Münster 2011 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 31: Hadronenstruktur und -spektroskopie - Poster

HK 31.1: Poster

Mittwoch, 23. März 2011, 14:00–16:00, Foyer Chemie

Simulation of a Resonance Scan of the X(3872) for PANDA^* — •Martin Galuska, Thomas Geßler, Wolfgang Kühn, Stephanie Künze, Jens Sören Lange, Yutie Liang, David Münchow, Diego Semmler, Björn Spruck, Matthias Ullrich, Milan Wagner, and Marcel Werner — II. Physikalisches Institut, Universität Gießen

The charmonium-like state X(3872) was discovered by Belle (PRL 91(2003)262001) and has recently been discussed as a possible D⁰ D^*0 S-wave bound molecular state. As the X(3872) has a tentative quantum number assignment of J^P=1⁺, direct formation is not possible in e⁺ e⁻ collisions, but in p p collisions at PANDA. The poster shows results of MC simulations using the PandaRoot framework for the investigation of X(3872) decays via the channel X(3872)→ J/Ψ π⁺ π⁻. In the framework of the MC simulations a resonance scan using the cooled p-beam with a momentum resolution Δ p/p = 4· 10⁻⁵ was performed. Background was simulated using the dual parton model. The effect of final state radiation was considered. Results using GEANT3 and GEANT4 for particle transport are compared.

^* This work was supported in part by BMBF (06GI9107I) and the LOEWE-Zentrum HICforFAIR.