Higgs Boson Discovery Potential of LHC in the Channel $pp \toγγ+jet$

Details Higgs Boson Discovery Potential of LHC in the Channel $pp \toγγ+jet$ Higgs Boson Discovery Potential of LHC in the Channel $pp \toγγ+jet$

1998-05-15

arxiv.org/abs/hep-ph/9805341v2

Phys.Lett. B431 (1998) 410-419

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages including 6 figures, LaTeX, use epsfig.sty. To appear in Phys.Lett.B. In this replacement minor LaTeX improvements ar

Scientific paper

10.1016/S0370-2693(98)00547-4

We discuss the SM Higgs discovery potential of LHC in the reaction $pp\to H+ jet\to\gamma\gamma+jet$ when the jet is observed at sufficiently high $E_t$ to be reliably identified. We conclude that this channel gives promising discovery possibilities for the Higgs boson mass range 100-140 GeV, during LHC operation at a low luminosity. With 30 fb$^{-1}$ of accumulated data and for $M_H=120$ GeV about 100 signal events could be observed with the number of background events larger by a factor of 2 only, showing a signal significance $S/\sqrt{B}\sim 7$. We use the difference of distributions in the partonic subprocess energy $\sqrt{\hat s}$ for the signal and background for a better separation of the signal.

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