反应 pp - > pp pi0 at 400 MeV (Anisotropy in the pion angular distribution of the reaction pp -> pp pi0 at 400 MeV)

P. Thorngren Engblom,S. Negasi Keleta,F. Cappellaro,B. Hoistad,M. Jacewicz,T. Johansson,I. Koch,S. Kullander,H. Pettersson,K. Schonning,J. Zlomanczuk,H. Calen,K. Fransson,A. Kupsc,P. Marciniewski,M. Wolke,C. Pauly,L. Demirors,W. Scobel,J. Stepaniak,J. Zabierowski,M. Bashkanov,H. Clement,O. Khakimova,F. Kren,T. Skorodko

from arxiv, Revtex 4 style, 5 pages 7 figures, PACS numbers:13.60.Le, 13.75.Cs, 21.45.+v, 25.10.+s

The reaction pp -> pp pi0 was studied with the WASA detector at the CELSIUS storage ring. The center of mass angular distribution of the pi0 was obtained by detection of the gamma decay products together with the two outgoing protons, and found to be anisotropic with a negative second derivative slope, in agreement with the theoretical predictions from a microscopic calculation.

翻译：在CELSIUS贮存环上与WASA探测器共同研究了反应 pp - > pp pi0,通过检测伽马衰变产品和两个离子质子,获得了Pi0质量角分布中心,发现该物质与两个离子质子一起具有厌食性,第二个衍生物斜度为负值,这与微观计算得出的理论预测一致。

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WASA：International Conference on Wireless Algorithms, Systems, and Applications。 Explanation：无线算法、系统和应用国际会议。 Publisher：Springer。 SIT： http://dblp.uni-trier.de/db/conf/wasa/