Photonuclear sum rules and the tetrahedral configuration of {sup 4}He
- Racah Institute of Physics, Hebrew University, 91904 Jerusalem (Israel)
- Gesellschaft fuer Schwerionenforschung, Planckstr. 1, D-64291 Darmstadt (Germany)
- Department of Physics, George Washington University, Washington DC 20052 (United States)
Three well-known photonuclear sum rules (SR), i.e., the Thomas-Reiche-Kuhn, the bremsstrahlungs and the polarizability SR are calculated for {sup 4}He with the realistic nucleon-nucleon potential Argonne V18 and the three-nucleon force Urbana IX. The relation between these sum rules and the corresponding energy weighted integrals of the cross section is discussed. Two additional equivalences for the bremsstrahlungs SR are given, which connect it to the proton-neutron and neutron-neutron distances. Using them, together with our result for the bremsstrahlungs SR, we find a deviation from the tetrahedral symmetry of the spatial configuration of {sup 4}He. The possibility to access this deviation experimentally is discussed.
- OSTI ID:
- 20864176
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 74, Issue 6; Other Information: DOI: 10.1103/PhysRevC.74.061001; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
Similar Records
Two-body effects in deuteron photoabsorption sum rules
Effect of the Tensor Force on the Photonuclear Sum Rule