Baryon and Lepton Number as Local Gauge Symmetries

By P. Pérez, M. Wise. 2010

199 citations recorded by the source corpus.

We investigate a simple theory where baryon number (B) and lepton number (L) are local gauge symmetries. In this theory B and L are on the same footing and the anomalies are canceled by adding a single new fermionic generation. There is an interesting realization of the seesaw mechanism for neutrino masses. Furthermore, there is a natural suppression of flavor violation in the quark and leptonic sectors since the gauge symmetries and particle content forbid tree level flavor changing neutral currents involving the quarks or charged leptons. Also one finds that the stability of a dark matter candidate is an automatic consequence of the gauge symmetry. Some constraints and signals at the Large Hadron Collider are briefly discussed.

View Paper: https://www.semanticscholar.org/paper/668aa02eb69228313e99ae44cf5670b78539292a

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Citations in the corpus

• Particle physics models for the 17 MeV anomaly in beryllium nuclear decays (2016, background): “[90] P.”
• Stop the top background of the stop search (2012, methodology): “Examples are the little Higgs models with T -parity [25–28], models with the exotic fourth generation and dark matter [29], models with gauged baryon and lepton numbers [30], and so on.”
• Coupling-mass mapping of dijet peak searches (2013, background): “[39] C.”
• UltraViolet freeze-in (2014, background): “e spectrum includes right-handed neutrinos. If one assumes that DM is charged under B L, then the U(1) B Lgauge boson can provide a portal operator which connects the DM and the SM fermions, see e.g. [24]. If B Lis gauged, typically it must be broken at a high scale to give masses to the neutrinos v”