Comparison of large-angle production of charged pions with incident protons on cylindrical long and short targets

Journal Article · Tue Dec 15 00:00:00 EST 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.065204· OSTI ID:21296625

Apollonio, M; Chimenti, P; Giannini, G ^[1]; 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; Tsukerman, I; Wiebusch, C; Zucchelli, P ^[2]; Bagulya, A; Grichine, V ^[3]

---

1. Universita degli Studi e Sezione INFN, Trieste (Italy)
2. CERN, Geneva (Switzerland)
3. P. N. Lebedev Institute of Physics (FIAN), Russian Academy of Sciences, Moscow (Russian Federation)

The HARP Collaboration has presented measurements of the double-differential {pi}{sup {+-}} production cross section in the range of momentum 100 MeV/c{<=}p{<=}800 MeV/c and angle 0.35 rad{<=}{theta}{<=}2.15 rad with proton beams hitting thin nuclear targets. In many applications the extrapolation to long targets is necessary. In this article the analysis of data taken with long (one interaction length) solid cylindrical targets made of carbon, tantalum, and lead is presented. The data were taken with the large-acceptance HARP detector in the T9 beam line of the CERN proton synchrotron. The secondary pions were produced by beams of protons with momenta of 5, 8, and 12GeV/c. The tracking and identification of the produced particles were performed using a small-radius cylindrical time projection chamber placed inside a solenoidal magnet. Incident protons were identified by an elaborate system of beam detectors. Results are obtained for the double-differential yields per target nucleon d{sup 2}{sigma}/dpd{theta}. The measurements are compared with predictions of the MARS and GEANT4 Monte Carlo simulations.

• OSTI ID: 21296625
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 80, Issue 6; Other Information: DOI: 10.1103/PhysRevC.80.065204; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CROSS SECTIONS
CYLINDRICAL CONFIGURATION
DATA ANALYSIS
EXTRAPOLATION
FORECASTING
INTERACTIONS
MAGNETS
MEV RANGE 100-1000
MONTE CARLO METHOD
PARTICLE PRODUCTION
PIONS MINUS
PIONS PLUS
PROTON BEAMS
PROTONS
SOLIDS
SYNCHROTRONS
TANTALUM
TIME PROJECTION CHAMBERS