APS » PROLA » Phys. Rev. C » Volume 47 » Issue 6

Phys. Rev. C 47, 2840 - 2845 (1993)

Measurement of dielectron production in niobium-niobium collisions at 1.05 GeV/nucleon
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S. Beedoe, J. Carroll, P. Force, J. Gordon, T. Hallman, G. Igo, P. N. Kirk, G. Krebs, A. Letessier-Selvon, L. Madansky, H. S. Matis, D. Miller, C. Naudet, G. Roche, L. S. Schroeder, P. Seidl, Z. F. Wang, R. Welsh, and A. Yegneswaran
University of California at Los Angeles, Los Angeles, California 90024
Université Blaise Pascal/Institut National de Physique Nucléaire et de Physique des Particules, 63177 Aubière CEDEX, France
The Johns Hopkins University, Baltimore, Maryland 21218
Louisiana State University, Baton Rouge, Louisiana 70803
Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
Northwestern University, Evanston, Illinois 60201
Continuous Electron Beam Accelerator Facility, Newport News, Virginia 23606

Received 11 February 1992

A dielectron signal for pair masses greater than Mπ is observed in Nb+Nb collisions at 1.05 GeV/nucleon beam kinetic energy. The invariant mass spectrum and the associated multiplicity distribution are presented. Comparisons are made with previous cross section measurements in p+Be and Ca+Ca.


©1993 The American Physical Society

URL: http://link.aps.org/abstract/PRC/v47/p2840
DOI: 10.1103/PhysRevC.47.2840
PACS: 25.75.+r

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