Freiburg 1999 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 18: Theorie III
HK 18.6: Talk
Tuesday, March 23, 1999, 15:15–15:30, A
Exotic Hybrid Mesons in Nucleon-Antinucleon Annihilation — •Thomas Gutsche, Oliver Haug, and Amand Faessler — Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen
We have estimated the branching ratios for the decay and production of QQg hybrid mesons in antinucleon-nucleon annihilation, using a microscopic model with constituent quarks Q and gluons g. We focus on the isovector hybrid with quantum numbers JPC=1−+ and discuss a possible hybrid interpretation of the exotic meson resonance recently observed by Crystal Barrel in p n annihilation reactions.