Measuring the Higgs to Photon-Photon Branching Ratio at the Next Linear $e^+e^-$ Collider

Details Measuring the Higgs to Photon-Photon Branching Ratio at the Next Linear $e^+e^-$ Collider Measuring the Higgs to Photon-Photon Branching Ratio at the Next Linear $e^+e^-$ Collider

1996-10-18

arxiv.org/abs/hep-ph/9610417v1

ECONF C960625:LTH104,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, full postscript file also available via anonymous ftp at ftp://ucdhep.ucdavis.edu/gunion/htogamgam_sm96.ps To appear

Scientific paper

We examine the prospects for measuring the photon-photon branching ratio of a Standard-Model-like Higgs boson ($h$) at the Next Linear $e^+e^-$ Collider when the Higgs boson is produced via $W^+W^-$--fusion: $e^+e^-\to\nu_e \bar\nu_e h$. In particular, we study the accuracy of such a measurement and the statistical significance of the associated signal as a function of the electromagnetic calorimeter resolution and the Higgs boson mass. We compare results for the $W^+W^-$--fusion production/measurement mode with the results obtained for the $e^+e^-\rightarrow Z^*\rightarrow Z h$ production/measurement mode in a parallel earlier study.

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