Lambda hyperons produced in central nucleus-nucleus interactions at 4.5 GeV/c momentum per incident nucleon

  • Transverse momenta and rapidities of Lambda 's produced in central nucleus-nucleus collisions at 4.5 GeV/c·u (C-C,...,O-Pb) were studied and compared with those from inelastic He-Li interactions at the same incident momentum. Polarization of the Lambda hyperons was found to be consistent with zero ( alpha P=-0.06=0.11 for Lambda 's from central collisions). An upper limit of the Lambda -bar / Lambda production ratio was estimated to be less than 4.5 x 10-3. The experiment was performed in a triggered streamer chamber.

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Author:M. Kh. AnikinaGND, Marek GaździckiORCiD, A. I. GolochvastovGND, L. Goncharov, K. Iovchev, Sergey Aleksandrovich Khorozov, E. Kuznetzova, Juris Lukstins, Edgar Okonov, T. Ostanievich, S. Sidorin, G. Vardenga, O. Balea, N. Nikirovich, Titus Corneliu Ponta, L. Chkhaidze, Tamar DjobavaORCiD, M. Despotashvili, I. Tuliani, E. Khusaimov, N. Nurgozin, B. Suleimenov, Ewa Skrzypczak, Teresa TymienieckaORCiDGND
Parent Title (German):Physical review letter
Publisher:The American Physical Society
Document Type:Article
Date of Publication (online):2005/10/04
Year of first Publication:1983
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2005/10/04
Page Number:4
First Page:1971
Last Page:1974
Source:Phys.Rev.Lett.50:1971-1974,1983, ©1983 The American Physical Society,
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht