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Journal articles on the topic 'Higgs potential'

Author: Grafiati

Published: 14 March 2023

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1

SOPCZAK, ANDRÉ. "HIGGS BOSON DISCOVERY POTENTIAL BEYOND THE MINIMAL STANDARD MODEL." International Journal of Modern Physics A 09, no. 11 (April 30, 1994): 1747–85. http://dx.doi.org/10.1142/s0217751x94000753.

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Detailed studies of neutral and charged Higgs boson pair production with full statistic detector simulations around [Formula: see text] with 500 pb−1 are presented in the context of a review of the Higgs boson discovery potential at LEP200. Already in the first phase of LEP200, a significant increase of the mass parameter space compared to LEP1 for the discovery of nonminimal Higgs bosons will be possible, while the mass range for the discovery of the minimal Standard Model Higgs boson will increase only marginally. The requirements for a decisive test of the Minimal Supersymmetric extension of the Standard Model (MSSM) at a later stage of LEP200 are discussed. A sensitivity mass range is given for charged Higgs bosons.

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2

Jora, Renata. "Standard Model Effective Potential from Trace Anomalies." Advances in High Energy Physics 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/5294394.

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By analogy with the low energy QCD effective linear sigma model, we construct a standard model effective potential based entirely on the requirement that the tree level and quantum level trace anomalies must be satisfied. We discuss a particular realization of this potential in connection with the Higgs boson mass and Higgs boson effective couplings to two photons and two gluons. We find that this kind of potential may describe well the known phenomenology of the Higgs boson.

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3

Gies, Holger, and René Sondenheimer. "Renormalization group flow of the Higgs potential." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376, no. 2114 (January 22, 2018): 20170120. http://dx.doi.org/10.1098/rsta.2017.0120.

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We summarize results for local and global properties of the effective potential for the Higgs boson obtained from the functional renormalization group, which allows one to describe the effective potential as a function of both scalar field amplitude and renormalization group scale. This sheds light onto the limitations of standard estimates which rely on the identification of the two scales and helps in clarifying the origin of a possible property of meta-stability of the Higgs potential. We demonstrate that the inclusion of higher-dimensional operators induced by an underlying theory at a high scale (GUT or Planck scale) can relax the conventional lower bound on the Higgs mass derived from the criterion of absolute stability. This article is part of the Theo Murphy meeting issue ‘Higgs cosmology’.

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4

Greco, Mario. "Physics potential and motivations for a muon collider." International Journal of Modern Physics A 31, no. 18 (June 29, 2016): 1630028. http://dx.doi.org/10.1142/s0217751x16300283.

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The discovery of the Higgs particle is demanding a detailed knowledge of the properties of this fundamental component of the Standard Model. From the available data however, it cannot be concluded yet that we have found the SM Higgs boson and not one of the scalars postulated within the possible extensions of the SM. It is shown that a Higgs factory through a muon collider is particularly appropriate for precision studies of the properties of this particle. However sizable QED radiative effects — of order of 50% — must be carefully taken into account for a precise measurement of the leptonic and total widths of the Higgs particle. The results presented here are mainly based on a recent work in collaboration of Tao Han and Zhen Liu.

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5

Melo, Ivan. "Higgs potential and fundamental physics." European Journal of Physics 38, no. 6 (October 24, 2017): 065404. http://dx.doi.org/10.1088/1361-6404/aa8c3d.

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6

Quadri, A. "Higgs potential from derivative interactions." International Journal of Modern Physics A 32, no. 16 (June 2017): 1750089. http://dx.doi.org/10.1142/s0217751x17500890.

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A formulation of the linear [Formula: see text] model with derivative interactions is studied. The classical theory is on-shell equivalent to the [Formula: see text] model with the standard quartic Higgs potential. The mass of the scalar mode only appears in the quadratic part and not in the interaction vertices, unlike in the ordinary formulation of the theory. Renormalization of the model is discussed. A nonpower-counting renormalizable extension, obeying the defining functional identities of the theory, is presented. This extension is physically equivalent to the tree-level inclusion of a dimension-six effective operator [Formula: see text]. The resulting UV divergences are arranged in a perturbation series around the power-counting renormalizable theory. The application of the formalism to the Standard Model in the presence of the dimension-six operator [Formula: see text] is discussed.

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7

Dehnen, H., and H. Frommert. "Scalar gravity and Higgs potential." International Journal of Theoretical Physics 29, no. 4 (April 1990): 361–70. http://dx.doi.org/10.1007/bf00674437.

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8

Trinhammer, Ole L. "Dark energy from Higgs potential." EPL (Europhysics Letters) 130, no. 2 (June 1, 2020): 29002. http://dx.doi.org/10.1209/0295-5075/130/29002.

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9

Haba, Naoyuki, Shigeki Matsumoto, Nobuchika Okada, and Toshifumi Yamashita. "Effective Potential of Higgs Field in Warped Gauge-Higgs Unification." Progress of Theoretical Physics 120, no. 1 (July 2008): 77–98. http://dx.doi.org/10.1143/ptp.120.77.

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10

Yan, Qi-Shu. "Probe Higgs potential via multi-Higgs boson final states at hadron colliders." International Journal of Modern Physics A 31, no. 33 (November 22, 2016): 1644010. http://dx.doi.org/10.1142/s0217751x16440103.

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I summarize some results related with the determination of the Higgs potential, including a hadron-level Monte Carlo study of the sensitivity of Higgs boson pair production via the [Formula: see text] channel with the final state [Formula: see text] and the sensitivity study on the triple Higgs boson final state via [Formula: see text] in a 100 TeV collider.

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11

Liang, Hao, and Manqi Ruan. "Detector Performance and Physics Potential at CEPC." International Journal of Modern Physics: Conference Series 46 (January 2018): 1860086. http://dx.doi.org/10.1142/s2010194518600868.

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The Circular Electron Position Collider (CEPC) is a future [Formula: see text] and Higgs bosons factory, which targets precision electroweak and Higgs measurements. The simulation, reconstruction, analysis chain has been established at CEPC. The detector design parameters were optimized according to several performances of key physical objects. The physics potential has been studied for the detector geometry CEPC_v1.

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12

Oda, Ichiro. "Higgs potential from Weyl conformal gravity." Modern Physics Letters A 35, no. 37 (October 5, 2020): 2050304. http://dx.doi.org/10.1142/s0217732320503046.

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We consider Weyl’s conformal gravity coupled to a complex matter field in Weyl geometry. It is shown that a Higgs potential naturally arises from a [Formula: see text] term in moving from the Jordan frame to the Einstein frame. A massless Nambu–Goldstone boson, which stems from spontaneous symmetry breakdown of the Weyl gauge invariance, is absorbed into the Weyl gauge field, thereby the gauge field becoming massive. We present a model where the gravitational interaction generates a Higgs potential whose form is a perfect square. Finally, we show that a theory in the Jordan frame is gauge-equivalent to the corresponding theory in the Einstein frame via the BRST formalism.

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13

Kakizaki, Mitsuru, and Shin Suzuki. "Higgs potential in gauge-Higgs unification with a flat extra dimension." Physics Letters B 822 (November 2021): 136637. http://dx.doi.org/10.1016/j.physletb.2021.136637.

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14

Chun, Eung Jin, Sunghoon Jung, and Hyun Min Lee. "Radiative generation of the Higgs potential." Physics Letters B 725, no. 1-3 (August 2013): 158–63. http://dx.doi.org/10.1016/j.physletb.2013.06.055.

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15

Choudhury, Sayantan, Trina Chakraborty, and Supratik Pal. "Higgs inflation from new Kähler potential." Nuclear Physics B 880 (March 2014): 155–74. http://dx.doi.org/10.1016/j.nuclphysb.2014.01.002.

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16

Sher, Marc. "Electroweak Higgs potential and vacuum stability." Physics Reports 179, no. 5-6 (August 1989): 273–418. http://dx.doi.org/10.1016/0370-1573(89)90061-6.

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17

Farakos, K., G. Koutsoumbas, M. Surridge, and G. Zoupanos. "Dimensional reduction and the Higgs potential." Nuclear Physics B 291 (January 1987): 128–40. http://dx.doi.org/10.1016/0550-3213(87)90468-8.

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18

Kondrashuk, I. N. "Minimization of the Scalar Potential in Softly Broken SU(2)×U(1)N=1 SYM with Higgs Matter." Modern Physics Letters A 12, no. 04 (February 10, 1997): 257–64. http://dx.doi.org/10.1142/s021773239700025x.

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We consider a particular extension of the scalar two-Higgs potential of the Minimal Supersymmetric Standard Model to an arbitrary number of Higgs doublets. The extended potential has an absolute and only nontrivial minimum that is found exactly. It appears that this minimum is a simple analog to the well-known minimum of the MSSM. This result is applied to a low-energy Higgs potential of the finite Grand Unification Theory where six Higgs doublets are present.

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19

ODA, ICHIRO, and SHIGEAKI YAHIKOZAWA. "TOPOLOGICAL HIGGS MECHANISM WITH ORDINARY HIGGS MECHANISM." Modern Physics Letters A 06, no. 04 (February 10, 1991): 295–302. http://dx.doi.org/10.1142/s0217732391000269.

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Topological Higgs mechanism in higher dimensions is analyzed when ordinary Higgs potential exists. It is shown that if 1-form B field becomes massive by the ordinary Higgs mechanism, another D-2 form C field also becomes massive through topological term in addition to the topological mass generation by the topological Higgs mechanism. Moreover, we investigate this mechanism in 3-dimensional theories, that is to say, Chern-Simons theory and more general theory.

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20

Zhao, Shu-Min, Xi Wang, Xing-Xing Dong, Hai-Bin Zhang, and Tai-Fu Feng. "A Study of the Higgs Mass with the Effective Potential and Higgs Decays in the U(1)XSSM." Symmetry 14, no. 10 (October 14, 2022): 2153. http://dx.doi.org/10.3390/sym14102153.

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As the U(1) extension of the minimal supersymmetric standard model, the U(1)XSSM has new superfields, such as right-handed neutrinos, and three Higgs singlets. In the U(1)XSSM, the lightest CP-even Higgs mass mh0 is studied by using the Higgs effective potential with one-loop corrections. We also calculate the Higgs decays h0→γγ, h0→VV(V=W,Z), h0→ll¯Z, and h0→νν¯Z. The obtained results are reasonable, and they are in favor of the study of the Higgs characteristic and the phenomenology of the U(1)XSSM.

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21

Ait-Ouazghour, B., and M. Chabab. "The Higgs potential in 2HDM extended with a real triplet scalar: A roadmap." International Journal of Modern Physics A 36, no. 19 (July 3, 2021): 2150131. http://dx.doi.org/10.1142/s0217751x21501311.

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We perform a comprehensive study of the Higgs potential of the two Higgs doublet model extended by a real triplet scalar field [Formula: see text]. This model, dubbed [Formula: see text], has a rich Higgs spectrum consisting of three CP-even Higgs [Formula: see text], one CP-odd [Formula: see text] and two pairs of charged Higgs [Formula: see text]. First, we determine the perturbative unitarity constraints and a set of nontrivial conditions for the boundedness from below (BFB). Then we derive the Veltman conditions by considering the quadratic divergencies of Higgs boson self-energies in [Formula: see text]. We find that the parameter space is severely delimited by these theoretical constraints, as well as experimental exclusion limits and Higgs signal rate measurements at LEP and LHC. Using HiggsBounds-5.3.2beta and HiggSignals-2.2.3beta public codes, an exclusion test at [Formula: see text] is then performed on the physical scalars of [Formula: see text]. Our analysis provides a clear insight on the nonstandard scalar masses, showing that the allowed ranges are strongly sensitive to the sign of mixing angle [Formula: see text], essentially when naturalness is involved. For [Formula: see text] scenario, our results place higher limits on the bounds of all scalar masses, and show that the pairs [Formula: see text] and [Formula: see text] are nearly mass degenerate varying within the intervals [Formula: see text] GeV and [Formula: see text] GeV, respectively. When [Formula: see text] turns positive, we show that consistency with theoretical constraints and current LHC data, essentially on the diphoton decay channel, favors Higgs masses varying within wide allowed ranges: [Formula: see text] GeV for [Formula: see text]; [Formula: see text] GeV for ([Formula: see text], [Formula: see text]) and [Formula: see text] GeV for ([Formula: see text], [Formula: see text]). Finally, we find that the [Formula: see text] and [Formula: see text] Higgs decay modes are generally correlated if [Formula: see text] lies within the reduced intervals [Formula: see text] and [Formula: see text] parameter is frozen around [Formula: see text] ([Formula: see text]) for [Formula: see text] ([Formula: see text]).

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22

Oikonomou, Vasilis K. "Uniqueness of the Inflationary Higgs Scalar for Neutron Stars and Failure of Non-Inflationary Approximations." Symmetry 14, no. 1 (December 28, 2021): 32. http://dx.doi.org/10.3390/sym14010032.

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Neutron stars are perfect candidates to investigate the effects of a modified gravity theory, since the curvature effects are significant and more importantly, potentially testable. In most cases studied in the literature in the context of massive scalar-tensor theories, inflationary models were examined. The most important of scalar-tensor models is the Higgs model, which, depending on the values of the scalar field, can be approximated by different scalar potentials, one of which is the inflationary. Since it is not certain how large the values of the scalar field will be at the near vicinity and inside a neutron star, in this work we will answer the question, which potential form of the Higgs model is more appropriate in order for it to describe consistently a static neutron star. As we will show numerically, the non-inflationary Higgs potential, which is valid for certain values of the scalar field in the Jordan frame, leads to extremely large maximum neutron star masses; however, the model is not self-consistent, because the scalar field approximation used for the derivation of the potential, is violated both at the center and at the surface of the star. These results shows the uniqueness of the inflationary Higgs potential, since it is the only approximation for the Higgs model, that provides self-consistent results.

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23

DATTA, ALAKABHA, and XINMIN ZHANG. "VACUUM STABILITY IN SPLIT SUSY AND LITTLE HIGGS MODELS." International Journal of Modern Physics A 21, no. 11 (April 30, 2006): 2431–45. http://dx.doi.org/10.1142/s0217751x06029521.

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We study the stability of the effective Higgs potential in the split supersymmetry and Little Higgs models. In particular, we study the effects of higher dimensional operators in the effective potential on the Higgs mass predictions. We find that the size and sign of the higher dimensional operators can significantly change the Higgs mass required to maintain vacuum stability in Split SUSY models. In the Little Higgs models the effects of higher dimensional operators can be large because of a relatively lower cutoff scale. Working with a specific model we find that a contribution from the higher dimensional operator with coefficient of O(1) can destabilize the vacuum.

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24

Hosotani, Y., N. Maru, K. Takenaga, and T. Yamashita. "Two Loop Finiteness of Higgs Mass and Potential in the Gauge-Higgs Unification." Progress of Theoretical Physics 118, no. 6 (December 1, 2007): 1053–68. http://dx.doi.org/10.1143/ptp.118.1053.

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25

KRASNIKOV, N. V. "THE SEARCH FOR NONSTANDARD HIGGS BOSONS WITH BIG YUKAWA COUPLING CONSTANTS AT FNAL AND LHC." Modern Physics Letters A 10, no. 35 (November 20, 1995): 2675–85. http://dx.doi.org/10.1142/s0217732395002805.

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We discuss the phenomenology of many Higgs doublet model—the model where each Higgs doublet couples with its own quark and lepton with relatively big Yukawa coupling constants. Namely, we investigate the discovery potential of the Higgs bosons at LHC and find lower mass limits on nonstandard Higgs bosons from FNAL data. We find that it is possible to discover such Higgs bosons at LHC with the masses up to 5 TeV.

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26

ASATRIAN, H. M., and G. K. YEGHIYAN. "HIGGS BOSON MASSES IN NMSSM WITH SPONTANEOUS CP-VIOLATION." Modern Physics Letters A 11, no. 35 (November 20, 1996): 2771–85. http://dx.doi.org/10.1142/s0217732396002769.

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The Higgs boson mass problem is considered in the next-to-minimal supersymmetric standard model for the case of spontaneous CP-violation. The renormalization group equations for the gauge, Yukawa and scalar coupling constants, the effective Higgs potential and lower experimental bounds on Higgs boson and chargino masses are analyzed. The restrictions on the Higgs boson masses are found.

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27

Mondragón, A., M. Mondragón, and U. J. Saldaña Salazar. "On the Higgs potential in the MS3IESM." Journal of Physics: Conference Series 378 (August 10, 2012): 012027. http://dx.doi.org/10.1088/1742-6596/378/1/012027.

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28

Di Chiara, Stefano, Venus Keus, and Oleg Lebedev. "Stabilizing the Higgs potential with a Z′." Physics Letters B 744 (May 2015): 59–66. http://dx.doi.org/10.1016/j.physletb.2015.03.013.

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29

Cottingham, W. N., and N. Hasan. "Two-Higgs-doublet potential at finite temperature." Physical Review D 51, no. 2 (January 15, 1995): 866–78. http://dx.doi.org/10.1103/physrevd.51.866.

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30

Chen, Heng-Yu, and N. S. Manton. "The Kähler potential of Abelian Higgs vortices." Journal of Mathematical Physics 46, no. 5 (May 2005): 052305. http://dx.doi.org/10.1063/1.1874334.

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31

Mund, Jens, Karl-Henning Rehren, and Bert Schroer. "How the Higgs potential got its shape." Nuclear Physics B 987 (February 2023): 116109. http://dx.doi.org/10.1016/j.nuclphysb.2023.116109.

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32

Mantziris, Andreas, Tommi Markkanen, and Arttu Rajantie. "The effective Higgs potential and vacuum decay in Starobinsky inflation." Journal of Cosmology and Astroparticle Physics 2022, no. 10 (October 1, 2022): 073. http://dx.doi.org/10.1088/1475-7516/2022/10/073.

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Abstract Based on the current experimental data, the Standard Model predicts that the current vacuum state of the Universe is metastable, leading to a non-zero rate of vacuum decay through nucleation of bubbles of true vacuum. Our existence implies that there cannot have been any such bubble nucleation events anywhere in our whole past lightcone. We consider a minimal scenario of the Standard Model together with Starobinsky inflation, using three-loop renormalization group improved Higgs effective potential with one-loop curvature corrections. We show that the survival of the vacuum state through inflation places a lower bound ξ ≳ 0.1 on the non-minimal Higgs curvature coupling, the last unknown parameter of the Standard Model. This bound is significantly stronger than in single field inflation models with no Higgs-inflaton coupling. It is also sensitive to the details of the dynamics at the end of inflation, and therefore it can be improved with a more detailed study of that period.

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33

Asner, David. "Prospect for Discovering H0, A0 in Two-Photon Collisions at a Linear Collider." International Journal of Modern Physics A 18, no. 16 (June 30, 2003): 2893–902. http://dx.doi.org/10.1142/s0217751x03016355.

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We examine the potential for detecting and studying Higgs bosons in two-photon collisions at a future linear collider. Our study incorporates realistic two-photon spectra based on the most probable available laser technology. We study the cases of a) the heavy MSSM Higgs bosons and b) a Higgs boson with no WW/ZZ couplings from a general two Higgs doublet model.

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34

Almarashi, Mosleh M. "Review of a Light NMSSM Pseudoscalar Higgs-State Production at the LHC." Universe 7, no. 11 (October 20, 2021): 392. http://dx.doi.org/10.3390/universe7110392.

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In this paper, we briefly review the LHC discovery potential of a light pseudoscalar Higgs boson of the NMSSM, a1, produced in the gluon fusion gg→a1, bottom-quark fusion bb¯→a1 and bottom-gluon fusion bg→ba1. We also review the LHC discovery potential of the next-to-lightest CP-even Higgs boson h2 being the non-SM-like Higgs, decaying either into two light CP-odd Higgs bosons a1 or into a light a1 and the Z gauge boson through the gluon fusion gg→h2 in the 4τ final state. We find that the light a1 can be detected at the LHC in a variety of production processes including the gluon fusion, bottom-quark fusion and bottom-gluon fusion. The latter two processes require high luminosity of the LHC and large values of tanβ. We also find that the LHC has the potential to discover the non-SM-like Higgs state, h2, decaying into a pair of light CP-odd Higgses a1’s, allowing the distinguishing of the NMSSM Higgs sector from the MSSM one as such a light a1, is impossible in the latter scenario.

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35

Flacke, Thomas. "Searching for composite Higgs models at the LHC." International Journal of Modern Physics A 31, no. 19 (July 7, 2016): 1630026. http://dx.doi.org/10.1142/s0217751x1630026x.

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Composite Higgs models have the potential to provide a solution to the hierarchy problem and a dynamical explanation for the generation of the Higgs potential. They can be tested at the LHC as the new sector which underlies electroweak symmetry breaking must become strong in the TeV regime, which implies additional bound states beyond the Higgs. In this paper, we first discuss prospects and search strategies for top partners (and other quark partners) in the strongly coupled sector, which we study in an effective field theory setup. In the second part of the proceedings, we go beyond the effective field theory approach. We discuss potential UV embeddings for composite Higgs models which contain a Higgs as well as top partners. We show that in all of these models, additional pseudo-Nambu–Goldstone bosons beyond the Higgs are present. In particular, all of the models contain a pseudoscalar which couples to the Standard Model gauge fields through Wess–Zumino–Witten terms, providing a prime candidate for a di-boson (including a di-photon) resonance. The models also contain colored pNGBs which can be searched for at the LHC.

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36

KOCA, MEHMET, RAMAZAN KOÇ, and HAYRIYE TÜTÜNCÜLER. "EXPLICIT BREAKING OF SO(3) WITH HIGGS FIELDS IN THE REPRESENTATIONS ℓ = 2 AND ℓ = 3." International Journal of Modern Physics A 18, no. 26 (October 20, 2003): 4817–27. http://dx.doi.org/10.1142/s0217751x03015891.

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A gauged SO(3) symmetry is broken into its little groups of the representations ℓ = 2 and ℓ = 3. Explicit Higgs potentials leading to the spontaneous symmetry breaking are constructed. The masses of the gauge bosons and Higgs particles are calculated in terms of the renormalizable potentials. Emergence of Goldstone bosons arising from the absence of certain potential terms is also discussed. Analogous structures between the cosmic strings and disclinations of liquid crystals are noted.

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37

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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38

Ahmed, Ijaz, Ujala Nawaz, Taimoor Khurshid, and Shamona Fawad Qazi. "Probing Triple Higgs Self-Coupling and Effect of Beam Polarization in Lepton Colliders." Advances in High Energy Physics 2022 (July 6, 2022): 1–20. http://dx.doi.org/10.1155/2022/9735729.

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One of the main objectives of almost all future (lepton) colliders is to measure the self-coupling of triple Higgs in the Standard Model. By elongating the Standard Model’s scalar sector, using incipient Higgs doublet along with a quadratic (Higgs) potential can reveal many incipient features of the model and the possibility of the emergence of additional Higgs self-couplings. The self-coupling of the Higgs boson helps in reconstructing the scalar potential. The main objective of this paper is to extract Higgs self-coupling by numerically analyzing several scattering processes governed by two Higgs doublet models (2HDM). These scattering processes include various possible combinations of final states in the triple Higgs sector. The determination of production cross-section of scattering processes is carried out using two different scenarios, one with and other without polarization of incoming beam, and is extended to a center of mass energy up to s = 3 TeV . The computation is carried out in type-1 2HDM. Here, we consider the case of exact alignment limit ( s β α =1) and masses of extra Higgs states are equal, that is, m H = m H 0 = m A 0 = m H ± . This choice minimizes the oblique parameters. The decays of the final state of each process are investigated to estimate the number of events at an integrated luminosity of 1 a b − 1 and 3 a b − 1 .

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39

SZLEPER, MICHAŁ. "SEARCH FOR THE NMSSM HIGGS BOSONS AT THE PHOTON COLLIDER." International Journal of Modern Physics A 20, no. 31 (December 20, 2005): 7404–11. http://dx.doi.org/10.1142/s0217751x05031216.

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A light, Standard Model-like Higgs scalar in the NMSSM will decay predominantly into a pair of Higgs pseudoscalars, these decaying into a four-fermion final state. We study the potential of the CLIC Higgs Experiment to detect such scenario via the search for the final states [Formula: see text] and [Formula: see text]. We find excellent prospects for the observation of the Higgs peak in both channels.

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40

Guchait, Monoranjan, and Jacky Kumar. "Light Higgs bosons in NMSSM at the LHC." International Journal of Modern Physics A 31, no. 12 (April 28, 2016): 1650069. http://dx.doi.org/10.1142/s0217751x1650069x.

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The next-to-minimal supersymmetric Standard Model (NMSSM) with an extended Higgs sector offers at least one Higgs boson as the Standard Model (SM)-like Higgs with a mass around 125 GeV. In this work, we revisit the mass spectrum and couplings of non-SM-like Higgs bosons taking into consideration most relevant constraints and identify the relevant parameter space. The discovery potential of these non-SM-like Higgs bosons, apart from their masses, is guided by their couplings with gauge bosons and fermions which are very much parameter space sensitive. We evaluate the rates of productions of these non-SM-like Higgs bosons at the LHC for a variety of decay channels in the allowed region of the parameter space. Although [Formula: see text], [Formula: see text] modes appear to be the most promising decay channels, but for a substantial region of parameter space the two-photon decay mode has a remarkably large rate. In this study we emphasize that this diphoton mode can be exploited to find the non-SM-like Higgs bosons of the NMSSM and can also be a potential avenue to distinguish the NMSSM from the MSSM. In addition, we discuss briefly the various detectable signals of these non-SM Higgs bosons at the LHC.

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LA, HOSEONG. "VORTEX SOLUTION IN A MULTI-HIGGS SYSTEM AND ITS PHYSICAL IMPLICATION." Modern Physics Letters A 08, no. 28 (September 14, 1993): 2649–55. http://dx.doi.org/10.1142/s0217732393003032.

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Classical vortex solutions in (1 + 2)-dimensional multi-Higgs systems are studied. In particular the existence of such a solution requires equal characteristic lengths and a specific relation between the ratio of the two Higgs vacuum expectation values and the couplings in the Higgs potential, if λ3 ≠ 0.

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KOIDE, YOSHIO. "CHARGED LEPTON MASS SUM RULE FROM U(3)-FAMILY HIGGS POTENTIAL MODEL." Modern Physics Letters A 05, no. 28 (November 10, 1990): 2319–23. http://dx.doi.org/10.1142/s0217732390002663.

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It is pointed out that if we assume U(3)-family nonet Higgs scalars which couple to charged leptons bilinearly, a simple Higgs potential with a term which breaks the U(3)-family into SU(3)-family will lead to a mass sum rule, [Formula: see text]. This sum rule is in excellent agreement with experiment. The sum rule is also in good agreement with experiment when applied to the masses of down-quarks, d, s, and b.

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Dubinin, M. N., and E. Yu Petrova. "Scenarios with low mass Higgs bosons in the heavy supersymmetry." International Journal of Modern Physics A 33, no. 25 (September 10, 2018): 1850150. http://dx.doi.org/10.1142/s0217751x18501506.

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Possible realistic scenarios are investigated in the minimal supersymmetric standard model (MSSM) Higgs sector extended by dimension-six effective operators. The CP-odd Higgs boson with low mass around 30–90 GeV could be consistently introduced in the regime of large threshold corrections to the effective MSSM two-doublet Higgs potential.

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TYE, S. H. HENRY, and YAN VTOROV-KAREVSKY. "EFFECTIVE ACTION OF SPONTANEOUSLY BROKEN GAUGE THEORIES." International Journal of Modern Physics A 13, no. 01 (January 10, 1998): 95–124. http://dx.doi.org/10.1142/s0217751x98000032.

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The effective action of a Higgs theory should be gauge-invariant. However, the quantum and/or thermal contributions to the effective potential seem to be gauge-dependent, posing a problem for its physical interpretation. In this paper, we identify the source of the problem and argue that in a Higgs theory perturbative contributions should be evaluated with the Higgs fields in the polar basis, not in the Cartesian basis. Formally, this observation can be made from the derivation of the Higgs theorem, which we provide. We show explicitly that, properly defined, the effective action for the Abelian Higgs theory is gauge-invariant to all orders in perturbation expansion when evaluated in the covariant gauge in the polar basis. In particular, the effective potential is gauge-invariant. We also show the equivalence between the calculations in the covariant gauge in the polar basis and the unitary gauge. These points are illustrated explicitly with the one-loop calculations of the effective action. With a field redefinition, we obtain the physical effective potential. The SU(2) non-Abelian case is also discussed.

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45

Zhang, Xinmin. "Operator analysis for the Higgs potential and cosmological bound on the Higgs-boson mass." Physical Review D 47, no. 7 (April 1, 1993): 3065–67. http://dx.doi.org/10.1103/physrevd.47.3065.

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Wetterich, Christof. "Effective Scalar Potential in Asymptotically Safe Quantum Gravity." Universe 7, no. 2 (February 17, 2021): 45. http://dx.doi.org/10.3390/universe7020045.

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We compute the effective potential for scalar fields in asymptotically safe quantum gravity. A scaling potential and other scaling functions generalize the fixed point values of renormalizable couplings. The scaling potential takes a non-polynomial form, approaching typically a constant for large values of scalar fields. Spontaneous symmetry breaking may be induced by non-vanishing gauge couplings. We strengthen the arguments for a prediction of the ratio between the masses of the top quark and the Higgs boson. Higgs inflation in the standard model is unlikely to be compatible with asymptotic safety. Scaling solutions with vanishing relevant parameters can be sufficient for a realistic description of particle physics and cosmology, leading to an asymptotically vanishing “cosmological constant” or dynamical dark energy.

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ASATRIAN, H. M., and G. K. EGUIAN. "HIGGS BOSON MASSES IN NONMINIMAL SUPERSYMMETRY." Modern Physics Letters A 10, no. 38 (December 14, 1995): 2943–54. http://dx.doi.org/10.1142/s0217732395003082.

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The Higgs boson mass problem is considered in the next-to-minimal supersymmetric standard model. The Higgs potential and the renormalization group equations for the gauge, Yukawa and scalar coupling constants are analyzed. The restrictions on the Higgs boson masses are found for the cases of presence and absence of spontaneous CP-violation.

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DÍAZ-CRUZ, J. L., O. FÉLIX-BELTRÁN, A. ROSADO, and S. ROSADO-NAVARRO. "ELECTROWEAK RIGHT-HANDED NEUTRINOS AND NEW HIGGS SIGNALS AT THE LHC." International Journal of Modern Physics A 26, no. 17 (July 10, 2011): 2865–80. http://dx.doi.org/10.1142/s0217751x11053675.

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We explore some aspects of the phenomenology of the Higgs sector in a model that includes right-handed neutrinos, with a mass of the order of the electroweak scale. In this model all scales arise from spontaneous symmetry breaking, thus the Higgs sector includes an extra Higgs singlet, in addition to the Standard Model Higgs doublet. The scalar spectrum includes two neutral CP-even states (h and H, with mh < mH) and a neutral CP-odd state (σ) that can be identified as a pseudo-Majoron. The parameter of the Higgs potential are constrained using a perturbativity criteria, which amounts to solve the corresponding RGE. The relevant Higgs branching ratios and some cross-sections are discussed, with special emphasis on the detection of the invisible Higgs signal at the LHC.

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Grojean, C. "Beyond the standard Higgs after the 125 GeV Higgs discovery." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373, no. 2032 (January 13, 2015): 20140042. http://dx.doi.org/10.1098/rsta.2014.0042.

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An elementary, weakly coupled and solitary Higgs boson allows one to extend the validity of the Standard Model up to very high energy, maybe as high as the Planck scale. Nonetheless, this scenario fails to fill the universe with dark matter and does not explain the matter–antimatter asymmetry. However, amending the Standard Model tends to destabilize the weak scale by large quantum corrections to the Higgs potential. New degrees of freedom, new forces, new organizing principles are required to provide a consistent and natural description of physics beyond the standard Higgs.

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Oda, Ichiro. "Higgs potential from Wick rotation in conformal BSM." Modern Physics Letters A 34, no. 31 (October 7, 2019): 1950257. http://dx.doi.org/10.1142/s0217732319502572.

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It is well known that in order to make the path integral of general relativity converge, one has to perform the Wick rotation over the conformal factor in addition to the more familiar Wick rotation of the time axis to pass to the spacetime with Euclidean signature. In this paper, we will apply this technique to a scalar field in the conformally invariant scalar–tensor gravity with a conformally invariant beyond-standard-model (BSM). It is then shown that a potential term in the conformally invariant potential, which corresponds to the Higgs mass term in the Higgs potential of the Standard Model (SM), can have a negative coefficient. The change of sign of the potential term naturally induces spontaneous symmetry breakdown of the electroweak gauge symmetry after symmetry breaking of conformal symmetry (local scale symmetry) via the Coleman–Weinberg mechanism around the Planck scale. This study might shed light on the fact that the existence of a stable vacuum in quantum gravity is relevant to that in the SM.

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