RG-IMPROVED BOUNDS ON HIGGS BOSON AND TOP QUARK MASSES FROM ELECTROWEAK BARYOGENESIS

1994 ◽  
Vol 09 (05) ◽  
pp. 459-464 ◽  
Author(s):  
A.S. MAJUMDAR ◽  
S.K. SETHI ◽  
S. MAHAJAN ◽  
A. MUKHERJEE ◽  
N. PANCHAPAKESAN ◽  
...  
Keyword(s):  
Renormalization Group ◽  
Higgs Boson ◽  
Top Quark ◽  
Quark Mass ◽  
Higgs Mass ◽  
Higgs Doublet ◽  
Baryon Asymmetry ◽  
Top Quark Mass ◽  
Quark Masses ◽  
Doublet Model

Electroweak baryogenesis in a single Higgs doublet model is considered. A renormalization group-improved effective potential is used. The requirement that the created baryon asymmetry is not washed out leads to bounds on the Higgs mass which vary significantly with the top quark mass.

scholarly journals CONSTRAINTS ON THE CHARGED HIGGS BOSON OF THE TWO-HIGGS DOUBLET MODEL TYPE III

2011 ◽  
Vol 26 (25) ◽  
pp. 1869-1879 ◽  
Author(s):  
H. CARDENAS ◽  
J. DUARTE ◽  
J. ALEXIS RODRIGUEZ
Keyword(s):  
Higgs Boson ◽  
Top Quark ◽  
Higgs Mass ◽  
Higgs Doublet ◽  
Charged Higgs Boson ◽  
Top Quark Mass ◽  
Type Iii ◽  
Charged Higgs ◽  
Doublet Model ◽  
Two Higgs Doublet Model

The D0 experiment has reported a direct search for a charged Higgs boson produced by [Formula: see text] annihilation and decaying to [Formula: see text] final state, in the 180≤MH+≤300 GeV mass range. The analysis has led to upper limits on the production cross-section in the framework of the two-Higgs doublet model types I, II and III. We compare the predictions of two different scenarios in the framework of the two-Higgs doublet type III to the cross-section limits reported by D0 collaboration, and we obtain constraints on the charged Higgs mass, for the case when the charged Higgs mass is bigger than the top quark mass. Also, searches for the charged Higgs boson with a mass smaller than top quark mass are considered, we discuss the possible limits on the charged Higgs boson mass obtained from measurements of the ratio [Formula: see text] within the two-Higgs doublet model type III.

$B^0 - \bar B^0 $ MIXING IN A SUPERSYMMETRY-INSPIRED TWO HIGGS DOUBLET MODEL

1988 ◽  
Vol 03 (11) ◽  
pp. 1099-1105 ◽  
Author(s):  
AMITAVA RAYCHAUDHURI ◽  
SREERUP RAYCHAUDHURI
Keyword(s):  
Top Quark ◽  
Quark Mass ◽  
Higgs Mass ◽  
Vacuum Expectation ◽  
Higgs Doublet ◽  
Top Quark Mass ◽  
Expectation Values ◽  
Charged Higgs ◽  
Doublet Model ◽  
Two Higgs Doublet Model

A supersymmetry-motivated two Higgs doublet model with equal vacuum expectation values for the two neutral Higgs and with a physical charged Higgs mass of 80–100 GeV is carefully examined in the context of its implications for [Formula: see text] mixing. Even with this conservative choice of Higgs parameters, the lower bound on the top quark mass coming from the ARGUS data is found to be considerably relaxed. An upper bound is also set, using results from CLEO and Mark II.

scholarly journals LIMIT ON THE COLOR-TRIPLET HIGGS MASS IN THE MINIMUM SUPERSYMMETRIC SU(5) MODEL

1995 ◽  
Vol 10 (30) ◽  
pp. 2267-2278 ◽  
Author(s):  
J. HISANO ◽  
T. MOROI ◽  
K. TOBE ◽  
T. YANAGIDA
Keyword(s):  
Renormalization Group ◽  
Lower Limit ◽  
Top Quark ◽  
Quark Mass ◽  
Higgs Mass ◽  
Group Analysis ◽  
Proton Decay ◽  
Top Quark Mass ◽  
Renormalization Group Analysis ◽  
Upper Limit

In the minimum supersymmetric SU(5) GUT, we derive the upper limit on the mass of the color-triplet Higgs multiplets as [Formula: see text] (90% C.L.) taking all possible corrections into account in a renormalization group analysis. If the above upper limit is compared with a lower limit on [Formula: see text] from the negative search for the proton decay; [Formula: see text] (in which effects of the larger top-quark mass are included), the minimum supersymmetric SU(5) GUT is severely constrained.

NEW BOUNDS ON THE HIGGS SECTOR OF MINIMAL SUSY

1990 ◽  
Vol 05 (16) ◽  
pp. 1259-1264 ◽  
Author(s):  
JORGE L. LOPEZ ◽  
D.V. NANOPOULOS
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Top Quark ◽  
Quark Mass ◽  
Higgs Mass ◽  
Higgs Sector ◽  
Boson Mass ◽  
Top Quark Mass ◽  
Supersymmetric Extension ◽  
The Standard Model

We examine the Higgs sector of the minimal supersymmetric extension of the standard model. The requirement of perturbative unification combined with the recent LEP data on Higgs boson searches, excludes substantial regions of parameter space. We find that only 0.42 ≤ tan β≲0.76 and tan β≳1.30 are the allowed values for tan β=υ2/υ1. We also determine the absolute lower bound on the lightest Higgs mass to be ≈8 GeV. We conclude that improved lower bounds on the top quark mass and/or the standard model Higgs boson mass will impose yet more stringent constraints on the model. These results clearly favor tan β>1, in agreement with N=1 supergravity or superstring-inspired models.

scholarly journals Full top quark mass dependence in Higgs boson pair production at NLO

2016 ◽  
Vol 2016 (10) ◽  
Author(s):  
S. Borowka ◽  
N. Greiner ◽  
G. Heinrich ◽  
S.P. Jones ◽  
M. Kerner ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Top Quark ◽  
Quark Mass ◽  
Mass Dependence ◽  
Top Quark Mass ◽  
Boson Pair ◽  
Boson Pair Production ◽  
Quark Mass Dependence

scholarly journals Higgs boson pair production at NNLO with top quark mass effects

2018 ◽  
Vol 2018 (5) ◽  
Author(s):  
M. Grazzini ◽  
G. Heinrich ◽  
S. Jones ◽  
S. Kallweit ◽  
M. Kerner ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Top Quark ◽  
Quark Mass ◽  
Top Quark Mass ◽  
Boson Pair ◽  
Boson Pair Production ◽  
Mass Effects

QCD CORRECTION FACTORS FOR $K^0 -\overline K^0$ MIXING FOR LARGE TOP QUARK MASS

1990 ◽  
Vol 05 (11) ◽  
pp. 877-885 ◽  
Author(s):  
JONATHAN M. FLYNN
Keyword(s):  
Top Quark ◽  
Quark Mass ◽  
Correction Factors ◽  
Top Quark Mass ◽  
Factor B ◽  
Quark Masses ◽  
Effective Lagrangian ◽  
Mixing Parameter ◽  
200 Gev ◽  
Top Mass

I modify the calculation of the QCD correction factors in the ΔS = 2 effective Lagrangian for [Formula: see text] mixing to allow top quark masses in the range 50 GeV to 200 GeV. I give constraints on the top mass and Kobayashi-Maskawa phase, determined from the measured [Formula: see text] mixing parameter ε, and find that the factor BK and the ratio |Vub/Vcb| cannot both be smalI if mt < 200 GeV .

Renormalization-group-improved unitarity bounds on the Higgs-boson and top-quark masses

1989 ◽  
Vol 40 (5) ◽  
pp. 1725-1729 ◽  
Author(s):  
W. Marciano ◽  
G. Valencia ◽  
S. Willenbrock
Keyword(s):  
Renormalization Group ◽  
Higgs Boson ◽  
Top Quark ◽  
Quark Masses

scholarly journals Erratum: Top quark mass dependence of the Higgs boson-gluon form factor at three loops [Phys. Rev. D 100 , 034017 (2019)]

2020 ◽  
Vol 102 (5) ◽  
Author(s):  
Joshua Davies ◽  
Ramona Gröber ◽  
Andreas Maier ◽  
Thomas Rauh ◽  
Matthias Steinhauser
Keyword(s):  
Form Factor ◽  
Higgs Boson ◽  
Top Quark ◽  
Quark Mass ◽  
Mass Dependence ◽  
Top Quark Mass ◽  
Quark Mass Dependence
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