Supersymmetric-particle production at pp̅ collider energies

Reya, E. ; Roy, D. P. (1985) Supersymmetric-particle production at pp̅ collider energies Physical Review D - Particles, Fields, Gravitation and Cosmology, 32 (3). pp. 645-657. ISSN 1550-7998

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The recently observed hadronic single- and multijet events accompanied by large missing pT can be consistently explained by gluinos (g˜), produced via qq̅,gg→g˜ g˜ with an optimal mass of mg˜=35 to 45 GeV. This result agrees surprisingly well with theoretical predictions of the minimal N=1 supergravity model. Adopting the theoretically somewhat less appealing alternative where scalar quarks (q˜) are lighter than gluinos such that they are dominantly produced via qq̅,gg→q˜ q˜, the events can also be explained by scalar quarks in a similar mass range. Currently available data, including the observed jet properties, cannot meaningfully distinguish between these two mechanisms. In addition we present detailed predictions for cross sections and distributions in <ET>, pTmiss, pTjet, and invariant observed jet masses for gluino as well as scalar-quark production at present and forthcoming CERN pp̅ collider energies (√s =540 and 620 GeV). Realistic tests are suggested which would allow discrimination between gluinos and scalar quarks in the near future.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:42806
Deposited On:06 Jun 2011 12:54
Last Modified:06 Jun 2011 12:54

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