Published January 1997
| Version v1
Journal article
Spin asymmetries from 16O(rvec γ,pπ-) near Δ resonance energies
Creators
- Hicks, K.1
- Baghaei, H.1
- Caracappa, A.1
- Cichocki, A.1
- Davenport, G.1
- Finlay, R.1
- Gladyshev, V.1
- Gresko, T.1
- Hoblit, S.1
- Khandaker, M.1
- Kistner, O.1
- Lee, F.X.1
- Lindgren, R.1
- Lucas, M.1
- Miceli, L.1
- Norum, B.1
- Rapaport, J.1
- Sandorfi, A.1
- Sealock, R.1
- Smith, L.C.1
- Thorn, C.1
- Thornton, S.1
- Whisnant, C.S.1
- Wright, L.E.1
- 1. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
Description
Spin asymmetries for the 16O(rvec γ,pπ-) reaction are reported for incident photon energies of 293 ± 20 MeV, proton angles ranging from 28 degree to 140 degree (lab), and pion angles of 35 degree to 115 degree. The data are compared with calculations in a quasifree plane-wave impulse approximation model. This model is in good agreement with the data at small momentum transfer q, but does not follow the trend of the data at large q. Sensitivity to the Δ-nucleus potential and to modification of the Δ lifetime from nuclear medium effects are explored using a simple modification of the Δ propagator in the calculations. copyright 1997 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 55
- Journal Issue
- 1
- Journal Page Range
- p. R12-R15.
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 28032327
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ANGULAR DISTRIBUTION; ASYMMETRY; DELTA BARYONS; IMPULSE APPROXIMATION; LIFETIME; MEV RANGE 100-1000; MOMENTUM TRANSFER; NUCLEON-NUCLEON INTERACTIONS; OXYGEN 16 TARGET; PHOTONUCLEAR REACTIONS; PHOTOPRODUCTION; PIONS; POLARIZED BEAMS; PROPAGATOR; PROTONS; QUASI-FREE REACTIONS; RESONANCE; SPIN ORIENTATION
- Descriptors DEC
- BARYON-BARYON INTERACTIONS; BARYONS; BASIC INTERACTIONS; BEAMS; BOSONS; CATIONS; CHARGED PARTICLES; DIRECT REACTIONS; DISTRIBUTION; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRON-HADRON INTERACTIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INTERACTIONS; IONS; MESONS; MEV RANGE; N*BARYONS; NUCLEAR REACTIONS; NUCLEONS; ORIENTATION; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PSEUDOSCALAR MESONS; TARGETS