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PoS(LeptonPhoton2015)030 http://pos.sissa.it/ ∗ [email protected] Speaker. Rare decays of heavy mesonsStandard Model provide with some high of level theare of most accuracy. reviewed, promising with In approaches this a for paper,collaborations focus at testing the on the status the Large the and measurements prospects Collider at in performed CERN. the by field the LHCb, CMS and ATLAS ∗ Copyright owned by the author(s) under the terms of the Creative Commons c Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). International Symposium on Interactions17-22 at August High 2015 Energies University of Ljubljana, Slovenia Gaia LANFRANCHI (on behalf of the LHCb collaboration) Laboratori Nazionali di Frascati, INFN E-mail: Rare Decays of Heavy XXVII International Symposium on Lepton Photon Interactions at High Energies 17-22 August 2015 Ljubljana, Slovenia PoS(LeptonPhoton2015)030 ) 0 ( 9 Q (2.1) are Wilson ) µ . The operators are the electro- ( ) i µ C µν ( a i Gaia LANFRANCHI µν a G O ) G l ) 5 . Among the dimension- b γ and . a µ µ c ) . T γ l ) l h µν 5 L ( γ F )( l R b ) + P ) 0 i )( R b ( Q µν ) 0 i L R σ P ( C q L µ ( γ + b i q qP e m Q i = = ( = ( C hadron decay processes have been performed ( ) ) ) 0 0 0 to decays with in the final state. ( ( ( − i asymmetries in decays of strange, charm, and q 8 q P q 10 c ∑ R , Q Q Q 2 L 2 . 2 π CP Q and ) are CKM matrix elements. The e ν 16 ij contribute to radiative and semileptonic decays. The − L ∗ V µν b tq P ) ) 0 V µ ( 8 l F ) µ tb Q b γ νγ V ) l ) L F )( 2 ( )( ll b R G and b ) √ P 4 ) )( R ) 0 ( R b ( 7 ( − L µν ) contribute to leptonic and semileptonic decays, the operators L P are described by the weak effective Hamiltonian: Q R σ P ( P = µ q , L − µ γ S ( γ , b q b ) eff 0 q qP e ( 10 m H Q = ( = ( = ( = ) , and chirality structure of new interactions can be probed by measuring ) ) ) R 0 0 0 ( ( ( ( q S q 9 q L 7 q CP Q Q Q Q is the Fermi constant and denote left and right-hand chirality projections and R F hadron decays , L G − P b Here, Rare FCNC decays of The (SM) of physics cannot be the ultimate theory, as it is incomplete The flavour, A wealth of new measurements of rare where magnetic and chromomagnetic field strengthmomagnetic tensors, respectively. dipole The operators electromagnetic and chro- semileptonic operators only to semileptonic decays, and the operators by the ATLAS, CMS and LHCb experimentsand at Belle the experiments. LHC and In from the theof following legacy rare paragraphs datasets decays of a of the review BaBar heavy of mesons the is most presented. recent results in the field 2. Rare and contains too many freeThe parameters, pattern such of as these the parameters fermionand masses could so and be the SM the governed would by be mixingsuperseded a a by angles. low-energy hidden a effective mechanism higher theory energy of yet scale, a to expectedCollider more in be (LHC). fundamental the This discovered, TeV theory region would that and imply would accessible new be atPhysics, symmetries, the NP) , Large Hadron dynamics, that and can flavor be structure discovered (New either directly or indirectly. Rare Decays of Heavy Mesons 1. Introduction beauty hadrons. Notably weak flavour-changingto neutral contributions current from (FCNC) heavy decays physics beyond are the very(CKM) SM sensitive and as loop-suppressed. they are both Cabibbo-Kobayashi-Maskawa branching fractions, angular distributions and six operators contributing to theseare: transitions, the operators most sensitive to new physics effects coefficients corresponding to local operators with differentand Lorentz their structure, Wilson coefficients are evaluated at the renormalisation scale PoS(LeptonPhoton2015)030 ] 1 6 − → → and and 0 0 s ) 0 B B ( ( − B µ decays in BR BR + signals, re- µ ), and starts 50 TeV for − and 1.1 fb 1 0 µ and 1 > → B + 9 − 0 s − µ Λ B ( 10 Gaia LANFRANCHI and → · ]. A difference in the ) 0 0 s BR . The uncertainties on 9 7 6 ] obtaining a statistical . . level, respectively. B B 10 0 0 ] and in specific models 11 − + − σ 1 8 . and 10 2 · ]. Their values are − ) 8 µ 09 and 2.2 + ) = ( . of new physics, 0 µ − σ is suppressed by the helicity factor µ ± Λ branching fractions can be enhanced. decay based on 1.0 fb → + − − 0 s 06 µ µ − mode. . ]. Recently the CMS and LHCb collabo- µ B + µ 1 0 + → 10 µ + B µ 0 s µ B → ) = ( ( → → 0 − 0 B 0 s BR µ 3 B for the B + decays at the 1.2 σ µ − and and 0 . µ → − − + 0 µ µ ]. µ B . The measurements are compatible with the SM branching + + 5 ]. ( ) µ µ 4 6 . . → 12 1 1 BR 8 TeV, respectively [ 0 − + → → B 7 0 s = . 0 s ), determined by Lattice QCD calculations [ ] are reliably calculated in the SM [ mode and 3 B 3 s and B 0 s 7 0 s B 6 TeV in case of Minimal Flavour Violation (MFV) loop. It is worth 9 and √ . f B 0 TeV [ − = ( . 0 − , where the uncertainties include both statistical and systematic sources, 1 0 ], the 10 µ > 10 B SM · 2 and − + − S ) Λ 0 5 µ . B for the 10 f 23 0 · . allows us to put constraints of the scale → and σ 0 ) at the center stage of indirect NP searches. 7 TeV and > 6 4 0 s ) 2 ) . . ) . ± 1 1 B Λ = − 18 20 − . . + − s µ 0 0 µ 66 9 . . − + + √ + 3 3 µ µ and this renders these decays sensitive to physics with new scalar or pseudoscalar inter- ]. However, in most models of New Physics, the decay rates can also be suppressed for 76 . 4 d , 0 , which is the ratio of the two vacuum expectation values of the two Higgs dou- s , → → 2 ) = ( ) = ( B β 3 0 0 s − − This result concludes a search that started more than three decades ago (see Fig. Several extensions of the SM predict enhancements to the branching fractions for these rare The branching fractions of these two decays, accounting for NLO electroweak corrections [ Before the LHC started operating, no evidence for either decay mode had been found. Up- The combined fit leads to the measurements The important role of the branching fraction of the = ( M B B µ µ decay constants ( / ( ( 0 s µ 2 + + 0 s B SM µ µ fractions of the decays. In supersymmetric models with non-universal Higgs masses [ BR spectively. The fit for theS ratios of the branching fractions relative to their SM predictions yields the latter contributing as 35% and 18% of the total uncertainty for the m actions and suitable to probe modelsextensions with of an the extended Standard Higgs Model sector. contain Practically extra all Higgs weakly multiplets, coupled which puts B noting that the current accuracyNP reached mass on scale, the Higgs couplings brings a similar sensitivity to the In the minimal supersymmetric extension of theof SM, tan the rates are strongly enhancedblets at [ large values the SM values are now dominated by our knowledge of the CKM matrix elements and the rations have performed a joint analysis of the data collected during Run I [ the era of precisionBR measurements of the propertiesgeneric of couplings this and decay. The current precision on the per limits on the2013 branching LHCb fractions published were the an first evidence order of of the magnitude above the SM predictions. In models with extended Higgsial sector contribution has to been the widely decays discussed in the literature. In fact, the ax- containing [ specific choices of model parameters [ and NNLO QCD corrections [ observed branching fractions with respect to theSM predictions should would be provide extended. a direction in which the collected at significance of 6 Rare Decays of Heavy Mesons 3. Leptonic decays PoS(LeptonPhoton2015)030 0 − ∗ → µ K 0 + B µ which 5 , → 0 4 0 P B ], ]. Due to the ) decay. Figure 16 and − 15 µ − , , are only induced + µ τ Gaia LANFRANCHI µ 14 + , e , µ , → 13 µ 0 → B 0 s ( = B ` − µ + µ → , where FCNC decay which is mediated by 0 s − s B ` + ]. Interestingly, a large local-discrepancy → ` ) b 17 d ( s decays, reported by 11 experiments spanning more . Recently this discrepancy has been confirmed is a 0 5 → − P − 4 b µ µ daughter particles. + for + 0 , and performing a simultaneous fit of all the angular µ 1 4 µ B , and the forward-backward asymmetry of the dimuon 0 − /c → L ∗ 2 0 F K B , 0 ∗ → K and 0 B − 68 GeV . µ 8 + < µ 2 q → 0 s < B angular distributions using data collected in 2011 [ 3 . − µ + µ ) − ] and references therein. . The LHCb experiment also measured the asymmetry between the two transverse π 11 FB Search for the + has been seen between the measurement and the SM prediction in the dimuon invariant A K σ → The ATLAS, CMS and LHCb experiments have all performed measurements of the The LHCb experiment also made first measurements of two new observables [ In the SM, the electroweak penguin decays In particular, the rare decay ( ∗ 0 electroweak box and penguin diagrams inhanded the currents SM. and It new can scalar and be pseudoscalar aby couplings. highly studying These sensitive the NP probe angular contributions for distributions can new of be right- the probed K are free from form-factor uncertainties at leading order [ by LHCb using the full Run I dataset, 3 fb polarisations, which is particularly sensitivethese to measurements the were consistent handedness with of SM the expectations. photon polarisation. All of of 3.7 mass squared range 4 system, branching fractions; the blue (red) lines and markers relate to the 4. Exclusive semi-leptonic decays at the one-loop level,contributions leading from New to Physics small beyond the branching SM. fractions and thus a rather high sensitivity to rarity of the decay and thenot small simultaneously number fit of for candidates thattudinal all are polarisation of reconstructed, fraction the the of experiments angular the did terms. ATLAS and CMS measured only the longi- Figure 1: than three decades, and by theing present fractions results. at Markers 90% without confidence error level, while barsdence measurements denote intervals. are upper The denoted limits solid with on horizontal error lines the bars represent branch- delimiting the 68% SM confi- predictions for the Rare Decays of Heavy Mesons from Ref. [ PoS(LeptonPhoton2015)030 . ] 3 ]. − − 4 µ µ 16 /c 21 2 ]. ] + + 4 c µ µ 20 / 0 2 + between ∗ ∗ 2 K and Fig. K q 2 15 [GeV → 2 → q 0 agree with SM ] for + B SM from ABSZ B 21 FB ]. LHCb preliminary Gaia LANFRANCHI A 18 10 and [6.0-8.0] GeV , and longitudinal polarization and 4 − 8 TeV. The measurements 0 /c L ∗ ]. The results are shown in µ variable. 2 F = ] 0 K + 5 4 s 22 c P [ µ / are shown in Fig. s 2 √ 2 5 0 K 5 q P → 15 [GeV ]. Both 2 0 q and 21 B SM from DHMV , FB 0 − LHCb preliminary 1 0 A

µ 0.8 0.6 0.4 0.2 ,

L L + ] and [ F 10 F bins, [4.0-6.0] GeV µ 0 20 2 5 ∗ q , K ] 4 19 c / → 2 5 0 in the B of data collected in 2012 at σ . The shaded boxes show the SM prediction taken from Ref. [ 1 15 [GeV 2 2 − q ). This result is compatible with the previous measurement [ q . The shaded boxes show the SM prediction taken from Ref. [ 3 2 SM from ABSZ q 0 ] seem to be too low compared to the SM predictions when using LHCb preliminary 1 0 -1

0.5

-0.5 26

5

, are in good agreement with the SM prediction [ P 10 ' 9 in bins of (see Fig. 0 − 5 observable is measured to be above the SM prediction [ 3 P 4 in bins of 0 S 5 /c P L 2 F 5 decays and measure the angular distribution of the and ]. The results of the observables − FB 18 µ A + and 8 GeV µ The observable 4 0 c ∗ 0 / 0 2 K 0.5 . This update is based on 20 fb

-0.5

Recently the CMS collaboration published an update of the analysis of the Branching ratio measurements of FB 4 A Figure 2: → 0 Figure 3: decay, measuring the forward-backward asymmetry of the ,fraction, the and the differential branchingFig. fraction as a function of decays published by LHCb [ are among the mostdata precise collected to in date theB and coming are years in will good allow agreement CMS with to the perform SM the predictions. full angular The analysis of the predictions, while the and corresponds to a deviation of 2.9 respectively, with the SM prediction from [ Rare Decays of Heavy Mesons distributions [ 4 GeV The other observables, PoS(LeptonPhoton2015)030 ]. , is 30 ) , 29 syst ( , decay has 28 − 036 , ]. The impact . µ 8 0 , where precise + 27 4 ± /c ) 2 φ µ Gaia LANFRANCHI resonances. The blue ] performed a global 0001 [ ) . → stat S ( 0 34 S 2 ( ]. Results of the angular B 6 GeV ± 090 074 Ψ . . . The statistical uncertainty is 31 0 0 < − + − 2 µ and q 0003 + . 745 1 ψ µ < . 0 / 0 ∗ J K ) = = 2 b → K m 0 / R B µ 2 m ( for branching fractions at low di-lepton invariant o 2 ]. The lattice gauge (Lattice) calculation of the form − q + e 24 6 1 + [ vs e 2 2 = + q dq ). K / 5 SM K R → mass presently applied by the LHCb collaboration dB + − B B ]. The LHCb result, , and FB and 33 A − , L µ F + µ below the SM predictions in the range 1 + σ K ]. ] and is extrapolated to high 25 → 23 + [ below the SM prediction. B 2 q σ of 6 . K Measured values of R ]. In the SM this ratio is expected to differ from unity only due to tiny Higgs penguin con- 32 In 2014, another tension with the SM has been observed by LHCb, namely a suppression of Several attempts have been made to understand these anomalies by performing global fits to been updated by the LHCb collaboration using the full Run I dataset [ factors is from Ref. [ Recently the differential branching fraction and angular analysis ofanalysis the are found to be consistentfound with instead the to be Standard 3.3 Model. Thetheoretical differential calculations branching are fraction available is (Fig. tributions and difference of phase space, of radiative corrections in the ratiomass has been squared evaluated and employing the the reconstructed cutsand on the does dilepton not invariant exceed a few % [ Figure 4: state-of-the art form factors from lattice QCD or light-cone sum rules (LCSR) [ the ratio Rare Decays of Heavy Mesons and red shaded regions show twois Standard made Model at predictions: low the light-cone sum rules (LCSR) calculation mass [ shown by the inner vertical bars,show while the the bin outer widths. vertical bars The give vertical the shaded total uncertainty. regions The correspond horizontal to bars the currently 2 the data from the LHC experiments, CDF and the B factories. Reference [ PoS(LeptonPhoton2015)030 , , ] − − − → 20 µ µ µ 0 , + + + B µ 19 due to µ + ∗ 2 φ µ ] or from π q K ]. 42 → → → s 47 ]. This model 0 B + , B B 38 − models have been µ transitions in Gaia LANFRANCHI 0 + Z − ], although agreement µ µ 46 )+ + , ∗ resonances are taken into ( µ 2 45 d K q → → b + not measured in this analysis and B , overlaid with SM predictions [ , 2 ]. The values for the CKM matrix − q − µ 46 µ + + angular observables will allow for a sig- µ could be explained by an underestimate of φ µ − S ]. − µ K → µ + 43 0 S + → µ B 0 µ 0 7 ∗ 0 B ∗ K ]. However, it is also possible that the discrepancies have also been determined using the K | → 41 ts → , 0 V boson with flavour violating couplings [ 0 / B ]. The effect is especially pronounced at low 0 40 B td , Z 37 V | , 39 . − 36 µ , + 35 µ 75, close to what is measured in data. Other . 0 asymmetries. These will allow to determine the imaginary parts of the → decays, and are in agreement with previous measurements [ contributions to the decay [ s ' and the ratio − c B | K CP c ]. The measured values of the differential branching fraction are shown in µ , ts R γ + V s 44 | µ X bin is only achieved when contributions from low- + 2 → K and q | 0 ]. The total branching fraction is computed from the integral over the measured bins → B td decays [ , V Differential branching fraction of the decay | + 46 γ − ∗ B µ K . The branching fraction agrees with SM predictions from Refs. [ + Recently LHCb published the results related to the study of The data are best described by a model in which a new vector current destructively interferes Future improved measurements of 6 µ → + 0 π Wilson coefficients, which are still constrained very weakly. B nificantly more precise determination of theis Wilson played coefficients. by In angular this respect, an important role is found to be inmeasured agreement and with is the consistent SMelements with predictions. a The recent CP SM asymmetryand the prediction of the [ decay has been with the SM contributions [ multiplied by a scaling factor to account for the regions of angular observables and branching fractions of additional interference with the virtual photonexplained contribution in in the models SM. that A introduce newwould vector a current also is predict best the uncertainty on the SM prediction, coming from the treatment of the form-factors [ Fig. in the lowest- observed in the angular analysis of the fit to 88 measurements of 76 different observables from six experiments, including indicated by blue shadedareas. boxes. The vetoes excluding the charmonium resonances are indicated by grey suggested in the literature as well [ our understanding of account [ Figure 5: Rare Decays of Heavy Mesons PoS(LeptonPhoton2015)030 , , , χ 0 57 62 68 CP ∗ , K 67 → 0 1800 MeV B − violation in strong Gaia LANFRANCHI , the photon and CP 800 MeV and an energy Z − ) 4 c / 2 produced in the decay ] (HKR15) and from lattice QCD cal- χ 46 3 TeV. A broader range of mass and (GeV FNAL/MILC15 2 in bins of dilepton invariant mass squared, 20 − q ]. To couple the portal to a hidden − LHCb ] for a summary). One class of models µ 65 ]. No evidence for a signal is observed, and + 60 µ 70 HKR15 [ + 1 π ] (APR13), [ − 8 → 45 + 10 B APR13 ] proposes an axion with 360 66 based on 3 fb LHCb − µ 0 ]. These theories postulate that dark particles interact feebly 1 0 2 +

1.5 0.5 2.5

µ 56

) c GeV (10 q dB/d

2 4 -2 -9 ]-[ → ], and may have generated the asymmetry observed today [ 49 χ 61 and − ]. These theories postulate an additional fundamental symmetry, the spontaneous π + 64 K ] (FNAL/MILC15). The differential branching fraction of 48 → , at which the symmetry is broken, in the range 1 0 f ∗ ]. Previous searches for such GeV-scale particles have been performed using large data K LHCb has published a search for a hidden-sector boson Many theories predict that TeV-scale dark matter particles interact via GeV-scale bosons [ We expected TeV-scale NP with sizable couplings to solve the hierarchy problem and since it 59 ]. Another class of models invokes the axial-vector portal in theories of dark matter that seek ]. , ]. The associated inflaton particle is expected to have a mass in the range 270 , compared to SM predictions taken from Refs. [ 2 61 with breaking of which results in a particle called the axion [ involving the scalar portal hypothesizes thatin such a the field early was responsible universe for [ an inflationary period [ interactions [ sector containing a TeV-scale darkviolation matter in particle, strong while interactions, also Ref.[ explaining the suppression of 69 samples from many types of experiments (see Ref.[ to address the cosmic ray anomalies, and to explain the suppression of 58 63 q culations [ with all the known particlesare and, singlet hence, states have under thus theparticles far SM escaped may gauge detection. arise interactions. via Hiddenwhose Coupling sector mixing particle between particles of does the not the SM carry hidden-sector and electromagneticthe field charge hidden-sector neutrinos) (the with could Higgs provide a and such the SM a portal. portal field. Any SM field scale, energy scale values is allowed in other dark matter scenarios involving axion(-like) states [ 5. The hidden sector is easy to obtain dark matterby out the of current it, lack there of washidden-sector evidence no theories for need [ a for dark a matter light particle hidden candidate, sector. interest Now, motivated has been rekindled in Figure 6: Rare Decays of Heavy Mesons PoS(LeptonPhoton2015)030 3, for 1000 ≥ ) [MeV] β − 0 and 0.99. µ ] and, as in +

µ ( 73 ) = 800 m , which exclude ] axion model of θ ]; (right) constraints 72 Gaia LANFRANCHI 68 transitions, with un- , hadrons − ], which only considers 71 ` 600 LHCb + 73 → ` s χ ( ] and by the CHARM experiment → BR 73 b 400 as a function of mass and lifetime lifetimes less than 100 ps and for ) χ − µ Theory Theory +

for CHARM µ -7 -8 -5 9 -4 -6

− 10 10 10 10 10

θ → 2 . χ 2 ( 9 χ 2β BR f ( )tan [PeV], m(h)=10 TeV 1 2 × ) 1 GeV/c χ 0 4000 ∗ ) [MeV] < − K LHCb µ + µµ µ ( → m m 0 B 3000 ( ]. The regions excluded by the theory [ (left) shows exclusion regions for the DFSZ [ 73 BR 7 2000 . Figure hadrons) = 0.99 hadrons) = 0 2 → →

χ χ ( ( 1000 B B boson. These limits are of the order of 10 Exclusion regions at 95% CL: (left) constraints on the axion model of Ref. [ (right) shows exclusion regions for the inflaton model of Ref. [ 1 GeV. The branching fraction into hadrons is taken directly from Ref. [ ] set in the limit of large ratio of Higgs-doublet vacuum expectation values, tan 1 GeV/c 7 χ < 1

68

<

0.5 A wealth of experimental results in the last few years are constraining New Physics (NP)

) )tan ( f )=1 TeV )=1 h ( m [PeV],

χ β 2 ] are also shown. χ µµ ( 74 on the inflaton model of Ref. [ contributions in rare decays of heavy mesons, in particular in 6. Conclusions of the m m Figure 7: [ precedented level of precision.predictions, We hence did either not NP is observeother very so heavy intriguing far or possibility any it is unambiguous mimics that theto deviation New SM SM Physics from particles in is SM and its below escaped flavor-breaking the detection pattern.continue Fermi so in far. scale An- the The and coming quest couples years for and very NP willsearches weakly in nicely and rare complement from decays the the of constraints study heavy on mesons of NP will coming the from Higgs direct couplings. Rare Decays of Heavy Mesons upper limits are placed on Ref. [ charged-Higgs masses of 1 and 10 TeVFigure and for two extreme cases, the axion model, is highlyConstraints uncertain are placed but on this the does mixing angle not between greatly the affect Higgs and the inflaton sensitivity fields, of this search. the previously allowed region for PoS(LeptonPhoton2015)030 12 , Int. D89 (2015) 110 C74 C , 073 JHEP Phys. Rev. , , 11 − , µ + Phys. Rev. µ , , in the constrained JHEP , − Gaia LANFRANCHI → − , arXiv:1506.03070v1 Eur. Phys. J. Eur. Phys. J. µ s µ , , Phys. Rev. Lett. + decay + , µ µ − − µ µ → → + + ) µ sd µ s decay from the combined 0 ( ∗ 0 − → K µ s transitions 0 s + → and B µ → 0 with the ATLAS Experiment µγ observables in the full kinematic range → and cold matter scattering in the MSSM − 0 s `` → µ − ∗ + τ µ K µ + 0 ∗ → µ K → , 38 (2007). Signatures of new Physics in dileptonic B-decays (2013) 77. 10 0 s → , (2015) 68. Three-loop QCD corrections to B 0 (2013) 191801. 063 (2006). Angular analysis and branching fraction measurement of On B 522 B 760 , 115011 (2007). et al. Electroweak Corrections to B B 727 111 05 , , State of new physics in b Minimal Flavour Violation for Leptoquarks B-meson observables in the maximally CP-violating MSSM with First evidence of the decay B Angular analysis of the B Differential branching fraction and angular analysis of the decay Measurement of form-factor independent observables in the D 76 et al. Nature JHEP , Observation of the rare B , in the Standard Model with reduced theoretical uncertainty Nucl. Phys. , Phys. Lett. (2013) 131. − , ` β Phys. Rev. Optimizing the basis of B − + 08 Phys. Rev. Lett. , , ` µ , tan Angular Analysis of B + − → (CMS collaboration), µ µ , 2617 (2006). et al. d 0 , + ∗ s JHEP, , µ Higgs Couplings and their Implications for New Physics Scales K 0 − et al. Review of lattice results concerning low-energy ∗ A 21 (LHCb collaboration), (LHCb collaboration), (LHCb collaboration), (LHCb collaboration), µ → , K + 0 et al. B µ (2013) 137. → 0 , 101801 (2014). Lepton flavour violating decays, et al. ∗ 0 et al. et al. et al. et al. 05 K 112 → 0 Lett. (2014), no. 9 2890, arXiv:1310.8555. JHEP (2014), no. 3 034023, arXiv:1311.1348. (2013) 021801. analysis of CMS and LHCb data B decay B minimal flavor violation (2013) 097, arXiv:1311.1347. [hep-ph]. ATLAS-CONF-2013-038 (2013). the decay B wth non-universal Higgs masses (2010). J. Mod. Phys. 75:382, arXiv:1411.3161. MSSM+NR with large LHCb-CONF-2015-002, cds.cern.ch/record/2002772. [1] J. R. Ellis, K. A. Olive, Y. Santoso [3] S. R. Choudhury, A. S. Cornell, N. Gaur [4] J. Parry, [9] S. Aoki [7] T. Hermann, M. Misiak, and M. Steinhauser, [5] J. R. Ellis, J. S. Lee, and A. Pilaftsis, [6] C. Bobeth, M. Gorbahn, and E. Stamou, [8] C. Bobeth [2] S. Davidson and S. Descotes-Genon, Rare Decays of Heavy Mesons References [10] R. Aaij [18] R. Aaij [11] LHCb and CMS collaborations, [17] S. Descotes-Genon [15] R. Aaij [16] R. Aaij [19] W. Altmannshofer and D. M. Straub, [12] M. Muhlleitner, [13] ATLAS collaboration, [14] S. Chatrchyan PoS(LeptonPhoton2015)030 . , − , µ l − data (2014) + + (2013) µ l µ + ∗ Phys. 07 0 − µµ , 02 µ K ∗ s 0 µ ∗ K B = 1 (2013) 2646 (2013) + anomaly → ∆ K → µ → − ∗ JHEP , JHEP decays 0 → , µ C73 ∗ K K , (2015) 382. D 88 + − 8 ` µ → Gaia LANFRANCHI 0 + (2014) 212003. ∗ ` and R + K K K 112 EPJC → , 0 → Phys. Rev. , Eur. Phys. J., + PRL , , Calculation of B − µ Charm-loop effect in B + (2014) 094501. Bâ Form Factors ˛EŠwith from Lattice µ anomaly − 0 ` ∗ − at large hadronic recoil + D89 K ` µ s measurements − + K ` in the Standard Model from light cone sum → µ + → 0 ` 0 − → ∗ l -boson explanation of the B K 0 + explanations of the B K Lattice QCD calculation of form factors describing 0 → Vl → Phys. Rev. B , 11 0 → − ` B (2014) 2897. and Z FCNC quark couplings facing new b + 0 ` Comprehensive Bayesian Analysis of Rare (Semi)leptonic at low hadronic recoil and model-independent φ An explicit Z C74 − l Implications of b New physics in B → Differential branching fractions and isospin asymmetries of Angular analysis and differential branching fraction of the decay Test of lepton universality using B On minimal Z + S On the Standard Model predictions for R (2014) 133. Kl 06 → and B Left-handed Z − On the impact of power corrections in the prediction of B ` Understanding the B , Eur. Phys. J., (2015) 179. + , (2010) 089. JHEP , ` (2014) 125. , ∗ 09 (2012) 107. 09 K et al. Angular analysis of the decay B0 to K*0 mu mu from pp collisions at sqrt(s) = 8 Wrong sign and symmetric limits and non-decoupling in 2HDMs 12 et al. (2014) 069. Standard Model Predictions for B observables using form factors from Lattice QCD 01 , , → − The Decay B 01 decays (2013) 162002. (2014) 015005, arXiv:1308.1959. , JHEP µ JHEP , (2014), 151601. − + et al. , (LHCb collaboration), (LHCb collaboration), (LHCb collaboration), et al. JHEP − γ JHEP µ , 111 ∗ µ , D89 et al. + φ µ 113 JHEP (2013) 009, arXiv:1309.2466. K + µ , 0 et al. et al. et al. → ∗ 12 PRL → φ µ 0 s , K , arXiv:1503.05534. , arXiv:1507.08126 . → → 0 s rules and B TeV observables 010. the rare decays B 067. constraints QCD B and B JHEP B arXiv:1605.07633 [hep-ph]. 074002. and Radiative B Decays Phys. Rev. Rev. Lett. anomaly Rare Decays of Heavy Mesons [20] A. Bharucha, D. M. Straub, and R. Zwicky, [21] S. Descotes-Genon [24] A. Khodjamirian, T. Mannel, and Y.-M. Wang, [22] CMS collaboration, [23] A. Khodjamirian, T. Mannel, A. A. Pivovarov, and Y.-M. Wang, [29] C. Bouchard [25] R. R. Horgan, Z. Liu, S. Meinel, and M. Wingate, [28] C. Bobeth [26] R. Aaij [27] P.M. Ferreira [30] R. R. Horgan, Zhaofeng Liu, Stefan Meinel, and Matthew Wingate, [31] R. Aaij [32] R. Aaij [38] R. Gauld and F. Goertz and U. 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