scholarly journals B-L extension of the SM -Z′and heavy Higgs boson analysis at futuree+e−linear colliders ILC and CLIC

2018 ◽  
Vol 1078 ◽  
pp. 012018
Author(s):  
F Ramírez-Sánchez ◽  
A Gutierrez-Rodríguez ◽  
M A Hernández-Ruiz
Keyword(s):  
Higgs Boson ◽  
Linear Colliders ◽  
Heavy Higgs Boson

scholarly journals Search for a heavy Higgs boson decaying into two lighter Higgs bosons in the ττbb final state at 13 TeV

2021 ◽  
Vol 2021 (11) ◽  
Author(s):  
◽  
A. Tumasyan ◽  
W. Adam ◽  
J. W. Andrejkovic ◽  
T. Bergauer ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Cross Section ◽  
Production Cross Section ◽  
Production Cross ◽  
Branching Fractions ◽  
Center Of Mass ◽  
Final State ◽  
Signal Process ◽  
Center Of Mass Energy ◽  
Heavy Higgs Boson

Abstract A search for a heavy Higgs boson H decaying into the observed Higgs boson h with a mass of 125 GeV and another Higgs boson hS is presented. The h and hS bosons are required to decay into a pair of tau leptons and a pair of b quarks, respectively. The search uses a sample of proton-proton collisions collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb−1. Mass ranges of 240–3000 GeV for mH and 60–2800 GeV for $$ {m}_{{\mathrm{h}}_{\mathrm{S}}} $$ m h S are explored in the search. No signal has been observed. Model independent 95% confidence level upper limits on the product of the production cross section and the branching fractions of the signal process are set with a sensitivity ranging from 125 fb (for mH = 240 GeV) to 2.7 fb (for mH = 1000 GeV). These limits are compared to maximally allowed products of the production cross section and the branching fractions of the signal process in the next-to-minimal supersymmetric extension of the standard model.

scholarly journals Searching for a heavy Higgs boson in a Higgs-portalB−Lmodel

2015 ◽  
Vol 92 (5) ◽  
Author(s):  
Shankha Banerjee ◽  
Manimala Mitra ◽  
Michael Spannowsky
Keyword(s):  
Higgs Boson ◽  
Heavy Higgs Boson

Exceptional point and degeneracy of the neutral heavy Higgs boson system H[sub 2]−H[sub 3]

2010 ◽  
Author(s):  
O. Félix-Beltrán ◽  
M. Gómez-Bock ◽  
E. Hernández ◽  
A. Mondragón ◽  
M. Mondragón ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Exceptional Point ◽  
Boson System ◽  
Heavy Higgs Boson

scholarly journals Z′ and Higgs Boson Production Associated with a Top Quark Pair as a Probe of the U(1)B-L Model at e+e- Colliders

2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
F. Ramírez-Sánhez ◽  
A. Gutiérrez-Rodríguez ◽  
Alejandro González-Sánchez ◽  
M. A. Hernández-Ruíz
Keyword(s):  
Higgs Boson ◽  
Cross Section ◽  
Top Quark ◽  
Higgs Bosons ◽  
Precision Measurements ◽  
Boson Production ◽  
Resonance Effects ◽  
Linear Colliders ◽  
Analytical Formulas ◽  
Near Future

We study the production sensitivity of Higgs bosons h and H, in relation to the possible existence of Z′ boson and a top quark pair at the energy scales that will be reached in the near future at projected e+e- linear colliders. We focus on the resonance and no-resonance effects of the annihilation processes e+e-→(γ,Z,Z′)→tt-h and e+e-→(γ,Z,Z′)→tt-H. Furthermore, we develop and present novel analytical formulas to assess the total cross section involved in the production of Higgs bosons. We find that the possibility of performing precision measurements for the Higgs bosons h and H and for the Z′ boson is very promising at future e+e- linear colliders.

SEARCHING FOR AN INTERMEDIATE MASS HIGGS BOSON AT LARGE ENERGY e+e− LINEAR COLLIDERS

1986 ◽  
Vol 01 (09) ◽  
pp. 517-523 ◽  
Author(s):  
G. ALTARELLI ◽  
E. FRANCO
Keyword(s):  
Higgs Boson ◽  
Decay Mode ◽  
Large Energy ◽  
Intermediate Mass ◽  
Background Ratio ◽  
Linear Colliders ◽  
Experimental Resolution

Production and detection via its quark-antiquark decay mode of a Higgs boson with mass MW<mH<300 GeV in e+e− reactions with [Formula: see text] is studied. Contrary to the case of p-p large energy colliders we find that for realistic values of the experimental resolution the signal over background ratio is sufficient for detection in most cases.

scholarly journals One-loop effects of a heavy Higgs boson: A functional approach

1995 ◽  
Author(s):  
Stefan Dittmaier ◽  
Carsten Grosse-Knetter
Keyword(s):  
Higgs Boson ◽  
Functional Approach ◽  
Heavy Higgs Boson
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