Academic literature on the topic 'Higgs models'

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Journal articles on the topic "Higgs models"

1

Ivanov, I. P. "Higgs models." Physics of Particles and Nuclei Letters 9, no. 9-10 (2012): 657–65. http://dx.doi.org/10.1134/s1547477112070072.

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2

Shrock, Robert E. "Lattice Higgs models." Nuclear Physics B - Proceedings Supplements 4 (April 1988): 373–89. http://dx.doi.org/10.1016/0920-5632(88)90127-2.

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3

DREES, MANUEL. "SUPERSYMMETRIC MODELS WITH EXTENDED HIGGS SECTOR." International Journal of Modern Physics A 04, no. 14 (1989): 3635–51. http://dx.doi.org/10.1142/s0217751x89001448.

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The Higgs sector of supersymmetric models with an additional SU (2)× U (1)Y singlet or an additional pair of Higgs doublet superfields is investigated. It is shown that in the model with a Higgs singlet bounds on Higgs boson masses are considerably weaker than in the minimal supersymmetric model; in particular, all neutral scalars can be heavier than about 150 GeV or lighter than [Formula: see text], whereas the mass of the charged Higgs boson is essentially unconstrained. The four doublet model resembles the minimal model more closely; in particular, the bounds for the heaviest and lightest neutral scalar and the heaviest charged Higgs boson are unaltered. In this model, many relations between masses of different Higgs bosons can be found; 44 of the 66 possible decays of one Higgs boson into another Higgs boson plus a real W or Z boson are kinematically forbidden. It is also shown that in both models, the lightest neutral scalar becomes indistinguishable from the standard model Higgs boson if all other Higgs bosons of the model are much heavier than Mw.
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4

ANDRIANOV, A. A., V. A. ANDRIANOV, V. L. YUDICHEV, and R. RODENBERG. "COMPOSITE TWO-HIGGS MODELS (GENERAL PART)." International Journal of Modern Physics A 14, no. 03 (1999): 323–58. http://dx.doi.org/10.1142/s0217751x99000178.

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Quark models with four-fermion interaction including derivatives of fields in the strong coupling regime are used to implement composite-Higgs extensions of the Standard Model. In this approach the dynamical breaking of chiral symmetry occurs in two (or more) channels (near polycritical values for coupling constants), giving rise to two (or more) composite Higgs doublets. Two types of models are built for which Flavor Changing Neutral Currents (FCNC) are naturally suppressed. In the first Model I the second Higgs doublet is regarded as a radial excitation of the first one. In the second Model II the quasilocal Yukawa interaction with Higgs doublets reduces at low energies to a conventional local one where each Higgs doublet couples to a definite charge current and its v.e.v. brings the mass either to up- or to down-components of fermion doublets. For the special configuration of four-fermion coupling constants the dynamical CP violation in the Higgs sector appears as a result of complexity of v.e.v. for Higgs doublets.
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5

Aoki, Mayumi, Shinya Kanemura, and Osamu Seto. "Higgs decay in Higgs portal dark matter models." Journal of Physics: Conference Series 315 (August 19, 2011): 012024. http://dx.doi.org/10.1088/1742-6596/315/1/012024.

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6

Sanz, Veronica, and Jack Setford. "Composite Higgs Models after Run 2." Advances in High Energy Physics 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/7168480.

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We assess the status of models in which Higgs is a composite pseudo-Nambu Goldstone boson, in the light of the latest 13 TeV Run 2 Higgs data. Drawing from the extensive Composite Higgs literature, we collect together predictions for the modified couplings of Higgs, in particular examining the different predictions for κV and κF. Despite the variety and increasing complexity of models on the market, we point out that many independent models make identical predictions for these couplings. We then look into further corrections induced by tree-level effects such as mass-mixing and singlet VEVs. We then investigate the compatibility of different models with the data, combining Run 1 and recent Run 2 LHC data. We obtain a robust limit on the scale f of 600 GeV, with stronger limits for different choices of fermion embeddings. We also discuss how a deficit in a Higgs channel could pinpoint the type of Composite Higgs model responsible for it.
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7

Masip, M. "The light Higgs in supersymmetric models with Higgs triplets." Physics Letters B 444, no. 3-4 (1998): 352–57. http://dx.doi.org/10.1016/s0370-2693(98)01388-4.

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8

Marek-Crnjac, L. "Different Higgs models and the number of Higgs particles." Chaos, Solitons & Fractals 27, no. 3 (2006): 575–79. http://dx.doi.org/10.1016/j.chaos.2005.04.099.

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9

DATTA, ALAKABHA, and XINMIN ZHANG. "VACUUM STABILITY IN SPLIT SUSY AND LITTLE HIGGS MODELS." International Journal of Modern Physics A 21, no. 11 (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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10

LAVOURA, L. "MODELS OF CP VIOLATION EXCLUSIVELY VIA NEUTRAL-SCALAR EXCHANGE." International Journal of Modern Physics A 09, no. 11 (1994): 1873–88. http://dx.doi.org/10.1142/s0217751x94000807.

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I suggest a two-Higgs-doublet model in which CP violation is mediated only by the neutral Higgs bosons, via the mechanism of scalar-pseudoscalar mixing. In this model there is no CP violation in the exchange of either W bosons or charged Higgs bosons. The model has only two basic CP-violating quantities. I remark that other models of this kind, but with more than two Higgs doublets, may also be built.
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