Bonn 2010 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 65: Hadronenstruktur und -spektroskopie XI
HK 65.5: Vortrag
Freitag, 19. März 2010, 15:15–15:30, HG IV
Study of decays of Ψ(3770) and Ψ(2S) into pp related channels — •Yutie Liang, Martin Galuska, Ingo Heller, Wolfgang Kühn, Jens Sören Lange, Qiang Wang, and Björn Spruck — II. Physikalisches Institut, Universität Gießen
The physics goals of PANDA include a
detailed investigation of the spectrum of charmonium. For this
physics program, charmonium production cross sections in pp
annihilation, which remain poorly measured, are obviously crucial,
both to evaluate luminosity requirements and to design detector.
With the data of BESIII, we plan to study the decay of Ψ(3770)
to pp, which will be very useful to estimate the cross
section of pp to Ψ(3770) in the PANDA experiment using
detailed balance. The cross section of pp to Ψ(3770)
could then be used to provide the lowest limit for the cross section of
pp to open charm which is important for the open charm
physics in PANDA. We also plan to study decays of Ψ(3770)
and Ψ(2S) to ppπ0(η). According to theory
studies, knowledge of the decay of charmonium into pp
related channels can be used to estimate the numerical scale of the
charmonium production cross section with certain theory models. The
study of these channels will be helpful for the estimate of
associated charmonium production in the PANDA experiment.
* This work was supported in part by WTZ-CHN(06-20) and BMBF(06GI9107I) and HICforFAIR.