scholarly journals ATLAS Measurements of the Higgs Boson Coupling to the Top Quark in the Higgs to Diphoton Decay Channel

2021 ◽  
Author(s):  
Jennet Elizabeth Dickinson
Keyword(s):  
Higgs Boson ◽  
Top Quark ◽  
Decay Channel ◽  
Boson Coupling

scholarly journals Indirect $$ \mathcal{CP} $$ probes of the Higgs-top-quark interaction: current LHC constraints and future opportunities

2020 ◽  
Vol 2020 (11) ◽  
Author(s):  
Henning Bahl ◽  
Philip Bechtle ◽  
Sven Heinemeyer ◽  
Judith Katzy ◽  
Tobias Klingl ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Top Quark ◽  
Decay Channel ◽  
New Physics ◽  
Current Data ◽  
Quark Interaction ◽  
The Standard Model ◽  
Vector Bosons ◽  
Selection Of

Abstract The $$ \mathcal{CP} $$ CP structure of the Higgs boson in its coupling to the particles of the Standard Model is amongst the most important Higgs boson properties which have not yet been constrained with high precision. In this study, all relevant inclusive and differential Higgs boson measurements from the ATLAS and CMS experiments are used to constrain the $$ \mathcal{CP} $$ CP -nature of the top-Yukawa interaction. The model dependence of the constraints is studied by successively allowing for new physics contributions to the couplings of the Higgs boson to massive vector bosons, to photons, and to gluons. In the most general case, we find that the current data still permits a significant $$ \mathcal{CP} $$ CP -odd component in the top-Yukawa coupling. Furthermore, we explore the prospects to further constrain the $$ \mathcal{CP} $$ CP properties of this coupling with future LHC data by determining tH production rates independently from possible accompanying variations of the $$ t\overline{t}H $$ t t ¯ H rate. This is achieved via a careful selection of discriminating observables. At the HL-LHC, we find that evidence for tH production at the Standard Model rate can be achieved in the Higgs to diphoton decay channel alone.

Higgs boson coupling behavior at large top quark coupling in the standard model

1997 ◽  
Vol 55 (9) ◽  
pp. 5804-5806
Author(s):  
G. A. Kozlov
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Top Quark ◽  
Quark Coupling ◽  
Coupling Behavior ◽  
The Standard Model ◽  
Boson Coupling

scholarly journals LOOKING FOR THE CHARGED HIGGS BOSON

2004 ◽  
Vol 19 (24) ◽  
pp. 1813-1828 ◽  
Author(s):  
D. P. ROY
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Minimal Supersymmetric Standard Model ◽  
Top Quark ◽  
Decay Channel ◽  
Charged Higgs Boson ◽  
Charged Higgs ◽  
Top Quark Decay ◽  
Quark Decay

This review starts with a brief introduction to the charged Higgs boson (H±) in the Minimal Supersymmetric Standard Model (MSSM). It then discusses the prospects of a relatively light H± boson search via top quark decay at Tevatron/LHC, and finally a heavy H± boson search at LHC. The viable channels for H± search are identified in both the cases, with particular emphasis on the H±→τν decay channel. The effects of NLO QCD correction in the SM as well as the MSSM are discussed briefly.

scholarly journals Measurement of the Higgs boson coupling properties in the H → ZZ∗ → 4ℓ decay channel at $$ \sqrt{s}=13 $$ TeV with the ATLAS detector

2018 ◽  
Vol 2018 (3) ◽  
Author(s):  
M. Aaboud ◽  
◽  
G. Aad ◽  
B. Abbott ◽  
O. Abdinov ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Decay Channel ◽  
Atlas Detector ◽  
Boson Coupling

scholarly journals Investigation of charged Higgs boson in the bottom and top quark decay channel at the FCC-hh

2021 ◽  
pp. 136375
Author(s):  
I. Turk Cakir ◽  
O. Cakir ◽  
H. Denizli ◽  
A. Senol ◽  
A. Yilmaz
Keyword(s):  
Higgs Boson ◽  
Top Quark ◽  
Decay Channel ◽  
Charged Higgs Boson ◽  
Charged Higgs ◽  
Top Quark Decay ◽  
Quark Decay

scholarly journals Measurements of tt¯H Production and the CP Structure of the Yukawa Interaction between the Higgs Boson and Top Quark in the Diphoton Decay Channel

2020 ◽  
Vol 125 (6) ◽  
Author(s):  
A. M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
F. Ambrogi ◽  
T. Bergauer ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Top Quark ◽  
Decay Channel ◽  
Yukawa Interaction

scholarly journals Probing anomalous tqh couplings via single top production in associated with the Higgs boson at the HE-LHC and FCC-hh

2020 ◽  
Vol 80 (9) ◽  
Author(s):  
Yan-Ju Zhang ◽  
Jie-Fen Shen
Keyword(s):  
Higgs Boson ◽  
Top Quark ◽  
Decay Channel ◽  
Neutral Current ◽  
Hadron Collider ◽  
High Energy ◽  
Branching Ratios ◽  
Single Top ◽  
Upper Limits ◽  
Integrated Luminosity

AbstractWe investigate the prospects for discovering the Flavour Changing Neutral Current (FCNC) tqh couplings via the process $$pp\rightarrow th$$ p p → t h at the proposed High Energy Large Hadron Collider (HE-LHC) and Future Circular Collider in hadron-hadron mode (FCC-hh) including the realistic detector effects. The relevant SM backgrounds are considered in the cut based analysis to obtain the limits on the the branching ratios of $$t\rightarrow qh~(q=u,c)$$ t → q h ( q = u , c ) , followed by the leptonic decay channel of the top quark and diphoton decay channel of the Higgs boson. The upper limits on the FCNC branching ratios at 95% confidence level (CL) and the $$5\sigma $$ 5 σ discovery reach for the different integrated luminosities are obtained. It is shown that at the 27 TeV HE-LHC with an integrated luminosity of 15 ab$$^{-1}$$ - 1 and at the 100 TeV FCC-hh with an integrated luminosity of 30 ab$$^{-1}$$ - 1 , the BR($$t\rightarrow uh$$ t → u h ) (BR($$t\rightarrow ch$$ t → c h )) can be probed, respectively, to $$4.4~(6.4)\times 10^{-5}$$ 4.4 ( 6.4 ) × 10 - 5 and $$1.3~(1.6) \times 10^{-5}$$ 1.3 ( 1.6 ) × 10 - 5 at the 95% CL.

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
Sign in / Sign up

Export Citation Format

Share Document