Constraining Scalar Leptoquarks from the K and B Sectors

Abstract

Upper bounds at the weak scale are obtained for all ${\lambda }_{ij}{\lambda }_{im}$ type product couplings of the scalar leptoquark model which may affect K-K(bar), B_d-B_d(bar), and B_s-B_s(bar)$ mixing, as well as leptonic and semileptonic K and B decays. Constraints are obtained for both real and imaginary parts of the couplings. We also discuss the role of leptoquarks in explaining the anomalously large CP-violating phase in B_s-B_s(bar) mixing.

16 pages, 5 figures, more constraints analyzed, added a number of references

References in corpus (17)

• Measurement of the Differential Branching Fraction and Forward-Backword Asymmetry for B->K(*)l+l-
• Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay
• Implications of D^0-\bar D^0 Mixing for New Physics
• Accumulating evidence for nonstandard leptonic decays of D_s mesons
• Can scalar leptoquarks explain the f_{D_s} puzzle?
• K -> pion Semileptonic Form Factors from Two-Flavor Lattice QCD
• Mass limits for scalar and gauge leptoquarks from $K_L^0\to e^{\mp }{\mu }^{\pm },B^0\to e^{\mp }{\tau }^{\pm }$ decays
• Leptoquarks in FCNC charm decays
• Possibility of large lifetime differences in neutral B meson systems
• Search for pair production of second generation scalar leptoquarks
• Search for third generation scalar leptoquarks decaying into tau b
• Leptoquarks and Neutrino Masses at the LHC
• Search for third-generation leptoquarks in ppbar collisions at sqrt(s)=1.96 TeV
• Search for scalar leptoquarks and T-odd quarks in the acoplanar jet topology using 2.5 fb-1 of ppbar collision data at sqrt(s)=1.96 TeV
• Search for Third Generation Vector Leptoquarks in p anti-p Collisions at sqrt(s) = 1.96 TeV
• Bounds on Leptoquark and Supersymmetric, R-parity violating Interactions from Meson Decays
• Rare decays / B_s CPV measurements at Tevatron

Cited by in corpus (31)

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• Measurement of the CP-violating phase ${\varphi }_s^{J/\psi \varphi }$ using the flavor-tagged decay $B_s^0\to J/\psi \varphi$ in 8 fb${}^{-1}$ of $p \barp$ collisions
• Flavor & new physics opportunities with rare charm decays into leptons
• Explaining the $R_K$ and $R_{D^{(\ast )}}$ anomalies with vector leptoquarks
• Leptoquarks, Dark Matter, and Anomalous LHC Events
• Heavy and light scalar leptoquarks in proton decay
• Minimal Flavour Violation for Leptoquarks
• Study of the rare semileptonic decays $B_d^0\to K^{\ast }{l}^{+}{l}^{-}$ in scalar leptoquark model
• Model independent constraints on leptoquarks from b -> s l+ l- processes
• Measurement of the CP-Violating Phase beta_s in B0s -> J/Psi Phi Decays with the CDF II Detector
• Baryon Number Violating Scalar Diquarks at the LHC
• Rare semileptonic $B\to K(\pi )l_i^{-}{l}_j^{+}$ decay in vector leptoquark model
• Effects of scalar leptoquark on semileptonic ${\Lambda }_b$ decays
• Exploring dark matter, neutrino mass and $R_{K^{(\ast )},\varphi }$ anomalies in $L_{\mu }-L_{\tau }$ model
• Effect of scalar leptoquarks on the rare decays of B_s meson
• Leptoquark effects on $b\to s\nu \bar{\nu }$ and $B\to K{l}^{+}{l}^{-}$ decay processes
• New Physics effects in charm meson decays involving $c\to u{l}^{+}{l}^{-}(l_i^{\mp }{l}_j^{\pm })$ transitions
• Impact of vector leptoquark on $\bar{B}\to {\bar{K}}^{\ast }{l}^{+}{l}^{-}$ anomalies
• Light dark matter, rare $B$ decays with missing energy in $L_{\mu }-L_{\tau }$ model with a scalar leptoquark
• Study of the rare decays $B_{s,d}^{\ast }\to {\mu }^{+}{\mu }^{-}$
• Signatures of Leptoquarks at the LHC and Right-handed Neutrinos
• Exploring leptoquark effects in hyperon and kaon decays with missing energy
• Leptoquarks decaying to a top quark and a charged lepton at hadron colliders
• Of Contact Interactions and Colliders
• Effect of scalar leptoquarks on the lepton flavor violation decays of B meson
• Scalar diquark in t tbar production and constraints on Yukawa sector of grand unified theories
• Neutron-neutral particle mixing and its observable consequences
• Dineutron decay into sterile anti-neutrinos in neutron stars and its observable consequences
• Flavor Anomalies and Quark-Lepton Unification