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Light Gluino Search for Decays Containing pi+pi- or pi0 from a Neutral Hadron Beam at Fermilab | | A. Alavi-Harati et al
; KTeV Collaboration
; | | Date: |
20 Mar 1999 | | Journal: | Phys.Rev.Lett. 83 (1999) 2128-2132 | | Subject: | hep-ex | | Abstract: | We report on two null searches, one for the spontaneous appearance of $pi^+pi^-$ pairs, another for a single $pi^0$, 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 $R^0$, we exclude the decays $R^0 o pi^+pi^- ilde{gamma}$ and $R^0 o pi^0 ilde{gamma}$ for the masses of $R^0$ and $ ilde{gamma}$ in the theoretically allowed range. In the most interesting $R^0$ mass range, $leq 3 GeV/c^2$, we exclude $R^0$ lifetimes from $3 imes 10^{-10}$ seconds to as high as $10^{-3}$ seconds, assuming perturbative QCD production for the $R^0$. | | Source: | arXiv, hep-ex/9903048 | | Services: | Forum | Review | PDF | Favorites | |
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