Energy dependence of the near-threshold total cross-section for the pp→ppη′ reaction

Authors :: D. Grzonka
Magnus Wolke
T. Sefzick
H.-H. Adam
L. Jarczyk
A. Khoukaz
T. Lister
P. Wuestner
W. Zipper
W. Oelert
A. Strzałkowski
K. Kilian
N. Lang
Paweł Moskal
C. Quentmeier
M. Siemaszko
M. Koehler
S. Sewerin
V. Baru
P. Kowina
A. Budzanowski
Alexander Evgenyevich Kudryavtsev
G. Schepers
Jerzy Smyrski
R. Santo
Johann Haidenbauer
J. T. Balewski
Source :: BASE-Bielefeld Academic Search Engine
Publication Year :: 2000
Publisher :: Elsevier BV, 2000.
Abstract: Total cross sections for the pp --> pp eta' reaction have been measured in the excess energy range from Q = 1.53 MeV to Q = 23.64 MeV. The experiment has been performed at the internal installation COSY-11 using a stochastically cooled proton beam of the COoler SYnchrotron COSY and a hydrogen cluster target. The determined energy dependence of the total cross section weakens the hypothesis of the S-wave repulsive interaction between the eta' meson and the proton. New data agree well with predictions based on the phase-space distribution modified by the proton-proton final-state-interaction (FSI) only.<br />Comment: 12 pages, 1 table, 4 figures

Subjects :: Physics
Nuclear and High Energy Physics
Range (particle radiation)
Proton
Hydrogen
Meson
Nuclear Theory
chemistry.chemical_element
Synchrotron
law.invention
Nuclear physics
Cross section (physics)
chemistry
law
Physics::Accelerator Physics
Nuclear Experiment
Energy (signal processing)
Beam (structure)

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