Search for the Z[subscript 1](4050)[superscript +] and Z[subscript 2](4250)[superscript +] states in B̅ [superscript 0]→[subscript χc1] K[superscript -]π[superscript +] and B[superscript +] →[subscript χc1]K[superscript 0 over subscript S}π[superscript +]
Name
Lees-2012-Search for the Z 1(4050).pdf
Size
1.03 MB
Format
Adobe PDF
Checksum (MD5)
1ddd78e263bea9bdf558753f5a8bb008
Author(s)
Dujmic, Denis
Sciolla, Gabriella
Cowan, Ray F
Date Issued
March 2012
Journal
Physical Review D
Publisher
American Physical Society
Citation
Lees, J. et al. “Search for the Z[subscript 1](4050)[superscript +] and Z[subscript 2](4250)[superscript +] states in B̅ [superscript 0]→[subscript χc1] K[superscript -]π[superscript +] and B[superscript +] →[subscript χc1]K[superscript 0 over subscript S}π[superscript +].” Physical Review D 85.5 (2012). © 2012 American Physical Society
Version
Final published version
Abstract
We search for the Z[subscript 1](4050)[superscript +] and Z[subscript 2](4250)[superscript +] states, reported by the Belle Collaboration, decaying to [subscript χc1]π[superscript +] in the decays B̅ [superscript 0]→[subscript χc1] K[superscript -]π[superscript +] and B[superscript +] →[subscript χc1]K[superscript 0 over subscript S}π[superscript +] where [subscript χc1]→J/ψγ. The data were collected with the BABAR detector at the SLAC PEP-II asymmetric-energy e[superscript +]e[superscript -] collider operating at center-of-mass energy 10.58 GeV, and correspond to an integrated luminosity of 429 fb[superscript -1]. In this analysis, we model the background-subtracted, efficiency-corrected [subscript χc1]π[superscript +] mass distribution using the Kπ mass distribution and the corresponding normalized Kπ Legendre-polynomial moments, and then test the need for the inclusion of resonant structures in the description of the [subscript χc1]π[superscript +] mass distribution. No evidence is found for the Z[subscript 1](4050)[superscript +] and Z[subscript 2](4250)[superscript +] resonances, and 90% confidence level upper limits on the branching fractions are reported for the corresponding B-meson decay modes.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevD.85.052003
