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Title: Electron g - 2 foreshadowing discoveries at FCC-ee

Journal Article · · Physical Review. D.
 [1]; ORCiD logo [2]
  1. Brookhaven National Laboratory (BNL), Upton, NY (United States)
  2. Universidade de Santiago de Compostela (Spain)
+ Show Author Affiliations

A future $e^+e^-$ circular collider (FCC-ee) may provide a unique probe of the electron Yukawa coupling through Higgs boson production on resonance. Motivated by this exciting possibility, we examine a simple model which can result in $$\mathscr{O}$$ (10) modifications of the Higgs coupling to electrons. The model can also lead to deviations in the electron anomalous magnetic moment, $$g_e$$ - 2, which at present shows a $+2.2σ$ or $-3.7σ$ deviation, implied by differing precision determinations of the electromagnetic fine structure constant. The electron $$g_e$$ - 2 can be a forerunner for FCC-ee discoveries which, as we elucidate, may not be accessible to the high-luminosity LHC measurements. A simple extension of our model can also account for the current deviation in the muon $$g_μ$$ - 2.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0012704
OSTI ID:
2326924
Alternate ID(s):
OSTI ID: 2339919
Report Number(s):
BNL--225403-2024-JAAM
Journal Information:
Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 7 Vol. 109; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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