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Higher-Twist Effect in Pion Parton Distribution |
| Lihong Wan* and Jianhong Ruan* |
| Department of Physics, East China Normal University, Shanghai 200241, China |
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| Cite this article: |
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Lihong Wan and Jianhong Ruan 2021 Chin. Phys. Lett. 38 042501 |
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Abstract A higher-twist modified parton evolution equation is used to evolve the initial valence quark distributions in pions, which are derived based on light-front quantization via BLFQ collaboration. The results are consistent with the valence quark distributions of the E615 experiment, and the pion structure function of the H1 experiment. The structure function data highlight the necessity for a higher-twist modification in the small $x$ region. Comparisons with some other models are also given.
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Received: 07 December 2020
Published: 06 April 2021
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| PACS: |
12.38.Bx
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(Perturbative calculations)
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13.60.Hb
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(Total and inclusive cross sections (including deep-inelastic processes))
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25.80.Ek
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(Pion inelastic scattering)
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| Fund: Supported by the National Natural Science Foundation of China (Grant No. 11851303). |
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