Publications (2)0 Total impact
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ABSTRACT: We consider the scattering of fermions off antifermions with spin 1/2 and
3/2. Starting from helicity partial-wave scattering amplitudes we derive
transformations that eliminate all kinematical constraints. Such amplitudes are
expected to satisfy partial-wave dispersion relations and therefore provide a
suitable basis for data analysis and the construction of effective field
theories. Our derivation relies on a decomposition of the various scattering
amplitudes into suitable sets of invariant functions.
06/2011;
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PANDA Collaboration,
W. Erni,
I. Keshelashvili,
B. Krusche,
M. Steinacher,
Y. Heng,
Z Liu,
H Liu,
X Shen,
O. Wang, [......],
P. Buehler,
A Gruber,
P. Kienle,
J. Marton,
E. Widmann,
J. Zmeskal, M. F. M. Lutz,
B. Pire,
O. Scholten,
R. Timmermans
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ABSTRACT: To study fundamental questions of hadron and nuclear physics in interactions of antiprotons with nucleons and nuclei, the universal PANDA detector will be built. Gluonic excitations, the physics of strange and charm quarks and nucleon structure studies will be performed with unprecedented accuracy thereby allowing high-precision tests of the strong interaction. The proposed PANDA detector is a state-of-the art internal target detector at the HESR at FAIR allowing the detection and identification of neutral and charged particles generated within the relevant angular and energy range. This report presents a summary of the physics accessible at PANDA and what performance can be expected. Comment: 216 pages
03/2009;