Electroweak Penguin Decays of $b$-Flavoured Hadrons

Abstract

In the past decade, electroweak penguin decays have provided a number of precision measurements, turning into one of the most competitive ways to search for New Physics that describe beyond the Standard Model phenomena. An overview of the measurements made at the $B$ factories and hadron colliders are given and the experimental methods are presented. Experimental measurements required to provide further insight into present indications of New Physics are discussed.

26 pages, review

References in corpus (17)

• Updated NNLO QCD predictions for the weak radiative B-meson decays
• Test of lepton universality in beauty-quark decays
• Branching fraction measurements of the rare $B_s^0\to \varphi {\mu }^{+}{\mu }^{-}$ and $B_s^0\to f_2^{\prime }(1525){\mu }^{+}{\mu }^{-}$ decays
• New observables in the decay mode anti-B --> anti-K*0 l+ l-
• Measurement of the $B_s^0\to {\mu }^{+}{\mu }^{-}$ decay properties and search for the $B^0\to {\mu }^{+}{\mu }^{-}$ and $B_s^0\to {\mu }^{+}{\mu }^{-}\gamma$ decays
• Analysis of neutral $B$-meson decays into two muons
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• Lessons from the $B^{0,+}\to K^{\ast 0,+}{\mu }^{+}{\mu }^{-}$ angular analyses
• More Indications for Lepton Nonuniversality in $b\to s{\ell }^{+}{\ell }^{-}$
• Long-Distance Dominance of the CP Asymmetry in B->X_{s,d}+gamma Decays
• Precise measurement of the $f_s/f_d$ ratio of fragmentation fractions and of $B_s^0$ decay branching fractions
• Measurement of the phase difference between short- and long-distance amplitudes in the $B^{+}\to K^{+}{\mu }^{+}{\mu }^{-}$ decay
• Search for $B^{+}\to K^{+}\nu \bar{\nu }$ decays using an inclusive tagging method at Belle II
• Interplay of dineutrino modes with semileptonic rare $\mathbf{B}$-decays
• Lepton polarization asymmetries in rare semi-tauonic $b\to s$ exclusive decays at FCC-$ee$
• Measurements of Direct CP Asymmetries in B to X_s gamma decays using Sum of Exclusive Decays
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Cited by in corpus (3)

• $B$ Flavour Anomalies: 2021 Theoretical Status Report
• The Rumble in the Meson: a leptoquark versus a $Z^{\prime }$ to fit $b\to s{\mu }^{+}{\mu }^{-}$ anomalies including 2022 LHCb $R_{K^{(\ast )}}$ measurements
• Search for $B{}_s^0\to {\ell }^{\mp }{\tau }^{\pm }$ with the Semi-leptonic Tagging Method at Belle