Lorentz Symmetry Violation and Superluminal Particles at Future Colliders

Abstract

If textbook Lorentz invariance is actually a property of the equations describing a sector of the excitations of vacuum above some critical distance scale, several sectors of matter with different critical speeds in vacuum can coexist and an absolute rest frame (the vacuum rest frame) may exist without contradicting the apparent Lorentz invariance felt by "ordinary" particles (particles with critical speed in vacuum equal to $c$, the speed of light). Sectorial Lorentz invariance, reflected by the fact that all particles of a given dynamical sector have the same critical speed in vacuum, will then be an expression of a fundamental sectorial symmetry (e.g. preonic grand unification or extended supersymmetry) protecting a parameter of the equations of motion. Furthermore, the sectorial Lorentz symmetry may be only a low-energy limit, in the same way as the relation $\omega$ (frequency) = $c_s$ (speed of sound) $k$ (wave vector) holds for low-energy phonons in a crystal. In this context, phenomena such as the absence of Greisen-Zatsepin-Kuzmin cutoff and the stability of unstable particles at very high energy are basic properties of a wide class of noncausal models where local Lorentz invariance is broken introducing a fundamental length. Observable phenomena from Lorentz symmetry violation and superluminal sectors of matter are expected at very short wavelength scales, even if Lorentz symmetry violation remains invisible to standard low-energy tests. We discuss signatures of this new physics at LHC and at other possible future colliders.

Contributed Paper 438 to the EPS-HEP97 Conference, Jerusalem August 19 - 26, 1997 ; 6 pages, LaTex

References in corpus (8)

• Physical and Cosmological Implications of a Possible Class of Particles Able to Travel Faster than Light
• Absence of Greisen-Zatsepin-Kuzmin Cutoff and Stability of Unstable Particles at Very High Energy, as a Consequence of Lorentz Symmetry Violation
• Superluminal Particles and High-Energy Cosmic Rays
• Space, Time and Superluminal Particles
• Lorentz Invariance and Superluminal Particles
• Lorentz Symmetry Violation and Very High-Energy Cross Sections
• Possible Effects of Lorentz Symmetry Violation on the Interaction Properties of Very High-Energy Cosmic Rays
• High-Energy Nuclear Physics with Lorentz Symmetry Violation

Cited by in corpus (6)

• Robust Constraint on Lorentz Violation Using Fermi-LAT Gamma-Ray Burst Data
• Probes of Lorentz Violation
• Limits on Neutrino Lorentz Violation from Multimessenger Observations of TXS 0506+056
• Cosmic rays and tests of fundamental principles
• Superbradyons and some possible dark matter signatures
• Lorentz Symmetry Violation, Vacuum and Superluminal Particles