Search for Light Gluinos via Decays Containing π+π or π0 from a Neutral Hadron Beam at Fermilab

A. Alavi-Harati et al. (KTeV Collaboration)
Phys. Rev. Lett. 83, 2128 – Published 13 September 1999
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Abstract

We report on two null searches, one for the spontaneous appearance of π+π pairs, another for a single π0, consistent with the decay of a long-lived neutral particle into hadrons and an unseen neutral particle. For the lowest level gluon-gluino bound state, known as the R0, we exclude the decays R0π+πγ̃ and R0π0γ̃ for the masses of R0 and γ̃ in the theoretically allowed range. In the most interesting R0 mass range, 3GeV/c2, we exclude R0 lifetimes from 3×1010sec to as high as 103sec, assuming perturbative QCD production for the R0.

  • Received 18 March 1999

DOI:https://doi.org/10.1103/PhysRevLett.83.2128

©1999 American Physical Society

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Vol. 83, Iss. 11 — 13 September 1999

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