Polarization transfer and spin response functions in quasielastic [Formula Presented] reactions at 346 MeV

Tomotsugu Wakasa, H. Sakai, K. Hatanaka, H. Okamura, H. Otsu, S. Fujita, T. Nonaka, T. Uesaka, Y. Satou, T. Ohnishi, G. Yokoyama, S. Ishida, N. Sakamoto, M. B. Greenfield, M. Ichimura, K. Kawahigashi

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

A complete set of polarization transfer coefficients has been measured for quasielastic [Formula Presented] reactions on [Formula Presented] [Formula Presented] and [Formula Presented] at a bombarding energy of 346 MeV and a laboratory scattering angle of [Formula Presented] The spin-longitudinal [Formula Presented] and spin-transverse [Formula Presented] response functions are extracted within a framework of a plane-wave impulse approximation with eikonal and optimal factorization approximations. The theoretically expected enhancement of [Formula Presented] is not observed. The observed [Formula Presented] is consistent with the pionic enhanced [Formula Presented] expected by random-phase approximation (RPA) calculations. On the contrary, a large excess of the observed [Formula Presented] is found in comparison with [Formula Presented] of the quasielastic electron scattering as well as of RPA calculations. This excess masks the effect of pionic correlations in [Formula Presented] The theoretical calculations are performed in a distorted-wave impulse approximation with RPA correlations, which indicates that the nuclear absorption effect depends on the spin direction. This spin-direction dependence is responsible in part for the excess of [Formula Presented]

Original languageEnglish
Pages (from-to)3177-3195
Number of pages19
JournalPhysical Review C - Nuclear Physics
Volume59
Issue number6
DOIs
Publication statusPublished - Jan 1 1999
Externally publishedYes

Fingerprint

polarization
approximation
impulses
factorization
electron scattering
plane waves
masks

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Polarization transfer and spin response functions in quasielastic [Formula Presented] reactions at 346 MeV. / Wakasa, Tomotsugu; Sakai, H.; Hatanaka, K.; Okamura, H.; Otsu, H.; Fujita, S.; Nonaka, T.; Uesaka, T.; Satou, Y.; Ohnishi, T.; Yokoyama, G.; Ishida, S.; Sakamoto, N.; Greenfield, M. B.; Ichimura, M.; Kawahigashi, K.

In: Physical Review C - Nuclear Physics, Vol. 59, No. 6, 01.01.1999, p. 3177-3195.

Research output: Contribution to journalArticle

Wakasa, T, Sakai, H, Hatanaka, K, Okamura, H, Otsu, H, Fujita, S, Nonaka, T, Uesaka, T, Satou, Y, Ohnishi, T, Yokoyama, G, Ishida, S, Sakamoto, N, Greenfield, MB, Ichimura, M & Kawahigashi, K 1999, 'Polarization transfer and spin response functions in quasielastic [Formula Presented] reactions at 346 MeV', Physical Review C - Nuclear Physics, vol. 59, no. 6, pp. 3177-3195. https://doi.org/10.1103/PhysRevC.59.3177
Wakasa, Tomotsugu ; Sakai, H. ; Hatanaka, K. ; Okamura, H. ; Otsu, H. ; Fujita, S. ; Nonaka, T. ; Uesaka, T. ; Satou, Y. ; Ohnishi, T. ; Yokoyama, G. ; Ishida, S. ; Sakamoto, N. ; Greenfield, M. B. ; Ichimura, M. ; Kawahigashi, K. / Polarization transfer and spin response functions in quasielastic [Formula Presented] reactions at 346 MeV. In: Physical Review C - Nuclear Physics. 1999 ; Vol. 59, No. 6. pp. 3177-3195.
@article{864c4904f002464d9a7cfe3d19bd65a6,
title = "Polarization transfer and spin response functions in quasielastic [Formula Presented] reactions at 346 MeV",
abstract = "A complete set of polarization transfer coefficients has been measured for quasielastic [Formula Presented] reactions on [Formula Presented] [Formula Presented] and [Formula Presented] at a bombarding energy of 346 MeV and a laboratory scattering angle of [Formula Presented] The spin-longitudinal [Formula Presented] and spin-transverse [Formula Presented] response functions are extracted within a framework of a plane-wave impulse approximation with eikonal and optimal factorization approximations. The theoretically expected enhancement of [Formula Presented] is not observed. The observed [Formula Presented] is consistent with the pionic enhanced [Formula Presented] expected by random-phase approximation (RPA) calculations. On the contrary, a large excess of the observed [Formula Presented] is found in comparison with [Formula Presented] of the quasielastic electron scattering as well as of RPA calculations. This excess masks the effect of pionic correlations in [Formula Presented] The theoretical calculations are performed in a distorted-wave impulse approximation with RPA correlations, which indicates that the nuclear absorption effect depends on the spin direction. This spin-direction dependence is responsible in part for the excess of [Formula Presented]",
author = "Tomotsugu Wakasa and H. Sakai and K. Hatanaka and H. Okamura and H. Otsu and S. Fujita and T. Nonaka and T. Uesaka and Y. Satou and T. Ohnishi and G. Yokoyama and S. Ishida and N. Sakamoto and Greenfield, {M. B.} and M. Ichimura and K. Kawahigashi",
year = "1999",
month = "1",
day = "1",
doi = "10.1103/PhysRevC.59.3177",
language = "English",
volume = "59",
pages = "3177--3195",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "6",

}

TY - JOUR

T1 - Polarization transfer and spin response functions in quasielastic [Formula Presented] reactions at 346 MeV

AU - Wakasa, Tomotsugu

AU - Sakai, H.

AU - Hatanaka, K.

AU - Okamura, H.

AU - Otsu, H.

AU - Fujita, S.

AU - Nonaka, T.

AU - Uesaka, T.

AU - Satou, Y.

AU - Ohnishi, T.

AU - Yokoyama, G.

AU - Ishida, S.

AU - Sakamoto, N.

AU - Greenfield, M. B.

AU - Ichimura, M.

AU - Kawahigashi, K.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - A complete set of polarization transfer coefficients has been measured for quasielastic [Formula Presented] reactions on [Formula Presented] [Formula Presented] and [Formula Presented] at a bombarding energy of 346 MeV and a laboratory scattering angle of [Formula Presented] The spin-longitudinal [Formula Presented] and spin-transverse [Formula Presented] response functions are extracted within a framework of a plane-wave impulse approximation with eikonal and optimal factorization approximations. The theoretically expected enhancement of [Formula Presented] is not observed. The observed [Formula Presented] is consistent with the pionic enhanced [Formula Presented] expected by random-phase approximation (RPA) calculations. On the contrary, a large excess of the observed [Formula Presented] is found in comparison with [Formula Presented] of the quasielastic electron scattering as well as of RPA calculations. This excess masks the effect of pionic correlations in [Formula Presented] The theoretical calculations are performed in a distorted-wave impulse approximation with RPA correlations, which indicates that the nuclear absorption effect depends on the spin direction. This spin-direction dependence is responsible in part for the excess of [Formula Presented]

AB - A complete set of polarization transfer coefficients has been measured for quasielastic [Formula Presented] reactions on [Formula Presented] [Formula Presented] and [Formula Presented] at a bombarding energy of 346 MeV and a laboratory scattering angle of [Formula Presented] The spin-longitudinal [Formula Presented] and spin-transverse [Formula Presented] response functions are extracted within a framework of a plane-wave impulse approximation with eikonal and optimal factorization approximations. The theoretically expected enhancement of [Formula Presented] is not observed. The observed [Formula Presented] is consistent with the pionic enhanced [Formula Presented] expected by random-phase approximation (RPA) calculations. On the contrary, a large excess of the observed [Formula Presented] is found in comparison with [Formula Presented] of the quasielastic electron scattering as well as of RPA calculations. This excess masks the effect of pionic correlations in [Formula Presented] The theoretical calculations are performed in a distorted-wave impulse approximation with RPA correlations, which indicates that the nuclear absorption effect depends on the spin direction. This spin-direction dependence is responsible in part for the excess of [Formula Presented]

UR - http://www.scopus.com/inward/record.url?scp=17144436399&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17144436399&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.59.3177

DO - 10.1103/PhysRevC.59.3177

M3 - Article

VL - 59

SP - 3177

EP - 3195

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 6

ER -