Summary of the CKM 2014 working group on rare decays

Abstract

Rare flavour changing neutral current decays of strange, charm and beauty hadrons have been instrumental in building up a picture of flavour in the Standard Model. Increasingly precise measurements of these decays allow to search for deviations from predictions of the Standard Model that would be associated to contributions from new particles that might arise in extensions of the Standard Model. In this summary, an overview of recent experimental results and theoretical predictions is given. The new physics sensitivity and prospects for the different observables is also addressed.

arXiv comment23 pages, 5 figures. To appear in the proceedings of the 8th International Workshop on the CKM Unitarity Triangle, 8-12 September 2014, Vienna

References in corpus (79)

• Evidence for oscillation of atmospheric neutrinos
• Test of lepton universality using $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• The Search for Heavy Majorana Neutrinos
• New Results on B->pi, K, eta Decay Formfactors from Light-Cone Sum Rules
• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• Searches for Lepton Flavor Violation in the Decays tau -> e gamma and tau -> mu gamma
• B_{d,s}->rho, omega, K*, phi Decay Form Factors from Light-Cone Sum Rules Revisited
• Symmetries and Asymmetries of B -> K* mu+ mu- Decays in the Standard Model and Beyond
• Measurement of form-factor independent observables in the decay $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$
• Observation of the rare $B_s^0\to {\mu }^{+}{\mu }^{-}$ decay from the combined analysis of CMS and LHCb data
• B_{s,d} -> l+ l- in the Standard Model with Reduced Theoretical Uncertainty
• Search for Lepton Flavor Violating Tau Decays into Three Leptons with 719 Million Produced Tau+Tau- Pairs
• Charm-loop effect in $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ and $B\to K^{\ast }\gamma$
• Understanding the B->K*mu+mu- Anomaly
• Differential branching fractions and isospin asymmetries of $B\to K^{(\ast )}{\mu }^{+}{\mu }^{-}$ decays
• Flavor Violating Higgs Decays
• Angular Distributions of B -> K ll Decays
• Measurement of the B(s) to mu+ mu- branching fraction and search for B0 to mu+ mu- with the CMS Experiment
• Measurement of the $B_s^0\to {\mu }^{+}{\mu }^{-}$ branching fraction and search for $B^0\to {\mu }^{+}{\mu }^{-}$ decays at the LHCb experiment
• Two-Loop Electroweak Corrections for the K -> pi nu anti-nu Decays
• Lattice QCD calculation of form factors describing the rare decays $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ and $B_s\to \varphi {\ell }^{+}{\ell }^{-}$
• Improved Model-Independent Analysis of Semileptonic and Radiative Rare B Decays
• Flavour-Changing Decays of a 125 GeV Higgs-like Particle
• Probing New Physics Via the Transverse Amplitudes of B0-> K*0(-> K- pi+) l+l- at Large Recoil
• On B -> V l l at small dilepton invariant mass, power corrections, and new physics
• Relations between ΔM_{s,d} and B_{s,d}\to μ\barμin Models with Minimal Flavour Violation
• Rare Charm Decays in the Standard Model and Beyond
• On the impact of power corrections in the prediction of B->K*mu+mu- observables
• Vector-like leptons: Higgs decays and collider phenomenology
• Comprehensive Bayesian Analysis of Rare (Semi)leptonic and Radiative B Decays
• Search for B --> K(*) nu nubar and invisible quarkonium decays
• Differential branching fraction and angular analysis of the decay $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$
• Theory of B -> K(*)l+l- decays at high q^2: OPE and quark-hadron duality
• An explicit Z'-boson explanation of the B->K*mu+mu- anomaly
• New Search for tau -> mu gamma and tau -> e gamma Decays at Belle
• More Benefits of Semileptonic Rare B Decays at Low Recoil: CP Violation
• On minimal Z' explanations of the B->K*mu+mu- anomaly
• Search for Majorana neutrinos in $B^{-}\to {\pi }^{+}{\mu }^{-}{\mu }^{-}$ decays
• Diagnosing lepton-nonuniversality in $b\to s\ell \ell$
• Search for B -> h(*) nu nubar with the full Belle Y(4S) data sample
• Rare decay B -> K ll form factors from lattice QCD
• Search for the rare decay B_s^0->mu^+mu^-
• Analysis of Br(B-->X_s gamma) at NNLO with a Cut on Photon Energy
• Measurements of $CP$ violation in the three-body phase space of charmless $B^{\pm }$ decays
• Electroweak Corrections to $B_{s,d}\to {\ell }^{+}{\ell }^{-}$
• Indirect Probes of the MSSM after the Higgs Discovery
• Logarithmically Enhanced Corrections to the Decay Rate and Forward Backward Asymmetry in anti-B --> X(s) l+ l-
• Extracting short-distance physics from K_{L,S} -> pi0 e+ e- decays
• Measurement of the B->Xsl+l- branching fraction and search for direct CP violation from a sum of exclusive final states
• Three-loop QCD corrections to B_s -> mu^+ mu^-
• KL to pi0 e+ e- and KL to pi0 mu+ mu- : A binary star on the stage of flavor physics
• Long-Distance Dominance of the CP Asymmetry in B->X_{s,d}+gamma Decays
• Resonances gone topsy turvy - the charm of QCD or new physics in $b\to s{\ell }^{+}{\ell }^{-}$?
• Observation of a resonance in $B^{+}\to K^{+}{\mu }^{+}{\mu }^{-}$ decays at low recoil
• Limits on tau Lepton-Flavor Violating Decays in three charged leptons
• Angular analysis and branching fraction measurement of the decay B0 to K*0 mu+ mu-
• Searches for Majorana neutrinos in B- decays
• Search for the lepton flavour violating decay ${\tau }^{-}\to {\mu }^{-}{\mu }^{+}{\mu }^{-}$
• Observation of B+ to Lambda Lambdabar K+
• Study of the Baryon-Antibaryon Low-Mass Enhancements in Charmless Three-body Baryonic B Decays
• Search for Lepton Flavor Violating tau Decays into Three Leptons
• Measurement of the $\bar{B}\to X_s\gamma$ Branching Fraction with a Sum of Exclusive Decays
• Study of the decay mechanism for B+ to p pbar K+ and B+ to p pbar pi+
• Observation of photon polarization in the $b\to s\gamma$ transition
• Shedding light on CP violation in the charm system via D to V gamma decays
• Search for the rare decay $D^0\to {\mu }^{+}{\mu }^{-}$
• Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb
• Charming CP Violation and Dipole Operators from RS Flavor Anarchy
• $c\to u\gamma$ in the minimal supersymmetric standard model
• Weak annihilation and new physics in charmless $B\to MM$ decays
• Study of B+ to p Lambdabar gamma, p Lambdabar pi0 and B0 to p Lambdabar pi-
• Search for lepton-number violating B+ -> X- l+ l'+ decays
• Search for the Decay D0 -> gamma gamma and Measurement of the Branching Fraction for D0 -> pi0 pi0
• Evidence for CP Violation in B0 -> D+D- Decays
• Observation of B0 to Lambda Lambdabar K0 and B0 to Lambda Lambdabar K*0 at Belle
• Measurement of the Branching Fractions of the Radiative Charm Decays $D^0\to {\bar{K}}^{\ast 0}\gamma$ and $D^0\to \varphi \gamma$
• The s ---> d gamma decay in and beyond the Standard Model
• Measurements of Direct CP Asymmetries in B to X_s gamma decays using Sum of Exclusive Decays
• Studies of the decays $B^{+}\to p\bar{p}{h}^{+}$ and observation of $B^{+}\to \bar{\Lambda }(1520)p$