Mainz 2022 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 31: Hadron Structure and Spectroscopy V
HK 31.4: Vortrag
Dienstag, 29. März 2022, 17:00–17:15, HK-H8
Feasibility study of predicted decay channels of a hybrid charmonium candidate with PANDA — •Áron Kripkó, Markus Moritz, and Kai-Thomas Brinkmann for the PANDA collaboration — II. Physikalisches Institut, Justus Liebig Universität Gießen, 35392 Gießen, Germany
The PANDA experiment will be one of the key experiments at FAIR, which is currently under construction in Darmstadt, Germany. It will be a fixed-target experiment using an antiproton beam with beam momenta between 1.5 GeV/c and 15 GeV/c.
One of the main goals of PANDA is the detailed investigation of the spectrum of charmonia and charmonium-like hybrids. Compared to the the light meson spectrum, the charmonium spectrum is well separated, providing a clean environment to search for non-conventional states. States with exotic JPC can be made in associated formation processes: pp→ mh, where m is a light meson (π, η) and h is a charmonium hybrid.
Lattice QCD calculations predict the ground-state hybrid charmonium to be a spin exotic with quantum numbers of JPC=1−+ at a mass of around 4.3 GeV/c2. Its width is expected to be around 20 MeV/c2 due to the dynamical suppression of its decay into open charm.
The talk will present a preliminary feasibility study for a measurement of the most probable decay channels of this hybrid charmonium candidate performed with PANDARoot, the common simulation framework for such studies of the PANDA experiment.
This work is supported by HFHF and BMBF.