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We predict an unconventional background free signal of the Higgs boson in $R$-parity violating nonminimal supersymmetric models at the Large Hadron Collider (LHC). The signal comprises dilepton plus four hadronic jets and two large…

High Energy Physics - Phenomenology · Physics 2011-12-30 Priyotosh Bandyopadhyay , Pradipta Ghosh , Sourov Roy

Several extensions of the Standard Model have light doubly-charged Higgs bosons in their particle spectrum. The supersymmetric versions of these models introduce fermionic superpartners of these doubly-charged Higgs bosons, the Higgsinos,…

High Energy Physics - Phenomenology · Physics 2013-09-11 K. S. Babu , Ayon Patra , Santosh Kumar Rai

We discuss the production and two-photon decay of the lightest Higgs boson (h) of the minimal supersymmetric standard model at the CERN Large Hadron Collider. Since the observability of the signal is quite model dependent, we conduct a…

High Energy Physics - Phenomenology · Physics 2014-11-17 G. L. Kane , Graham D. Kribs , Stephen P. Martin , James D. Wells

The hMSSM is a special parameterization of the minimal supersymmetric extension of the Standard Model (MSSM) in which the mass of the lightest Higgs boson is automatically set to the LHC measured value, $M_h\!\!=\!\! 125$\,GeV, by adjusting…

High Energy Physics - Phenomenology · Physics 2023-05-31 Giorgio Arcadi , Abdelhak Djouadi , Hong-Jian He , Jean-Loic Kneur , Rui-Qing Xiao

We interpret the potential observation of the 750 GeV di-photon resonance at the LHC in models, in which an $SU(2)$ isospin-singlet scalar boson mixes with the Standard Model (SM) Higgs boson through an angle $\alpha$. Allowing the singlet…

High Energy Physics - Phenomenology · Physics 2016-08-31 Kingman Cheung , P. Ko , Jae Sik Lee , Jubin Park , Po-Yan Tseng

We study the mass spectra, production and decay properties of the lightest supersymmetric CP-even and CP-odd Higgs bosons in models with spontaneously broken R-parity (SBRP). We compare the resulting mass spectra with expectations of the…

High Energy Physics - Phenomenology · Physics 2009-06-25 M. Hirsch , J. C. Romao , J. W. F. Valle , A. Villanova del Moral

We consider supersymmetric models that include particles beyond the Minimal Supersymmetric Standard Model (MSSM) with masses in the TeV range, and that couple significantly to the MSSM Higgs sector. We perform a model-independent analysis…

High Energy Physics - Phenomenology · Physics 2010-01-15 Marcela Carena , Kyoungchul Kong , Eduardo Ponton , Jose Zurita

This study investigates the Higgs rare decays $h^0\rightarrow Z\gamma,V Z$ within the next to minimum B-L supersymmetric model(NB-LSSM), where $V$ represents a vector meson $(\phi,J/\psi,\Upsilon(1S),\rho^0,\omega)$. Compared to the minimal…

High Energy Physics - Phenomenology · Physics 2026-02-11 Xing-Xing Dong , Cai Guo , Wen Lu , Shu-Min Zhao , Tai-Fu Feng

We discuss the physical implications of formulating the Standard Model (SM) in terms of the superconnection formalism involving the superalgebra su(2/1). In particular, we discuss the prediction of the Higgs mass according to the formalism…

High Energy Physics - Phenomenology · Physics 2015-03-11 Ufuk Aydemir , Djordje Minic , Chen Sun , Tatsu Takeuchi

The mass of the Standard Model (SM) Higgs boson was constrained by the Large Electron-Positron (LEP) collider to be above 114.4 GeV. Simple extensions of the scalar sector like adding singlets and/or doublets allow the lightest Higgs to be…

High Energy Physics - Phenomenology · Physics 2010-11-19 Alexander Belyaev , Renato Guedes , Stefano Moretti , Rui Santos

After the discovery of the Higgs boson with mass at approximately 125 $GeV$ at the LHC, many studies both from the theoretical and experimental sides have been performed to search for a new Higgs Boson lighter than the 125 $GeV$ Higgs…

High Energy Physics - Phenomenology · Physics 2018-10-02 Junquan Tao , M. Aamir Shahzad , Sijing Zhang , Chu Wang , Yuqiao Shen , Guoming Chen , Hesheng Chen , S. Gascon-Shotkin , M. Lethuillier , L. Finco , C. Camen

The Next-to-Minimal Supersymmetric Standard Model (NMSSM), the singlet extension of the MSSM which fixes many of the MSSM's shortcomings, is shown to be within reach of the upcoming runs of the Large Hadron Collider (LHC). A systematic…

High Energy Physics - Phenomenology · Physics 2019-04-08 Sebastian Baum , Nausheen R. Shah , Katherine Freese

Observing a heavy charged Higgs boson produced in the near future at the Tevatron or at the LHC would be instant evidence of physics beyond the Standard Model. Whether such a Higgs boson would be supersymmetric or not it could only be…

High Energy Physics - Phenomenology · Physics 2010-01-28 J. A. Coarasa , David Garcia , Jaume Guasch , Ricardo A. Jimenez , Joan Sola

We calculate the decay rate of scalar and pseudoscalar Higgs bosons into a pair of gluinos, within the Minimal Supersymmetric Standard Model. In the theoretically and experimentally allowed light gluino window, $\mg \sim $ 3--5 GeV, gluino…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Djouadi , M. Drees

A search for neutral Higgs bosons in the minimal supersymmetric extension of the Standard Model (MSSM) decaying to a pair of b quarks or a pair of tau leptons, using events recorded by the CMS experiment at the LHC in 2011 and 2012 at the…

High Energy Physics - Experiment · Physics 2019-08-13 Aruna Kumar Nayak

We study the implications of the LHC Higgs signals on the Higgs mixing in the next-to-minimal supersymmetric standard model (NMSSM). The Higgs couplings can depart from their values in the standard model (SM) due to mixing effects. However…

High Energy Physics - Phenomenology · Physics 2015-06-12 Kiwoon Choi , Sang Hui Im , Kwang Sik Jeong , Masahiro Yamaguchi

We study the Higgs-boson mass spectrum of a classical scale-invariant realization of the two-Higgs-doublet model (SI-2HDM). The classical scale symmetry of the theory is explicitly broken by quantum loop effects due to gauge interactions,…

High Energy Physics - Phenomenology · Physics 2015-06-03 Jae Sik Lee , Apostolos Pilaftsis

We show that the low energy limit of the minimal supersymmetric Left-Right models is the supersymmetric standard model with an exact R-parity. The theory predicts a number of light Higgs scalars and fermions with masses much below the $B-L$…

High Energy Physics - Phenomenology · Physics 2011-02-09 Charanjit S. Aulakh , Alejandra Melfo , Andrija Rasin , Goran Senjanovic

In the Minimal Supersymmetric Model (MSSM) and the Next to Minimal Supersymmetric Model [(M+1)SSM], an upper bound on the lightest higgs mass can be calculated. On the other hand, vacuum stability implies a lower limit on the mass of the…

High Energy Physics - Phenomenology · Physics 2009-10-28 Marco A. Diaz , Tonnis A. ter Veldhuis , Thomas J. Weiler

Within the left-right symmetric model (LRM) the decays $$S_1\to\mu^++\tau^-,\qquad S_1\to\mu^-+\tau^+$$ where $S_1$ is an analog of the standard model Higgs boson, are considered. The widths of this decays are found in the third order of…

High Energy Physics - Phenomenology · Physics 2019-02-13 O. M. Boyarkin , G. G. Boyarkina , D. S. Vasileuskaya