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

Articolo
Data di Pubblicazione:
2016
Abstract:
We study the lepton forward-backward asymmetry AFB and the longitudinal K* polarization F-L, as well as an observable P-2 derived from them, in the rare decays B -> K*l(+)l(-), where l(+)l(-) is either e(+)e(-) or mu(+)mu(-), using the full sample of 471 million B (B) over bar events collected at the Upsilon(4S) resonance with the BABAR, detector at the PEP-II e(+)e(-) collider. We separately fit and report results for the K*(0)(892)l(+)l(-) and K*(+)(892) l(+)l(-) final states, as well as their combination K*l(+)l(-), in five disjoint dilepton mass-squared bins. An angular analysis of B+ -> K*(+)l(+)l(-) decays is presented here for the first time.
Tipologia CRIS:
01.01 Articolo in rivista
Keywords:
particle physics; babar; b meson; asymmetries; decays
Elenco autori:
Onorato, Giovanni
Autori di Ateneo:
ONORATO GIOVANNI
Link alla scheda completa:
https://iris.cnr.it/handle/20.500.14243/402236
Pubblicato in:
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Journal
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