Measurement of angular asymmetries in the decays B →k∗+

(The BABAR Collaboration)

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

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.

Original languageEnglish
Article number052015
JournalPhysical Review D
Volume93
Issue number5
DOIs
StatePublished - 28 Mar 2016

Funding

FundersFunder number
Stichting voor Fundamenteel Onderzoek der Materie
Institut National de Physique Nucléaire et de Physique des Particules
Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft
Instituto Nazionale di Fisica Nucleare
Norges Forskningsråd
Ministerio de Economía y Competitividad
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
U.S. Department of Energy
Marie Curie
Ministry of Education and Science of the Russian Federation
Natural Sciences and Engineering Research Council of Canada
Alfred P. Sloan Foundation
Science and Technology Facilities CouncilST/N000420/1
UK Research and Innovation53706
National Science Foundation1404070, 1505719
United States-Israel Binational Science FoundationU.S.-Israel

    Fingerprint

    Dive into the research topics of 'Measurement of angular asymmetries in the decays B →k∗+'. Together they form a unique fingerprint.

    Cite this