English

Resolving the $(g-2)_{\mu}$ Discrepancy with $\cal{F}$-$SU$(5) Intersecting D-branes

High Energy Physics - Phenomenology 2021-11-17 v2 High Energy Physics - Experiment

Abstract

A discrepancy between the measured anomalous magnetic moment of the muon (g2)μ(g - 2)_{\mu} and computed Standard Model value now stands at a combined 4.2σ4.2\sigma following experiments at Brookhaven National Lab (BNL) and the Fermi National Accelerator Laboratory (FNAL). A solution to the disagreement is uncovered in flipped SU(5)SU(5) with additional TeV-Scale vector-like 10+10\bf 10 + \overline{10} multiplets and charged singlet derived from local F-Theory, collectively referred to as F\cal{F}-SU(5)SU(5). Here we engage general No-Scale supersymmetry (SUSY) breaking in F\cal{F}-SU(5)SU(5) D-brane model building to alleviate the (g2)μ(g - 2)_{\mu} tension between the Standard Model and observations. A robust Δaμ\Delta a_{\mu}(SUSY) is realized via mixing of M5M_5 and M1XM_{1X} at the secondary SU(5)×U(1)XSU(5) \times U(1)_X unification scale in F\cal{F}-SU(5)SU(5) emanating from SU(5)SU(5) breaking and U(1)XU(1)_X flux effects. Calculations unveil Δaμ(SUSY)=19.022.3×1010\Delta a_{\mu}({\rm SUSY}) = 19.0 - 22.3 \times 10^{-10} for gluino masses of M(g~)=2.252.56M(\widetilde{g}) = 2.25 - 2.56 TeV and higgsino dark matter, aptly residing within the BNL+FNAL 1σ1\sigma mean. This (g2)μ(g - 2)_{\mu} favorable region of the model space also generates the correct light Higgs boson mass and branching ratios of companion rare decay processes, and is further consistent with all LHC Run 2 constraints. Finally, we examine the heavy SUSY Higgs boson in light of recent LHC searches for an extended Higgs sector.

Keywords

Cite

@article{arxiv.2108.08084,
  title  = {Resolving the $(g-2)_{\mu}$ Discrepancy with $\cal{F}$-$SU$(5) Intersecting D-branes},
  author = {Joseph L. Lamborn and Tianjun Li and James A. Maxin and Dimitri V. Nanopoulos},
  journal= {arXiv preprint arXiv:2108.08084},
  year   = {2021}
}

Comments

10 Pages, 1 Table, 4 Figures; JHEP Version

R2 v1 2026-06-24T05:13:01.611Z