Influence of Spin--Orbit Force on Nucleon--Nucleon Scattering in the Quark Delocalization Colour Screening Model
HUANG Hong-Xia1, CHEN Ling-Zhi2, PANG Hou-Rong3, PING Jia-Lun1, WANG Fan2
1Department of Physics, Nanjing Normal University, Nanjing 2100972Department of Physics, Nanjing University, Nanjing 2100933Department of Physics, Southeast University, Nanjing 210094
Influence of Spin--Orbit Force on Nucleon--Nucleon Scattering in the Quark Delocalization Colour Screening Model
HUANG Hong-Xia1;CHEN Ling-Zhi2;PANG Hou-Rong3;PING Jia-Lun1; WANG Fan2
1Department of Physics, Nanjing Normal University, Nanjing 2100972Department of Physics, Nanjing University, Nanjing 2100933Department of Physics, Southeast University, Nanjing 210094
摘要The symmetric spin--orbit interactions of one-gluon-exchange and confinement are included in the nucleon--nucleon phase shift calculation in the framework of quark delocalization colour screening model. The spin--orbit interaction has little influence on D wave phase shift. For the triplet P waves, 3PT is in good agreement with the experimental data and 3PLS is attractive but not strong enough, whereas 3PC is too strongly repulsive. Our results indicate that the symmetric spin--orbit interaction of one-gluon-exchange and confinement potential cannot give a good description of the triplet P wave phase shifts. More sophisticated considerations, the delocalization depending on the relative orientation between two cluster, might be needed to improve the description of P-wave NN interaction.
Abstract：The symmetric spin--orbit interactions of one-gluon-exchange and confinement are included in the nucleon--nucleon phase shift calculation in the framework of quark delocalization colour screening model. The spin--orbit interaction has little influence on D wave phase shift. For the triplet P waves, 3PT is in good agreement with the experimental data and 3PLS is attractive but not strong enough, whereas 3PC is too strongly repulsive. Our results indicate that the symmetric spin--orbit interaction of one-gluon-exchange and confinement potential cannot give a good description of the triplet P wave phase shifts. More sophisticated considerations, the delocalization depending on the relative orientation between two cluster, might be needed to improve the description of P-wave NN interaction.
HUANG Hong-Xia;CHEN Ling-Zhi;PANG Hou-Rong;PING Jia-Lun; WANG Fan. Influence of Spin--Orbit Force on Nucleon--Nucleon Scattering in the Quark Delocalization Colour Screening Model[J]. 中国物理快报, 2008, 25(5): 1617-1620.
HUANG Hong-Xia, CHEN Ling-Zhi, PANG Hou-Rong, PING Jia-Lun, WANG Fan. Influence of Spin--Orbit Force on Nucleon--Nucleon Scattering in the Quark Delocalization Colour Screening Model. Chin. Phys. Lett., 2008, 25(5): 1617-1620.
[1] Fujiwara Y and Hecht K T 1985 Nucl. Phys. A 444 541 Fujiwara Y and Hecht K T 1986 Nucl. Phys. A 456669 Fujiwara Y and Hecht K T 1985 Nucl. Phys. A 462621 [2] Morimatsu O, Yazaki K and Oka M 1984 Nucl. Phys. A 424 412 Takeuchi S, Shimizu K and Yazaki K 1989 Nucl. Phys. A 504 777 [3] Faessler A and Fernandez F 1983 Phys. Lett. B 124 145 [4] Valcarce A et al 2005 Rep. Prog. Phys. 68 965and references therein [5] Fujiwara Y, Nakamoto C and Suzuki Y 1996 Phys. Rev.C 54 2180 [6] Zhang Z Y, Yu Y W, Shen P N et al 1997 Nucl. Phys. A 625 59 Dai L R, Zhang Z Y, Yu Y W and Wang P 2003 Nucl.Phys. A 727 321 [7] BES collaboration 2004 Phys. Lett. B \textbf{598 149 [8] Kaiser N, Grestendorfer S and Weise W 1998 Nucl. Phys. A 637 395 Oset E, Toki H, Mizobe M and Takahashi T T 2000 Prog.Theor. Phys. 103 351 Kaskulov M M and Clement H 2004 Phys. Rev. C 70014002 Kaskulov M M and Clement H 2007 Phys. Rev. C 76014001 [9] Wang F, Wu G H, Teng L J and Goldman T 1992 Phys.Rev. Lett. 69 2901 Wu G H, Teng L J, Ping J L et al 1996 Phys. Rev. C 53 1161 Wu G H, Ping J L, Teng L J et al 2000 Nucl. Phys. A 673 279 Ping J L, Wang F and Goldman T 1999 Nucl. Phys. A 657 95 [10] Ping J L, Pang H R, Wang F and Goldman T 2002 Phys.Rev. C 65 044003 Lu X F, Ping J L and Wang F 2003 Chin. Phys. Lett. 20 42 [11] Chen L Z, Pang H R, Huang H X, Ping J L and Wang F 2007 Phys. Rev. C 76 014001 [12] Faessler A, Fernandez F, Lubeck G and Shimizu K 1982 Phys. Lett. B 112 201 Faessler A, Fernandez F, Lubeck G and Shimizu K 1983 Nucl. Phys. A 402 555 Faessler A, Buchmann A and Yamauchi Y 1993 Int. J.Mod. Phys. E 2 39 [13] Brauer K, Faessler A, Fernandez F and Shimizu K 1990 Nucl. Phys. A 507 599 [14] Wang F and Wong C W 1985 Nucl. Phys. A 438620 He Y, Wang F and Wong C W 1986 Nucl. Phys. A 451 653 He Y, Wang F and Wong C W 1986 Nucl. Phys. A 454 541 [15]Shimizu K 1989 Rep. Prog. Phys 52 1 Morimatsu O, Ohta S, Shimizu K and Yazaki K 1984 Nucl.Phys. A 420 573 [16] Koike Y 1986 Nucl. Phys. A 454 509 Koike Y, Morimatsu O and Yazaki K 1986 Nucl. Phys. A 449 635 [17] Suzuki Y and Hecht K T 1984 Nucl. Phys. A 420 525 [18] Valcarce A, Buchmann A, Fernandez F and Faessler A 1995 Phys. Rev. C 51 1480 [19] Zong H S and Wang F 1997 Chin. J. Nucl. Phys. 19 31 [20] Kamimura M 1997 Supp. Prog. Theor. Phys. 62236 Oka M and Yazaki K 1981 Prog. Theor. Phys. 66556 [21] Aendt R A, Roper L D et al 1983 Phys. Rev. D 28 97 [22] Entem D R, Fern\'{andez F and Valcarce A 2000 Phys. Rev. C 62 034002
2008, Vol. 25 
