Classical ultrarelativistic bremsstrahlung in extra dimensions

Autor:	Gal'tsov, D. V., Kofinas, G., Spirin, P., Tomaras, T. N.
Rok vydání:	2010
Předmět:	High Energy Physics - Theory General Relativity and Quantum Cosmology High Energy Physics - Phenomenology
Zdroj:	JHEP 1005:055,2010
Druh dokumentu:	Working Paper
DOI:	10.1007/JHEP05(2010)055
Popis:	The emitted energy and the cross-section of classical scalar bremsstrahlung in massive particle collisions in D=4+d dimensional Minkowski space M_D as well as in the brane world M_4 \times T^d is computed to leading ultra-relativistic order. The particles are taken to interact in the first case via the exchange of a bulk massless scalar field \Phi and in the second with an additional massless scalar \phi confined together with the particles on the brane. Energy is emitted as \Phi radiation in the bulk and/or \phi radiation on the brane. In contrast to the quantum Born approximation, the classical result is unambiguous and valid in a kinematical region which is also specified. For D=4 the results are in agreement with corresponding expressions in classical electrodynamics. Comment: Preprint number added
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1003.2982 Zobrazit plný text záznamu View this record from Arxiv