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《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2018, Vol. 42> Issue(10) : 103106 DOI: 10.1088/1674-1137/42/10/103106

Electromagnetic form factors of Λc in the space-like momentum region

  • 1.

      College of Physics and Information Engineering, Shanxi Normal University, Linfen 041004, China

  • 2.

      Center for Ecological and Environmental Sciences, Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, 710072, China

  • 3.

      College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China

  • We studied the electromagnetic form factors (EMFFs) of Λc and the contributions of the quark and diquark currents to the EMFFs of Λc in the space-like region in the Bethe-Salpeter equation approach with instantaneous approximation. In this picture, baryon Λc can be regarded as a two-body c(ud) system. We found that for different values of parameters the contribution of quark and diquark currents to the EMFFs of Λc is very different, while their total contribution to the EMFFs of Λc is similar. The EMFFs of Λc are similar to those of other baryons (proton, Ξ-, and Σ+) with a peak at ω=1, where ω=v'·v is the velocity transfer between the initial state (with velocity v) and the final state (with velocity v) of Λc.
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  • References

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Liang-Liang Liu, Chao Wang and Xin-Heng Guo. Electromagnetic form factors of Λc in the space-like momentum region[J]. Chinese Physics C, 2018, 42(10): 103106. doi: 10.1088/1674-1137/42/10/103106
Liang-Liang Liu, Chao Wang and Xin-Heng Guo. Electromagnetic form factors of Λc in the space-like momentum region[J]. Chinese Physics C, 2018, 42(10): 103106.  doi: 10.1088/1674-1137/42/10/103106 shu
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Received: 2018-06-22
Fund

    Supported by the Fundamental Research Funds for the Central Universities of China (31020170QD052), the Natural Science Basic Research Plan in Shaanxi Province of China (2018JQ1002) and the National Natural Science Foundation of China (11775024, 11575023).

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Electromagnetic form factors of Λc in the space-like momentum region

    Corresponding author: Liang-Liang Liu,
    Corresponding author: Xin-Heng Guo,
  • 1.  College of Physics and Information Engineering, Shanxi Normal University, Linfen 041004, China
  • 2.  Center for Ecological and Environmental Sciences, Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, 710072, China
  • 3.  College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
  • Received Date: 2018-06-22
  • Available Online: 2018-10-05
Fund Project:  Supported by the Fundamental Research Funds for the Central Universities of China (31020170QD052), the Natural Science Basic Research Plan in Shaanxi Province of China (2018JQ1002) and the National Natural Science Foundation of China (11775024, 11575023).

Abstract: We studied the electromagnetic form factors (EMFFs) of Λc and the contributions of the quark and diquark currents to the EMFFs of Λc in the space-like region in the Bethe-Salpeter equation approach with instantaneous approximation. In this picture, baryon Λc can be regarded as a two-body c(ud) system. We found that for different values of parameters the contribution of quark and diquark currents to the EMFFs of Λc is very different, while their total contribution to the EMFFs of Λc is similar. The EMFFs of Λc are similar to those of other baryons (proton, Ξ-, and Σ+) with a peak at ω=1, where ω=v'·v is the velocity transfer between the initial state (with velocity v) and the final state (with velocity v) of Λc.

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