On the use of energy loss mechanisms to constrain Lorentz invariance violations

Autor:	Mazón, Diego
Rok vydání:	2014
Předmět:	High Energy Physics - Phenomenology Astrophysics - High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology High Energy Physics - Theory
Zdroj:	Phys. Rev. D 89, 056012 (2014)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.89.056012
Popis:	In light of recent and probably upcoming observations of very high energy astroparticles, such as those reported by the IceCube collaboration, we readdress the energy loss mechanism by Lorentz violating particles. We analytically show that Cohen-Glashow's formula for energy loss is connected with a Poisson distribution for the number of decays, whose large fluctuations prevent placing bounds on Lorentz invariance violations. However, this model ignores the sharp change in the decay width after each process. We propose replacing Poisson statistics with a new distribution that takes this into account. We study the average final energy and its fluctuations according to the new statistics, contrasting it with Cohen-Glashow's result, and discussing the reliability of energy loss mechanisms to constrain violations of Lorentz invariance. Comment: 10 pages, 7 figures. v2: A few lines added in Sec. IV. Published in Physical Review D
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1401.2964 Zobrazit plný text záznamu View this record from Arxiv