Pion elastic scattering from polarized 13C in the energy region of the P33 resonance
Creators
- Yen, Y.1
- Brinkmoeller, B.1
- Dehnhard, D.1
- Franey, M.A.1
- Sterbenz, S.M.1
- Yu, Y.1
- Berman, B.2
- Burleson, G.R.2
- Cranston, K.2
- Klein, A.2
- Kyle, G.S.2
- Alarcon, R.3
- Averett, T.3
- Comfort, J.R.3
- Goergen, J.J.3
- Ritchie, B.G.3
- Tinsley, J.R.3
- Barlett, M.4
- Hoffmann, G.W.4
- Johnson, K.4
- Moore, C.F.4
- Purcell, M.4
- Ward, H.4
- Williams, A.4
- Faucett, J.A.5
- Greene, S.J.5
- Jarmer, J.J.5
- McGill, J.A.5
- Morris, C.L.5
- Penttilae, S.I.5
- Tanaka, N.5
- Fortune, H.T.6
- Insko, E.6
- Ivie, R.6
- O'Donnell, J.M.6
- Smith, D.6
- Khandaker, M.A.7
- Chakravarti, S.8
- 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 20742 (United States)
- 8. California State Polytechnic University, Pomona, California 91768 (United States)
Description
Analyzing powers Ay were measured for π+ and π- elastic scattering from polarized 13C at incident pion energies Tπ near the P33 π-nucleon resonance. At Tπ=130 MeV, the values of Ay are significantly different from zero for π- scattering. For π+ at Tπ=130 MeV and for both π- and π+ at all other energies, the Ay are mostly consistent with zero. Elastic differential cross sections were measured using an unpolarized 13C 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 Ay data are not reproduced by calculations using wave functions that fit the magnetic form factor at low momentum transfers
Additional details
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 50
- Journal Issue
- 2
- Journal Page Range
- p. 897-908.
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 26003631
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- CARBON 13 TARGET; DIFFERENTIAL CROSS SECTIONS; ELASTIC SCATTERING; ELECTRON REACTIONS; FORM FACTORS; MEV RANGE 100-1000; MOMENTUM TRANSFER; PION MINUS REACTIONS; PION PLUS REACTIONS; PION-NUCLEON INTERACTIONS; POLARIZATION-ASYMMETRY RATIO; POLARIZED TARGETS; SPIN FLIP; WAVE FUNCTIONS
- Descriptors DEC
- CROSS SECTIONS; ENERGY RANGE; FUNCTIONS; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; INTERACTIONS; LEPTON REACTIONS; MESON REACTIONS; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; MEV RANGE; NUCLEAR REACTIONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PION REACTIONS; SCATTERING; TARGETS