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Titolo:
PION-SCATTERING TO 6(-) STRETCHED STATES IN S-32
Autore:
CLAUSEN BL; JOHNSON TW; LINDGREN RA; CROMER K; PETERSON RJ; BACHER AD; WARD H; WILLIAMS AL;
Indirizzi:
LOMA LINDA UNIV,GEOSCI RES INST LOMA LINDA CA 92350 LA SIERRA UNIV,DEPT PHYS RIVERSIDE CA 92515 UNIV VIRGINIA,INST NUCL & PARTICLE PHYS CHARLOTTESVILLE VA 22901 UNIV VIRGINIA,DEPT PHYS CHARLOTTESVILLE VA 22901 UNIV COLORADO,PHYS NUCL LAB BOULDER CO 80309 UNIV TEXAS,DEPT PHYS AUSTIN TX 78712
Titolo Testata:
Physical review. C. Nuclear physics
fascicolo: 2, volume: 55, anno: 1997,
pagine: 625 - 639
SICI:
0556-2813(1997)55:2<625:PT6SSI>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
PARTICLE-HOLE STATES; INELASTIC ELECTRON-SCATTERING; NEGATIVE-PARITY STATES; SAXON WAVE-FUNCTIONS; PROTON-SCATTERING; SHELL NUCLEI; MAGNETIC TRANSITIONS; SPIN STRENGTH; ENERGY-LEVELS; 4 STATES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
68
Recensione:
Indirizzi per estratti:
Citazione:
B.L. Clausen et al., "PION-SCATTERING TO 6(-) STRETCHED STATES IN S-32", Physical review. C. Nuclear physics, 55(2), 1997, pp. 625-639

Abstract

Inelastic pi(-+) differential cross-section measurements at a pion incident energy of 162 MeV were made for 12 (f(7/2)d(5/2)-1) 6(-) statesin S-32, including four tentative new isoscalar states. Isoscalar andisovector mag netic structure coefficients were determined for each state by combining the pion data with previous electron scattering data. The trend of small isoscalar/isovector strength ratios continues in S-32, With the isovector strength being comparable to theoretical calculations, but the isoscalar strength exhausting only about 17% of an extreme-single-particle-hole model. However, this isoscalar strength islarger than that observed in other sd-shell nuclei and exhausts 75% of large-basis shell-model predictions. The substantial fragmentation of the 6(-) isovector strength observed in S-32 electron scattering, but not previously observed in other self-conjugate nuclei, appears to extend to the isoscalar strength and to include substantial isospin mixing. The general systematics of isoscalar and isovector stretched state transition strengths are reviewed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 07:30:19