Decay of Z Boson into Photon and Unparticle
High Energy Physics - Phenomenology
2010-10-27 v1
Abstract
We study the decay of the standard model Z boson into unparticle plus a single photon through a one-loop process. As in the anomaly type decay, only the axial-vector part of the Z coupling matching with the vector unparticle and/or the vector part of the Z coupling matching with the axial-vector unparticle can give a nonzero contribution to the decay. We show that the photon spectrum terminates at the end point in accord with Yang's theorem. Existing data on single photon production at LEP I is used to constrain the unparticle sector.
Keywords
Cite
@article{arxiv.0801.1762,
title = {Decay of Z Boson into Photon and Unparticle},
author = {Kingman Cheung and Thomas W. Kephart and Wai-Yee Keung and Tzu-Chiang Yuan},
journal= {arXiv preprint arXiv:0801.1762},
year = {2010}
}
Comments
12 pages, 2 figures plus 1 table