Frankfurt 2014 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 59: Hadronenstruktur und -spektroskopie

HK 59.2: Vortrag

Freitag, 21. März 2014, 14:30–14:45, HZ 1+2

Perspectives on Open Charm Physics with PANDA — •Elisabetta Prencipe and James Ritman for the PANDA collaboration — FZJ Juelich, Leo Brandt Strasse - 52428 Juelich

The experiment PANDA at FAIR (Facility for Antiproton and Ion Research) in Darmstadt (Germany) will investigate fundamental questions of hadron and nuclear physics in interactions of antiprotons with nucleons and nuclei. Gluonic excitations and the physics of hadrons with strange and charm quarks will be accessible with unprecedented accuracy, thereby allowing high precision tests of the strong interaction. In particular, the D{sJ}(2317)+ and D{sJ}(2460)+ are still of high interest 10 years after their discovery, because they can not be simply understood in term of potential models. In fact, the low statistics and lack of precision of the past experiments did not allow to clarify their nature. Recently LHCb at CERN have made progresses in this respect, but still not at the level of precision required in order to clarify the puzzle of the cs-bar spectrum. PANDA will be able to achieve a factor 20 higher mass resolution than attained at the B-factories, which is expected to be decisive on these and second-order open questions. The technique to evaluate the width from the excitation function of the cross section of the D{sJ} mesons will be presented, and full simulations performed with PandaRoot will be shown.