[SLAC] [SLAC Pubs and Reports] SLAC-PUB-7445Looking for Exotic Multiquark States in Nonleptonic B Decays Abstract states taken by the CLEO collaboration suggest that a sizeable fraction of the nonleptonic decays may consist of the $J/\psi\, \Lambda \,\overline p$ three body final state, corresponding to a distinct enhancement in the inclusive $J/\psi$ momentum distribution. The kinematical boundary of this structure corresponds to the case where the $J/\psi$ recoils nearly monoenergetically in the $B$ rest system against a partner having mass of $\simeq 2$~ GeV. This may allow the observation of a $\Lambda-\overline p $ bound state near or just below threshold; \ie, strange baryonium, even if the production rate is small. Using a phase space approach to the $B$ meson decay, we study the $J/\psi$ momentum distribution and the effect of baryonium formation. We also discuss the possible observation of pentaquarks and hadronically-bound $J/\psi$ by the observation of monoenergetic baryons in these decays. (Equations render on Windows, Mac OS, AIX, Linux, Solaris, and IRIX with the techexplorer plug-in.) Full Text PDF slac-pub-7445 (815 KB) Compressed PostScript slac-pub-7445 (2.34 MB) Alternate download methods: old, ancient* *download methods - technical info techexplorer slac-pub-7445 (4.06 KB) More Information Full bibliographic data for this document, including its complete author list, is (or soon will be) available from SLAC's SPIRES-HEP Database. Please report problems with this file to posting@slac.stanford.edu. The SLAC preprint inventory is provided by the SLAC Technical Publications Department. Page generated 04 Apr 2001 @ 15:11 PDT by htmlme.pl
states taken by the CLEO collaboration suggest that a sizeable fraction of the nonleptonic decays may consist of the $J/\psi\, \Lambda \,\overline p$ three body final state, corresponding to a distinct enhancement in the inclusive $J/\psi$ momentum distribution. The kinematical boundary of this structure corresponds to the case where the $J/\psi$ recoils nearly monoenergetically in the $B$ rest system against a partner having mass of $\simeq 2$~ GeV. This may allow the observation of a $\Lambda-\overline p $ bound state near or just below threshold; \ie, strange baryonium, even if the production rate is small. Using a phase space approach to the $B$ meson decay, we study the $J/\psi$ momentum distribution and the effect of baryonium formation. We also discuss the possible observation of pentaquarks and hadronically-bound $J/\psi$ by the observation of monoenergetic baryons in these decays. (Equations render on Windows, Mac OS, AIX, Linux, Solaris, and IRIX with the techexplorer plug-in.)
(Equations render on Windows, Mac OS, AIX, Linux, Solaris, and IRIX with the techexplorer plug-in.)
PDF slac-pub-7445 (815 KB) Compressed PostScript slac-pub-7445 (2.34 MB) Alternate download methods: old, ancient* *download methods - technical info techexplorer slac-pub-7445 (4.06 KB)
Full bibliographic data for this document, including its complete author list, is (or soon will be) available from SLAC's SPIRES-HEP Database.