Limits on neutrino Lorentz violation from multimessenger observations of TXS 0506+056

Ellis, John; Mavromatos, Nikolaos; Sakharov, A.; Sarkisyan-Grinbaum, E.

doi:10.1016/j.physletb.2018.11.062

Cited by 53 publications

(46 citation statements)

References 46 publications

(81 reference statements)

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“…The best, unambiguous, non-dispersive limits on the neutrino sector come from SN 1987A (e.g., Longo 1987;Stodolsky 1988). Under the assumption that the $ 200 TeV neutrino IceCube-170922A association to the Fermi-LAT blazar flare from TXS 0506?056 is true (Aartsen et al 2018) and using the gamma-rays as the lowenergy baseline, dispersive and non-dispersive (using the gamma-rays as the low energy signal and the high energy neutrino) are improved by orders of magnitude (Ellis et al 2019) compared to the observations of SN 1987A (e.g., Ellis et al 2008). Should high energy neutrinos be detected from SGRBs it could shatter these limits given the small timescales and cosmological baselines.…”

Section: Lorentz Invariancementioning

confidence: 99%

Neutron star mergers and how to study them

Burns

2020

Living Rev Relativ

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Neutron star mergers are the canonical multimessenger events: they have been observed through photons for half a century, gravitational waves since 2017, and are likely to be sources of neutrinos and cosmic rays. Studies of these events enable unique insights into astrophysics, particles in the ultrarelativistic regime, the heavy element enrichment history through cosmic time, cosmology, dense matter, and fundamental physics. Uncovering this science requires vast observational resources, unparalleled coordination, and advancements in theory and simulation, which are constrained by our current understanding of nuclear, atomic, and astroparticle physics. This review begins with a summary of our current knowledge of these events, the expected observational signatures, and estimated detection rates for the next decade. I then present the key observations necessary to advance our understanding of these sources, followed by the broad science this enables. I close with a discussion on the necessary future capabilities to fully utilize these enigmatic sources to understand our universe.

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Section: Lorentz Invariancementioning

confidence: 99%

Neutron star mergers and how to study them

Burns

2020

Living Rev Relativ

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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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“…The most promising opportunity is probably offered by the recently born and increasingly relevant multimessenger astronomy, looking for very high energy neutrinos emitted by astrophysical objects (like blazars, neutron stars, and so on) together with other electromagnetic and/or gravitational signals. Examples of this kind are offered by [97,98].…”

Section: Cpt and LIV In Neutrino Physicsmentioning

confidence: 99%

Phenomenological Effects of CPT and Lorentz Invariance Violation in Particle and Astroparticle Physics

2020

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It is well known that a fundamental theorem of Quantum Field Theory (QFT) set in flat spacetime ensures the CPT invariance of the theory. This symmetry is strictly connected to the Lorentz covariance, and consequently to the fundamental structure of spacetime. Therefore it may be interesting to investigate the possibility of departure from this fundamental symmetry, since it can furnish a window to observe possible effects of a more fundamental quantum gravity theory in a “lower energy limit”. Moreover, in the past, the inquiry of symmetry violations provided a starting point for new physics discoveries. A useful physical framework for this kind of search is provided by astroparticle physics, thanks to the high energy involved and to the long path travelled by particles accelerated by an astrophysical object and then revealed on Earth. Astrophysical messengers are therefore very important probes for investigating this sector, involving high energy photons, charged particles, and neutrinos of cosmic origin. In addition, one can also study artificial neutrino beams, investigated at accelerator experiments. Here we discuss the state of art for all these topics and some interesting new proposals, both from a theoretical and phenomenological point of view.

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Limits on neutrino Lorentz violation from multimessenger observations of TXS 0506+056

Cited by 53 publications

References 46 publications

Neutron star mergers and how to study them

Neutron star mergers and how to study them

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

Phenomenological Effects of CPT and Lorentz Invariance Violation in Particle and Astroparticle Physics

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