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Resolving the (g − 2) μ discrepancy with F $$ \mathcal{F} $$ –SU(5) intersecting D-branes

Authors :
James A. Maxin
Joseph L. Lamborn
Tianjun Li
Dimitri V. Nanopoulos
Source :
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-18 (2021), Journal of High Energy Physics
Publication Year :
2021
Publisher :
SpringerOpen, 2021.

Abstract

A discrepancy between the measured anomalous magnetic moment of the muon $(g - 2)_{\mu}$ and computed Standard Model value now stands at a combined $4.2\sigma$ following experiments at Brookhaven National Lab (BNL) and the Fermi National Accelerator Laboratory (FNAL). A solution to the disagreement is uncovered in flipped $SU(5)$ with additional TeV-Scale vector-like $\bf 10 + \overline{10}$ multiplets and charged singlet derived from local F-Theory, collectively referred to as $\cal{F}$-$SU(5)$. Here we engage general No-Scale supersymmetry (SUSY) breaking in $\cal{F}$-$SU(5)$ D-brane model building to alleviate the $(g - 2)_{\mu}$ tension between the Standard Model and observations. A robust $\Delta a_{\mu}$(SUSY) is realized via mixing of $M_5$ and $M_{1X}$ at the secondary $SU(5) \times U(1)_X$ unification scale in $\cal{F}$-$SU(5)$ emanating from $SU(5)$ breaking and $U(1)_X$ flux effects. Calculations unveil $\Delta a_{\mu}({\rm SUSY}) = 19.0 - 22.3 \times 10^{-10}$ for gluino masses of $M(\widetilde{g}) = 2.25 - 2.56$ TeV and higgsino dark matter, aptly residing within the BNL+FNAL $1\sigma$ mean. This $(g - 2)_{\mu}$ 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.<br />Comment: 10 Pages, 1 Table, 4 Figures; JHEP Version

Details

Language :
English
ISSN :
10298479
Volume :
2021
Issue :
11
Database :
OpenAIRE
Journal :
Journal of High Energy Physics
Accession number :
edsair.doi.dedup.....e3b2e0d6fbac841ef469d97c541e8fe2