publication . Other literature type . Preprint . Article . 2016 . Embargo end date: 01 Jan 2016

On the standard model predictions for \(R_K\) and \(R_{K^*}\)

Marzia Bordone; Gino Isidori;
Open Access
  • Published: 08 Aug 2016
  • Publisher: Springer
  • Country: Switzerland
Abstract
We evaluate the impact of radiative corrections in the ratios $\Gamma[B\to M \mu^+\mu^-]/\Gamma[B\to M e^+e^-]$ when the meson $M$ is a $K$ or a $K^*$. Employing the cuts on $m^2_{\ell\ell}$ and the reconstructed $B$-meson mass presently applied by the LHCb Collaboration, such corrections do not exceed a few $\%$. Moreover, their effect is well described (and corrected for) by existing Montecarlo codes. Our analysis reinforces the interest of these observables as clean probe of physics beyond the Standard Model.
Subjects
free text keywords: Physics Institute, 530 Physics, High Energy Physics - Phenomenology, High Energy Physics - Experiment, Physics and Astronomy (miscellaneous), Engineering (miscellaneous)
Related Organizations
35 references, page 1 of 3

1. G. Hiller, F. Kruger, Phys. Rev. D 69, 074020 (2004). arXiv:hep-ph/0310219

2. R. Aaij et al. [LHCb Collaboration], Phys. Rev. Lett. 113, 151601 (2014). arXiv:1406.6482

3. S. Descotes-Genon, L. Hofer, J. Matias, J. Virto. arXiv:1510.04239

4. W. Altmannshofer, D.M. Straub. arXiv:1503.06199

5. J.P. Lees et al. [BaBar Collaboration], Phys. Rev. Lett. 109, 101802 (2012). arXiv:1205.5442

6. M. Huschle et al. [Belle Collaboration], Phys. Rev. D 92, 072014 (2015). arXiv:1507.03233

7. R. Aaij et al. [LHCb Collaboration], Phys. Rev. Lett. 115, 111803 (2015). arXiv:1506.08614

8. T. Huber, T. Hurth, E. Lunghi, JHEP 1506, 176 (2015). arXiv:1503.04849

9. T. Huber, T. Hurth, E. Lunghi, Nucl. Phys. B 802, 40 (2008). arXiv:0712.3009

10. T. Huber, E. Lunghi, M. Misiak, D. Wyler, Nucl. Phys. B 740, 105 (2006). arXiv:hep-ph/0512066

11. J. Gratrex, M. Hopfer, R. Zwicky, Phys. Rev. D 93, 054008 (2016). arXiv:1506.03970

12. D.R. Yennie, S.C. Frautschi, H. Suura, Ann. Phys. 13, 379 (1961)

13. S. Weinberg, Phys. Rev. 140, B516 (1965)

14. G. Isidori, Eur. Phys. J. C 53, 567 (2008). arXiv:0709.2439

15. M. Bordone, A. Greljo, G. Isidori, D. Marzocca, A. Pattori, Eur. Phys. J. C 75, 385 (2015). arXiv:1507.02555

35 references, page 1 of 3
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