Kaonic Nuclear Cluster K- pp in Quark Delocalization Colour Screening Model
DENG Cheng-Rong1, PING Jia-Lun 1,2
1Department of Physics, Nanjing Normal University, Nanjing 2100972Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210097
Kaonic Nuclear Cluster K- pp in Quark Delocalization Colour Screening Model
DENG Cheng-Rong1;PING Jia-Lun 1,2
1Department of Physics, Nanjing Normal University, Nanjing 2100972Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210097
摘要The quark-delocalization colour-screening model is employed to study the kaonic nuclear cluster K-pp system. The calculation shows that there is a strong effective attraction between kaon and protons. The bound state can be formed and the binding energy is estimated to be about 80MeV, and the space configuration is a symmetrical linear triatomic molecule with radius 1.15fm. The results also show that the quark delocalization is responsible for the strong attraction in the system and the colour screening adds a little attraction in this case.
Abstract：The quark-delocalization colour-screening model is employed to study the kaonic nuclear cluster K-pp system. The calculation shows that there is a strong effective attraction between kaon and protons. The bound state can be formed and the binding energy is estimated to be about 80MeV, and the space configuration is a symmetrical linear triatomic molecule with radius 1.15fm. The results also show that the quark delocalization is responsible for the strong attraction in the system and the colour screening adds a little attraction in this case.
[1] Dalitz R H, Wong T C and Rajasekaran G 1967 Phys. Rev. 153 1617 Martin A D 1976 Phys. Lett. B 65 346 Akaishi Y and Yamazaki T 2002 Phys. Rev. C 65 044005 Dote A and Horiuchi H et al2004 Phys. Rev. C 70 044313 [2] Magas V K, Oset E, Ramos A and Toki H 2006 Phys. Rev. C 74 025206 Ikeda Y and Sato T 2007 Preprint Nucl-th/0701001 Dote A and Weise W 2007 Preprint Nucl-th/0701050 Koike T and Harada T 2007 Preprint Nucl-th/0703037 Shevchenko N V, Gal A and Mares J 2007 Phys. Rev. Lett. 98 082301 [3] Suzuki T, Bhang H and Franklin G et al 2004 Phys. Lett.B 597 263 [4] Agnello M et al (the FINUDA Collaboration) 2005 Phys.Rev. Lett. 94 212303 [5] Wang F, Wu G H and Teng L J 1992 Phys. Rev. Lett. 69 2901 [6] Wang F, Ping J L and Goldman T 1995 Phys. Rev. C 513411 Ping J L, Pang H R, Wang F and Goldman T 2002 Phys. Rev. C 65 044003 [7] Ping J L, Wang F and Goldman T 2001 Nucl. Phys A 688 871 [8] Wu G H, Teng L J, Wang F and Goldman T 1996 Phys. Rev. C 53 1161 Wu G H, Ping J L, Teng L J, Wang F and Goldman T 2000 Nucl.Phys A 673 279 Wang F, Ping J L, Teng L J and Goldman T 1995 Phys. Rev. C 51 3411 Lu X F, Ping J L and Wang F 2003 Chin. Phys. Lett. 20 42 Pang H R, Ping J L, Chen L Z and Wang F 2004 Chin. Phys. Lett. 21 1455 [9] Ping J L, Qing D and Wang F et al 2004 Phys. Lett. B 602 197 [10] Ivanov A N, Kienle P, Marton J and Widmann E 2005 Preprint nucl-th/0512037 [11] Mare$\check{s$ J, Friedman E and Gal A 2006 Preprintnucl-th/0601009 [12] Yamazaki T and Akaishi Y 2007 Preprint nucl-th/07063651 [13] Yamazaki T and Akasishi Y 2006 Preprint nucl-th/0604049
2007, Vol. 24 
