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Author Brown, C. N. ♦ Cooper, W. E. ♦ Mishra, C. S. ♦ Kaplan, D. M. ♦ Preston, R. S. ♦ Tanikella, V. ♦ Isenhower, L. D. ♦ Sadler, M. E. ♦ Lederman, L. M. ♦ Schub, M. H. ♦ Gidal, G. ♦ Kowitt, M. S. ♦ Luk, K. B. ♦ Carey, T. A. ♦ Leitch, M. J. ♦ McGaughey, P. L. ♦ Moss, J. M. ♦ Peng, J. C. ♦ Childers, R. L. ♦ Darden, C. W. ♦ Teng, P. K.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ PROTON REACTIONS ♦ PARTICLE PRODUCTION ♦ PAIR PRODUCTION ♦ HADRONS ♦ TRANSVERSE MOMENTUM ♦ MASS ♦ CROSS SECTIONS ♦ MULTIPLE SCATTERING ♦ PARTONS ♦ FRAGMENTATION ♦ GEV RANGE 10-100
Abstract We present a measurement of the W-to-Be per-nucleon cross-section ratio, {ital R}{sub W/Be}, for single hadrons and for opposite-sign hadron pairs produced in {ital p}-{ital A} collisions at {radical}{ital s}=38.8 GeV. The data fill in regions of intermediate transverse momentum and dihadron mass that previously have revealed cross-section enhancements for scattering from nuclear targets. When combined with previous measurements, the new results help delineate the dependence of nuclear effects on the kinematic variables {ital p}{sub {ital t}}, {ital m}, and {radical}{ital s}. Both the single-hadron and hadron-pair enhancements in {ital R}{sub W/Be} seen at intermediate values of {ital p}{sub {ital t}} and mass decrease with increasing {radical}{ital s}, consistent with a multiple-scattering model of parton scattering. {copyright} {ital 1996 The American Physical Society.}
ISSN 05562813
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-12-01
Publisher Place United States
Journal Physical Review, C
Volume Number 54
Issue Number 6


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