Lepton-flavored dark matter

Journal Article · Fri May 01 00:00:00 EDT 2015 · Physics Letters B

DOI:https://doi.org/10.1016/j.physletb.2015.04.005· OSTI ID:1197804

Kile, Jennifer; Kobach, Andrew; Soni, Amarjit

In this work, we address two paradoxes. The first is that the measured dark-matter relic density can be satisfied with new physics at O(100 GeV–1 TeV), while the null results from direct-detection experiments place lower bounds of O(10 TeV) on a new-physics scale. The second puzzle is that the severe suppression of lepton-flavor-violating processes involving electrons, e.g. μ → 3e, τ → eμμ, etc., implies that generic new-physics contributions to lepton interactions cannot exist below O(10–100 TeV), whereas the 3.6σ deviation of the muon g-2 from the standard model can be explained by a new physics scale ⁺e^⁻ colliders. We suggest experimental tests for these ideas at colliders and for low-energy observables. (author)

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: FG02-91ER40684; AC05-06OR23100; FG02-97ER41029; AC02-98CH10886
• OSTI ID: 1197804
• Alternate ID(s): OSTI ID: 1184810
• Journal Information: Physics Letters B, Journal Name: Physics Letters B Vol. 744 Journal Issue: C; ISSN 0370-2693
• Publisher: Elsevier
• Country of Publication: Netherlands
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS