Nuclear dependence of single-hadron and dihadron production in {ital p}-{ital A} interactions at {radical}{ital s}=38.8 GeV
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- Fermilab, P.O. Box 500, Batavia, Illinois 60510 (United States)
- Northern Illinois University, DeKalb, Illinois 60115 (United States)
- Abilene Christian University, Abilene, Texas 79699 (United States)
- University of Chicago, Chicago, Illinois 60637 (United States)
- Lawrence Berkeley Laboratory and University of California, Berkeley, California 94720 (United States)
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- University of South Carolina, Columbia, South Carolina 29208 (United States)
- Institute of Physics, Academia Sinica, Taipei (Taiwan)
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.}
- OSTI ID:
- 397714
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 6 Vol. 54; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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