Journal article
Observation of the baryonic decay ¯ 𝐵 0 →Λ+ 𝑐 ¯ 𝑝 𝐾−𝐾+
Physical review. D, Particles, fields, gravitation, and cosmology, Vol.91, 031102
2015
DOI: 10.1103/PhysRevD.91.031102
Abstract
We report the observation of the baryonic decay B¯0→Λc+p¯K-K+ using a data sample of 471×106 BB¯ pairs produced in e+e- annihilations at s=10.58GeV. This data sample was recorded with the BABAR detector at the PEP-II storage ring at SLAC. We find B(B¯0→Λc+p¯K-K+)=(2.5±0.4(stat)±0.2(syst)±0.6B(Λc+))×10-5, where the uncertainties are statistical, systematic, and due to the uncertainty of the Λc+→pK-π+ branching fraction, respectively. The result has a significance corresponding to 5.0 standard deviations, including all uncertainties. For the resonant decay B¯0→Λc+p¯φ, we determine the upper limit B(B¯0→Λc+p¯φ)<1.2×10-5 at 90% confidence level.
Details
- Title: Subtitle
- Observation of the baryonic decay ¯ 𝐵 0 →Λ+ 𝑐 ¯ 𝑝 𝐾−𝐾+
- Creators
- J.P Lees - University of SavoyV Poireau - University of SavoyV Tisserand - University of SavoyN Arnaud - Université Paris-SudM Davier - Université Paris-SudD Derkach - Université Paris-SudG Grosdidier - Université Paris-SudF. Le Diberder - Laboratoire de l'Accélérateur LinéaireA. M Lutz - Université Paris-SudB Malaescu - Université Paris-SudP Roudeau - Université Paris-SudA Stocchi - Université Paris-SudG Wormser - Université Paris-SudD Bernard - École PolytechniqueM Verderi - École PolytechniqueS Emery - Université Paris-SaclayG Vasseur - Université Paris-SaclayS Akar - Université Paris CitéE Ben-Haim - Laboratoire de Physique Nucléaire et de Hautes ÉnergiesM Bomben - Université Paris CitéG.R Bonneaud - Université Paris CitéH Briand - Université Paris CitéG Calderini - Université Paris CitéJ Chauvau - Laboratoire de Physique Nucléaire et de Hautes ÉnergiesPh Leruste - Université Paris CitéG Marchiori - Université Paris CitéJ Ocariz - Université Paris CitéBaBar Collaboration
- Contributors
- U Mallik (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physical review. D, Particles, fields, gravitation, and cosmology, Vol.91, 031102
- DOI
- 10.1103/PhysRevD.91.031102
- ISSN
- 1550-7998
- eISSN
- 1550-2368
- Publisher
- American Physical Society
- Grant note
- DOI: 10.13039/100000015, name: U.S. Department of Energy; DOI: 10.13039/100000001, name: National Science Foundation; DOI: 10.13039/501100000038, name: Natural Sciences and Engineering Research Council of Canada; DOI: 10.13039/501100002347, name: Bundesministerium für Bildung und Forschung; DOI: 10.13039/501100001659, name: Deutsche Forschungsgemeinschaft; DOI: 10.13039/501100004007, name: Istituto Nazionale di Fisica Nucleare; DOI: 10.13039/501100001712, name: Stichting voor Fundamenteel Onderzoek der Materie; DOI: 10.13039/501100005416, name: Norges Forskningsråd; DOI: 10.13039/501100003443, name: Ministry of Education and Science of the Russian Federation; DOI: 10.13039/501100004837, name: Ministerio de Ciencia e Innovación; DOI: 10.13039/501100000271, name: Science and Technology Facilities Council; DOI: 10.13039/501100001742, name: United States-Israel Binational Science Foundation; DOI: 10.13039/100011664, name: SLAC; name: Commissariat à l’Energie Atomique; DOI: 10.13039/501100012441, name: Institut National de Physique Nucléaire et de Physique des Particules; name: Marie-Curie IEF program; name: A. P. Sloan Foundation
- Language
- English
- Date published
- 2015
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199758202771
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