The large CP phase in B(s) - anti-B(s) mixing and Unparticle Physics

Abstract

In this work we investigate the contribution to B(d,s) mixing from both scalar and vector unparticles in a number of scenarios. The emphasis of this work is to show the impact of the recently discovered 3 sigma evidence for new physics found in the CP phase of B(s) mixing. Here we show that the inclusion of the CP phase constraints for both B(d) and B(s) mixing improves the bounds set on the unparticle couplings by a factor of 2~4, and one particular scenario of scalar unparticles is found to be excluded by the 3 sigma measurement of phi(s).