Published March 30, 2009 | Version Published
Journal Article Open

Evidence for X(3872) → Ψ (2S)y in B^± → X(3872)K^± Decays and a Study of B → ccyK

Creators

Abstract

In a search for B → ccyK decays with the BABAR detector, where cc includes J/Ψ and Ψ (2S), and K includes K^±, K^0_S , and K^*(892), we find evidence for X(3872) → J/Ψy and X(3872) → Ψ (2S) with 3:6σ and 3:5σ significance, respectively. We measure the product of branching fractions B(B^± → X(3872)K^±)B(X(3872) → J/Ψy)= [2:8 ± 0:8(stat) ± 0:1(syst)]X 10^(-6) and B(B^± → X(3872)K^±) X B(X(3872) → Ψ (2S)y) = [9:5 ± 2:7(stat) ± 0:6(syst)] X 10^(-6).

Additional Information

© 2009 The American Physical Society. Received 2 September 2008; published 30 March 2009. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), and STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation.

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Additional details

Additional titles

Alternative title
Evidence for X(3872)→ψ2Sγ in B±→X3872K± decays, and a study of B→cc¯γK

Identifiers

Eprint ID
16522
Resolver ID
CaltechAUTHORS:20091029-142440310

Funding

Department of Energy (DOE)
NSF
Natural Sciences and Engineering Research Council of Canada (NSERC)
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
Centre National de la Recherche Scientifique (CNRS)
Bundesministerium für Bildung und Forschung (BMBF)
Deutsche Forschungsgemeinschaft (DFG)
Istituto Nazionale di Fisica Nucleare (INFN)
Stichting voor Fundamenteel Onderzoek der Materie (FOM)
Norwegian Research Council
Ministry of Education and Science of the Russian Federation
Ministerio de Educación y Ciencia (MEC)
Science and Technology Facilities Council (STFC)
Marie Curie Fellowship
Alfred P. Sloan Foundation
Commissariat à l'Energie Atomique (CEA)

Dates

Created
2009-11-02
Created from EPrint's datestamp field
Updated
2021-11-08
Created from EPrint's last_modified field