Octet baryon masses with two-gluon exchange effect

CHEN Yan; MA Bo-Qiang

doi:10.1088/1674-1137/33/12/055

Chinese Physics C> 2009, Vol. 33> Issue(12) : 1362-1365 DOI: 10.1088/1674-1137/33/12/055

Octet baryon masses with two-gluon exchange effect

CHEN Yan ^, ,
MA Bo-Qiang

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Abstract：
We report our investigation on the octet baryon spectrum in the nonrelativistic quark model by taking into account the two-gluon exchange effect. The calculated octet baryon masses agree better with the experimental data. It is also shown that the two-gluon exchange interactions bring a significant correction to the Gell-Mann−Okubo mass formula.

References

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. Durr S et al. Science , 2008, 322: 1224-12272. de Rujula A, Georgi H, Glashow S L. Phys. Rev. D , 1975,12: 147-1623. Capstick S, Roberts W. Prog. Part. Nucl. Phys. , 2000, 45:241-3314. Gupta S N, Radford S F. Phys. Rev. D , 1981, 24: 2309-23235. Gupta S N, Radford S F. Phys. Rev. D , 1982, 25: 3430-34326. Gupta S N, Radford S F, Repko W W. Phys. Rev. D , 1982,26: 3305-33087. Eiglsperger J. arXiv:0707.1269 [hep-ph]8. Isgur N, Karl G. Phys. Lett. , 1977, 72B: 109-1139. Isgur N, Karl G. Phys. Lett. , 1978, 74B: 353-35610. Isgur N, Karl G. Phys. Rev. D , 1978, 18: 4187-420511. Isgur N, Karl G. Phys. Rev. D , 1979, 19: 2653-267712. Isgur N, Karl G. Phys. Rev. D , 1979, 20: 1191-119413. Chao K-T, Isgur N, Karl G. Phys. Rev. D , 8, 1: 91, 23:155-16214. CHEN Y, MA B Q. Preprint to appear, and CHEN Y,Ph.D. Thesis of Peking University15. Gupta S N, Radford S F. Phys. Rev. D , 1982, 25: 2690-269816. Particle Data Group, C. Amsler et al. Phys. Lett. B , 2008,667: 76

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CHEN Yan and MA Bo-Qiang. Octet baryon masses with two-gluon exchange effect[J]. Chinese Physics C, 2009, 33(12): 1362-1365. doi: 10.1088/1674-1137/33/12/055

CHEN Yan and MA Bo-Qiang. Octet baryon masses with two-gluon exchange effect[J]. Chinese Physics C, 2009, 33(12): 1362-1365. doi: 10.1088/1674-1137/33/12/055 shu

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Received: 2009-08-07
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Octet baryon masses with two-gluon exchange effect

CHEN Yan ^,
MA Bo-Qiang

Corresponding author: CHEN Yan,

Received Date: 2009-08-07
Accepted Date: 1900-01-01
Available Online: 2009-12-05

Abstract:

We report our investigation on the octet baryon spectrum in the nonrelativistic quark model by taking into account the two-gluon exchange effect. The calculated octet baryon masses agree better with the experimental data. It is also shown that the two-gluon exchange interactions bring a significant correction to the Gell-Mann−Okubo mass formula.