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Title: Lepton-flavored dark matter

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 ⁺ecolliders. We suggest experimental tests for these ideas at colliders and for low-energy observables. (author)
Authors:
 [1] ;  [2] ;  [3]
  1. Univ. of Florida, Gainesville, FL (United States). Inst. for Fundamental Theory
  2. Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Physics Dept.
Publication Date:
Grant/Contract Number:
FG02-91ER40684; AC05-06OR23100; FG02-97ER41029; AC02-98CH10886
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 744; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1197804
Alternate Identifier(s):
OSTI ID: 1184810