Results 121 to 130 of about 25,203 (212)
Is Lorentz invariance violation found?
Lorentz invariance violation (LIV) has long been recognized as an observable low-energy signature of quantum gravity. In spite of a great effort to detect LIV effects, so far only lower bounds have been derived. The high energy photons from the gamma ray burst GRB 221009A have been detected by the LHAASO collaboration and one at ${\cal E} \simeq 251 \,
Galanti, Giorgio, Roncadelli, Marco
openaire +2 more sources
Simulating electromagnetic cascades with Lorentz invariance violation
Classical and Quantum GravityAbstract Lorentz invariance violation (LIV) is a phenomenon featuring in various quantum gravity models whereby Lorentz symmetry is broken at high energies, potentially impacting the behaviour of particles and their interactions. Here we investigate the phenomenology of LIV within the context of gamma-ray–induced electromagnetic cascades.
Saveliev, Andrey, Alves Batista, Rafael
openaire +3 more sources
MACRO constraints on violation of Lorentz invariance [PDF]
Nuclear Physics B - Proceedings Supplements, 2007 3 pages, 2 figures. Presented at NOW 2006: Neutrino Oscillation Workshop, Conca Specchiulla, Otranto, Italy, Sep 2006. To be published in Nucl. Phys. B (Proc. Suppl.)
openaire +2 more sources
Neutrino oscillations and Lorentz invariance violation in a Finslerian geometrical model
European Physical Journal C: Particles and Fields, 2018 Neutrino oscillations are one of the first evidences of physics beyond the Standard Model (SM). Since Lorentz invariance is a SM fundamental symmetry, recently also neutrino physics has been explored to verify this symmetry eventual modification and its ...
Vito Antonelli +2 more
doaj +1 more source
Spectral Lags of 90 Swift Gamma-Ray Bursts and the Constraint on the Lorentz Invariance Violation
The Astrophysical JournalThe arrival times of photons with different energy could be different, even when they are emitted from the same source simultaneously. Such a spectral lag is a common property among high-energy astrophysics phenomena like gamma-ray bursts (GRBs).
Bin Liao, Yuan-Chuan Zou, Wei-Hua Lei
doaj +1 more source
Impact of Lorentz Invariance Violation at DUNE
, 2020 We examine the impact of Lorentz Invariance Violation (LIV) in measuring the octant of $\theta_{23}$ and CP phases at DUNE. We consider the LIV parameters $a_{e\mu}$ and $a_{e\tau}$, which induce an additional interference term in oscillation probabilities. Taking one LIV parameter at-a-time ($|a_{e\mu}| = |a_{e\tau}| = 5 \times 10^{-24}$ GeV), we find
Sanjib Kumar Agarwalla, Mehedi Masud
openaire +2 more sources
Lorentz invariance violation and symmetry in Randers–Finsler spaces
Physics Letters B, 2008 Lorentz Invariance violation is a common feature of new physics beyond the standard model. We show that the symmetry of Randers spaces deduces a modified dispersion relation with characteristics of Lorentz Invariance violation. The counterparts of the Lorentz transformation in the Einstein's Special Relativity are presented explicitly.
Chang, Zhe, Li, Xin
openaire +3 more sources
ICECUBE NEUTRINOS AND LORENTZ INVARIANCE VIOLATION
The Astrophysical Journal, 2015 The IceCube neutrino telescope has found so far no evidence of gamma-ray burst (GRB) neutrinos. We here notice that these results assume the same travel times from source to telescope for neutrinos and photons, an assumption that is challenged by some much-studied pictures of spacetime quantization.
AMELINO-CAMELIA, Giovanni +2 more
openaire +3 more sources
High energy neutrino oscillation at the presence of the Lorentz Invariance Violation
, 2012 Due to quantum gravity fluctuations at the Planck scale, the space-time manifold is no longer continuous, but discretized. As a result the Lorentz symmetry is broken at very high energies. In this article, we study the neutrino oscillation pattern due to
Amelino-Camelia G. +8 more
core +1 more source
Neutrino oscillations and Lorentz invariance violation
, 2016 "XXV ECRS 2016 Proceedings - eConf C16-09-04.3". Contribution to the 25th edition of the European Cosmic Ray Symposium, September 5 to 9 2016, Turin, Italy.
Alavi, S. A., Madise, M. Dehghani
openaire +2 more sources