STUDY OF ANGULAR DISTRIBUTION OF HELIUM PROJECTILE FRAGMENTS IN INTERACTIONS OF 200 A GeV 32S IONS WITH EMULSION NUCLEI

M. I. Adamovich, M. M. Aggarwal, Y.A. Alexandrov, Nina P. Andreeva, Z.V. Anzon, R. Arora, F.A. Avetyan, S.K. Badyal, E. Basova, K.B. Bhalla

90 more authors

A. Bhasin, V.S. Bhatia, V.G. Bogdanov, V.I. Bubnov, T. H. Burnett, X. CAI, I.Ya. Chasnikov, L.P. Chernova, Mikhail Mikhailovich Chernyavsky, G.Z. Eligbaeva, L.E. Eremenko, A. Sh. Gaitinov, Eberhard Ganssauge, S. Garpman, S. Gerassimov, J. G. Grote, Kadyr G. Gulamov, Shailendra Kumar Gupta, V.K. Gupta, Harry H. Heckman, Hao Huang, B. Jakobsson, B. Judek, L. Just, S. K. Kachroo, G.S. Kalyachkina, E.K. Kanygina, M. Karabová, Gautam Kaul, SUNEETA KITROO, S. P. Kharlamov, S.A. Krasnov, S. Kulikova, V. Kumar, P. Lal, V.G. Larionova, V. N. Lepetan, L.S. LIU, S. Lokanathan, J. Lord, L.S. LUKICHEVA, S. Luo, T.N. MAKSIMKINA, Lalit Kumar Mangotra, N.A. Marutyan, N.V. Maslennikova, I. S. Mittra, S. Mookerjee, H. Nasrulaeva, S.H. Nasyrov, Vadim Sh. Navotny, Joakim Ingemar Nystrand, G. I. Orlova, Ingvar Otterlund, H. S. Palsania, N. G. Peresadko, N.V. Petrov, V.A. Plyushchev, D. A. Qarshiev, W.Y. Qian, Yangyang Qin, R. Raniwala, Sudhir Raniwala, N.K. Rao, V. Rappoport, J.T. Rhee, Nasir Sh. Saidkhanov, N.A. Salmanova, L.G. Sarkisova, V. R. Sarkisyan, G.S. Shabratova, Ts.I. Shakhova, S. N. Shpilev, D. Skelding, Kaj Söderström, Z.I. Solovjeva, Evert Anders Stenlund, E. L. Surin, L.N. Svechnikova, K.D. Tolstov, Monika Tóthová, M.I. Tretyakova, T.P. Trofimova, U. I. Tuleeva, S. Vokál, H. Q. WANG, Z.Q. WENG, R. Jeffrey Wilkes, Yin Xia, G. F. Xu

1993

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DOI 10.1142/s0217732393000039

Data confidence 70 medium

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It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

This paper presents data on the emission of helium fragments due to break up of 200 A GeV 32S ions in collision with emulsion nuclei. A total of 499 minimum bias events have been studied in an emulsion stack and 97 events in emulsion chambers. Emission angles of He fragments have been measured with high precision. This data has been compared with data of breakup of heavier as well as lighter projectiles and we observe that the value of the momentum spread, σ(p), increases with increasing projectile mass. The bulk part of the helium emission is consistent with a single source for helium fragments with an average excitation energy of (9.1±0.9) MeV. A tail of a few (<1%) He fragments with higher momenta is observed.