Prog. Theor. Phys. Vol. 105 No. 6 (2001) pp. 1059-1064

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Letters

Dependence on Spin and Isospin of Short-Range Nuclear Forces in Modified OPEG

Ryozo Tamagaki^1,^* and Tatsuyuki Takatsuka^2,^**

¹Kamitakano Maeda-cho 26-5, Kyoto 606-0097, Japan
²Faculty of Humanities and Social Sciences, Iwate University
Morioka 020-8550, Japan

(Received March 6, 2001)

Abstract:

Dependence on spin and isospin of nucleon-nucleon potentials at small inernucleon distances is studied by observing the operator forms deduced from two modified versions of OPEG potentials with the OPEP-tail and Gaussian core terms. A significant difference between their spin- and isospin-dependent features in the core region is noted.

URL : http://ptp.ipap.jp/link?PTP/105/1059/
DOI : 10.1143/PTP.105.1059

^*E-mail: tamagaki@yukawa-u.ac.jp
^**E-mail: takatuka@iwate-u.ac.jp

References:

R. Tamagaki, Prog. Theor. Phys. 39 (1968), 91[PTP].
V. G. J. Stoks et al., Phys. Rev. C48 (1993), 792[APS].
R. A. Arndt, Scattering Analysis Interactive Dial-up; SAID (2001).
For the configuration-space NN potentials, for example,
a) M. Lacombe et al., Phys. Rev. D12 (1975), 1495[APS]; C21 (1980), 861.
b) T. Obinata and M. Wada, Prog. Theor. Phys. 57 (1977), 1984[PTP].
c) R. Machleidt, in Adv. in Nucl. Phys., Vol. 19 (1989), p. 189.
d) V. G. J. Stoks et al., Phys. Rev. C49 (1994), 2950[APS]
e) R. B. Wiringa, V. G. J. Stoks and R. Schiavilla, Phys. Rev. C51 (1995), 38[APS].
T. Takatsuka and R. Tamagaki, Prog. Theor. Phys. 98 (1997), 393[PTP]; 101 (1999), 1043.
A. Akmal and V. R. Pandharipande, Phys. Rev. 56 (1997), 2261[APS].
T. Takatsuka and R. Tamagaki, Prog. Theor. Phys. 46 (1971), 114[PTP].
The conclusions reached in Ref. 5) are not affected by this change of OPEG-B potential, although it makes the critical temperatures of the ³ P₂-type baryonic superfluids lower (higher) by about 5–20 % for neutral (charged) pion condensation.

Citing Article(s) :

Progress of Theoretical Physics Vol. 112 No. 1 (2004) pp. 37-72 :
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Progress of Theoretical Physics Vol. 113 No. 5 (2005) pp. 1009-1046 :
Relativistic Mean Field Models and Nucleon-Nucleon Interactions

Milena Serra, Takaharu Otsuka, Yoshinori Akaishi, Peter Ring and Shunsuke Hirose
Progress of Theoretical Physics Vol. 115 No. 1 (2006) pp. 245-250 :
Baryonic ³P₂-Dominant Superfluidity under Combined Pion Condensation with Δ-Mixing

Ryozo Tamagaki and Tatsuyuki Takatsuka
Progress of Theoretical Physics Vol. 117 No. 5 (2007) pp. 861-901 :
Baryonic ³ P₂-Dominant Superfluidity under Combined Pion Condensation with Δ Isobar. II

Ryozo Tamagaki and Tatsuyuki Takatsuka
Progress of Theoretical Physics Vol. 119 No. 6 (2008) pp. 965-989 :
Universal Short-Range Repulsion in the Baryon System Originating from the Confinement

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Progress of Theoretical Physics Supplement No.156 (2004) pp. 84-103 :
Hyperon-Mixed Neutron Stars

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