Chung-Hsien Chou

Learn More
In this paper we derive an exact master equation for two coupled quantum harmonic oscillators interacting via bilinear coupling with a common environment at arbitrary temperature made up of many harmonic oscillators with a general spectral density function. We first show a simple derivation based on the observation that the two harmonic oscillator model can(More)
We calculate the dominant contributions to the muon g−2 at the two-loop level due to a generic pseudoscalar boson that may exist in any exotic Higgs sector in most extensions of the standard model. The leading effect comes from diagrams of the Barr-Zee type. A sufficiently light pseudoscalar Higgs boson can give rise to contribution as large as the(More)
Guang-Yin Chen,1,2 Neill Lambert,2 Chung-Hsien Chou,1 Yueh-Nan Chen,1,* and Franco Nori2,3 1Department of Physics and National Center for Theoretical Sciences, National Cheng-Kung University, Tainan 701, Taiwan 2Advanced Science Institute, RIKEN, Wako-shi, Saitama 351-0198, Japan 3Physics Department, University of Michigan, Ann Arbor, Michigan 48109-1040,(More)
In the gauge-mediated supersymmetry breaking models with scalar tau as the next-to-lightest supersymmetric particle, a scalar lepton may decay dominantly into its superpartner, tau lepton, and the lightest scalar tau particle through l̃ → lτ±τ̃ 1 . We give detailed formulas for the three-body decay amplitudes and the polarization asymmetry of the outgoing(More)
There are many mechanisms of obtaining CP violation if one starts from a CP conserving higher dimensional theory[1, 2]. The idea is not new. For example, Thirring considered such possibility as early as 1972[1]. Recently, with the renewed interest in the extra dimensional theories due to many new approaches to the additional dimensions, new schemes of(More)
  • 1