Implications from recent measurements on sin 2β and muon g − 2

The recent data on asymmetry in B → J/φK_S and muon g − 2 are discussed in the framework of standard model and beyond. Possible new phase effects besides the CKM phase are discussed in the processes concerning violation in B decays and muon anomalous magnetic moment (muon g − 2). It is found that the new phases will result in difference between angles β measured from B → J/φK_S and the one from global fit. The ration between them serves as a probe of not only new physics but also new phase besides the CKM phase In the case of muon g − 2, the new phase may change the interferences between various contributions. By including the new phases, some cancelations in the real coupling cases can be avoided and the large value of g − 2 observed in the recent measurements can be understood.