Beyond special relativity at second order

Carmona, J.M. (Universidad de Zaragoza) ; Cortés, J.L. (Universidad de Zaragoza) ; Relancio, J.J.

Resumen: The study of generic, nonlinear, deformations of special relativity parametrized by a high-energy scale M, which was carried out at first order in 1/M in J. M. Carmona, J. L. Cortés, and F. Mercati, Phys. Rev. D 86, 084032 (2012), is extended to second order. This can be done systematically through a ("generalized") change of variables from momentum variables that transform linearly. We discuss the different perspectives on the meaning of the change of variables, obtain the coefficients of modified composition laws and Lorentz transformations at second order, and work out how ¿-Poincaré, the most commonly used example in the literature, is reproduced as a particular case of the generic framework exposed here.

Idioma: Inglés

DOI: 10.1103/PhysRevD.94.084008

Año: 2016

Publicado en: PHYSICAL REVIEW. D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY 94, 8 (2016), 084008 [18 pp.]
ISSN: 1550-7998

Financiación: info:eu-repo/grantAgreement/ES/DGA/E24-2
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FPA2015-65745-P

Tipo y forma: Article (Published version)

Área (Departamento): Física Atómica, Molecular y Nuclear (Departamento de Física Teórica)
Área (Departamento): Física Teórica (Departamento de Física Teórica)