skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Coherent photon scattering cross sections for helium near the delta resonance

Abstract

The angular distributions for coherent photon scattering from {sup 4}He were measured at average laboratory bremsstrahlung energies of 187, 235, and 280 MeV. The experiment was performed at the Saskatchewan Accelerator Laboratory using the new high duty factor electron beam. The scattered photons were observed with a high-resolution NaI(Tl) total absorption scintillation detector. These measurements are intended to investigate modification of the {Delta} properties inside the nuclear medium and the treatment of nonresonant contributions to the scattering cross sections. The results are compared to theoretical calculations in the isobar-hole model. Clear deviations from the theory are evident at all energies, especially at 187 MeV.

Authors:
; ;  [1]; ; ; ; ; ; ;  [2]; ; ;  [3]
  1. Boston University, Boston, Massachusetts 02215 (US)
  2. Saskatchewan Accelerator Laboratory, Saskatoon, Saskatchewan, Canada (CA)
  3. University of Illinois, 1110 W. Green Street, Urbana, Illinois 61801 (US)
Publication Date:
OSTI Identifier:
5645777
Resource Type:
Journal Article
Journal Name:
Physical Review, C (Nuclear Physics); (USA)
Additional Journal Information:
Journal Volume: 43:4; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; HELIUM 4 TARGET; PHOTONUCLEAR REACTIONS; COHERENT SCATTERING; ANGULAR DISTRIBUTION; DELTA-1232 BARYONS; DIFFERENTIAL CROSS SECTIONS; ISOBAR MODEL; MEV RANGE 100-1000; BARYONS; CROSS SECTIONS; DELTA BARYONS; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRONS; MATHEMATICAL MODELS; MEV RANGE; N BARYONS; NUCLEAR REACTIONS; PARTICLE MODELS; SCATTERING; TARGETS; 651220* - Nuclear Properties & Reactions, A=1-5, Experimental

Citation Formats

Delli Carpini, D, Booth, E C, Miller, J P, Igarashi, R, Bergstrom, J, Caplan, H, Doss, M, Hallin, E, Rangacharyulu, C, Skopik, D, Lucas, M A, Nathan, A M, and Wells, D P. Coherent photon scattering cross sections for helium near the delta resonance. United States: N. p., 1991. Web. doi:10.1103/PhysRevC.43.1525.
Delli Carpini, D, Booth, E C, Miller, J P, Igarashi, R, Bergstrom, J, Caplan, H, Doss, M, Hallin, E, Rangacharyulu, C, Skopik, D, Lucas, M A, Nathan, A M, & Wells, D P. Coherent photon scattering cross sections for helium near the delta resonance. United States. doi:10.1103/PhysRevC.43.1525.
Delli Carpini, D, Booth, E C, Miller, J P, Igarashi, R, Bergstrom, J, Caplan, H, Doss, M, Hallin, E, Rangacharyulu, C, Skopik, D, Lucas, M A, Nathan, A M, and Wells, D P. Mon . "Coherent photon scattering cross sections for helium near the delta resonance". United States. doi:10.1103/PhysRevC.43.1525.
@article{osti_5645777,
title = {Coherent photon scattering cross sections for helium near the delta resonance},
author = {Delli Carpini, D and Booth, E C and Miller, J P and Igarashi, R and Bergstrom, J and Caplan, H and Doss, M and Hallin, E and Rangacharyulu, C and Skopik, D and Lucas, M A and Nathan, A M and Wells, D P},
abstractNote = {The angular distributions for coherent photon scattering from {sup 4}He were measured at average laboratory bremsstrahlung energies of 187, 235, and 280 MeV. The experiment was performed at the Saskatchewan Accelerator Laboratory using the new high duty factor electron beam. The scattered photons were observed with a high-resolution NaI(Tl) total absorption scintillation detector. These measurements are intended to investigate modification of the {Delta} properties inside the nuclear medium and the treatment of nonresonant contributions to the scattering cross sections. The results are compared to theoretical calculations in the isobar-hole model. Clear deviations from the theory are evident at all energies, especially at 187 MeV.},
doi = {10.1103/PhysRevC.43.1525},
journal = {Physical Review, C (Nuclear Physics); (USA)},
issn = {0556-2813},
number = ,
volume = 43:4,
place = {United States},
year = {1991},
month = {4}
}