Measurement of the yields of positively charged particles at an angle of 35° in proton interactions with nuclear targets at an energy of 50 GeV

• Published in: Physics of atomic nuclei Vol. 76; no. 10; pp. 1213 - 1218
• Main Authors: Ammosov, V. V., Antonov, N. N., Baldin, A. A., Viktorov, V. A., Gapienko, V. A., Gapienko, G. S., Golovin, A. A., Gres, V. N., Ivanilov, A. A., Koreshev, V. I., Korotkov, V. A., Mysnik, A. I., Prudkoglyad, A. F., Sviridov, Yu. M., Semak, A. A., Terekhov, V. I., Uglekov, V. Ya, Ukhanov, M. N., Chujko, B. V., Shimanskii, S. S.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.10.2013; Springer
• Subjects: Elementary Particles and Fields; Particle and Nuclear Physics; Physics; Physics and Astronomy; High Transverse Momentum; Atomic Nucleus; Copper Tungsten; Transverse Momentum; Proton Interaction
• ISSN: 1063-7788; 1562-692X
• DOI: 10.1134/S1063778813100037

Momentum spectra of cumulative particles in the region of high transverse momenta ( P T ) in pA → h + + X reactions were obtained for the first time. The experiment in which this was done was performed at the SPIN setup (Institute for High Energy Physics, Protvino) in a beam of 50-GeV protons interacting with C, Al, Cu, and W nuclei. Positively charged particles were detected at a laboratory angle of 35° and in the transverse-momentum range between 0.6 and 3.7 GeV/ c . A strong dependence of the particle-production cross section on the atomic number was observed. A comparison with the results of calculations based on the HIJING and UrQMD models was performed in the subcumulative region.