Nuclear Transparency in Large Momentum Transfer Quasielastic Scattering

Journal Article · Tue Dec 01 00:00:00 EST 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.81.5085· OSTI ID:670239

Mardor, I; Aclander, J; Alster, J; Kosonovsky, E; Mardor, Y; Navon, I; Piasetzky, E ^[1]; Durrant, S; Barton, D; Bunce, G; Carroll, A; Gushue, S; Makdisi, Y; Roser, T; Tanaka, M ^[2]; Christensen, N; Courant, H; Marshak, M; White, C ^[3]; Heppelmann, S ; Minor, E D; Wu, J ^[4]; Nicholson, H; Sutton, C S ^[5]; Russell, J ^[6]

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1. School of Physics and Astronomy, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978 (Israel)
2. Brookhaven National Laboratory, Upton, New York 11973 (United States)
3. Physics Department, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
4. Physics Department, Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
5. Mount Holyoke College, South Hadley, Massachusetts 01075 (United States)
6. Physics Department, University of Massachusetts Dartmouth, North Dartmouth, Massachusetts 02747 (United States)

We measured simultaneously pp elastic and quasielastic (p,thinsp2p) scattering in hydrogen, deuterium, and carbon for momentum transfers of 4.8 to 6.2 (GeV/c){sup 2} at incoming momenta of 5.9 and 7.5 GeV/c and center-of-mass scattering angles in the range {theta}{sub c.m.}=83.7{degree} {endash}90{degree} . The nuclear transparency is defined as the ratio of the quasielastic cross section to the free pp cross section. At incoming momentum of 5.9 GeV/c , the transparency of carbon decreases by a factor of 2 from {theta}{sub c.m.}{approx_equal}85{degree} to {theta}{sub c.m.}{approx_equal}89{degree} . At the largest angle the transparency of carbon increases from 5.9 to 7.5 GeV/c by more than 50{percent}. The transparency in deuterium does not depend on incoming momentum nor on {theta}{sub c.m.} . {copyright} {ital 1998} {ital The American Physical Society }

• DOE Contract Number: FG02-90ER40553
• OSTI ID: 670239
• Journal Information: Physical Review Letters, Vol. 81, Issue 23; Other Information: PBD: Dec 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
LINEAR MOMENTUM
PROTON-PROTON INTERACTIONS
PROTON-NEUTRON INTERACTIONS
HYDROGEN
DEUTERIUM
CARBON
MOMENTUM TRANSFER
CROSS SECTIONS