We study the lepton forward-backward asymmetry AFB and the longitudinal K∗ polarization FL, as well as an observable P2 derived from them, in the rare decays B→K∗+, where + is either e+e- or μ+μ-, using the full sample of 471 million BB-events collected at the (4S) resonance with the BABAR, detector at the PEP-II e+e- collider. We separately fit and report results for the K∗0(892)+ and K∗+(892)+ final states, as well as their combination K∗+, in five disjoint dilepton mass-squared bins. An angular analysis of B+→K∗++ decays is presented here for the first time.

Measurement of angular asymmetries in the decays B -> K*l(+) l(+) / Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Stugu, B., Brown, D.N., Kerth, L.T., Kolomensky, Y.u.G., Lee, M.J., Lynch, G., Koch, H., Schroeder, T., Hearty, C., Mattison, T.S., Mckenna, J.A., So, R.Y., Khan, A., Blinov, V.E., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 93:5(2016). [10.1103/PhysRevD.93.052015]

Measurement of angular asymmetries in the decays B -> K*l(+) l(+)

CARPINELLI, Massimo;
2016-01-01

Abstract

We study the lepton forward-backward asymmetry AFB and the longitudinal K∗ polarization FL, as well as an observable P2 derived from them, in the rare decays B→K∗+, where + is either e+e- or μ+μ-, using the full sample of 471 million BB-events collected at the (4S) resonance with the BABAR, detector at the PEP-II e+e- collider. We separately fit and report results for the K∗0(892)+ and K∗+(892)+ final states, as well as their combination K∗+, in five disjoint dilepton mass-squared bins. An angular analysis of B+→K∗++ decays is presented here for the first time.
2016
Inglese
93
5
http://harvest.aps.org/bagit/articles/10.1103/PhysRevD.93.052015/apsxml
Nuclear and High Energy Physics
Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D. N.; Kerth, L. T.; Kolomensky, Y. u. G.; Lee, M. J.; ...espandi
Measurement of angular asymmetries in the decays B -> K*l(+) l(+) / Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Stugu, B., Brown, D.N., Kerth, L.T., Kolomensky, Y.u.G., Lee, M.J., Lynch, G., Koch, H., Schroeder, T., Hearty, C., Mattison, T.S., Mckenna, J.A., So, R.Y., Khan, A., Blinov, V.E., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 93:5(2016). [10.1103/PhysRevD.93.052015]
info:eu-repo/semantics/article
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/175715
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