Measurement of the $HZγ$ Coupling at the Future Linear \ee Collider

Details Measurement of the $HZγ$ Coupling at the Future Linear \ee Collider Measurement of the $HZγ$ Coupling at the Future Linear \ee Collider

2003-02-27

arxiv.org/abs/hep-ph/0302250v1

Eur.Phys.J.C30:337-344,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 6 figures

Scientific paper

10.1140/epjc/s2003-01304-4

We examine the prospects for measuring the $H Z \gamma$ coupling of a Standard Model-like Higgs boson with a mass between 120 and 160 GeV at the future TESLA linear \ee collider, assuming an integrated luminosity of 1 ab$^{-1}$ and a center-of-mass energy of 500 GeV. We consider the Higgs boson produced in association with $\nu_e \bar{\nu_e}$ via the $W W$ fusion reaction $e^+e^- \to \nu_e \bar{\nu_e} H$, followed by the rare decay into a $Z$ boson and a photon, $H \to Z \gamma$. Accounting for all main background contributions, different selection procedures are discussed. Uncertainties on the \hZg branching fraction of approximately 48% (27%, 44%) can be achieved in unpolarised \ee collisions for $M_H$ = 120 (140, 160) GeV. With appropriate initial state polarisations $\Delta$BF(\hZg)/BF(\hZg), or the precisions on the \hZg partial width, can be improved to 29% (17%, 27%) and provide valuable information on the $HZ\gamma$ coupling. We regard our results as a convincing confirmation of the great potential of a linear collider to access and reliably measure important parameters of the Higgs boson despite initially overwhelming background with final state signature similar to the signal events.

Affiliated with

Also associated with

No associations

Rating

Measurement of the $HZγ$ Coupling at the Future Linear \ee Collider does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Measurement of the $HZγ$ Coupling at the Future Linear \ee Collider, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of the $HZγ$ Coupling at the Future Linear \ee Collider will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-330878