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Title: The tiny (g-2) muon wobble from small-μ supersymmetry

Journal Article · · Journal of High Energy Physics (Online)
ORCiD logo [1];  [2];  [3];  [4]
  1. Stanford Univ., CA (United States); UChicago
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, IL (United States)
  3. Wayne State Univ., Detroit, MI (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Chicago, IL (United States)

A new measurement of the muon anomalous magnetic moment has been recently reported by the Fermilab Muon g-2 collaboration and shows a 4.2σ departure from the most precise and reliable calculation of this quantity in the Standard Model. Assuming that this discrepancy is due to new physics, we consider its relation with other potential anomalies, especially in the muon sector, as well as clues from the early universe. Here, we comment on new physics solutions discussed extensively in the literature in the past decades, to finally concentrate on a simple supersymmetric model that also provides a dark matter explanation. We show results for an interesting region of supersymmetric parameter space that can be probed at the high luminosity LHC and future colliders, while leading to values of (gμ – 2) consistent with the Fermilab and Brookhaven (gμ – 2) measurements. Such a parameter region can simultaneously realize a Bino-like dark matter candidate compatible with direct detection constraints for small to moderate values of the Higgsino mass parameter |μ|.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Univ. of Chicago, IL (United States); Wayne State Univ., Detroit, MI (United States)
Sponsoring Organization:
Gordon and Betty Moore Foundation; National Science Foundation; USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
Aspen Center for Physics
Grant/Contract Number:
AC02-06CH11357; AC02-07CH11359; FG02-96ER40956; SC0009924; SC0013642; SC0021497
OSTI ID:
1821684
Report Number(s):
DOE-WSU-1497-1; EFI--21-3; FERMILAB-PUB--21-184-T; WSU-HEP--2101; arXiv:2104.03302
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 1 Vol. 2022; ISSN 1029-8479
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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