Abstract
Leptoquarks have been suggested to solve a variety of discrepancies between the expected and observed phenomenon. In this paper, we show that the scalar doublet Leptoquark with Hypercharge 7/6 can simultaneously explain the recent measurement of $R_{K}$, $R_{K^*}$, the excess in anomalous magnetic moment of muon, and the observed excess in IceCube HESE data. For appropriate choice of couplings, the flavor anomalies are generated at one-loop level and IceCube data is explained via resonant production of the Leptoquark. Several constraints from LHC searches are imposed on the model parameter space.
Highlights
Leptoquarks are the solution to the problem of matter unification which appear naturally in many theories beyond the Standard Model (SM)
We show that the scalar doublet leptoquark with hypercharge 7=6 can simultaneously explain the recent measurement of RK, RKÃ, the excess in anomalous magnetic moment of muon, and the observed excess in IceCube high energy starting events data
Scalar quarks in R-Parity Violating Supersymmetry (RPV) have leptoquarklike Yukawa couplings [1] whereas vector leptoquarks arise in Grand Unification Theories (GUT) based on SUð5Þ and SOð10Þ [2,3,4]
Summary
Leptoquarks are the solution to the problem of matter unification which appear naturally in many theories beyond the Standard Model (SM). The latest measurement of RKÃ and RK by LHCb, has pointed towards ≈2.5σ deviation from the standard model [5,6] These are clear hints of Lepton Flavor Universality (LFU) violation which can be explained in a wide variety of frameworks including, but not limited to, leptoquarks [7,8,9,10,11,12], RPV [13,14,15,16], E6 [17], flavor violating Z0 [18,19,20,21,22,23,24,25,26,27,28,29,30], etc. We conclude with some modeldependent and model-independent statements
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