Institute: MPI für Physik     Collection: YB 2016     Display Documents

ID: 715984.0, MPI für Physik / YB 2016
Observation of the decay $B^0 \\to \\eta' K^*(892)^0$
Authors:
Date of Publication (YYYY-MM-DD):2014
Title of Journal:Physical Review D
Journal Abbrev.:Phys.Rev.D
Issue / Number:90
Start Page:072009
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:We report a search for charmless hadronic decays of neutral $B$ mesons to $\\eta' K^{*}(892)^{0}$. The results are based on a 711fb$^{-1}$ data sample that contains $772\\times 10^6 B\\overline{B}$ pairs, collected at the $\\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric energy $e^+e^-$ collider. We observe the decay for the first time with a significance of 5.0 standard deviations and obtain its branching fraction ${\\cal B}[B^0\\to\\eta' K^{*}(892)^{0}]=[2.6\\pm0.7{\\rm (stat)}\\pm0.2{\\rm (syst)}]\\times 10^{-6}$. We also measure the $CP$ violating asymmetry as ${\\cal A}_{CP}[B^0\\to\\eta' K^{*}(892)^{0}]=-0.22\\pm0.29{\\rm (stat)}\\pm0.07{\\rm syst}$.
Classification / Thesaurus:Belle II
Comment of the Author/Creator:11 pages, 2 figures, submitted PRD(RC)
External Publication Status:published
Document Type:Article
Communicated by:MPI für Physik
Affiliations:
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