Constraints on Scalar Leptoquark from Kaon Sector

Abstract

Recently, several anomalies in flavor physics have been observed, and it was noticed that leptoquarks might account for the deviations from the Standard Model. In this work, we examine the effects of new physics originating from a scalar leptoquark model on the kaon sector. The leptoquark we consider is a TeV-scale particle and within the reach of the LHC. We use the existing experimental data on the several kaon processes including $K^0-{\bar{K}}^0$ mixing, rare decays $K^{+}\to {\pi }^{+}\nu \bar{\nu }$, $K_L\to {\pi }^0\nu \bar{\nu }$, short-distance part of $K_L\to {\mu }^{+}{\mu }^{-}$, and lepton-flavor-violating decay $K_L\to {\mu }^{\pm }{e}^{\mp }$ to obtain useful constraints on the model.

11 pages, 6 figures, new references added, matches published version

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Cited by in corpus (11)

• B-decay Anomalies in a Composite Leptoquark Model
• Getting chirality right: single scalar leptoquark solutions to the $(g-2{)}_{e,\mu }$ puzzle
• $B$ decay anomalies and dark matter from vectorlike confinement
• Footprints of leptoquarks: from $R_{K^{(\ast )}}$ to $K\to \pi \nu \bar{\nu }$
• Constraints on charmphilic solutions to the muon g-2 with leptoquarks
• Rare semileptonic $B\to K(\pi )l_i^{-}{l}_j^{+}$ decay in vector leptoquark model
• Reflecting on chirality: CP-violating extensions of the single scalar-leptoquark solutions for the $(g-2{)}_{e,\mu }$ puzzles and their implications for lepton EDMs
• $B$ decay anomalies from nonabelian local horizontal symmetry
• Constraints on new physics from $K\to \pi \nu \bar{\nu }$
• Impact of vector leptoquark on $\bar{B}\to {\bar{K}}^{\ast }{l}^{+}{l}^{-}$ anomalies
• Exploring leptoquark effects in hyperon and kaon decays with missing energy