Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/119337
Title: | Measurement of angular asymmetries in the decays B →k∗+ |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Leptons (Física nuclear) Partícules (Física nuclear) Leptons (Nuclear physics) Particles (Nuclear physics) |
Issue Date: | 28-Mar-2016 |
Publisher: | American Physical Society |
Abstract: | We study the lepton forward-backward asymmetry A F B 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 μ + μ − , using the full sample of 471 million B ¯ B events collected at the Υ ( 4 S ) 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. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.93.052015 |
It is part of: | Physical Review D, 2016, vol. 93, num. 5, p. 52015-1-52015-16 |
URI: | http://hdl.handle.net/2445/119337 |
Related resource: | https://doi.org/10.1103/PhysRevD.93.052015 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
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669929.pdf | 1.22 MB | Adobe PDF | View/Open |
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