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HK: Physik der Hadronen und Kerne
HK 44: Electromagnetic and Hadronic Probes VII
HK 44.7: Talk
Thursday, March 11, 2004, 18:30–18:45, B
Analysis of Ds π± and Ds π+ π− Systems — •Marc Pelizäus — Institut für Experimentalphysik I, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum
The BABAR experiment located at the asymmetric e+e− collider PEP-II at
SLAC has recorded a data sample corresponding to an integrated luminosity
of 150 fb−1 since 1999. In April 2003 BABAR found the new
narrow resonance DsJ*(2317)± in Ds±π0 system.
Several suggestions for the classification of this new state below DK
threshold are discussed at the moment, one is the interpretation of the
DsJ*(2317)± as an exotic DK bound state. The investigation of
Ds±π±, Ds±π∓ and Ds±π+ π− could
contribute to this discussion. The analysis of these systems is described.
Supported by bmb+f (06BO9041).