Transition Radiation by Standard Model Neutrinos at an Interface

Autor:	Ioannisian, A. N., Ioannisian, D. A., Kazarian, N. A.
Rok vydání:	2011
Předmět:	High Energy Physics - Phenomenology Astrophysics - High Energy Astrophysical Phenomena
Druh dokumentu:	Working Paper
Popis:	We discuss the transition radiation process $\nu \to \nu \gamma$ at an interface of two media. The medium fulfills the dual purpose of inducing an effective neutrino-photon vertex and of modifying the photon dispersion relation. The transition radiation occurs when at least one of those quantities have different values in different media. We present a result for the probability of the transition radiation which is both accurate and analytic. For $E_\nu =1$MeV neutrino crossing polyethylene-vacuum interface the transition radiation probability is about $10^{-39}$ and the energy intensity (deposition) is about $10^{-34}$eV. At the surface of the neutron stars the transition radiation probability may be $\sim 10^{-20}$. Our result on three orders of magnitude is larger than the results of previous calculations.} Comment: invited talk, to appear in the proceedings of the XLVIth Rencontres de Moriond EW 2011
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1106.2285 Zobrazit plný text záznamu View this record from Arxiv