BABAR Publications

Detailed Index as of March 29, 2024 02:30

PUB-05/038 Study of the X(3872) and Y(4260) in B0 -> J/psi pi+ pi- K0 and B- -> J/psi pi+ pi- K- decays
Doc Type Journal Papers
Record Created July 1, 2005
SLAC-PUB
SLAC-PUB-11370  No citations
Preprint # hep-ex/0507090
Abstract
content_type = "text/plain"
user_agent   = "claudebot"
moz          = "claudebot"
moz_version  = ""
We present results of a search for the X(3872) in B0 --> X(3872) K0_S, X(3872) --> J/\psi pi+ pi-, improved measurements of B- --> X(3872) K-, and a study of the J/psi pi+ pi- mass region above the X(3872). We use 232 million BBbar pairs collected at the Upsilon(4S) resonance with the BaBar detector at the PEP-II e+e- asymmetric-energy storage rings. The results include the 90% confidence interval 1.34 x 10^{-6} < BR(B0 --> X(3872)K0, X --> J/psi pi+ pi-) < 10.3 x 10^{-6} and the branching fraction BR(B- --> X(3872)K-, X --> J/psi pi+ pi-)=(10.1\pm 2.5\pm 1.0) x 10^{-6}. We observe a (2.7\pm 1.3 \pm 0.2) MeV/c^2 mass difference of the X(3872) produced in the two decay modes. Furthermore, we find an excess of J/psi pi+ pi- events with an invariant mass just above 4.2 GeV/c^2 that is consistent with recent observations in initial state radiation events.
Revisions and Files 2 revised December 7, 2005
File Date
Thumbnails
File Name File Type File Format File Size (Kb) Comments
08-DEC-2005 babar-pub-05-038.pdf Paper (journal paper or conference submission by BABAR Collaboration) pdf 162.92
08-DEC-2005 babar-pub-05-038.ps.gz Paper (journal paper or conference submission by BABAR Collaboration) ps.gz 180.10
08-DEC-2005 fig1a.eps Figure or plot eps 17.56
08-DEC-2005 fig1b.eps Figure or plot eps 18.00
08-DEC-2005 fig1c.eps Figure or plot eps 17.14
08-DEC-2005 fig1d.eps Figure or plot eps 16.41
08-DEC-2005 fig2.eps Figure or plot eps 15.49
Submitted ToPhysical Review D - Rapid Communications
Date SubmittedJuly 21, 2005
Journal Year2006
Journal Volume73
Journal Article/Page Range011101
1 revised July 1, 2005
File Date
Thumbnails
File Name File Type File Format File Size (Kb) Comments
21-JUL-2005 abstract.txt Abstract txt 0.84
Submitted ToPhysical Review Letters
Date SubmittedJuly 21, 2005
Submitted To2005 International Europhysics Conference on High Energy Physics
Categories
  • AWG: Charmonium