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Chinese Physics C> 2018, Vol. 42> Issue(9) : 093106 DOI: 10.1088/1674-1137/42/9/093106

Gravitational Waves, baryon asymmetry of the universe and electric dipole moment in the CP-violating NMSSM

  • 1.

     Department of Physics, Chongqing University, Chongqing 401331, China

  • 2.

     Department of Physics, Chung-Ang University, Seoul 06974, Korea

  • 3.

      CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China

  • 4.

     CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China

  • 5.

     CAS Center for Excellence in Particle Physics, Beijing 100049, China

  • 6.

     School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China

  • 7.

     Center for High Energy Physics, Peking University, Beijing 100871, China

  • In this work, we make the first study of electroweak baryogenesis (EWBG) based on the LHC data in the CP-violating next-to-minimal supersymmetric model (NMSSM) where a strongly first order electroweak phase transition (EWPT) is obtained in the general complex Higgs potential. With representative benchmark points which pass the current LEP and LHC constraints, we demonstrate the structure of EWPT for those points and how a strongly first order EWPT is obtained in the complex NMSSM where the resulting gravitational wave production properties are found to be within the reaches of future space-based interferometers like BBO and Ultimate-DECIGO. We further calculate the generated baryon asymmetries where the CP violating sources are (1):higgsino-singlino dominated, (2):higgsino-gaugino dominated or (3):from both sources. It is shown that all three representing scenarios could evade the strong constraints set by various electric dipole moments (EDM) searches where cancellations among the EDM contributions occur at the tree level (higgsino-singlino dominated) or loop level (higgsino-gaugino dominated). The 125 GeV SM like Higgs can be either the second lightest neutral Higgs H2 or the third lightest neutral Higgs H3. Finally, we comment on the future direct and indirect probe of CPV in the Higgs sector from the collider and EDM experiments.
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Ligong Bian, Huai-Ke Guo and Jing Shu. Gravitational Waves, baryon asymmetry of the universe and electric dipole moment in the CP-violating NMSSM[J]. Chinese Physics C, 2018, 42(9): 093106. doi: 10.1088/1674-1137/42/9/093106
Ligong Bian, Huai-Ke Guo and Jing Shu. Gravitational Waves, baryon asymmetry of the universe and electric dipole moment in the CP-violating NMSSM[J]. Chinese Physics C, 2018, 42(9): 093106.  doi: 10.1088/1674-1137/42/9/093106 shu
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Received: 2018-03-16
Revised: 2018-06-09
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    The work of LGB is Supported by the National Natural Science Foundation of China (11605016, 11647307), Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2016R1A2B4008759), and Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2017H1D3A1A01014046)

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Gravitational Waves, baryon asymmetry of the universe and electric dipole moment in the CP-violating NMSSM

    Corresponding author: Ligong Bian,
    Corresponding author: Huai-Ke Guo,
    Corresponding author: Jing Shu,
  • 1. Department of Physics, Chongqing University, Chongqing 401331, China
  • 2. Department of Physics, Chung-Ang University, Seoul 06974, Korea
  • 3.  CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 4. CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 5. CAS Center for Excellence in Particle Physics, Beijing 100049, China
  • 6. School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
  • 7. Center for High Energy Physics, Peking University, Beijing 100871, China
  • Received Date: 2018-03-16
  • Accepted Date: 2018-06-09
  • Available Online: 2018-09-05
Fund Project:  The work of LGB is Supported by the National Natural Science Foundation of China (11605016, 11647307), Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2016R1A2B4008759), and Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2017H1D3A1A01014046)

Abstract: In this work, we make the first study of electroweak baryogenesis (EWBG) based on the LHC data in the CP-violating next-to-minimal supersymmetric model (NMSSM) where a strongly first order electroweak phase transition (EWPT) is obtained in the general complex Higgs potential. With representative benchmark points which pass the current LEP and LHC constraints, we demonstrate the structure of EWPT for those points and how a strongly first order EWPT is obtained in the complex NMSSM where the resulting gravitational wave production properties are found to be within the reaches of future space-based interferometers like BBO and Ultimate-DECIGO. We further calculate the generated baryon asymmetries where the CP violating sources are (1):higgsino-singlino dominated, (2):higgsino-gaugino dominated or (3):from both sources. It is shown that all three representing scenarios could evade the strong constraints set by various electric dipole moments (EDM) searches where cancellations among the EDM contributions occur at the tree level (higgsino-singlino dominated) or loop level (higgsino-gaugino dominated). The 125 GeV SM like Higgs can be either the second lightest neutral Higgs H2 or the third lightest neutral Higgs H3. Finally, we comment on the future direct and indirect probe of CPV in the Higgs sector from the collider and EDM experiments.

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