Measuring the Luminosity of a gamma gamma Collider with gamma gamma -> l+ l- gamma Events

Details Measuring the Luminosity of a gamma gamma Collider with gamma gamma -> l+ l- gamma Events Measuring the Luminosity of a gamma gamma Collider with gamma gamma -> l+ l- gamma Events

2003-06-16

arxiv.org/abs/hep-ph/0306135v2

Eur.Phys.J.C32S1:143-150,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

Final version, accepted by journal

Scientific paper

10.1140/epjcd/s2003-01-011-7

The process gamma gamma -> l+ l- is highly suppressed when the total angular momentum of the two colliding photons is zero so that it cannot be used for luminosity determination. This configuration, however is needed for Higgs production at a photon collider. It will be shown that the process gamma gamma -> l+ l- gamma can be used in this case to measure the luminosity of a collider with a precision that is good enough not to limit the error on the partial decay width Gamma(H -> gamma gamma).

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