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      Reconcile muon g-2 anomaly with LHC data in SUGRA with generalized gravity mediation


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          From generalized gravity mediation we build a SUGRA scenario in which the gluino is much heavier than the electroweak gauginos at the GUT scale. We find that such a non-universal gaugino scenario with very heavy gluino at the GUT scale can be naturally obtained with proper high dimensional operators in the framework of SU(5) GUT. Then, due to the effects of heavy gluino, at the weak scale all colored sparticles are heavy while the uncolored sparticles are light, which can explain the Brookhaven muon g-2 measurement while satisfying the collider constraints (both the 125 GeV Higgs mass and the direct search limits of sparticles) and dark matter requirements. We also find that, in order to explain the muon g-2 measurement, the neutralino dark matter is lighter than 200 GeV in our scenario, which can be mostly covered by the future Xenon1T experiment.

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          Predictions of supersymmetric grand unified theories

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            Status of the Fermilab Muon (g-2) Experiment

             B Lee Roberts (2010)
            The New Muon \((g-2)\) Collaboration at Fermilab has proposed to measure the anomalous magnetic moment of the muon, \(a_\mu\), a factor of four better than was done in E821 at the Brookhaven AGS, which obtained \(a_\mu = [116 592 089 (63)] \times 10^{-11}\) \(\pm 0.54\) ppm. The last digit of \(a_{\mu}\) is changed from the published value owing to a new value of the ratio of the muon-to-proton magnetic moment that has become available. At present there appears to be a difference between the Standard-Model value and the measured value, at the \(\simeq 3\) standard deviation level when electron-positron annihilation data are used to determine the lowest-order hadronic piece of the Standard Model contribution. The improved experiment, along with further advances in the determination of the hadronic contribution, should clarify this difference. Because of its ability to constrain the interpretation of discoveries made at the LHC, the improved measurement will be of significant value, whatever discoveries may come from the LHC.

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              JHEP 1506 (2015) 079
              14 pages, 7 figures; minor changes; references added; version accepted by JHEP
              hep-ph astro-ph.CO hep-th

              Cosmology & Extragalactic astrophysics, High energy & Particle physics


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