BABAR Collaboration (Including: Harrison, P. F., Ilić, Jelena, Latham, Thomas and Mohanty, G. B.). (2008) Observation of B-0 -> K-*0(K)over-bar(*0) and search for B-0 -> K-*0(K)over-bar(*0). Physical Review Letters, Volume 100 (Number 8). pp. 6-13. ISSN 0031-9007.

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Abstract

We report the observation of the b -> d penguin-dominated decay B-0 -> K-*0(K) over bar (*0) with a sample of 383.2 +/- 4.2 million B (B) over bar pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at the Stanford Linear Accelerator Center. The measured branching fraction is B(B-0 -> K-*0(K) over bar (*0))=[1.28(-0.30)(+0.35)+/- 0.11]x10(-6) and the fraction of longitudinal polarization is f(L)(B-0 -> K-*0(K) over bar (*0))=0.80(-0.12)(+0.10)+/- 0.06. The first error quoted is statistical and the second systematic. We also obtain an upper limit at the 90% confidence level on the branching fraction for B(B-0 ->(KK*0)-K-*0)< 0.41x10(-6).

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH):	B mesons -- Decay, Branching fractions (Nuclear physics)
Journal or Publication Title:	Physical Review Letters
Publisher:	American Physical Society
ISSN:	0031-9007
Official Date:	29 February 2008
Dates:	Date Event 29 February 2008 Published
Volume:	Volume 100
Number:	Number 8
Number of Pages:	7
Page Range:	pp. 6-13
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	United States. Department of Energy, National Science Foundation (U.S.) (NSF), Natural Sciences and Engineering Research Council of Canada (NSERC), France. Commissariat à l'énergie atomique (CEA), Institut national de physique nucléaire et de physique des particules (IN2P3), Centre national de la recherche scientifique (France) (CNRS), Germany. Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Istituto nazionale di fisica nucleare (INFN), Stichting voor Fundamenteel Onderzoek der Materie (FOM) [Foundation for Fundamental Research on Matter], Norges forskningsråd [Norwegian Research Council], Ministry of Education and Science of the Russian Federation (MESRF), Spain. Ministerio de Ciencia e Innovación (MCI), Science and Technology Facilities Council (Great Britain) (STFC), European Union (EU), Alfred P. Sloan Foundation

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