The University of Southampton
University of Southampton Institutional Repository

Unparticles at heavy flavor scales: CP violating phenomena

Zwicky, Roman (2008) Unparticles at heavy flavor scales: CP violating phenomena Physical Review D, 77, (3), 036004-[17pp]. (doi:10.1103/PhysRevD.77.036004).

Record type: Article


Coupling the scale invariant unparticle sector to flavor physics and assuming that it remains scale invariant I investigate its consequences in heavy flavor physics. A characteristic feature of unparticle physics is a CP-even phase leading to novel CP violating phenomena. The phase is large, based on the assumption that the unparticle sector is strongly self-coupled. I consider the CP asymmetry in the leptonic decay B+ ?+? and the hadronic decay Bd ?D+D-, taking into account constraints of branching ratios and time dependent CP asymmetries. It turns out that the CP asymmetry can be very large even for small couplings because the unparticle interaction term has a lower scaling dimension than the four-Fermi weak interaction term. CP asymmetries in leptonic decays such as B+ ? ?+ v are neither experimentally searched for nor predicted by any other model. I show that the novel CP violation is consistent with the CPT theorem. I identify the CP compensating mode in the unparticle sector and explicitly demonstrate the exact cancellation as demanded by the CPT theorem

Full text not available from this repository.

More information

Published date: 2008


Local EPrints ID: 145415
ISSN: 1550-7998
PURE UUID: ace1ba11-8f8f-43b3-971e-94724c01fa22

Catalogue record

Date deposited: 25 May 2010 08:32
Last modified: 18 Jul 2017 23:06

Export record



Author: Roman Zwicky

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.