%0 Generic %1 gardner2019light %A Gardner, S. %A Yan, X. %D 2019 %K g-2 %T LIght scalars with lepton number to solve the $(g-2)_e$ anomaly %U http://arxiv.org/abs/1907.12571 %X Scalars that carry lepton number can help mediate would-be lepton-number-violating processes, such as neutrinoless double $\beta$ decay or lepton-scattering-mediated nucleon-antinucleon conversion. Here we show that such new scalars can also solve the anomaly in precision determinations of the fine-structure constant $\alpha$ from atom interferometry and from the electron's anomalous magnetic moment, $a_e (g-2)_e/2$, by reducing $|a_e|$. Study of the phenomenological constraints on these solutions favor a doubly-charged scalar with mass below the GeV scale. Significant constraints arise from the measurement of the parity-violating asymmetry in Møller scattering, and we consider the implications of the next-generation MOLLER experiment at Jefferson Laboratory and of an improved $a_e$ measurement.

@misc{gardner2019light, abstract = {Scalars that carry lepton number can help mediate would-be lepton-number-violating processes, such as neutrinoless double $\beta$ decay or lepton-scattering-mediated nucleon-antinucleon conversion. Here we show that such new scalars can also solve the anomaly in precision determinations of the fine-structure constant $\alpha$ from atom interferometry and from the electron's anomalous magnetic moment, $a_e \equiv (g-2)_e/2$, by reducing $|a_e|$. Study of the phenomenological constraints on these solutions favor a doubly-charged scalar with mass below the GeV scale. Significant constraints arise from the measurement of the parity-violating asymmetry in M{\o}ller scattering, and we consider the implications of the next-generation MOLLER experiment at Jefferson Laboratory and of an improved $a_e$ measurement.}, added-at = {2019-07-31T15:19:09.000+0200}, author = {Gardner, S. and Yan, X.}, biburl = {https://www.bibsonomy.org/bibtex/2cab183f9ebb1bec41d6de173b8905233/cmcneile}, description = {LIght scalars with lepton number to solve the $(g-2)_e$ anomaly}, interhash = {c7347c0194966c7929a1e448792d78f6}, intrahash = {cab183f9ebb1bec41d6de173b8905233}, keywords = {g-2}, note = {cite arxiv:1907.12571Comment: 21 pages, 4 figures}, timestamp = {2019-07-31T15:19:09.000+0200}, title = {LIght scalars with lepton number to solve the $(g-2)_e$ anomaly}, url = {http://arxiv.org/abs/1907.12571}, year = 2019 }