Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-07-03
Phys.Lett. B416 (1998) 117-122
Physics
High Energy Physics
High Energy Physics - Phenomenology
Revised version to be published in Physics Letters B. Some minor changes were made
Scientific paper
10.1016/S0370-2693(97)01297-5
We show that the process $e^+e^- \to \gamma+$ missing energy, arising from the pair production of neutralinos, can probe the $\gamma-\tilde\gamma- \gravitino$ 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.
Datta Amitava
Datta Aseshkrishna
Kundu Anirban
Mukhopadhyaya Biswarup
Roy Sourov
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