scholarly journals Light charged Higgs boson with dominant decay to a charm quark and a bottom quark and its search at LEP2 and future e+e− colliders

2020 ◽  
Vol 101 (3) ◽  
Author(s):  
A. G. Akeroyd ◽  
Stefano Moretti ◽  
Muyuan Song
Keyword(s):  
Higgs Boson ◽  
Bottom Quark ◽  
Charm Quark ◽  
Charged Higgs Boson ◽  
Charged Higgs

scholarly journals Search for charged Higgs bosons decaying into a top quark and a bottom quark at $$ \sqrt{\mathrm{s}} $$ = 13 TeV with the ATLAS detector

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
◽  
G. Aad ◽  
B. Abbott ◽  
D. C. Abbott ◽  
A. Abed Abud ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Top Quark ◽  
Production Cross ◽  
Bottom Quark ◽  
Branching Ratio ◽  
Charged Higgs Boson ◽  
Atlas Detector ◽  
Higgs Bosons ◽  
Charged Higgs ◽  
Charged Higgs Bosons

Abstract A search for charged Higgs bosons decaying into a top quark and a bottom quark is presented. The data analysed correspond to 139 fb−1 of proton-proton collisions at $$ \sqrt{s} $$ s = 13 TeV, recorded with the ATLAS detector at the LHC. The production of a heavy charged Higgs boson in association with a top quark and a bottom quark, pp → tbH+ → tbtb, is explored in the H+ mass range from 200 to 2000 GeV using final states with jets and one electron or muon. Events are categorised according to the multiplicity of jets and b-tagged jets, and multivariate analysis techniques are used to discriminate between signal and background events. No significant excess above the background-only hypothesis is observed and exclusion limits are derived for the production cross-section times branching ratio of a charged Higgs boson as a function of its mass; they range from 3.6 pb at 200 GeV to 0.036 pb at 2000 GeV at 95% confidence level. The results are interpreted in the hMSSM and $$ {M}_h^{125} $$ M h 125 scenarios.

scholarly journals The forgotten channels: charged Higgs boson decays to a W± and a non-SM-like Higgs boson

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Henning Bahl ◽  
Tim Stefaniak ◽  
Jonas Wittbrodt
Keyword(s):  
Higgs Boson ◽  
Higgs Sector ◽  
Higgs Doublet ◽  
Charged Higgs Boson ◽  
Higgs Bosons ◽  
Type I ◽  
Collider Phenomenology ◽  
Charged Higgs ◽  
Charged Higgs Bosons ◽  
Almost All

Abstract The presence of charged Higgs bosons is a generic prediction of multiplet extensions of the Standard Model (SM) Higgs sector. Focusing on the Two-Higgs-Doublet-Model (2HDM) with type I and lepton-specific Yukawa sectors, we discuss the charged Higgs boson collider phenomenology in the theoretically and experimentally viable parameter space. While almost all existing experimental searches at the LHC target the fermionic decays of charged Higgs bosons, we point out that the bosonic decay channels — especially the decay into a non-SM-like Higgs boson and a W boson — often dominate over the fermionic channels. Moreover, we revisit two genuine BSM effects on the properties of the discovered Higgs boson — the charged Higgs contribution to the diphoton rate and the Higgs decay to two light Higgs bosons — and their implication for the charged Higgs boson phenomenology. As main result of the present paper, we propose five two-dimensional benchmark scenarios with distinct phenomenological features in order to facilitate the design of dedicated LHC searches for charged Higgs bosons decaying into a W boson and a light, non-SM-like Higgs boson.

scholarly journals Identify charged Higgs boson inW±H∓associated production at the LHC

2012 ◽  
Vol 85 (7) ◽  
Author(s):  
Shou-Shan Bao ◽  
Xue Gong ◽  
Hong-Lei Li ◽  
Shi-Yuan Li ◽  
Zong-Guo Si
Keyword(s):  
Higgs Boson ◽  
Charged Higgs Boson ◽  
Associated Production ◽  
Charged Higgs

scholarly journals Effects of R -parity Violation on the Charged Higgs Boson Decays

2005 ◽  
Vol 43 (5) ◽  
pp. 873-878
Author(s):  
Song Yi-Ping ◽  
Li Chong-Sheng ◽  
Li Qiang ◽  
Liu Jian-Jun
Keyword(s):  
Higgs Boson ◽  
Parity Violation ◽  
Charged Higgs Boson ◽  
Charged Higgs

scholarly journals The hadronic tau decay signature of a heavy charged Higgs boson at LHC

1999 ◽  
Vol 459 (4) ◽  
pp. 607-614 ◽  
Author(s):  
D.P Roy
Keyword(s):  
Higgs Boson ◽  
Charged Higgs Boson ◽  
Charged Higgs ◽  
Hadronic Tau

Supersymmetric-charged-Higgs-boson production at the Superconducting Super Collider

1988 ◽  
Vol 37 (3) ◽  
pp. 837-839 ◽  
Author(s):  
O. J. P. Éboli ◽  
G. C. Marques ◽  
S. F. Novaes ◽  
A. A. Natale ◽  
J. M. R. Pulido
Keyword(s):  
Higgs Boson ◽  
Charged Higgs Boson ◽  
Boson Production ◽  
Higgs Boson Production ◽  
Superconducting Super Collider ◽  
Charged Higgs

EFFECTS OF THE CHARGED HIGGS BOSON ON THE b→sl+l− DECAY

1989 ◽  
Vol 04 (20) ◽  
pp. 1945-1954 ◽  
Author(s):  
M. CIUCHINI
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Higgs Sector ◽  
Higgs Doublet ◽  
Charged Higgs Boson ◽  
The Standard Model ◽  
Charged Higgs ◽  
Free Parameters

The 2H model that resembles the Higgs sector of the minimal N=1 SUSY version of the standard model is considered and the contribution of the charged Higgs boson to the rate of the b→sl+l− transition is studied as a function of the free parameters MH, Mt and the squared two Higgs doublet v.e.v. ratio r. It is shown that this process can be suppressed by the charged Higgs boson contribution and that in general it is not very sensitive to its presence unless (SUSY-forbidden) values of r>1 are assumed.

scholarly journals Triply charged Higgs bosons at a 100 TeV pp collider

2021 ◽  
Vol 81 (1) ◽  
Author(s):  
Junxing Pan ◽  
Jung-Hsin Chen ◽  
Xiao-Gang He ◽  
Gang Li ◽  
Jhih-Ying Su
Keyword(s):  
Higgs Boson ◽  
Hadron Collider ◽  
Vacuum Expectation ◽  
Vacuum Expectation Value ◽  
Mass Splitting ◽  
Charged Higgs Boson ◽  
Higgs Bosons ◽  
Boson Mass ◽  
Final State ◽  
Charged Higgs

AbstractIn this work, we study the potential of searching for triply charged Higgs boson originating from a complex Higgs quadruplet in the final state with at least three same-sign leptons. A detailed collider analysis of the SM backgrounds and signals is performed at a 100 TeV pp collider for the triply charged Higgs boson mass below 1 TeV and the Higgs quadruplet vacuum expectation value $$v_\Delta $$ v Δ ranging from $$1.5\times 10^{-9}~\text {GeV}$$ 1.5 × 10 - 9 GeV to $$1.3~\text {GeV}$$ 1.3 GeV and the mass splitting $$\Delta m$$ Δ m between the nearby states of the Higgs quadruplet satisfying $$|\Delta m|\lesssim 30~\text {GeV}$$ | Δ m | ≲ 30 GeV . About $$100~\text {fb}^{-1}$$ 100 fb - 1 of data are required at most for $$5\sigma $$ 5 σ discovery. We also revisit the sensitivity at the Large Hadron Collider (LHC) and find that $$5\sigma $$ 5 σ discovery of the triply charged Higgs boson below 1 TeV can be reached for a relatively small $$v_\Delta $$ v Δ . For example, if $$v_\Delta =10^{-6}~\text {GeV}$$ v Δ = 10 - 6 GeV and $$\Delta m=0$$ Δ m = 0 , the integrated luminosity of $$330~\text {fb}^{-1}$$ 330 fb - 1 is needed. But for a relatively large $$v_\Delta $$ v Δ , i.e., $$v_\Delta \gtrsim 10^{-3}~\text {GeV}$$ v Δ ≳ 10 - 3 GeV , the triply charged Higgs boson above about 800 GeV cannot be discovered even in the high-luminosity LHC era. For $$\Delta m>0$$ Δ m > 0 , the cascade decays are open and the sensitivity can be improved depending on the value of $$v_\Delta $$ v Δ .

scholarly journals Production of the heaviest charged Higgs boson in 3-3-1 models

2013 ◽  
Author(s):  
Fredy Ochoa ◽  
Roberto Martinez
Keyword(s):  
Higgs Boson ◽  
Charged Higgs Boson ◽  
Charged Higgs
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