Phys. Rev. C
65,
064001
(2002)
[8 pages]
Measurement of the pp⃗ppπ0 reaction at 850 MeV/c and partial wave cross sections
M. Betigeri et al.
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M. Betigeri9, J. Bojowald1, A. Budzanowski4, A. Chatterjee9, J. Ernst7, L. Freindl4, D. Frekers8, W. Garske8, K. Grewer8, A. Hamacher1, J. Ilieva1,5, L. Jarczyk3, K. Kilian1, S. Kliczewski4, W. Klimala1,3, D. Kolev6, T. Kutsarova5, J. Lieb10, H. Machner1, A. Magiera3, R. Maier1, H. Nann11, J. Niskanen12, D. Prasuhn1, L. Pentchev5, D. Protić1, B. Razen1, P. von Rossen1, B. J. Roy9, R. Siudak4, A. Strzałkowski3, R. Tsenov6, and K. Zwoll2
1Institut für Kernphysik, Forschungszentrum Jülich, Jülich, Germany 2Zentrallabor für Elektronik, Forschungszentrum Jülich, Jülich, Germany 3Institute of Physics, Jagellonian University, Krakow, Poland 4Institute of Nuclear Physics, Krakow, Poland 5Institute of Nuclear Physics and Nuclear Energy, Sofia, Bulgaria 6Physics Faculty, University of Sofia, Sofia, Bulgaria 7Institut für Strahlen- und Kernphysik der Universität Bonn, Bonn, Germany 8Institut für Kernphysik, Universität Münster, Münster, Germany 9Nuclear Physics Division, BARC, Bombay, India 10Physics Department, George Mason University, Fairfax, Virginia 11Physics Department, Indiana University, Bloomington, Indiana 12Department of Physics, University of Helsinki, Finland
Received 21 August 2001; revised 19 February 2002; published 23 May 2002
A stack of annular detectors made of high purity germanium was used to measure pp⃗ppπ0 differential cross sections at a beam momentum of 850 MeV/c. A total cross section of σ=9.1±1.1 μb is deduced. The fitted distribution of different partial waves to the world total cross section data and to the present differential cross sections favors an approach without low-energy approximations, with the standard value for the final state interaction scattering length, and an important contribution from an intermediate NΔ state.
© 2002 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevC.65.064001
DOI:
10.1103/PhysRevC.65.064001
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