Studies of the out-of-plane emission of pions in symmetric heavy-ion collisions
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Output type: Journal article
Author list: Brill D, Beckerle P, Bormann C, Schwab E, Shin Y, Strobele H, Baltes P, Muntz C, Oeschler H, Sturm C, Wagner A, Barth R, Cieslak M, Debowski M, Grosse E, Koczon P, Mang M, Miskowiec D, Schicker R, Senger P, Kohlmeyer B, Puhlhofer F, Speer J, Volkel K, Walus W
Publisher: Springer Verlag
Publication year: 1997
Journal: Zeitschrift für Physik A Hadrons and Nuclei (0939-7922)
Volume number: 357
Issue number: 2
Start page: 207
End page: 213
Number of pages: 7
ISSN: 0939-7922
eISSN: 1431-5831
Languages: English-Great Britain (EN-GB)
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Open access status: closed
Abstract
Triple differential cross-sections of midrapidity pions from Bi-209 + Bi-209 collisions were measured with the Kaon Spectrometer at SIS at incident energies of 400, 700 and 1000 AMeV. The azimuthal emission pattern of the pions has been investigated in dependence of beam energy and impact parameter. An enhanced emission of pions perpendicular to the reaction plane is observed. The strength of the anisotropy increases with beam energy and pion transverse momentum. In contrast to the nucleons the anisotropy varies only little with the impact parameter. No difference in the behaviour of positive and negative pions is observed.
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