Phys. Rev. Lett. 83, 2128–2132 (1999)Search for Light Gluinos via Decays Containing π+π- or π0 from a Neutral Hadron Beam at FermilabReceived 18 March 1999; published in the issue dated 13 September 1999 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 R0→π+π-γ̃ and R0→π0γ̃ 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 3×10-10sec to as high as 10-3sec, assuming perturbative QCD production for the R0. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.2128
DOI:
10.1103/PhysRevLett.83.2128
PACS:
13.85.Rm, 14.80.Ly
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