Flipped gμ- 2

John Ellis, Jason L. Evans, Natsumi Nagata, Dimitri V. Nanopoulos, Keith A. Olive

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We analyze the possible magnitude of the supersymmetric contribution to gμ- 2 in a flipped SU(5) GUT model. Unlike other GUT models which are severely constrained by universality relations, in flipped SU(5) the U(1) gaugino mass and the soft supersymmetry-breaking masses of right-handed sleptons are unrelated to the other gaugino, slepton and squark masses. Consequently, the lightest neutralino and the right-handed smuon may be light enough to mitigate the discrepancy between the experimental measurement of gμ- 2 and the Standard Model calculation, in which case they may be detectable at the LHC and/or a 250 GeV e+e- collider, whereas the other gauginos and sfermions are heavy enough to escape detection at the LHC.

Original languageEnglish (US)
Article number1079
JournalEuropean Physical Journal C
Issue number12
StatePublished - Dec 2021

Bibliographical note

Funding Information:
The work of J.E. was supported partly by the United Kingdom STFC Grant ST/T000759/1 and partly by the Estonian Research Council via a Mobilitas Pluss grant. The work of N.N. was supported by the Grant-in-Aid for Young Scientists (No.21K13916), Innovative Areas (No.18H05542), and Scientific Research B (No.20H01897). The work of D.V.N. was supported partly by the DOE grant DE-FG02-13ER42020 and partly by the Alexander S. Onassis Public Benefit Foundation. The work of K.A.O. was supported partly by the DOE grant DE-SC0011842 at the University of Minnesota.

Publisher Copyright:
© 2021, The Author(s).


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