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Angular analysis of charged and neutral B → Kμ + μ − decays
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LCHb Collaboration (Including: Back, J. J., Blake, Thomas, Craik, Daniel, Dossett, D., Gershon, T. J., Kreps, Michal, Latham, Thomas, Pilar, T., Poluektov, Anton, Reid, Matthew M., Silva Coutinho, R., Wallace, Charlotte, Whitehead, M. (Mark) and Williams, M. P.). (2014) Angular analysis of charged and neutral B → Kμ + μ − decays. Journal of High Energy Physics, Volume 2014 (Number 5). doi:10.1007/JHEP05(2014)082 ISSN 1029-8479.
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Official URL: http://dx.doi.org/10.1007/JHEP05(2014)082
Abstract
The angular distributions of the rare decays B + → K + μ + μ − and {B^0}\to K_{\mathrm{S}}^0{\mu^{+}}{\mu^{-}} are studied with data corresponding to 3fb−1 of integrated luminosity, collected in proton-proton collisions at 7 and 8 TeV centre-of-mass energies with the LHCb detector. The angular distribution is described by two parameters, F H and the forward-backward asymmetry of the dimuon system A FB, which are determined in bins of the dimuon mass squared. The parameter F H is a measure of the contribution from (pseudo)scalar and tensor amplitudes to the decay width. The measurements of A FB and F H reported here are the most precise to date and are compatible with predictions from the Standard Model.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Journal of High Energy Physics | ||||
Publisher: | Springer | ||||
ISSN: | 1029-8479 | ||||
Official Date: | 19 May 2014 | ||||
Dates: |
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Volume: | Volume 2014 | ||||
Number: | Number 5 | ||||
DOI: | 10.1007/JHEP05(2014)082 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Open Access (Creative Commons) |
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