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Prog. Theor. Phys. Vol. 95 No. 1 (1996) pp. 115-141
A Separable Representation of the NN One-Boson-Exchange Potential and the Effect of the 1S0 Potential on the JP = 0^- πNN System near Pion Threshold
Tamotsu Ueda,
Kouji Tada and
Kazuhiro Kameyama
Faculty of Science, Ehime University, Matsuyama 790
(Received April 25, 1995)
Abstract:
A separable representation with respect ot the initial and final momentum variables is made for the NN one-boson-exchange potential (OBEP) due to Ueda, Riewe and Green in the method of Ernst, Shakin and Thaler. The representation is made for potentials with total angular momentum J ≤3 in the 0-300 MeV energy range of the incident laboratory proton. In rank two or three form, the OBEP is satisfactorily represented. The representation is very useful for problems of three-body systems involving two nucleons. An application is made to the JP = 0- πNN system in the three-body calculation. The effect of the separable 1S0 potential is investigated in the 3P0 NN →NN amplitude in this system. A remarkable threshold effect is found in the absorption parameter of the amplitude.
URL :
http://ptp.ipap.jp/link?PTP/95/115/
DOI : 10.1143/PTP.95.115
References:
-
T. Ueda and A. E. S. Green, Phys. Rev. 174 (1968), 1304[APS].
-
T. Ueda, Phys. Rev. Lett. 68 (1992), 142[APS].
-
T. E. O. Ericson et al., Phys. Rev. Lett. 75 (1995), 1046[APS].
R. Arndt, Proc. Sixth International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon, Blaubeuren, Germany, July, 1995.
R. Timmermans, ibid.
B. Loiseau, ibid.
-
T. Ueda, F. Riewe and A. E. S. Green, Phys. Rev. C17 (1978), 1763[APS].
-
J. Haidenbauer and W. Plessas, Phys. Rev. C32 (1985), 1424[APS].
-
Y. Koike, Phys. Rev. C42 (1990), 2286[APS].
Y. Koike, J. Haidenbauer and W. Plessas, Phys. Rev. C35 (1987), 396[APS].
J. Haidenbauer and Y. Koike, Phys. Rev. C34 (1986), 1187[APS].
-
S. Oryu, Phys. Rev. C27 (1983), 2500[APS].
S. Oryu, M. Araki and S. Satoh, Prog. Theor. Phys. Suppl. No. 61 (1977), 199[PTP].
-
D. J. Ernst, C. M. Shakin and R. M. Thaler, Phys. Rev. C8 (1973), 507A[APS].
- T. Ueda, Nucl. Phys. A463 (1987), 79c.
- T. Ueda, Nucl. Phys. A573 (1994), 511.
- T. Ueda, Y. Ikegami and K. Tada, Few Body Systems 18 (1995), 133.
- B. Bock et al., Nucl. Phys. A459 (1986), 573.
-
F. Tabakin, Phys. Rev. 174 (1968), 1208[APS].
-
R. A. Arndt, L. D. Roper, R. A. Bryan, R. B. Clark, B. J. VerWest and P. Signell, Phys. Rev. D28 (1983), 97[APS].
R. A. Arndt, I. I. Strakovsky and R. L. Workman, Phys. Rev. C50 (1994), 2731[APS].
