Pion elastic scattering from polarized [sup 13]C in the energy region of the [ital P][sub 33] resonance

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.897· OSTI ID:7014897

Yen, Y; Brinkmoeller, B; Dehnhard, D; Franey, M A; Sterbenz, S M; Yu, Y ^[1]; Berman, B; Burleson, G R; Cranston, K; Klein, A; Kyle, G S ^[2]; Alarcon, R; Averett, T; Comfort, J R; Goergen, J J; Ritchie, B G; Tinsley, J R ^[3]; Barlett, M; Hoffmann, G W; Johnson, K ; Moore, C F; Purcell, M; Ward, H; Williams, A ^[4]; Faucett, J A; Greene, S J; Jarmer, J J; McGill, J A; Morris, C L; Penttilae, S I; Tanaka, N ^[5]; Fortune, H T; Insko, E; Ivie, R; O'Donnell, J M; Smith, D ^[6]; Khandaker, M A ^[7]

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1. University of Minnesota, Minneapolis, Minnesota 55455 (United States)
2. New Mexico State University, Las Cruces, New Mexico 88003 (United States)
3. Arizona State University, Tempe, Arizona 85287 (United States)
4. University of Texas at Austin, Austin, Texas 78712-1081 (United States)
5. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
6. University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States)
7. University of Maryland, College Park, Maryland

Analyzing powers [ital A][sub [ital y]] were measured for [pi][sup +] and [pi][sup [minus]] elastic scattering from polarized [sup 13]C at incident pion energies [ital T][sub [pi]] near the [ital P][sub 33] [pi]-nucleon resonance. At [ital T][sub [pi]]=130 MeV, the values of [ital A][sub [ital y]] are significantly different from zero for [pi][sup [minus]] scattering. For [pi][sup +] at [ital T][sub [pi]]=130 MeV and for both [pi][sup [minus]] and [pi][sup +] at all other energies, the [ital A][sub [ital y]] are mostly consistent with zero. Elastic differential cross sections were measured using an unpolarized [sup 13]C target. Both the analyzing-power and cross-section data were compared with predictions using a variety of nuclear structure and reaction models. The analyzing power was found to be strongly sensitive to the quadrupole spin-flip part of the transition. The data of this work complement measurements of the magnetic form factor by electron scattering. The pion [ital A][sub [ital y]] data are not reproduced by calculations using wave functions that fit the magnetic form factor at low momentum transfers.

• OSTI ID: 7014897
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663460* -- Meson- & Hyperon-induced Reactions & Scattering-- (1992-)
663520 -- Nuclear Mass Ranges-- A=6-19-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
CARBON 13 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ELECTRON REACTIONS
ENERGY RANGE
FORM FACTORS
FUNCTIONS
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
LEPTON REACTIONS
MESON REACTIONS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MEV RANGE
MEV RANGE 100-1000
MOMENTUM TRANSFER
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
PION-NUCLEON INTERACTIONS
POLARIZED TARGETS
SCATTERING
SPIN FLIP
TARGETS
WAVE FUNCTIONS