The Prediction of Possible Nonstrange Dibaryon
DAI Lian-Rong**
Department of Physics, Liaoning Normal University, Dalian 116029
Abstract ：Recently, the mixing of scalar mesons was introduced into the chiral SU (3) quark model and also dynamically applied to the baryon-baryon system. The results show that the nucleon-nucleon and hyperon-nucleon scattering data can be reasonably described for different mixing cases, one is ideal mixing and the other is θs =19° mixing. In the present work, by taking the above parameters, the possible candidate of deltaron bound state is further predicted. We find that the contributions from σ and ε exchange to binding energy of deltaron are different, that the contribution from ε exchange is negligible, and that σ exchange is dominant. We also find that the binding energy of deltaron is very stable, around several tens of MeV, no matter what kind of mixing is adopted.
收稿日期: 2013-09-24
出版日期: 2014-01-28
[1] Takeuchi S and Oka M 1991 Phys. Rev. Lett. 66 1271 1999 Phys. Rev. C 60 045203 1997 J. Phys. G 23 1663 2005 Chin. Phys. Lett. 22 2204 2009 Chin. Phys. C 33 1397 1992 Phys. Rev. Lett. 69 2901 1995 Phys. Rev. C 51 3411 2010 Mod. Phys. Lett. A 25 2155 1994 Phys. Rev. C 50 2246 1978 Phys. Rev. Lett. 40 1543 1987 Prog. Theor. Phys. Suppl. 91 146 2010 Mod. Phys. Lett. A 25 1603 2001 Nucl. Phys. A 683 487 2007 Chin. Phys. Lett. 24 389 2006 Chin. Phys. Lett. 23 3215 2004 Chin. Phys. Lett. 21 1455 1997 Nucl. Phys. A 625 59 1995 Phys. Rev. C 52 3393 2012 Phys. Rev. D 86 010001 2000 Phys. Rev. C 61 065204 2000 Phys. Rev. C 62 028202 2003 Nucl. Phys. A 714 265 2004 Phys. Rev. C 70 044004 2011 Eur. Phys. J. A 47 26 2010 Chin. Phys. Lett. 27 012102 2010 Chin. Phys. Lett. 27 061301 2003 Nucl. Phys. A 727 353 1997 Nucl. Phys. A 620 438 1999 Phys. Rev. D 59 074001 1999 Phys. Rev. D 60 074023 1977 Suppl. Prog. Theor. Phys. 62 236 1983 Nucl. Phys. B 216 277
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
PANG Hou-Rong;PING Jia-Lun WANG Fan. N ¯N S -Wave Elastic Cross Section and Possible Bound States in a Constituent Quark Model
[7]
CHEN Ling-Zhi;PANG Hou-Rong;HUANG Hong-Xia;PING Jia-Lun;WANG Fan. Subtraction of Spurious Centre-of-Mass Motion in Quark Delocalization and Colour Screening Model
[8]
DAI Lian-Rong;ZHANG Dan;LI Chun-Ran;TONG Lei. Structures of NΩ and △Ω Dibaryons
[9]
DAI Lian-Rong;ZHANG Zong-Ye;YU You-Wen⊃. Structure of Di-Ω Dibaryon
[10]
DAI Lian-Rong. Dibaryon Structure in Extended Chiral SU(3) Quark Model
[11]
PANG Hou-Rong;PING Jia-Lun;CHEN Ling-Zhi;WANG Fan. Dibaryon Mass and Width Calculation with Tensor Interaction
[12]
QING Di;SUN He-Ming;WANG Fan. A Hadronic Model Calculation of the Electro-Production of d* Dibaryon
[13]
YANG Chun;CHEN Tao;YE Yan-lin;YING Jun;XU Chun-cheng;LIU Hong-tao. Correlation of final state Interaction with the Detection Phase Space
2014, Vol. 31 
