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arXiv · hep-ph/9707239

Testing Gauge-Gravitino Coupling in Gauge-Mediated Supersymmetry Breaking Through Single Photon Events

Amitava Datta·Aseshkrishna Datta·Anirban Kundu·Biswarup Mukhopadhyaya·Sourov Roy
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Abstract

We show that the process $e^+e^- \to γ+$ missing energy, arising from the pair production of neutralinos, can probe the $γ-\tildeγ- \gravitino$ as well as the $Z-\tilde Z-\gravitino$ couplings in Gauge Mediated Supersymmetry Breaking models. This enables one to study the mutual relationship of the Goldstino couplings of the different gauginos, a feature whose testability has not been emphasized so far. The Standard Model backgrounds get suppresed with the use of a right polarized electron beam. The energy and angular distribution of the emitted photon can distinguish such models from the minimal supersymmetric theory and its variants.

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Amitava Datta, Aseshkrishna Datta, Anirban Kundu, Biswarup Mukhopadhyaya, Sourov Roy. 1997-10-27. Testing Gauge-Gravitino Coupling in Gauge-Mediated Supersymmetry Breaking Through Single Photon Events. https://doi.org/10.1016/s0370-2693(97)01297-5

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