1999/03/20 by A. Alavi-Harati et al, A. Alavi-Harati, I. F. Albuquerque +85 · 22 citations
Physics and Astronomy · #Beam (structure) #Elementary particle #Fermilab #Hadron #Neutral particle #Particle decay #Particle physics theoretical and experimental studies #Perturbative QCD #Quantum Chromodynamics and Particle Interactions #Quantum and Classical Electrodynamics #Quantum chromodynamics #Quarkonium #hep-ex
paper · pdf · doi:10.1103/physrevlett.83.2128
published in Physical Review Letters 83(11), 2128-2132 (American Physical Society) · 15 pages, 7 figures
arxiv created 1999/03/20 · openalex publication_date 1999/09/13 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report on two null searches, one for the spontaneous appearance of \ensuremathπ+\ensuremathπ^\ensuremath- pairs, another for a single \ensuremathπ0, 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\ensuremath→\ensuremathπ+\ensuremathπ^\ensuremath-\stackrel\ifmmode \else \~\fi\ensuremathγ and R0\ensuremath→\ensuremathπ0\stackrel\ifmmode \else \~\fi\ensuremathγ for the masses of R0 and \stackrel\ifmmode \else \~\fi\ensuremathγ in the theoretically allowed range. In the most interesting R0 mass range, \ensuremath≤3GeV/c2, we exclude R0 lifetimes from 3\ifmmode×\else\texttimes\fi10^\ensuremath-10sec to as high as 10^\ensuremath-3sec, assuming perturbative QCD production for the R0.