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

TL;DR

This paper explores how unparticle physics could explain the large CP phase observed in B(s) mixing, tightening constraints on unparticle couplings and excluding some scalar unparticle scenarios.

Contribution

It analyzes the impact of recent CP phase measurements on unparticle models, providing improved bounds and excluding certain scalar unparticle scenarios.

Findings

CP phase constraints tighten unparticle coupling bounds by 2-4 times

Scalar unparticle scenario excluded by 3 sigma CP phase measurement

Inclusion of CP phase data enhances understanding of B(s) mixing

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).