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Competitive subluminal LIV limits from ultra-high energy astrophysics

  • Universidade de São Paulo
    ,
  • Instituto de Física de São Carlos
Research Output:
Chapter in Book/Report/Conference proceeding
Conference contribution

Open access

Publication metrics

Metrics

SciVal
Author count
3
SciVal
Paper percentile
25

Abstract

In this contribution, we introduce subluminal Lorentz invariance violation (LIV) in the propagation of ultra-high energy photons. The energy threshold and the mean free path for the pair production considering LIV are calculated. The influence of the models for the sources of ultrahigh energy cosmic rays in the flux of GZK photons is discussed. The resulting fluxes for several sources models and LIV scenarios are obtained and compared to the upper limits on the photon flux from the Pierre Auger Observatory. Updated limits on the LIV coefficient of the order of d?0 & -10-20, d?1 & -10-38 eV and d?2 & -10-56 eV2 are imposed for the reference case. The possibility of testing superluminal LIV effects is also discussed.

Publication Information

Output type

Research Output:
Chapter in Book/Report/Conference proceeding
Conference contribution

Original language

English

Publication milestones

  • Published - 2019

Publication status

Published - 2019

Volume

358

Publication series

  • Publisher name: Sissa Medialab Srl
    Publication series name: Proceedings of Science

Publication IDs

  • Scopus: 85086250130
  • Scopus: 85127466341

Host publication title

Competitive subluminal LIV limits from ultra-high energy astrophysics

Access to documents

Related Event

Title

36th International Cosmic Ray Conference, ICRC 2019

Event type

Conference

Date

24/07/2019 - 01/08/2019

Location

MadisonUnited States

Funding Details

We acknowledge the support from Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo (FAPESP) through grants 2015/15897-1, 2016/24943-0, 2017/03680-3 and 2019/01653-4. We also acknowledge the National Laboratory for Scientific Computing (LNCC/MCTI, Brazil) for providing HPC resources of the SDumont supercomputer, which have contributed to the research results reported within this paper (sdumont.lncc.br).
FundersFunding numbers
LNCC
-
National Laboratory for Scientific Computing
-
FAPESP
2019/01653-4, 2017/03680-3, 2016/24943-0, 2015/15897-1
MCTI
-