Why a Scalar Explanation of the L3 Events is Implausible

Details Why a Scalar Explanation of the L3 Events is Implausible Why a Scalar Explanation of the L3 Events is Implausible

1993-04-06

arxiv.org/abs/hep-ph/9304226v1

Phys.Lett.B309:365-370,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex 14 pages (1 figure not included). MIT preprint CTP-2191

Scientific paper

10.1016/0370-2693(93)90946-F

We investigate the question of whether an additional light neutral scalar can explain the $l^+ l^- \gamma \gamma$ events with high invariant mass photon pairs recently observed by the L3 collaboration. We parameterize the low energy effects of the unknown dynamics in terms of higher dimensional effective operators. We show that operators which allow for the scalar to be produced and decay into photon pairs will allow other observable processes that should have been seen in current experiments.

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