize well established X70 grade pipe in heavier wall thicknesses to accommodate the demand for increased operating pressures. In order to meet this demand, EVRAZ has undertaken a substantial upgrade of both its steelmaking and helical pipemaking facilities. The EVRAZ process is relatively unique employing electric arc furnace (EAF) steelmaking to melt scrap, coupled with Steckel mill rolling for the production of coil which is fed into helical DSAW pipe mills for the production of large diameter line pipe in lengths up to 80 feet. Prior to the upgrade production had been limited to a maximum finished wall thickness of ∼17 mm. The upgrades have included installation of vacuum de-gassing to reduce hydrogen and nitrogen levels, upgrading the caster to improve cast steel quality and allow production of thicker (250 mm) slabs, upgrades to the power trains on the mill stands to achieve greater rolling reductions, replacement of the laminar flow cooling system after rolling and installation of a downcoiler capable of coiling 25.4 mm X70 material. As well a new helical DSAW mill has been installed which is capable of producing large diameter pipe in thicknesses up to 25.4 mm. The installation of the equipment has provided both opportunities and challenges. Specific initiatives have sought to produce X70 line pipe in thicknesses up to 25.4 mm, improve low temperature toughness and expand the range of sour service grades available. This paper will focus on alloy design and rolling strategies to achieve high strength coupled with low temperature toughness. The role of improved centerline segregation control will be examined. The use of scrap as a feedstock to the EAF process results in relatively high nitrogen contents compared to blast furnace (BOF) operations. While nitrogen can be reduced to some extent by vacuum de-gassing, rolling practices must be designed to accommodate nitrogen levels of 60 ppm. Greater slab thickness allows greater total reduction, but heat removal considerations must be addressed in optimization of rolling schedules to achieve suitable microstructures to achieve both strength and toughness. This optimization requires definition of the reductions to be accomplished during roughing (recrystallization rolling to achieve a fine uniform austenite grain size) and finishing (pancaking to produce heavily deformed austenite) and specification of cooling rates and coiling temperatures subsequent to rolling to obtain suitable transformation microstructures. The successful process development will be discussed.
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Xiao, C. W., A. Ozpineci et E. Oset. « New hidden beauty molecules predicted by the local hidden gauge approach and heavy quark spin symmetry ». Dans Seventh International Symposium on Chiral Symmetry in Hadrons and Nuclei. WORLD SCIENTIFIC, 2014. http://dx.doi.org/10.1142/9789814618229_0039.

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Xiao, Chuwen. « New Hidden beauty molecules predicted by the local hidden gauge approach and heavy quark spin symmetry ». Dans XV International Conference on Hadron Spectroscopy. Trieste, Italy : Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.205.0199.

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Rapports d'organisations sur le sujet "New heavy gauge boson"

1

Magass, Carsten Martin. Search for new heavy charged gauge bosons. Office of Scientific and Technical Information (OSTI), novembre 2007. http://dx.doi.org/10.2172/919581.

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Jensen, Eric L. A search for a new gauge boson A'. Office of Scientific and Technical Information (OSTI), août 2013. http://dx.doi.org/10.2172/1133073.

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Hewett, J. L., et T. G. Rizzo. The effects of detector descoping and neutral boson mixing on new gauge boson physics at the SSC. Office of Scientific and Technical Information (OSTI), juin 1992. http://dx.doi.org/10.2172/10141481.

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Kim, Hyunsoo. A search for a new charged heavy vector boson decaying to a muon-neutrino pair. Office of Scientific and Technical Information (OSTI), janvier 1999. http://dx.doi.org/10.2172/1371867.

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Kim, Jieun. Search for a new charged heavy vector boson decaying to an electron-neutrino pair in p$\bar{p}$ collisions at √s = 1.96 TeV. Office of Scientific and Technical Information (OSTI), juin 2005. http://dx.doi.org/10.2172/892319.

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