Massive vectors and loop observables: the g-2 case

作者：Biggio Carla^*; Bordone Marzia; Di Luzio Luca; Ridolfi Giovanni

来源：The Journal of High Energy Physics, 2016, 2016(10): 002.

DOI：10.1007/JHEP10(2016)002

• Beyond Standard Model
• Effective field theories

We discuss the use of massive vectors for the interpretation of some recent experimental anomalies, with special attention to the muon g-2. We restrict our discussion to the case where the massive vector is embedded into a spontaneously broken gauge symmetry, so that the predictions are not affected by the choice of an arbitrary energy cut-off. Extended gauge symmetries, however, typically impose strong constraints on the mass of the new vector boson and for the muon g-2 they basically rule out, barring the case of abelian gauge extensions, the explanation of the discrepancy in terms of a single vector extension of the standard model. We finally comment on the use of massive vectors for B-meson decay and di-photon anomalies.

• 出版日期2016-10-3