Chinese Physics C > 2004, Vol. 28 > Issue(8): 821-826

Contribution of SU(6) Breaking Effects in the Nucleon Form Factors

WANG Hong-Min^,,
ZHANG Ben-Ai

Graduate School,Chinese Academy of Engineering Physics,Beijing 100088,China

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Abstract：
Recently,the ratio of electric form factor to magnetic form factor for the neutron GEn/GMn,which contains important pieces of information on the internal structure of nucleon,was measured at the Thomas Jefferson National Accelerator Facility(JLab).The traditional relativistic constituent quark(RCQ)model appears to be successful in explaining the two form factors for the proton GEp/GMp,however the calculation results for the neutron is much bellow the experiments.For interpreting this phenomenon,we investigate the effects of SU(6) breaking.It is shown that the calculation results gets better close to experiments.

References

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WANG Hong-Min and ZHANG Ben-Ai. Contribution of SU(6) Breaking Effects in the Nucleon Form Factors[J]. Chinese Physics C, 2004, 28(8): 821-826.

WANG Hong-Min and ZHANG Ben-Ai. Contribution of SU(6) Breaking Effects in the Nucleon Form Factors[J]. Chinese Physics C, 2004, 28(8): 821-826. shu

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Received: 2003-11-03
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

Contribution of SU(6) Breaking Effects in the Nucleon Form Factors

WANG Hong-Min^,
ZHANG Ben-Ai

Corresponding author:WANG Hong-Min,

Graduate School,Chinese Academy of Engineering Physics,Beijing 100088,China

Received Date:2003-11-03
Accepted Date:1900-01-01
Available Online:2004-08-05

Abstract:Recently,the ratio of electric form factor to magnetic form factor for the neutron GEn/GMn,which contains important pieces of information on the internal structure of nucleon,was measured at the Thomas Jefferson National Accelerator Facility(JLab).The traditional relativistic constituent quark(RCQ)model appears to be successful in explaining the two form factors for the proton GEp/GMp,however the calculation results for the neutron is much bellow the experiments.For interpreting this phenomenon,we investigate the effects of SU(6) breaking.It is shown that the calculation results gets better close to experiments.