Forward production of charged pions with incident protons on nuclear targets at the CERN Proton Synchrotron

作者：Apollonio M; Artamonov A; Bagulya A; Barr G; Blondel A; Bobisut F; Bogomilov M; Bonesini M^*; Booth C; Borghi S; Bunyatov S; Burguet Castell J; Catanesi M G; Cervera Villanueva A; Chimenti P; Coney L; Di Capua E; Dore U; Dumarchez J; Edgecock R; Ellis M; Ferri F; Gastaldi U; Giani S; Giannini G; Gibin D; Gilardoni S; Gorbunov P; Goessling C; Gomez Cadenas J J; Grant A; Graulich J S; Gregoire G; Grichine V; Grossheim A

来源：Physical Review C, 2009, 80(3): 035208.

DOI：10.1103/PhysRevC.80.035208

Measurements of the double-differential pi(+/-) production cross section in the range of momentum 0.5 <= p <= 8.0 GeV/c and angle 0.025 <= theta <= 0.25 rad in collisions of protons on beryllium, carbon, nitrogen, oxygen, aluminum, copper, tin, tantalum, and lead are presented. The data were taken with the large-acceptance HAdRon Production (HARP) detector in the T9 beamline of the CERN Proton Synchrotron. Incident particles were identified by an elaborate system of beam detectors. Thin targets of 5% of a nuclear interaction length were used. The tracking and identification of the produced particles were performed using the forward system of the HARP experiment. Results are obtained for the double-differential cross sections d(2)sigma s/dp d Omega mainly at four incident proton beam momenta (3, 5, 8, and 12 GeV/c). Measurements are compared with the GEANT4 and MARS Monte Carlo generators. A global paametrization is provided as an approximation of all the collected datasets, which can serve as a tool for quick yield estimates.

• 出版日期2009-9