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Chinese Physics C> 2018, Vol. 42> Issue(5) : 051001 DOI: 10.1088/1674-1137/42/5/051001

Discovery potentials of doubly charmed baryons

  •  School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;
    2. Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics ofChinese Academy of Sciences, Lanzhou 730000, China;
    3. School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China;
    4. Institute of High Energy Physics, Chinese Academy of Sciences, YuQuanLu 19 B, Beijing 100049, China;
    5. School of Physics, University of Chinese Academy of Sciences, YuQuanLu 19 A, Beijing 100049, China;
    6. INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, School of Physics and Astronomy, Shanghai Jiao-Tong University, Shanghai 200240, China

  • The existence of doubly heavy flavor baryons has not been well established experimentally so far. In this Letter we systematically investigate the weak decays of the doubly charmed baryons, Ξcc++ and Ξcc+, which should be helpful for experimental searches for these particles. The long-distance contributions are first studied in the doubly heavy baryon decays, and found to be significantly enhanced. Comparing all the processes, Ξcc++→ Λc+K-π+π+ and Ξc+π+ are the most favorable decay modes for experiments to search for doubly heavy baryons.

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Fu-Sheng Yu, Hua-Yu Jiang, Run-Hui Li, Cai-Dian Lü, Wei Wang and Zhen-Xing Zhao. Discovery potentials of doubly charmed baryons[J]. Chinese Physics C, 2018, 42(5): 051001. doi: 10.1088/1674-1137/42/5/051001
Fu-Sheng Yu, Hua-Yu Jiang, Run-Hui Li, Cai-Dian Lü, Wei Wang and Zhen-Xing Zhao. Discovery potentials of doubly charmed baryons[J]. Chinese Physics C, 2018, 42(5): 051001.  doi: 10.1088/1674-1137/42/5/051001 shu
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Received: 2017-12-05
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    Supported by National Natural Science Foundation of China (11505083, 11505098, 11647310, 11575110, 11375208, 11521505, 11621131001, 11235005, 11447032, U1732101) and Natural Science Foundation of Shanghai (15DZ2272100)

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Discovery potentials of doubly charmed baryons

    Corresponding author: Fu-Sheng Yu,
    Corresponding author: Wei Wang,
  • School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;
    2. Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics ofChinese Academy of Sciences, Lanzhou 730000, China;
    3. School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China;
    4. Institute of High Energy Physics, Chinese Academy of Sciences, YuQuanLu 19 B, Beijing 100049, China;
    5. School of Physics, University of Chinese Academy of Sciences, YuQuanLu 19 A, Beijing 100049, China;
    6. INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, School of Physics and Astronomy, Shanghai Jiao-Tong University, Shanghai 200240, China
  • Received Date: 2017-12-05
  • Available Online: 2018-05-05
Fund Project:  Supported by National Natural Science Foundation of China (11505083, 11505098, 11647310, 11575110, 11375208, 11521505, 11621131001, 11235005, 11447032, U1732101) and Natural Science Foundation of Shanghai (15DZ2272100)

Abstract: The existence of doubly heavy flavor baryons has not been well established experimentally so far. In this Letter we systematically investigate the weak decays of the doubly charmed baryons, Ξcc++ and Ξcc+, which should be helpful for experimental searches for these particles. The long-distance contributions are first studied in the doubly heavy baryon decays, and found to be significantly enhanced. Comparing all the processes, Ξcc++→ Λc+K-π+π+ and Ξc+π+ are the most favorable decay modes for experiments to search for doubly heavy baryons.

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