Constraints on neutrino speed, weak equivalence principle violation, Lorentz invariance violation, and dual lensing from the first high-energy astrophysical neutrino source TXS 
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Laha, Ranjan

doi:10.1103/physrevd.100.103002

Cited by 34 publications

(21 citation statements)

References 145 publications

(148 reference statements)

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“…Some works have used IC-170922A event to constrain the neutrino velocity and the LIV by the timeof-flight delay, e.g., Refs. [16][17][18]. In this work, we will examine the constraints on the superluminal neutrino velocity and the corresponding LIV due to the energy loss of vacuum pair production process for IC-170922A event.…”

Section: Introductionmentioning

confidence: 99%

Limiting superluminal neutrino velocity and Lorentz invariance violation by neutrino emission from the blazar TXS 0506+056

Wang

Shao

et al. 2020

Phys. Rev. D

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The detection of high-energy neutrino coincident with the blazar TXS 0506 þ 056 provides a unique opportunity to test Lorentz invariance violation (LIV) in the neutrino sector. Thanks to the precisely measured redshift, i.e., z ¼ 0.3365, the comoving distance of the neutrino source is determined. In this work, we obtain and discuss the constraints on the superluminal neutrino velocity δ ν and the LIV by considering the energy loss of superluminal neutrino during propagation. Given superluminal electron velocity (δ e ≥ 0), a very stringent constraint on superluminal neutrino velocity can be reached, i.e., δ ν ≲ 1.3 × 10 −18 , corresponding to the quantum gravity (QG) scale M QG;1 ≳ 5.7 × 10 3 M Pl and M QG;2 ≳ 9.3 × 10 −6 M Pl for linear (quadratic) LIV, which are ∼12 orders of magnitude tighter for linear LIV and ∼9 orders tighter for quadratic LIV compared to the time-of-flight constraint from MeV neutrinos of SN 1987A. While given the subluminal electron velocity, a weaker constraint on the superluminal neutrino velocity is obtained, i.e., δ ν ≲ 8 × 10 −17 , which is consistent with the conclusions of previous works. We also study the neutrino detection probability due to the distortion of neutrino spectral shape during propagation, which gives slightly weaker constraints than above by a factor of ∼2.

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Section: Introductionmentioning

confidence: 99%

Limiting superluminal neutrino velocity and Lorentz invariance violation by neutrino emission from the blazar TXS 0506+056

Wang

Shao

et al. 2020

Phys. Rev. D

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“…The detection of a neutrino event detected by the IceCube collaboration in temporal and spacial coincidence with a γ-ray flare from the blazar TXS 0506+056 37 has enabled an analysis of the limits on the velocity difference between neutrinos and photons, δ νγ . 38,39 The result from Ref. 38 gives…”

Section: Velocity Difference Between Neutrinos and Photons From Txs 0...mentioning

confidence: 97%

Testing Lorentz Invariance with Neutrinos

Stecker

2022

Preprint

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Today we say that the law of relativity is supposed to be true at all energies, but someday somebody may come along and say how stupid we were. We do not know where we are stupid until we stick our neck out...And the only way to find out that we are wrong is to find out what our predictions are. It is absolutely necessary to make constructs.-Richard FeynmanThe search for a theory that unifies general relativity and quantum theory has focused attention on models of physics at the Planck scale. One possible consequence of models such as string theory may be that Lorentz invariance is not an exact symmetry of nature. We discuss here some possible experimental and observational tests of Lorentz invariance involving neutrino physics and astrophysics.

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“…The majority of previous attempts to constrain violations of the WEP via ∆γ ij with GRBs [18,[51][52][53][54], FRBs [6,[55][56][57][58], Supernovae [59,60], Gravitational Waves [61][62][63][64][65][66][67][68][69], Blazar Flares [70][71][72][73][74] or Pulsars [75][76][77][78] have assumed that the gravitational potential is dominated by the contribution from the Milky Way and/or other massive objects such as the Laniakea supercluster. This has two major shortcomings for distant sources: firstly the gravitational potential in Equation 2 should be a fluctuation about the cosmological mean (and thus can take either sign, unlike in the multiple-source approximation where it is strictly additive), and secondly the long range behaviour of the gravitational potential means that we cannot neglect the large-scale distribution of mass [8,9].…”

Section: B Comparison With the Literaturementioning

confidence: 99%

Constraints on Equivalence Principle Violation from Gamma Ray Bursts

Bartlett,

Bergsdal,

Desmond

et al. 2021

Preprint

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Theories of gravity that obey the Weak Equivalence Principle have the same Parametrised Post-Newtonian parameter γ for all particles at all energies. The large Shapiro time delays of extragalactic sources allow us to put tight constraints on differences in γ between photons of different frequencies from spectral lag data, since a non-zero ∆γ would result in a frequency-dependent arrival time. The majority of previous constraints have assumed that the Shapiro time delay is dominated by a few local massive objects, although this is a poor approximation for distant sources. In this work we consider the cosmological context of these sources by developing a source-by-source, Monte Carlo-based forward model for the Shapiro time delays by combining constrained realisations of the local density field using the BORG algorithm with unconstrained large-scale modes. Propagating uncertainties in the density field reconstruction and marginalising over an empirical model describing other contributions to the time delay, we use spectral lag data of Gamma Ray Bursts from the BATSE satellite to constrain ∆γ < 3.4 × 10 −15 at 1σ confidence between photon energies of 25 keV and 325 keV.

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Constraints on neutrino speed, weak equivalence principle violation, Lorentz invariance violation, and dual lensing from the first high-energy astrophysical neutrino source TXS 0506+056

Cited by 34 publications

References 145 publications

Limiting superluminal neutrino velocity and Lorentz invariance violation by neutrino emission from the blazar TXS 0506+056

Limiting superluminal neutrino velocity and Lorentz invariance violation by neutrino emission from the blazar TXS 0506+056

Testing Lorentz Invariance with Neutrinos

Constraints on Equivalence Principle Violation from Gamma Ray Bursts

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