| Texto completo | |
| Autor(es): |
Lang, R. G.
;
de Souza, V.
;
SanMartin, OS
;
Mora, KSC
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | WAKE CONFERENCE 2021; v. 866, p. 6-pg., 2017-01-01. |
| Resumo | |
Testing Lorentz invariance is essential as it is one of the pillars of modern physics. Moreover, its violation is foreseen in several popular Quantum Gravity models. Several authors study the effects of Lorentz invariance violation (LIV) in the propagation of ultra-high energy cosmic rays. These particles are the most energetic events ever detected and therefore represent a promising framework to test LIV. In this work we present an analytic calculation of the inelasticity for any a + b -> c + d interaction using first order perturbation in the dispersion relation that violates Lorentz invariance. The inelasticity can be calculated by solving a third-order polynomial equation containing: a) the kinematics of the interaction, b) the LIV term for each particle and c) the geometry of the interaction. We use the inelasticity we calculate to investigate the proton propagation in the intergalactic media. The photopion production of the proton interaction with the CMB is taken into account using the inelasticity and the attenuation length in different LIV scenarios. We show how the allowed phase space for the photopion production changes when LIV is considered for the interaction. The calculations presented here are going to be extended in order to calculated the modified ultra-high energy cosmic rays spectrum and compare it to the data. (AU) | |
| Processo FAPESP: | 10/07359-6 - Estudo dos raios cósmicos de mais altas energias com o Observatório Pierre Auger |
| Beneficiário: | Carola Dobrigkeit Chinellato |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 14/26816-0 - Invariância de Lorentz no contexto de astrofísica de partículas |
| Beneficiário: | Rodrigo Guedes Lang |
| Modalidade de apoio: | Bolsas no Brasil - Mestrado |