arXiv subjects

A. Abbasabadi

Publications and source records attributed to A. Abbasabadi.

3 recordsLinked to original sources

arXiv1998

Higgs-photon associated production at hadron colliders

We present cross sections for the reactions p pbar --> H gamma and pp --> Hγarising from the subprocess q qbar --> H gamma. The calculation includes the complete one-loop contribution from all light quarks as well as the tree contributions from light quarks and c and b quarks. These are the main sources of Higgs-photon associated production at hadron colliders. At Tevatron energies, the cross section is typically between 0.1fb and 1 fb for 80 Gev < m_H < 160 GeV, and at LHC energies it exceeds about 2 fb over the same range of m_H. While substantial, these cross sections are not large enough to produce a signal which is discernable above the backgrounds from q qbar-->b bbar gamma and gg-->b bbar gamma.

hep-ph↗

arXiv1997

Higgs-photon production at μ\barμ colliders

We present cross sections for the reaction $μ\barμ\to Hγ$ over a range of $μ\barμ$ collider energies. The amplitudes for this process receive tree level contributions and one-loop contributions, which are of comparable magnitude. The tree level amplitudes are dominated by helicity non-flip terms and the one-loop amplitudes are dominated by helicity flip terms. As a consequence, the interference terms between the tree level and one-loop contributions are negligible. For a 500 GeV $μ\barμ$ collider, the cross section for $Hγ$ associated production approaches 0.1 fb.

hep-ph↗

arXiv1993

The effects of a strongly interacting Higgs sector on $γ\,γ\rightarrow W_L^+\,W_L^-, Z_L^{\,0}\,Z_L^{\,0}$ scattering

We study the effects of a strongly interacting Higgs sector on the amplitudes for $γ\,γ\rightarrow W_L^+\,W_L^-, Z_L^{\,0}\,Z_L^{\,0}$ by unitarizing the $W_L^+\,W_L^-, Z_L^{\,0}\,Z_L^{\,0}, γ\,γ$ system using the $K$--matrix technique. Unitarization produces substantial corrections to the cross sections for gauge boson pair production by photon fusion when $m_H \agt 5-10\;$TeV.

hep-ph↗