Glauber isovector spin responses for (p,n) reactions at 494 MeV

Details Glauber isovector spin responses for (p,n) reactions at 494 MeV Glauber isovector spin responses for (p,n) reactions at 494 MeV

1995-02-13

arxiv.org/abs/nucl-th/9502032v1

Phys. Rev. Lett. 75 (1995) 29

Physics

Nuclear Physics

Nuclear Theory

8 pages, uses REVTeX and epsfig, 2 postscript figures; a postscript version of the paper is available by anonymous ftp at ft

Scientific paper

10.1103/PhysRevLett.75.29

The separated isovector spin-longitudinal and spin-transverse responses from a recent (p,n) quasifree experiment at 494 MeV are analyzed in a Glauber theory framework up to two-step contributions. Nuclear correlations are treated in the continuum random phase approximation, accounting for the spreading width of the particle-hole states. A good description of the spin-longitudinal response is achieved, hinting at some evidence of pionic effects in the quasielastic region. The spin-transverse response is underestimated and we show that multistep contributions, while sizable, are not sufficient to provide an explanation of the discrepancy.

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