# Threshold effects and Planck scale Lorentz violation: Combined constraints from high-energy astrophysics

@article{Jacobson2003ThresholdEA, title={Threshold effects and Planck scale Lorentz violation: Combined constraints from high-energy astrophysics}, author={Ted Jacobson and Stefano Liberati and David M. Mattingly}, journal={Physical Review D}, year={2003}, volume={67}, pages={124011} }

Recent work has shown that dispersion relations with Planck scale Lorentz violation can produce observable effects at energies many orders of magnitude below the Planck energy M. This opens a window on physics that may reveal quantum gravity phenomena. It has already constrained the possibility of Planck scale Lorentz violation, which is suggested by some approaches to quantum gravity. In this work we carry out a systematic analysis of reaction thresholds, allowing unequal deformation…

## Figures and Tables from this paper

## 45 Citations

### LORENTZ VIOLATION EFFECTS ON ASTROPHYSICAL PROPAGATION OF VERY HIGH ENERGY PHOTONS

- Physics
- 2010

Lorentz violation (LV) is predicted by some quantum gravity (QG) candidates, wherein the canonical energy–momentum dispersion relation, E2 = p2+m2, is modified. Consequently, new phenomena beyond the…

### Constraints on violation of Lorentz invariance from atmospheric showers initiated by multi-TeV photons

- Physics
- 2016

Parameterizing hypothetical violation of Lorentz invariance at high energies using the framework of effective quantum field theory, we discuss its effect on the formation of atmospheric showers by…

### Strong constraints on Lorentz violation using new γ-ray observations around PeV

- PhysicsChinese Physics C
- 2021

The tiny modification of dispersion relation induced by Lorentz violation (LV) is an essential issue in quantum gravity (QG) theories, which can be magnified into significant effects when dealing…

### Modelling Planck-scale Lorentz violation via analogue models

- Physics
- 2005

Astrophysical tests of Planck-suppressed Lorentz violations had been extensively studied in recent years and very stringent constraints have been obtained within the framework of effective field…

### Planck-scale Lorentz violation constrained by Ultra-High-Energy Cosmic Rays

- Physics
- 2009

We investigate the consequences of higher dimension Lorentz violating, CPT even kinetic operators that couple standard model fields to a non-zero vector field in an Effective Field Theory framework.…

### Planck-scale Lorentz violation constrained by Ultra-High-Energy Cosmic Rays

- Physics
- 2009

We investigate the consequences of higher dimension Lorentz violating, CPT even kinetic operators that couple standard model fields to a non-zero vector field in an Effective Field Theory framework.…

### Possible cosmogenic neutrino constraints on Planck-scale Lorentz violation

- Physics
- 2010

We study, within an effective field theory framework, O(E2MPl2) Planck-scale suppressed Lorentz invariance violation (LV) effects in the neutrino sector, whose size we parameterize by a dimensionless…

### Possible cosmogenic neutrino constraints on Planck-scale Lorentz violation

- Physics
- 2010

We study, within an effective field theory framework, O(E2MPl2) Planck-scale suppressed Lorentz invariance violation (LV) effects in the neutrino sector, whose size we parameterize by a dimensionless…

### Lorentz Invariance Violation on UHECR propagation

- Physics
- 2013

In the present work possible consequences of the Lorentz symmetry breaking are presented. Those consequences are encoded through the modification of dispersion relations which are applied to the…

## References

SHOWING 1-10 OF 117 REFERENCES

### TeV astrophysics constraints on Planck scale Lorentz violation

- Physics
- 2002

Cerenkov radiation, photon decay and photo-production of electron-positron pairs. We show that the parameter plane for cubic momentum terms in the dispersion relations is constrained to an order…

### A strong astrophysical constraint on the violation of special relativity by quantum gravity

- PhysicsNature
- 2003

The observation of 100-MeV synchrotron radiation from the Crab nebula is used to improve the previous limit by a factor of 40 million, ruling out this type of Lorentz violation, and thereby providing an important constraint on theories of quantum gravity.

### Observational limits on quantum geometry effects

- Physics
- 2002

Using a form of modified dispersion relations derived in the context of quantum geometry, we investigate limits set by current observations on potential corrections to Lorentz invariance. We use a…

### Proposed astrophysical test of Lorentz invariance

- Physics
- 2000

Working in the context of a Lorentz-violating extension of the standard model we show that estimates of Lorentz symmetry violation extracted from ultra-high-energy cosmic rays beyond the…

### Limits to Quantum Gravity Effects on Energy Dependence of the Speed of Light from Observations of TeV Flares in Active Galaxies

- Physics
- 1999

We have used data from a TeV {gamma} -ray flare associated with the active galaxy Markarian 421 to place bounds on the possible energy dependence of the speed of light in the context of an effective…

### Tests of quantum gravity from observations of γ-ray bursts

- PhysicsNature
- 1998

The recent confirmation that at least some γ-ray bursts originate at cosmological distances suggests that the radiation from them could be used to probe some of the fundamental laws of physics. Here…

### Deformed Lorentz Symmetry and High-Energy Astrophysics (II)

- Physics
- 2000

Lorentz symmetry violation (LSV) can be generated at the Planck scale, or at some other fundamental length scale, and naturally preserve Lorentz symmetry as a low-energy limit (deformed Lorentz…

### Planck-scale deformation of Lorentz symmetry as a solution to the ultrahigh energy cosmic ray and the TeV-photon paradoxes

- Physics
- 2001

One of the most puzzling current experimental physics paradoxes is the arrival on Earth of ultrahigh energy cosmic rays (UHECRs) with energies above the Greisen-Zatsepin-Kuzmin threshold…

### Possible astrophysical probes of quantum gravity

- Physics
- 2002

A satisfactory theory of quantum gravity will very likely require modification of our classical perception of space-time, perhaps by giving it a 'foamy' structure at scales of order the Planck…