Large-angle production of charged pions by 3-12.9 GeV/c protons on beryllium, aluminium and lead targets

Large-angle production of charged pions by 3-12.9 GeV/c protons on beryllium, aluminium and lead targets

Measurements of the double-differential π± production cross-section in the range of momentum 100 MeV/c p<∈800 MeV/c and angle 0.35 rad∈ θ<∈ 2.15 rad in proton-beryllium, proton-aluminium and proton-lead collisions are presented. The data were taken with the HARP detector in the T9 beam...

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Bibliografiske detaljer
Main Authors: Catanesi, MG, Radicioni, E, Edgecock, R, Ellis, M, Soler, F, Goessling, C, Bunyatov, S, Krasnoperov, A, Popov, B, Serdiouk, V, Tereschenko, V, Di Capua, E, Vidal-Sitjes, G, Artamonov, A, Giani, S, Gilardoni, S, Gorbunov, P, Grant, A, Grossheim, A, Ivanchenko, A, Ivanchenko, V, Kayis-Topaksu, A, Panman, J, Papadopoulos, I, Tcherniaev, E
Format: Journal article
Sprog:English
Udgivet: 2008
Beskrivelse
Summary:Measurements of the double-differential π± production cross-section in the range of momentum 100 MeV/c p<∈800 MeV/c and angle 0.35 rad∈ θ<∈ 2.15 rad in proton-beryllium, proton-aluminium and proton-lead collisions are presented. The data were taken with the HARP detector in the T9 beam line of the CERN PS. The pions were produced by proton beams in a momentum range from 3 GeV/c to 12.9 GeV/c hitting a target with a thickness of 5% of a nuclear interaction length. The tracking and identification of the produced particles was performed using a small-radius cylindrical time projection chamber (TPC) placed inside a solenoidal magnet. Incident particles were identified by an elaborate system of beam detectors. Results are obtained for the double-differential cross-sections d2σ/dpdθ at six incident proton beam momenta (3 GeV/c, 5 GeV/c, 8 GeV/c, 8.9 GeV/c (Be only), 12 GeV/c and 12.9 GeV/c (Al only)) and compared to previously available data. © 2008 Springer-Verlag / Società Italiana di Fisica.

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