GUT-inspired supersymmetric model for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>h</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>γ</mml:mi><mml:mi>γ</mml:mi></mml:mrow></mml:math>and the muon<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>g</mml:mi><mml:mo>−</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math>

Ajaib, Muhammad Adeel; Gogoladze, Ilia; Shafi, Qaisar

doi:10.1103/physrevd.91.095005

Cited by 23 publications

(14 citation statements)

References 61 publications

(31 reference statements)

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“…In the context of general SUSY scenario, muon (g-2) has been discussed in [72][73][74][75][76][77][78][79]. Within the unified SUGRA framework the contributions to anomalous muon magnetic moment are discussed in [79][80][81][82][83][84][85][86].…”

Section: )mentioning

confidence: 99%

Non-universal gaugino mass models under the lamppost of muon (g-2)

Chakrabortty

Choudhury

Mondal

2015

J. High Energ. Phys.

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In unified N = 1 supergravity scenario the gaugino masses can be nonuniversal. The patterns of these non-universalities are dictated by the vacuum expectation values of non-singlet chiral super-fields in visible sector. Here, we have analysed the model independent correlations among the gaugino masses with an aim to explain the [1 ÷ 3]σ excess of muon (g-2) (∆a µ ). We have also encapsulated the interconnections among other low and high scale parameters, compatible with the collider constraints, Higgs mass, relic density and flavour data. We have noted that the existing non-universal models are not capable enough to explain ∆a µ at [1 ÷ 2]σ level. In the process, we have also shown the impact of recent limits from the searches for disappearing track and long lived charged particles at the LHC. These are the most stringent limits so far ruling out a large parameter space allowed by other constraints. We have also performed model guided analysis where gaugino masses are linear combination of contributions coming from singlet and non-singlet chiral super-fields. Here, a new mixing parameter has been introduced. Following the earlier methodology, we have been able to constrain this mixing parameter and pin down the promising models on this notion.

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Section: )mentioning

confidence: 99%

Non-universal gaugino mass models under the lamppost of muon (g-2)

Chakrabortty

Choudhury

Mondal

2015

J. High Energ. Phys.

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“…It has been pointed out, e.g., in refs. [22,42] (but see also [20,27,31,43]), that in models of gravity mediation all one really needs is GUT-defined boundary conditions such that the high-scale value of the gluino soft mass, M 3 , is much larger than the values of M 1 and M 2 . Through the renormalization group equations (RGEs) large initial conditions for M 3 can then drive the masses of sparticles charged under SU (3) to large values at the EW scale, in agreement with the LHC data and the measurement of the Higgs boson, while the sparticles charged under only the EW gauge groups remain quite light, in agreement with the measurement of δ (g − 2) µ .…”

Section: Introductionmentioning

confidence: 99%

GUT-inspired SUSY and the muon g − 2 anomaly: prospects for LHC 14 TeV

Kowalska

Roszkowski²,

Sessolo³

et al. 2015

J. High Energ. Phys.

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We consider the possibility that the muon g − 2 anomaly, δ (g − 2) µ , finds its origins in low energy supersymmetry (SUSY). In the general MSSM the parameter space consistent with δ (g − 2) µ and correct dark matter relic density of the lightest neutralino easily evades the present direct LHC limits on sparticle masses and also lies to a large extent beyond future LHC sensitivity. The situation is quite different in GUT-defined scenarios where input SUSY parameters are no longer independent. We analyze to what extent the LHC can probe a broad class of GUT-inspired SUSY models with gaugino nonuniversality that are currently in agreement with the bounds from δ (g − 2) µ , as well as with the relic density and the Higgs mass measurement. To this end we perform a detailed numerical simulation of several searches for electroweakino and slepton production at the LHC and derive projections for the LHC 14 TeV run. We show that, within GUT-scale SUSY there is still plenty of room for the explanation of the muon anomaly, although the current LHC data already imply strong limits on the parameter space consistent with δ (g − 2) µ . On the other hand, we demonstrate that the parameter space will be basically fully explored within the sensitivity of the 14 TeV run with 300 fb −1 . This opens up the interesting possibility that, if the (g − 2) µ anomaly is real then some positive signals must be detected at the LHC, or else these models will be essentially ruled out. Finally, we identify the few surviving spectra that will provide a challenge for detection at the LHC 14 TeV run and we characterize their properties.

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“…The function RNORMX [24] is employed to generate a Gaussian distribution around random points in the parameter space. Further details regarding our scanning procedure can be found in [25].…”

Section: The Muon Anomalous Magnetic Momentmentioning

confidence: 99%

SU(5) with nonuniversal gaugino masses

Ajaib

2018

Int. J. Mod. Phys. A

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We explore the sparticle spectroscopy of the supersymmetric SU(5) model with non-universal gaugino masses in light of latest experimental searches. We assume that the gaugino mass parameters are independent at the GUT scale. We find that the observed deviation in the anomalous magnetic moment of the muon can be explained in this model. The parameter space that explains this deviation predicts a heavy colored sparticle spectrum whereas the sleptons can be light. We also find a notable region of the parameter space that yields the desired relic abundance for dark matter. In addition, we analyze the model in light of latest limits from direct detection experiments and find that the parameter space corresponding to the observed deviation in the muon anomalous magnetic moment can be probed at some of the future direct detection experiments.

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GUT-inspired supersymmetric model forh→γγand the muong−2

Cited by 23 publications

References 61 publications

Non-universal gaugino mass models under the lamppost of muon (g-2)

Non-universal gaugino mass models under the lamppost of muon (g-2)

GUT-inspired SUSY and the muon g − 2 anomaly: prospects for LHC 14 TeV

SU(5) with nonuniversal gaugino masses

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