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Baryon Number as the Fourth Color · Around

2015

Baryon Number as the Fourth Color

Fornal, Bartosz, Rajaraman, Arvind, Tait, Tim M. P.

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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.

Built on

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