New axion searches at flavor factories

• Main Authors: Xabier Cid Vidal, Alberto Mariotti, Diego Redigolo, Filippo Sala, Kohsaku Tobioka
• Format: Article
• Language: English
• Published: SpringerOpen 2019-01-01
• Series: Journal of High Energy Physics
• Subjects: Beyond Standard Model; Particle and resonance production; Hadron-Hadron scattering (experiments); Flavor physics; B physics
• Online Access: http://link.springer.com/article/10.1007/JHEP01(2019)113

Abstract We assess the impact of searches at flavor factories for new neutral resonances that couple to both photons and gluons. These are well motivated by “heavy axion” solutions of the strong CP problem and by frameworks addressing both Dark Matter and the Higgs hierarchy problem. We use LHCb public diphoton data around the B s mass to derive the current best limit on these resonances for masses between 4.9 and 6.3 GeV. We estimate that a future LHCb dedicated search would test an axion decay constant of O(TeV) for axion masses in the few-to-tens of GeV, being fully complementary to the low mass ATLAS and CMS searches. We also derive the impact of BABAR searches based on ϒ decays and the future Belle-II reach.