Nonperturbative Quark Propagator and Study of Nontrivial <i>Q</i>-Dependence in Nucleon Structure Functions

Yang Jianjun; Ma Boqiang; Li Guanglie

Chinese Physics C> 1997, Vol. 21> Issue(S1) : 471-482

Nonperturbative Quark Propagator and Study of Nontrivial Q-Dependence in Nucleon Structure Functions

1 Department of Physics, Nanjing Normal University, Nanjing, China;
2 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China

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Abstract：
In consideration of the lowest-order nonperturbative effect due to the quark condensate <qq> and the gluon condensate <GG> on the quark propagator, we calculate the QCD nonperturbative quark propagator under the chain approximation. Using the obtained nonperturbative quark propagator, we analyze the nonperturbative effect in the nucleon structure function and show the nontrivial Q²-dependence in the nucleon structure function.
- quark condensate ,
- nonperturbative quark propagator ,
- nucleon structure function

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Yang Jianjun, Ma Boqiang and Li Guanglie. Nonperturbative Quark Propagator and Study of Nontrivial Q-Dependence in Nucleon Structure Functions[J]. Chinese Physics C, 1997, 21(S1): 471-482.

Yang Jianjun, Ma Boqiang and Li Guanglie. Nonperturbative Quark Propagator and Study of Nontrivial Q-Dependence in Nucleon Structure Functions[J]. Chinese Physics C, 1997, 21(S1): 471-482. shu

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Received: 1996-01-22

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Supported by the National Natural Science Foundation of China.

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Nonperturbative Quark Propagator and Study of Nontrivial Q-Dependence in Nucleon Structure Functions

1 Department of Physics, Nanjing Normal University, Nanjing, China;
2 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China

Received Date: 1996-01-22

Fund Project: Supported by the National Natural Science Foundation of China.

Abstract: In consideration of the lowest-order nonperturbative effect due to the quark condensate <qq> and the gluon condensate <GG> on the quark propagator, we calculate the QCD nonperturbative quark propagator under the chain approximation. Using the obtained nonperturbative quark propagator, we analyze the nonperturbative effect in the nucleon structure function and show the nontrivial Q²-dependence in the nucleon structure function.