Unraveling unparticles through violation of atomic parity and rare beauty

Abstract

We put constraints on unparticle physics, specifically on the scale ${\Lambda }_{\text{U}}$ and the scale dimension $d_{\text{U}}$ of unparticle operators, using (i) measurements of atomic parity violation as well as (ii) branching ratio and CP asymmetry measurements in some rare non-leptonic B decay channels.

Comments: 11 pages, 3 figures; v2: minor typos settled, to appear in Phys Lett B; v3: minor changes in discussions following Eq.(8), matches PLB version