In the frame of a systematic study of hadron-nucleus interactions performed at the Serpukhov accelerator (CERN-IHEP 5th experiment), semicoherent elastic scattering on carbon pi- C12 -> pi- C12(4.44 MeV) was investigated with 25 and 40 GeV/c incident pions. The experimental data were obtained with a counter technique, looking at the coincidence between the scattered pion and the 4.44 MeV photon from the JP = 2+ carbon excited state detected by a NaI counter. The value obtained for the integrated cross section at 40 GeV/c in the 0.0032 ⩽ |t| ⩽ 0.27 (GeV/c)2 four-momentum transfer range is σ = 1.16 ± 0.11 mb. According to the theoretical models, this t-range at 40 GeV/c covers more than 99% of the angular distribution, so the above value almost corresponds to the total semicoherent elastic cross section.
Semicoherent elastic pion-carbon scattering at 25 and 40 GeV/c / P.L. Frabetti, G. Bellini, T. Bettinazzi, M. Di Corato, E. Meroni, S. Micheletti, F. Palombo, F. Ragusa, P.G. Rancoita, G. Vegni, L. Chernenko, Y. Ivanshin, I. Pisarev, S. Sychkov, A. Tyapkin, V. Vishnyakov, O. Zaimidoroga, P.F. Manfredi. - In: NUCLEAR PHYSICS. B. - ISSN 0550-3213. - 158:1(1979), pp. 57-70. [10.1016/0550-3213(79)90187-1]
Semicoherent elastic pion-carbon scattering at 25 and 40 GeV/c
G. Bellini;M. Di Corato;E. Meroni;S. Micheletti;F. Palombo;F. Ragusa;G. Vegni;
1979
Abstract
In the frame of a systematic study of hadron-nucleus interactions performed at the Serpukhov accelerator (CERN-IHEP 5th experiment), semicoherent elastic scattering on carbon pi- C12 -> pi- C12(4.44 MeV) was investigated with 25 and 40 GeV/c incident pions. The experimental data were obtained with a counter technique, looking at the coincidence between the scattered pion and the 4.44 MeV photon from the JP = 2+ carbon excited state detected by a NaI counter. The value obtained for the integrated cross section at 40 GeV/c in the 0.0032 ⩽ |t| ⩽ 0.27 (GeV/c)2 four-momentum transfer range is σ = 1.16 ± 0.11 mb. According to the theoretical models, this t-range at 40 GeV/c covers more than 99% of the angular distribution, so the above value almost corresponds to the total semicoherent elastic cross section.
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