A HANDY CALCULATING METHOD OF HIGGS POTENTIAL IN SUSY MODEL

1993 ◽  
Vol 08 (29) ◽  
pp. 2729-2736 ◽  
Author(s):  
MASAKO BANDO ◽  
NOBUHIRO MAEKAWA ◽  
HIROAKI NAKANO ◽  
JOE SATO
Keyword(s):  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Simple Approximation ◽  
Higgs Potential ◽  
Calculating Method ◽  
The One ◽  
Susy Model

We examine a simple approximation to the one-loop Higgs potential in the supersymmetric standard model. We study the conditions under which our approximation can well simulate the full one-loop results. The results by our method are compared with those by the full one-loop potential as well as the tree one in several examples. It turns out that our method works quite well in many cases and thus provides a useful calculating method, instead of a complicated evaluation of one-loop potential.

scholarly journals MORE ABOUT ELECTROWEAK BARYOGENESIS IN THE MINIMAL SUPERSYMMETRIC STANDARD MODEL

1998 ◽  
Vol 07 (05) ◽  
pp. 815-823 ◽  
Author(s):  
ANTONIO RIOTTO
Keyword(s):  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Minimal Supersymmetric Standard Model ◽  
Higgs Sector ◽  
Baryon Asymmetry ◽  
Electroweak Phase Transition ◽  
The One ◽  
Scalar Sector ◽  
Higgs Scalar ◽  
Made In

We compute the baryon asymmetry generated at the electroweak phase transition by the Higgs scalar sector of the minimal supersymmetric standard model. Because of large enhancement effects from low momentum modes, Higgs particles may be responsible for the observed baryon asymmetry even though CP-violation in the Higgs sector only appears at the one-loop level. We also discuss the approximations made in the analysis and suggest possible improvements.

scholarly journals A hint of a strong supersymmetric standard model

2014 ◽  
Vol 29 (31) ◽  
pp. 1450192
Author(s):  
Renata Jora ◽  
Joseph Schechter
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Symmetry Breaking ◽  
Supersymmetric Standard Model ◽  
Alternative Model ◽  
Bound States ◽  
Dynamical Symmetry ◽  
Higgs Potential ◽  
Dynamical Symmetry Breaking ◽  
Neutral Scalar

We discuss the supersymmetric standard model from the perspective that the up and down Higgs supermultiplets are composite states. We show that a Higgs multiplet in which the scalar states are bound states of two squarks and the corresponding Higgsinos are bound states of a quark and a squark has the correct supersymmetry transformations and may lead to an alternative model which contains additional effective operators and which displays dynamical symmetry breaking. We describe this model through an effective Higgs potential which by itself may lead to the correct mass of 125.9 GeV for the lightest Higgs boson and to other neutral scalar masses respecting the experimental constraints.

scholarly journals MINIMIZATION OF THE SCALAR HIGGS POTENTIAL IN THE FINITE SUPERSYMMETRIC GRAND UNIFIED THEORY

1996 ◽  
Vol 11 (05) ◽  
pp. 989-1006 ◽  
Author(s):  
I.N. KONDRASHUK
Keyword(s):  
Standard Model ◽  
Symmetry Breaking ◽  
Supersymmetric Standard Model ◽  
Electroweak Symmetry Breaking ◽  
Higgs Potential ◽  
Unified Theory ◽  
Grand Unified Theory ◽  
Electroweak Symmetry ◽  
Mathematical Solution ◽  
Simple Generalization

An exact mathematical solution of the minimization conditions of the scalar Higgs potential of the finite supersymmetric grand unified theory is proposed and extremal field configurations are found. Types of extrema are investigated and masses of the new Higgs particles arising after electroweak symmetry breaking are derived analytically. The conditions for the existence of a physically acceptable minimum are given. As it appears, this minimum is a simple generalization of the analogous solution in the minimal supersymmetric standard model. Phenomenological consequences are discussed briefly.

Minimization of the Scalar Potential in Softly Broken SU(2)×U(1)N=1 SYM with Higgs Matter

1997 ◽  
Vol 12 (04) ◽  
pp. 257-264
Author(s):  
I. N. Kondrashuk
Keyword(s):  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Arbitrary Number ◽  
Scalar Potential ◽  
Low Energy ◽  
Grand Unification ◽  
Higgs Potential ◽  
Grand Unification Theory ◽  
Unification Theory ◽  
Simple Analog

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.

scholarly journals The analytical one-loop contributions to Higgs boson mass in the Supersymmetric Standard Model with vector-like particles

2017 ◽  
Vol 32 (33) ◽  
pp. 1745002
Author(s):  
Tianjun Li ◽  
Wenyu Wang ◽  
Xiao-Chuan Wang ◽  
Zhao-Hua Xiong
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Higgs Mass ◽  
Energy Scale ◽  
Boson Mass ◽  
Higgs Boson Mass ◽  
Feynman Rules ◽  
The One ◽  
Bilinear Terms

In this paper, we extend the Minimal Supersymmetric Standard Model (MSSM) with additional vector-like particles (VLPs) and compared the differences of mass spectrum and Feynman rules between the MSSM and MSSMV. We analytically calculate the one loop contributions to the Higgs boson mass from the fermions and sfermions in the on shell renormalization scheme. After discussing and numerically analyzing cases without bilinear terms and a case with a (partial) decoupling limit, we find: (i) the corrections depend on the mass splittings between quarks and squarks and between vector-like fermions and their sfermions; (ii) there exists the (partial) decoupling limit, where the VLPs decouple from the electroweak (EW) energy scale, even when one of the VLPs is light around the EW scale. The reason is that the contributions to Higgs mass can be suppressed by the (or partial) decoupling effects, which can make the EW phenomenology different from the MSSM. Moreover, we present some numerical analysis to understand these unique features.

scholarly journals Scenarios with low mass Higgs bosons in the heavy supersymmetry

2018 ◽  
Vol 33 (25) ◽  
pp. 1850150 ◽  
Author(s):  
M. N. Dubinin ◽  
E. Yu. Petrova
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Minimal Supersymmetric Standard Model ◽  
Higgs Sector ◽  
Higgs Bosons ◽  
Higgs Potential ◽  
Low Mass ◽  
Effective Operators

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.

scholarly journals One-loop correction to Z → νν in the minimal R-symmetric supersymmetric Standard Model

2019 ◽  
Vol 34 (07n08) ◽  
pp. 1950058 ◽  
Author(s):  
Ke-Sheng Sun ◽  
Jian-Bin Chen ◽  
Xiu-Yi Yang ◽  
Hai-Bin Zhang
Keyword(s):  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Neutrino Mass ◽  
Mass Formula ◽  
Branching Ratio ◽  
Loop Correction ◽  
Mass Matrices ◽  
The One ◽  
Peak Value ◽  
Slepton Mass

We analyze the one-loop correction to [Formula: see text] decay in framework of Minimal R-symmetric Supersymmetric Standard Model (MRSSM) in detail with normal and inverse neutrino mass orderings, as a function of [Formula: see text], Dirac mass parameters [Formula: see text] and [Formula: see text], slepton mass [Formula: see text] that parametrize the mass matrices. The numerical results indicate that the branching ratio for [Formula: see text] decay is compatible with the experimental measurement and the SM expectation at [Formula: see text] level. For inverse neutrino mass ordering, the prediction exceeds the SM expectation at [Formula: see text] level. The prediction on [Formula: see text] increases proportionally to [Formula: see text] and inversely proportionally to [Formula: see text]. For normal neutrino mass ordering, the peak value of the prediction on [Formula: see text] exceeds the SM expectation at [Formula: see text] level.

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