Measuring the Higgs Branching Fraction into two Photons at Future Linear \ee Colliders

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dc.creatorBoos, E.
dc.creatorBrient, J. -C.
dc.creatorReid, D. W.
dc.creatorSchreiber, H. J.
dc.creatorShanidze, R.
dc.date2000-11-29
dc.date.accessioned2026-07-07T12:26:07Z
dc.date.available2026-07-07T12:26:07Z
dc.descriptionWe examine the prospects for measuring the \gaga branching fraction of a Standard Model-like Higgs boson with a mass of 120 GeV at the future TESLA linear \ee collider, assuming an integrated luminosity of 1 ab$^{-1}$ and center-of-mass energies of 350 GeV and 500 GeV. The Higgs boson is produced in association with a fermion pair via the Higgsstrahlung process \ee $\to ZH$, with $Z \to$ \qq or \nn, or the WW fusion reaction $e^+e^- \to ν_e \bar{ν_e} H$. A relative uncertainty on BF(\hgg) of~16% can be achieved in unpolarized \ee collisions at $\sqrt{s}$=~500 GeV, while for $\sqrt{s}$=~350 GeV the expected precision is slightly poorer. With appropriate initial state polarizations $Δ$BF(\hgg)/BF(\hgg) can be improved to 10%. If this measurement is combined with the expected error for the total Higgs width, a precision of 10% on the \gaga Higgs boson partial width appears feasible.
dc.description14 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0011366
dc.identifierhttp://arxiv.org/abs/hep-ph/0011366
dc.identifierEur.Phys.J.C19:455-461,2001
dc.identifierdoi:10.1007/s100520100636
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214782
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMeasuring the Higgs Branching Fraction into two Photons at Future Linear \ee Colliders
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