Baryon Number as the Fourth Color

Abstract

We propose an extension of the Standard Model in which baryon number is promoted to be part of a non-Abelian gauge symmetry at high energies. Specifically, we consider the gauge group SU(4) x SU(2)_L x U(1)_X, where the SU(4) unifies baryon number and color. This symmetry is spontaneously broken down to the Standard Model gauge group at a scale which can be as low as a few TeV. The SU(4) structure implies that each SM quark comes along with an uncolored quark partner, the lightest of which is stabilized by the generalized baryon number symmetry and can play the role of dark matter. We explore circumstances under which one can realize a model of asymmetric dark matter whose relic abundance is connected to the observed baryon asymmetry, and discuss unique signatures that can be searched for at the LHC.

6 pages, 3 figures

References in corpus (4)

• Asymmetric Dark Matter
• Search for high-mass dilepton resonances in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• Search for physics beyond the standard model in dilepton mass spectra in proton-proton collisions at sqrt(s) = 8 TeV
• Strongest model-independent bound on the lifetime of Dark Matter

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• Baryon and Lepton Number Violation from Gravitational Waves
• Is There a Sign of New Physics in Beryllium Transitions?
• Asymmetric Dark Matter and Baryogenesis from $SU(2{)}_{\ell }$
• Unification and Local Baryon Number
• Sharing but not Caring: Dark Matter and the Baryon Asymmetry of the Universe
• Testing Unification and Dark Matter with Gravitational Waves
• Dark Matter from Unification of Color and Baryon Number
• Asymmetric Dark Matter from Gravitational Waves
• Gravitational Wave Signatures of Gauged Baryon and Lepton Number
• Dark Matter and Baryogenesis from Non-Abelian Gauged Lepton Number
• Probing the Neutrino Seesaw Scale with Gravitational Waves
• Symmetries, Dark Matter and Minicharged Particles