Study of Exclusive Radiative<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">B</mml:mi></mml:math>Meson Decays

Coan, T. E.; Fadeyev, V.; Maravin, Y.; Narsky, I.; Stroynowski, R.; Ye, J.; Włodek, T.; Artuso, M.; Ayad, R.; Boulahouache, C.; Bukin, K.; Dambasuren, E.; Karamov, S.; Köpp, S.; Majumder, G.; Moneti, G. C.; Mountain, R.; Schuh, S.; Skwarnicki, T.; Stone, S.; Viehhauser, G. H. A.; Wang, J. C.; Wolf, A.; Wu, J.; Csorna, S. E.; Dankó, I.; Lean, K. W. Mc; Márka, S.; Xu, Z.; Godang, R.; Kinoshita, K.; Lai, I. C.; Schrenk, S.; Bonvicini, G.; Cinabro, D.; Perera, L. P.; Zhou, G. J.; Eigen, G.; Lipeles, E.; Śchmidtler, M.; Shapiro, A.; Sun, W.; Weinstein, A. J.; Würthwein, F.; Jaffe, D. E.; Masek, G.; Paar, H. P.; Potter, E. M.; Prell, S.; Sharma, V.; Asner, D. M.; Eppich, A.; Hill, T. S.; Lange, D.; Morrison, R. J.; Briere, R. A.; Behrens, B. H.; Ford, W. T.; Gritsan, A. V.; Roy, J.; Smith, J. G.; Alexander, J.; Baker, R. C.; Bebek, C.; Berger, B. E.; Berkelman, K.; Blanc, F.; Boisvert, V.; Cassel, D. G.; Dickson, M.; Drell, P. S.; Ecklund, K. M.; Ehrlich, R.; Foland, A.; Gaidarev, P.; Gibbons, L.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hopman, P. I.; Jones, C. D.; Kreinick, D. L.; Lohner, M.; Magerkurth, A.; Meyer, T. O.; Mistry, N. B.; Nordberg, E.; Patterson, J. R.; Peterson, D.; Riley, D.; Thayer, J. G.; Thies, P. G.; Valant-Spaight, B.; Warburton, A.; Avery, P.; Prescott, C.; Rubiera, A. I.; Yelton, J.; Zheng, J. P.; Brandenburg, G.; Ershov, A.; Gao, Y. S.; Kim, D. Y.J.; Wilson, Richard; Browder, T. E.; Li, Y.; Rodriguez, J. L.; Yamamoto, H.; Bergfeld, T.; Eisenstein, B. I.; Ernst, J.; Gladding, G. E.; Gollin, G. D.; Hans, R. M.; Johnson, E.; Karliner, I.; Marsh, M. A.; Palmer, M.; Plager, C.; Sedlack, C.; Selen, M.; Thaler, J. J.; Williams, James S.; Edwards, K. W.; Janicek, R.; Patel, P. M.; Sadoff, A. J.; Ammar, R.; Bean, A.; Besson, D.; Davis, R.; Kwak, N.; Zhao, X.; Anderson, S.; Frolov, V. V.; Kubota, Y.; Lee, S. J.; Mahapatra, R.; Neill, J. J.O.; Poling, R.; Riehle, T.; Smith, A.; Urheim, J.; Ahmed, S.; Alam, M. S.; Athar, S. B.; Jian, L.; Liu, Ling; Mahmood, A. H.; Saleem, M.; Timm, S.; Wappler, F. R.; Anastassov, A.; Duboscq, J. E.; Gan, K. K.; Gwon, C.; Hart, T.; Honscheid, K.; Hufnagel, D.; Kagan, H.; Kass, R.; Pedlar, T. K.; Schwarthoff, H.; Thayer, J. B.; Toerne, E. von; Zoeller, M. M.; Richichi, S. J.; Severini, H.; Skubic, P.; Undrus, A.; Chen, S.; Fast, J. E.; Hinson, J. W.; Lee, J.; Menon, N.; Miller, D. H.; Shibata, E. I.; Shipsey, I. P. J.; Pavlunin, V.; Cronin-Hennessy, D.; Kwon, Y. J.; Lyon, A. L.; Thorndike, E. H.; Jessop, C. P.; Marsiske, H.; Перл, М.; Savinov, V.; Ugolini, D.; Zhou, Xiang

doi:10.1103/physrevlett.84.5283

Cited by 144 publications

(71 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3 and Appendix A . : Note that we include only the LHCb measurements in the GeV bin as part of the “selection” data set, but not the low-recoil binsChannelConstraintsKinematicsSourceSelection [1, 2] GeV [3, 4] –[5, 6] , , –[7–11] GeV [12–14]– GeV [15]– GeV [12–14, 16, 17]– " [12–…”

Section: Observables and Experimental Inputmentioning

confidence: 99%

Comprehensive Bayesian analysis of rare (semi)leptonic and radiative $$\varvec{B}$$ B decays

2014

View full text Add to dashboard Cite

The available data on decays are in good agreement with the Standard Model when permitting subleading power corrections of about at large hadronic recoil. Constraining new-physics effects in , , , the data still demand the same size of power corrections as in the Standard Model. In the presence of chirality-flipped operators, all but one of the power corrections reduce substantially. The Bayes factors are in favor of the Standard Model. Using new lattice inputs for form factors and under our minimal prior assumption for the power corrections, the favor shifts toward models with chirality-flipped operators. We use the data to further constrain the hadronic form factors in and transitions.

show abstract

Section: Observables and Experimental Inputmentioning

confidence: 99%

Comprehensive Bayesian analysis of rare (semi)leptonic and radiative $$\varvec{B}$$ B decays

2014

View full text Add to dashboard Cite

show abstract

“…Correlations of this data are not public and are neglected. In addition, we include in the fit the BRðB → K Ã γÞ [56][57][58][59][60] which provides an important constraint to a hadronic form factor in the fit [29]. Including the measurements of R K , R K Ã and BRðB s → μμÞ, the total number of measurements in the fit is 65.…”

Section: Fits Tomentioning

confidence: 99%

Towards the discovery of new physics with lepton-universality ratios of b→sℓℓ decays

et al. 2017

View full text Add to dashboard Cite

Tests of lepton-universality as rate ratios in b → sll transitions can be predicted very accurately in the Standard Model. The deficits with respect to expectations reported by the LHCb experiment in muon-toelectron ratios of the B → K ðÃÞ ll decay rates thus point to genuine manifestations of lepton nonuniversal new physics. In this paper, we analyze these measurements in the context of effective field theory. First, we discuss the interplay of the different operators in R K and R K Ã and provide predictions for R K Ã in the Standard Model and in new-physics scenarios that can explain R K . We also provide approximate numerical formulas for these observables in bins of interest as functions of the relevant Wilson coefficients. Secondly, we perform frequentist fits to R K and R K Ã . The Standard Model disagrees with these measurements at 3.7σ significance. We find excellent fits in scenarios with combinations ofwith pulls relative to the Standard Model in the region of 4σ. An important conclusion of our analysis is that a lepton-specific contribution to O 10 is important to understand the data. Under the hypothesis that new-physics couples selectively to the muons, we also present fits to other b → sμμ data with a conservative error assessment and comment on more general scenarios. Finally, we discuss new lepton universality ratios that, if new physics is the origin of the observed discrepancy, should contribute to the statistically significant discovery of new physics in the near future.

show abstract

“…Although the branching fraction of the B 0 → K * 0 γ decay has been measured [1][2][3] to be consistent with the Standard Model (SM) prediction [4], BSM effects could still be present and detectable through more detailed studies of the decay process. In particular, in the SM the photon helicity is predominantly left-handed, with a small right-handed current arising from long distance effects and from the non-zero value of the ratio of the s-quark mass to the b-quark mass.…”

Section: Introductionmentioning

confidence: 82%

“…[5] takes into account only the photon diagrams of figure 1. When evaluated in the 30 to 1000 MeV/c 2 e + e − invariant mass interval using B(B 0 → K * 0 γ) [1][2][3], it predicts a B 0 → K * 0 e + e − branching fraction of 2.35 × 10 −7 . A full calculation has been recently performed [30] and the numerical result for the e + e − invariant mass interval of interest is (2.43 +0.66 −0.47 ) × 10 −7 .…”

Section: Discussionmentioning

confidence: 99%

Measurement of the B 0 → K ∗0 e + e − branching fraction at low dilepton mass

Aaij¹,

Beteta²,

Adeva³

et al. 2013

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

The branching fraction of the rare decay B 0 → K * 0 e + e − in the dilepton mass region from 30 to 1000 MeV/c 2 has been measured by the LHCb experiment, using pp collision data, corresponding to an integrated luminosity of 1.0 fb −1 , at a centre-of-mass energy of 7 TeV. The decay mode B 0 → J/ψ (e + e − )K * 0 is utilized as a normalization channel. The branching fraction B(B 0 → K * 0 e + e − ) is measured to bewhere the first error is statistical, the second is systematic, and the third comes from the uncertainties on the B 0 → J/ψ K * 0 and J/ψ → e + e − branching fractions.

show abstract

Study of Exclusive RadiativeBMeson Decays

Cited by 144 publications

References 21 publications

Comprehensive Bayesian analysis of rare (semi)leptonic and radiative $$\varvec{B}$$ B decays

Comprehensive Bayesian analysis of rare (semi)leptonic and radiative $$\varvec{B}$$ B decays

Towards the discovery of new physics with lepton-universality ratios of b→sℓℓ decays

Measurement of the B 0 → K ∗0 e + e − branching fraction at low dilepton mass

Contact Info

Product

Resources

About