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HK: Fachverband Physik der Hadronen und Kerne
HK 47: Hadron Structure and Spectroscopy VIII
HK 47.5: Talk
Thursday, March 17, 2016, 15:15–15:30, S1/01 A5
XYZ rates with PANDA at FAIR — •Elisabetta Prencipe1 and Jens Soeren Lange2 for the PANDA collaboration — 1Forschungszentrum Jülich IKP1, Jülich (DE) — 2Justus-Liebig-Universität Giessen, Giessen (DE)
Narrow states have been recently observed, which do not fit into the predictions of static quark anti-quark potential, and thus they are often regarded as exotic states. The PANDA experiment at FAIR aims, among other topics of interest, to investigate XYZ states in the charmonium mass region in antiproton-proton collisions, with a very high rate (≤107 interactions per second), leading to a copious and statistically significant production of theses states with up to 104 per day, already on the first day of data taking with an average luminosity of L=1031 cm−2s−1. We present results from a complete MC simulation, and estimates on cross sections of the X(3872), the Y(4260) and the charged Z(3900). In particular new, yet unobserved states will be explained, for which the production in e+e− collisions, radiative decays or B meson decays is forbidden, e.g. by parity conservation, and production in p p collisions represents a unique possibility.