The angular distribution and differential branching fraction of the decay B (0)→ K (∗0) μ (+) μ (−) are studied using a data sample, collected by the LHCb experiment in pp collisions at TeV, corresponding to an integrated luminosity of 1.0 fb(−1). Several angular observables are measured in bins of the dimuon invariant mass squared, q (2). A first measurement of the zero-crossing point of the forward-backward asymmetry of the dimuon system is also presented. The zero-crossing point is measured to be , where the uncertainty is the sum of statistical and systematic uncertainties. The results are consistent with the Standard Model predictions.

Differential branching fraction and angular analysis of the decay B 0 → K ∗0 μ + μ −

BALDINI, Wander;BOZZI, Concezio;FIORE, Marco;SAVRIE', Mauro;
2013

Abstract

The angular distribution and differential branching fraction of the decay B (0)→ K (∗0) μ (+) μ (−) are studied using a data sample, collected by the LHCb experiment in pp collisions at TeV, corresponding to an integrated luminosity of 1.0 fb(−1). Several angular observables are measured in bins of the dimuon invariant mass squared, q (2). A first measurement of the zero-crossing point of the forward-backward asymmetry of the dimuon system is also presented. The zero-crossing point is measured to be , where the uncertainty is the sum of statistical and systematic uncertainties. The results are consistent with the Standard Model predictions.
2013
R., Aaij; C., Abellan Beteta; B., Adeva; M., Adinolfi; C., Adrover; A., Affolder; Z., Ajaltouni; J., Albrecht; F., Alessio; M., Alexander; S., Ali; G....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2093412
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