Effective IsovectorNNInteraction Strengths Determined from theS28i(p→,p→′)S28i(6−,T=1)Reaction

Autor:	C. Olmer, A. D. Bacher, J. Lisantti, S. M. Bowyer, S. W. Wissink, Jianglai Liu, S. Chang, E. J. Stephenson, S.P. Wells
Rok vydání:	1997
Předmět:	Physics symbols.namesake Pauli exclusion principle Mean field theory Transition strength symbols General Physics and Astronomy Inelastic electron scattering Sigma Spin-flip Atomic physics Polarization (waves) Excitation
Zdroj:	Physical Review Letters. 78:1636-1639
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.78.1636
Popis:	We report measurements of {sigma}({theta}), A({theta}), and polarization transfer for the {sup 28}Si({rvec p},{rvec p}{sup {prime}}){sup 28}Si reaction to the 6{sup {minus}},T=1 state at 14.36MeV initiated with 198MeV polarized protons. Normalization of the transition strength in the distorted-wave impulse approximation (DWIA) to inelastic electron scattering overpredicts the spin-longitudinal cross section by more than a factor of 2, while the spin-transverse cross section is nearly correct and the spin-orbit cross section is underpredicted. A reduced in-medium {rho}-meson mass reproduces some of these features, while strong relativistic mean field or Pauli blocking effects are too small. {copyright} {ital 1997} {ital The American Physical Society}
Databáze:	OpenAIRE
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