The c-quark EDM and production of $h_c$ in $e^+e^-$ annihilation

Xiao-Jun Bi; Tai-Fu Feng; Xue-Qian Li; Jukka Maalampi; Xinmin Zhang

The c-quark EDM and production of $h_c$ in $e^+e^-$ annihilation

High Energy Physics - Phenomenology 2007-05-23 v1

Authors: Xiao-Jun Bi , Tai-Fu Feng , Xue-Qian Li , Jukka Maalampi , Xinmin Zhang

Abstract

We analyze the charm quark electric dipole moment (EDM) in the minimal supersymmetric extension of the standard model (MSSM), including important two-loop gluino contributions. Considering the experimental constraint on the neutron EDM, the theoretical prediction for the charm quark EDM can reach about $10^{-20}e\cdot cm$ . If taking into account the mixing between the scharm and stop quarks in the effective supersymmetry scenario, the charm quark EDM can be enhanced to $\sim 10^{-19}e\cdot cm$ . Direct production of the CP-odd $^1P_1$ state $h_c$ in $e^+e^-$ annihilation via the CP-violating process at the BES-III and CLEO-C is analyzed.

Keywords

electric dipole moment supersymmetric standard model gluino charm quark CP violation BES-III CLEO-C

Cite

@article{arxiv.hep-ph/0412360,
  title  = {The c-quark EDM and production of $h_c$ in $e^+e^-$ annihilation},
  author = {Xiao-Jun Bi and Tai-Fu Feng and Xue-Qian Li and Jukka Maalampi and Xinmin Zhang},
  journal= {arXiv preprint arXiv:hep-ph/0412360},
  year   = {2007}
}

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21 pages, 10 figures

The c-quark EDM and production of $h_c$ in $e^+e^-$ annihilation

Abstract

Keywords

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