Z boson decay to photon plus Kaluza-Klein graviton in large extra dimensions
Abstract
In the large extra dimensional ADD scenario, Z bosons undergo a one-loop decay into a photon and Kaluza-Klein towers of gravitons/gravi-scalars. We calculate such a decay width, extending previous arguments about the general form of the four-dimensional on-shell amplitude. The amplitudes calculated are relevant to processes in other extra dimensional models where the Standard Model fields are confined to a 4-brane.
Keywords
Cite
@article{arxiv.0705.1953,
title = {Z boson decay to photon plus Kaluza-Klein graviton in large extra dimensions},
author = {Ben C. Allanach and Jordan P. Skittrall and K. Sridhar},
journal= {arXiv preprint arXiv:0705.1953},
year = {2009}
}
Comments
47 pages, uses feynmp for diagrams. v2: typographical corrections for letter-sized paper and to correct feynmf parsing error. v3: minor error in polarisation averaging and reference corrected. v4: reflects changes for published version; arithmetic error corrected and reference updated; section on transversality conditions not present in published version retained