Combined fits to the supersymmetric explanation of anomalous lepton-photon-missing E_T events

Details Combined fits to the supersymmetric explanation of anomalous lepton-photon-missing E_T events Combined fits to the supersymmetric explanation of anomalous lepton-photon-missing E_T events

2002-10-28

arxiv.org/abs/hep-ph/0210375v2

Phys.Lett.B551:343-350,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, v2 has preprint number corrected

Scientific paper

10.1016/S0370-2693(02)03049-6

The CDF experiment reported a lepton photon missing transverse energy (E_T) signal 3 sigma in excess of the Standard Model prediction in Tevatron Run I data. The excess can be explained by the resonant production of a smuon, which subsequently decays to a muon, a photon and a gravitino. Here, we perform combined fits of this model to the CDF gamma lepton missing E_T excess, the D0 measurement of the same channel and the CDF photon missing E_T channel. Although the rates of the latter two analyses are in agreement with the Standard Model prediction, our model is in good agreement with these data because their signal to background efficiency is low at the best-fit point. However, they help to constrain the model away from the best fit point.

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