Quark Exchange Effect in Two Baryon Systems

YU You-Wen; ZHANG Zong-Ye

Chinese Physics C> 2002, Vol. 26> Issue(S1) : 54-62

Quark Exchange Effect in Two Baryon Systems

YU You-Wen ^, ,
ZHANG Zong-Ye

Institute of High Energy Physics, CAS, Beijing 100039, China

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Abstract：
The quark exchange effect in the two baryon systems is studied. The results show that the quark effect becomes obvious only when the two baryon clusters are closed together, and it also depends the spin-flavor quantum number of the system. The expectation value of the permutation operator of the spin-flavor-color space is a very important quantity to measure the quark exchange effect.some binding energies of the dibaryons are calculated, which are cardinal in examining the quark effect.

References

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Wheeler J A. Phys. Rev., 1937, 52: 1083, 1107 2 Wildermuth K, TANG Y C. A Unified Therory of the Nucleus (Vieweg, Braunschweig, 1977)3 YU You–Wen, ZHANG Zong–Ye, YUAN X Q. Commun. Theor. Phys., 1999, 31: 1; ZHANG Zong–Ye, YU You–Wen, CHING C R et al. Phys. Rev., 2000, C61: 0652044 ZHANG Zong–Ye, YU You–Wen, DAI Lian–Rong. HEP NP, 1996, 20(4) : 363–368 (in Chinese)(张宗烨,余友文,戴连荣.高能物理与核物理,1996,20(4) :363) 5 ZHANG Zong–Ye, YU You–Wen, SHEN Peng–Mian et al. Nucl. Phys., 1997, A625: 59 6 LI Q B, SHEN P N, ZHANG Z Y et al. Nucl. Phys., 2001, A683: 487 7 YUAN X Q, ZHANG Z Y, YU Y W et al. Phys. Rev., 1999, C60: 045203 8 ZHANG Zong–Ye, LI Guang–Lie, SHEN Jian–Ping. Transactions of the New York Academy of Sciences Series II, 1980,40:274–286

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YU You-Wen and ZHANG Zong-Ye. Quark Exchange Effect in Two Baryon Systems[J]. Chinese Physics C, 2002, 26(S1): 54-62.

YU You-Wen and ZHANG Zong-Ye. Quark Exchange Effect in Two Baryon Systems[J]. Chinese Physics C, 2002, 26(S1): 54-62. shu

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Received: 1900-01-01
Revised: 1900-01-01

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