scholarly journals Angular distribution and forward–backward asymmetry of the Higgs-boson decay to photon and lepton pair

2014 ◽  
Vol 74 (11) ◽  
Author(s):  
Alexander Yu. Korchin ◽  
Vladimir A. Kovalchuk
Keyword(s):  
Angular Distribution ◽  
Higgs Boson ◽  
Lepton Pair

scholarly journals Fiducial cross sections for the lepton-pair-plus-photon decay mode in Higgs production up to NNLO QCD

2022 ◽  
Vol 2022 (1) ◽  
Author(s):  
X. Chen ◽  
T. Gehrmann ◽  
E. W. N. Glover ◽  
A. Huss
Keyword(s):  
Higgs Boson ◽  
Decay Mode ◽  
Cross Sections ◽  
Gluon Fusion ◽  
Lepton Pair ◽  
Distinctive Features ◽  
Photon Decay ◽  
Higgs Decay ◽  
Decay Products ◽  
Three Body

Abstract The rare three-body decay of a Higgs boson to a lepton-antilepton pair and a photon is starting to become experimentally accessible at the LHC. We investigate how higher-order QCD corrections to the dominant gluon-fusion production process impact on the fiducial cross sections in this specific Higgs decay mode for electrons and muons. Corrections up to NNLO QCD are found to be sizeable. They are generally uniform in kinematical variables related to the Higgs boson, but display several distinctive features in the kinematics of its individual decay products.

scholarly journals Higgs boson decay into a lepton pair and a photon revisited

2020 ◽  
Vol 101 (7) ◽  
Author(s):  
Aliaksei Kachanovich ◽  
Ulrich Nierste ◽  
Ivan Nišandžić
Keyword(s):  
Higgs Boson ◽  
Lepton Pair

ON THE DECAY OF A HEAVY HIGGS BOSON INTO Z+LEPTON PAIR IN E6 SUPERSTRING MODELS

1989 ◽  
Vol 04 (14) ◽  
pp. 3629-3633
Author(s):  
G. PÓCSIK ◽  
T. TORMA
Keyword(s):  
Higgs Boson ◽  
Energy Distribution ◽  
Decay Mode ◽  
Lepton Pair ◽  
Energy Distributions ◽  
Parameter Ranges ◽  
Heavy Higgs Boson

We calculate the width (Γ) and differential energy distributions of [Formula: see text] in E6-based models containing one extra U(1). For a fixed Z′ mass, Γ is strongly growing with increasing mH, while for a fixed mH it decreases strongly with increasing mz′. The energy distribution of Z has a pronounced maximum tending to larger energies of Z with increasing mH, for a fixed mz′. In certain parameter ranges, Γ is larger than the width of the [Formula: see text] decay mode.

scholarly journals Higgs-Boson Decay to Lepton Pair and Photon and Possible Non-Hermiticity of the Yukawa Interaction

2017 ◽  
Vol 62 (7) ◽  
pp. 557-564
Author(s):  
V.A. Kovalchuk ◽  
◽  
A.Yu. Korchin ◽  
◽  
◽  
...  
Keyword(s):  
Higgs Boson ◽  
Lepton Pair ◽  
Yukawa Interaction

scholarly journals Higgs boson decay into a lepton pair and a photon: A roadmap to the discovery of H→Zγ and probes of new physics

2022 ◽  
Vol 105 (1) ◽  
Author(s):  
Aliaksei Kachanovich ◽  
Ulrich Nierste ◽  
Ivan Nišandžić
Keyword(s):  
Higgs Boson ◽  
New Physics ◽  
Lepton Pair

scholarly journals MORE SIGNATURES OF THE INTERMEDIATE MASS HIGGS BOSON

1999 ◽  
Vol 14 (22) ◽  
pp. 1479-1486 ◽  
Author(s):  
PANKAJ AGRAWAL
Keyword(s):  
Higgs Boson ◽  
Decay Mode ◽  
Mass Range ◽  
Lepton Pair ◽  
Tau Lepton ◽  
Intermediate Mass

We examine the potential signatures of the Higgs boson when it decays into a tau–lepton pair. We show that with the proper identification of the tau-jet, this decay mode can lead to the identification of the Higgs boson over most of the intermediate mass range (MW<MH<2MW).

scholarly journals FURTHER STUDIES OF HIGGS PROPERTIES AT AN ILC γγ COLLIDER

2013 ◽  
Vol 28 (18) ◽  
pp. 1350085 ◽  
Author(s):  
XIAO-GANG HE ◽  
SIAO-FONG LI ◽  
HSIU-HSIEN LIN
Keyword(s):  
Angular Distribution ◽  
Higgs Boson ◽  
Standard Model ◽  
Decay Mode ◽  
Branching Ratio ◽  
Current Data ◽  
Decay Modes ◽  
The Standard Model ◽  
Shell Production

Recently the ATLAS and CMS experiments at the LHC have found a Higgs-like boson h with a mass around 125 GeV from several decay modes. The decay mode h →γγ is one of the most important modes in studying whether h is actually the Standard Model (SM) Higgs boson. Current data indicate that h→γγ has a branching ratio larger than the SM prediction for h being identified as the SM Higgs boson. To decide whether the h discovered at the LHC is the SM Higgs boson, more data are needed. We study how γγ collider can help to provide some of the most important information about the Higgs boson properties. We show that a γγ collider can easily verify whether the enhanced h →γγ observed at the LHC hold. Different models can be tested by studying Higgs boson decay to γZ. Studying angular distribution of the γγ through on-shell production of h and its subsequent decays into a γγ pair can decide whether the Higgs-like boson h at the LHC is a spin-0 or a spin-2 boson.

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