Abstract

We analyze the prospects for discovering supersymmetry at the Fermilab\nTevatron and CERN LEP colliders in the scenario that the lightest\nsupersymmetric particle is a gravitino of mass < 1 keV. We consider in\nparticular the case that the lightest neutralino has a nearly 100% branching\nfraction into gravitino + photon within the detector. This implies that\nsupersymmetric events should contain both missing (transverse) energy and two\nenergetic photons. Therefore one can search for supersymmetry simply through\ninclusive production of superpartners. We consider the exclusion and reach\ncapabilities of the Tevatron in exploring the supersymmetric parameter space,\nand study the efficiencies which can be achieved in this search. We also\nconsider the discovery reach and backgrounds at LEP with $\\sqrt{s} =$ 160, 175,\nand 190 GeV.\n

Keywords

GravitinoTevatronParticle physicsPhysicsSupersymmetryNeutralinoFermilabLarge Hadron ColliderSuperpartnerLightest Supersymmetric ParticleNuclear physicsSupergravity

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Publication Info

Year
1996
Type
article
Volume
54
Issue
9
Pages
5395-5411
Citations
151
Access
Closed

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Stephen P. Martin, S. Mrenna, S. Ambrosanio et al. (1996). Search for supersymmetry with a light gravitino at the Fermilab Tevatron and CERN LEP colliders. Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields , 54 (9) , 5395-5411. https://doi.org/10.1103/physrevd.54.5395

Identifiers

DOI
10.1103/physrevd.54.5395