Signatures of massive sgoldstinos at hadron colliders

Details Signatures of massive sgoldstinos at hadron colliders Signatures of massive sgoldstinos at hadron colliders

2000-05-09

arxiv.org/abs/hep-ph/0005076v2

Nucl.Phys. B590 (2000) 287-305

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 6 figures. Corrected misprint, added references

Scientific paper

10.1016/S0550-3213(00)00504-6

In supersymmetric extensions of the Standard Model with a very light gravitino, the effective theory at the weak scale should contain not only the goldstino, but also its supersymmetric partners, the sgoldstinos. In the simplest case, the goldstino is a gauge-singlet and its superpartners are two neutral spin-0 particles, S and P. We study possible signals of massive sgoldstinos at hadron colliders, focusing on those that are most relevant for the Tevatron. We show that inclusive production of sgoldstinos, followed by their decay into two photons, can lead to observable signals or to stringent combined bounds on the gravitino and sgoldstino masses. Sgoldstino decays into two gluon jets may provide a useful complementary signature.

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