scholarly journals Top anomalous magnetic moment and the two-photon decay of the Higgs boson

2013 ◽  
Vol 88 (7) ◽  
Author(s):  
Lance Labun ◽  
Johann Rafelski
Keyword(s):  
Higgs Boson ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Two Photon ◽  
Photon Decay

MEASUREMENT OF THE TWO-PHOTON DECAY WIDTH OF THE INTERMEDIATE MASS HIGGS BOSONS IN A PHOTON-PHOTON COLLIDER

1998 ◽  
Vol 13 (14) ◽  
pp. 2411-2416 ◽  
Author(s):  
T. OHGAKI ◽  
T. TAKAHASHI ◽  
I. WATANABE ◽  
T. TAUCHI
Keyword(s):  
Higgs Boson ◽  
Decay Width ◽  
Statistical Error ◽  
Higgs Bosons ◽  
Partial Decay Width ◽  
Intermediate Mass ◽  
Two Photon ◽  
Photon Decay ◽  
Photon Collider ◽  
B Quark

The feasibility of a measurement of the partial decay width of the intermediate-mass Higgs boson(MH=120 GeV ) into two photons at a photon-photon collider is studied by a simulation. It is found that the two-photon decay width can be measured with the statistical error of 7.6% with the integrated luminosity of 10fb-1. We also discussed a possibility toward further improvement with sophisticated b-quark tagging technique.

scholarly journals Gamma-gamma physics and meson transition form factors

2020 ◽  
Vol 234 ◽  
pp. 01008
Author(s):  
Andrzej Kupsc
Keyword(s):  
Pseudoscalar Meson ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Neutral Pion ◽  
Form Factors ◽  
Photon Production ◽  
Transition Form ◽  
Muon Anomalous Magnetic Moment ◽  
Two Photon ◽  
Radiative Processes

I summarize recent experimental results for two photon production of mesons. These processes include the neutral pion, η and η′ transition form factors and two photon production of pseudoscalar meson pairs. In addition I discuss the related hadronic and radiative processes. All these processes are attracting attention of experiment and theory due their relevance for the hadronic light-by-light contribution to the muon anomalous magnetic moment.

Two-photon decay width of the Higgs boson in left-right-symmetric theories

1989 ◽  
Vol 40 (5) ◽  
pp. 1722-1724 ◽  
Author(s):  
R. Martínez ◽  
M. A. Pérez ◽  
J. J. Toscano
Keyword(s):  
Higgs Boson ◽  
Decay Width ◽  
Two Photon ◽  
Photon Decay

scholarly journals Search for the Standard Model Higgs boson in the two photon decay channel with the ATLAS detector at the LHC

2011 ◽  
Vol 705 (5) ◽  
pp. 452-470 ◽  
Author(s):  
G. Aad ◽  
B. Abbott ◽  
J. Abdallah ◽  
A.A. Abdelalim ◽  
A. Abdesselam ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Decay Channel ◽  
Atlas Detector ◽  
Standard Model Higgs Boson ◽  
Two Photon ◽  
Photon Decay ◽  
The Standard Model

scholarly journals Muon g − 2 in gauge mediation without SUSY CP problem

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Masahiro Ibe ◽  
Shin Kobayashi ◽  
Yuhei Nakayama ◽  
Satoshi Shirai
Keyword(s):  
Higgs Boson ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Neutral Current ◽  
Boson Mass ◽  
Higgs Boson Mass ◽  
Gauge Mediation ◽  
Muon Anomalous Magnetic Moment ◽  
Mediation Effects ◽  
Successful Model

Abstract We discuss gauge mediated supersymmetry breaking models which explain the observed muon anomalous magnetic moment and the Higgs boson mass simultaneously. The successful explanation requires the messenger sector which violates the relation motivated by the grand unification theory (GUT). The naive violation of the GUT relation, however, ends up with the CP problem. We propose a model in which the phases of the gaugino masses are aligned despite the violation of the GUT relation. We also consider a model which generates the μ-term and the additional Higgs soft masses squared without causing CP violation. As a result, we find a successful model which explains the muon anomalous magnetic moment and the Higgs boson mass. The model is also free from the CP, flavor-changing neutral current and the lepton flavor violation problems caused by the subdominant gravity mediation effects. The lightest supersymmetric particles are gravitino/goldstini and the next-to-lightest ones are the Wino/Higgsinos in the typical parameter space. We also study the LHC constraints.

QCD CORRECTIONS TO TWO-PHOTON DECAY OF THE HIGGS BOSON AND ITS REVERSE PROCESS

1994 ◽  
Vol 09 (13) ◽  
pp. 1189-1194 ◽  
Author(s):  
M. INOUE ◽  
R. NAJIMA ◽  
T. OKA ◽  
J. SAITO
Keyword(s):  
Higgs Boson ◽  
Top Quark ◽  
Quark Mass ◽  
Electroweak Interaction ◽  
Top Quark Mass ◽  
Two Photon ◽  
Photon Decay ◽  
Reverse Process ◽  
The Standard Model ◽  
Heavy Higgs Boson

Two-photon decay of the Higgs boson H→γγ and its reverse process γγ→H are important processes in detecting Higgs boson which plays a fundamental role in the Standard Model of electroweak interaction. We calculate the QCD corrections to these processes for all mass ranges of the Higgs boson without any constraint for the top quark mass. For a heavy Higgs boson (mH≫mt), the QCD corrections become very large (50–100%), while for a lighter one (mH≤mt), the corrections are negligible.

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