C.-Q. Geng

collaborators

2 papers

hep-ph2010

Cosmological birefringence due to CPT-even Chern-Simons-like term with Kalb-Ramond and scalar fields

Shih-Hao Ho, W. F. Kao, Kazuharu Bamba +1

We study the CPT-even dimension-six Chern-Simons-like term by including dynamical Kalb-Ramond and scalar fields to examine the cosmological birefringence. We show that the combined…

hep-ph1996

Lepton Polarization Asymmetry in $B \to K^{(*)} l^{+} l^{-}$

C. Q. Geng, C. P. Kao

We investigate the longitudinal lepton polarization asymmetry in the exclusive processes $B \to K l^{+} l^{-}$ and $B \to K^{*} l^{+} l^{-}$ . We include both short and long-distance contribution…

Cosmological birefringence due to CPT-even Chern-Simons-like term with Kalb-Ramond and scalar fields

Lepton Polarization Asymmetry in B→K(∗)l+l−

Lepton Polarization Asymmetry in $B \to K^{(*)} l^{+} l^{-}$