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.

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 Theoretical analysis of the γγ(*) → π0η process

2019 ◽  
Vol 199 ◽  
pp. 02005 ◽  
Author(s):  
Oleksandra Deineka ◽  
Igor Danilkin ◽  
Marc Vanderhaeghen
Keyword(s):  
Theoretical Analysis ◽  
Energy Range ◽  
Decay Width ◽  
Riemann Sheet ◽  
Two Photon ◽  
Photon Decay ◽  
Wave Resonance ◽  
Coupled Channel

The theoretical analysis of the γγ → π0η process is presented within the energy range up to 1.4 GeV. The S -wave resonance a0(980) is described involving the coupled channel dispersive framework and the D-wave a2(1320) is approximated as a Breit-Wigner resonance. For the a0(980) the pole is found on the IV Riemann sheet resulting in a two-photon decay width of Γa0 → γγ = 0.27(4) keV. The first dispersive prediction is provided for the single-virtual γγ*(Q2) → π0η process in the spacelike region up to Q2 = 1 GeV2.

scholarly journals NEW HUNT FOR AN INTERMEDIATE MASS HIGGS-BOSON IN PERIPHERAL ULTRARELATIVISTIC HEAVY-ION COLLISIONS

1995 ◽  
Vol 10 (32) ◽  
pp. 2471-2477 ◽  
Author(s):  
MARIO VIDOVIĆ ◽  
MARTIN GREINER ◽  
GERHARD SOFF
Keyword(s):  
Higgs Boson ◽  
Heavy Ion Collisions ◽  
Collision Energy ◽  
Gluon Fusion ◽  
Heavy Ion ◽  
Intermediate Mass ◽  
Two Photon ◽  
Ion Collisions ◽  
Text Production ◽  
Ultrarelativistic Heavy Ion Collisions

We reopen the discussion on the two-photon production of the intermediate mass Higgs-boson in peripheral ultrarelativistic heavy-ion collisions at LHC. Due to larger expected luminosity, larger collision energy and higher photon energies, the Higgs production rate is enlarged by more than a factor of 10 in Ca+Ca collisions compared to Pb+Pb collisions. Besides the background of direct [Formula: see text]-production via two-photon fusion, we also discuss photon-gluon fusion into [Formula: see text].

scholarly journals Production and two-photon decay of the MSSM scalar Higgs bosons at the LHC

1996 ◽  
Vol 71 (1) ◽  
pp. 87-94 ◽  
Author(s):  
B. Kileng ◽  
P. Osland ◽  
P. N. Pandita
Keyword(s):  
Higgs Bosons ◽  
Two Photon ◽  
Photon Decay

scholarly journals Reply to “Comment on ‘Two-photon decay width of the sigma meson’ ”

2009 ◽  
Vol 79 (9) ◽  
Author(s):  
Francesco Giacosa ◽  
Thomas Gutsche ◽  
Valery E. Lyubovitskij
Keyword(s):  
Decay Width ◽  
Two Photon ◽  
Photon Decay ◽  
Sigma Meson

π0 DECAY AT CRITICAL TEMPERATURE

1992 ◽  
Vol 07 (27) ◽  
pp. 2493-2503 ◽  
Author(s):  
PIN-ZHEN BI ◽  
JOHANN RAFELSKI
Keyword(s):  
Decay Width ◽  
Decay Constant ◽  
Pion Mass ◽  
Quark Condensate ◽  
Chiral Symmetry Restoration ◽  
Pion Decay Constant ◽  
Two Photon ◽  
Photon Decay ◽  
Hot Matter ◽  
Influence Of Temperature On

The influence of temperature on the pion decay constant and the two-photon decay of π0 is considered near the chiral symmetry restoration point. We analyze how the mass and decay width relate to each other and find that the π0 decay width in hot matter is suppressed, provided that the pion mass vanishes at the critical point; it diverges if pion mass remains finite while quark condensate is dissolved at T c .

scholarly journals DETECTION OF INTERMEDIATE MASS HIGGS BOSONS FROM SPONTANEOUSLY BROKEN R-PARITY SUPERSYMMETRY

1994 ◽  
Vol 09 (09) ◽  
pp. 817-827 ◽  
Author(s):  
J. C. ROMÃO ◽  
J. L. DIAZ-CRUZ ◽  
F. DE CAMPOS ◽  
J. W. F. VALLE
Keyword(s):  
Mass Spectrum ◽  
Higgs Boson ◽  
Transverse Momentum ◽  
Higgs Sector ◽  
Higgs Bosons ◽  
Supersymmetric Model ◽  
Intermediate Mass ◽  
Missing Transverse Momentum ◽  
The Standard Model ◽  
Minimal Supersymmetric Model

The Higgs sector in spontaneously broken R-parity supersymmetry (RPSUSY) shows interesting features that require new search techniques. Both the mass spectrum and production rates may differ from the Standard Model and minimal supersymmetric model (MSSM) expectations. For some parameter choices, the dominant Higgs boson decay mode can even be invisible, leading to events with large missing transverse momentum carried by superweakly interacting majorons. We study the reaction pp → Z + H + X, and find that it can lead to detectable events at LHC/SSC for a large region of parameter space.

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