ar X iv : h ep - p h / 03 11 01 2 v 1 2 N ov 2 00 3 CP Test in J / ψ → γφφ Decay

ar X iv : h ep - p h / 03 11 01 2 v 2 2 7 N ov 2 00 3 CP Test in J / ψ → γφφ Decay

We propose to test CP symmetry in the decay J/ψ → γφφ, for which large data sample exists at BESII, and a data sample of 10 10 J/ψ's will be collected with BESIII and CLEO-C program. We suggest some CP asymmetries in this decay mode for CP test. Assuming that CP violation is introduced by the electric-and chromo-dipole moment of charm quark, these CP asymmetries can be predicted by using valenc...

ar X iv : h ep - p h / 03 01 11 4 v 2 1 J ul 2 00 3 Virtual and Soft Pair Corrections to Polarized Muon Decay Spectrum

Radiative corrections to the muon decay spectrum due to soft and virtual electron– positron pairs are calculated.

ar X iv : h ep - p h / 01 11 04 9 v 1 6 N ov 2 00 1 The QCD Phase Diagram and Explosive Astrophysics

ar X iv : h ep - p h / 02 11 38 2 v 1 2 5 N ov 2 00 2 Gold - plated Mode of CP - Violation in Decays of Ξ bc Baryons

ar X iv : h ep - p h / 01 11 17 2 v 2 1 8 N ov 2 00 1 Summary of Working Group 1 : Theory Part

I will summarize theoretical issues in Working Group 1 at Nufact’01. In particular I will clarify a controversy on the optimum baseline L muon energy Eμ for measurements of the CP phase at a neutrino factory. If the uncertainty of the matter effect is assumed to be ±10%, which may be slightly too pessimistic, then the results from two groups agree (L ∼ 1000km, Eμ ∼ 10GeV).