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• W4386896677 abstract "A bstract We present a model based on S 1 scalar leptoquarks to solve the tension observed in the recently proposed non-leptonic optimized observables $$ {L}_{K^{ast }{overline{K}}^{ast }} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msub> <mml:mi>L</mml:mi> <mml:mrow> <mml:msup> <mml:mi>K</mml:mi> <mml:mo>∗</mml:mo> </mml:msup> <mml:msup> <mml:mover> <mml:mi>K</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mo>∗</mml:mo> </mml:msup> </mml:mrow> </mml:msub> </mml:math> and $$ {L}_{Koverline{K}} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msub> <mml:mi>L</mml:mi> <mml:mrow> <mml:mi>K</mml:mi> <mml:mover> <mml:mi>K</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:mrow> </mml:msub> </mml:math> . These observables are constructed as ratios of U-spin related decays based on $$ {B}_{d,s}^0to {K}^{left(ast right)0}{overline{K}}^{left(ast right)0} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msubsup> <mml:mi>B</mml:mi> <mml:mrow> <mml:mi>d</mml:mi> <mml:mo>,</mml:mo> <mml:mi>s</mml:mi> </mml:mrow> <mml:mn>0</mml:mn> </mml:msubsup> <mml:mo>→</mml:mo> <mml:msup> <mml:mi>K</mml:mi> <mml:mrow> <mml:mfenced> <mml:mo>∗</mml:mo> </mml:mfenced> <mml:mn>0</mml:mn> </mml:mrow> </mml:msup> <mml:msup> <mml:mover> <mml:mi>K</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mrow> <mml:mfenced> <mml:mo>∗</mml:mo> </mml:mfenced> <mml:mn>0</mml:mn> </mml:mrow> </mml:msup> </mml:math> . The model gives a one-loop contribution to the Wilson coefficient of the chromomagnetic dipole operator needed to explain the tension in both non-leptonic observables, while naturally avoiding large contributions to the corresponding electromagnetic dipoles. The necessary chiral enhancement comes from an O (1) Yukawa coupling with a TeV-scale right-handed neutrino running in the loop. We endow the model with a U(2) flavor symmetry, necessary to protect light-family flavor observables that otherwise would be in tension. Furthermore, we show that the same S 1 scalar leptoquark is capable of simultaneously explaining the hints of lepton flavor universality violation observed in charged-current B -decays. The model therefore provides a potential link between two puzzles in B -physics and TeV-scale neutrino mass generation. Finally, the combined explanation of the B -physics puzzles unavoidably results in an enhancement of $$ mathcal{B}left(Bto Knu overline{nu}right) $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>B</mml:mi> <mml:mfenced> <mml:mrow> <mml:mi>B</mml:mi> <mml:mo>→</mml:mo> <mml:mi>Kν</mml:mi> <mml:mover> <mml:mi>ν</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:mrow> </mml:mfenced> </mml:math> , yielding a value close to present bounds." @default.
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• W4386896677 date "2023-09-19" @default.
• W4386896677 modified "2023-10-06" @default.
• W4386896677 title "Explaining the $$ {B}_{d,s}to {K}^{left(ast right)}{overline{K}}^{left(ast right)} $$ non-leptonic puzzle and charged-current B-anomalies via scalar leptoquarks" @default.
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• W4386896677 doi "https://doi.org/10.1007/jhep09(2023)114" @default.
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