Light-gravitino production at hadron colliders
- Astroparticle Physics Group, Houston Advanced Research Center (HARC), The Mitchell Campus, The Woodlands, Texas 77381 (United States)
- Bonner Nuclear Lab, Department of Physics, Rice University, 6100 Main Street, Houston, Texas 77005 (United States)
- Center for Theoretical Physics, Department of Physics, Texas AM University, College Station, Texas 77843-4242, Academy of Athens, Chair of Theoretical Physics, Division of Natural Sciences 28 Panepistimiou Avenue, 10679 Athens (Greece)
- University and INFN, Bologna, Italy, CERN, 1211 Geneva 23 (Switzerland)
We consider the production of gravitinos ({tilde G}) in association with gluinos ({tilde g}) or squarks ({tilde q}) at hadron colliders, including the three main subprocesses: q{bar q}{r_arrow}{tilde g}{tilde G}, and qg{r_arrow}{tilde q}{tilde G}, and gg{r_arrow}{tilde g}{tilde G}. These channels become enhanced to the point of being observable for sufficiently light gravitino masses (m{sub {tilde G}}{lt}10{sup {minus}4}eV), as motivated by some supersymmetric explanations of the Collider Detector at Fermilab ee{gamma}{gamma}+E{sub T,miss} event. The characteristic signal of such events would be monojets, as opposed to dijets obtained in the more traditional supersymmetric process p{bar p}{r_arrow}{tilde g}{tilde g}. Searches for such events at the Fermilab Tevatron can impose lower limits on the gravitino mass. In the appendixes, we provide a complete set of Feynman rules for the gravitino interactions used in our calculation. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 566128
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 57; ISSN 0556-2821; ISSN PRVDAQ
- Country of Publication:
- United States
- Language:
- English
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