Darmstadt 2016 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 45: Postersession
HK 45.31: Poster
Mittwoch, 16. März 2016, 18:30–20:30, S1/05 22-24
Meson production in pd fusion to 3He X at proton beam momenta between pp = 1.60 GeV/c and pp = 1.74 GeV/c with WASA-at-COSY* — •Nils Hüsken, Florian Bergmann, Kay Demmich, Alfons Khoukaz, Karsten Sitterberg, Juliane Von Wrangel, and Lisa Wölfer for the WASA-at-COSY collaboration — Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, 48149 Münster, Deutschland
The production of pseudoscalar mesons in pd fusion to 3He X adresses
a wide range of interesting hadron physics topics.
While the reaction pd→ 3Heη has been studied in
great detail in the near threshold region, there still remain open questions
regarding the underlying production mechanism as well as recently observed
unexpected cross section structures at higher excess energies. As the WASA-at-COSY
experiment is perfectly suited to study the energy dependence of both total and
differential cross sections, a beam time was realized in May 2014 in order to
investigate the excess energy region of interest, covering 15 excess energies
ranging from Q ≈ 13.6 MeV to Q ≈ 80.9 MeV. This
dataset also allows the investigation of the energy dependence of various other
pd→ 3He X reactions, like the one-, two- and three-pion
production with high statistics. An overview of the possibilities this new
dataset provides will be given as well as the current status of the analyses
regarding these reactions.
*Supported by FFE program of the Forschungszentrum Jülich and the European
Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n
283286.