Dalitz plot analysis of B[superscript -]-->D[superscript +]pi[superscript -]pi[superscript -]
Author(s)
Zhao, M.; Yamamoto, R. K.; Taylor, Frank E.; Spitznagel, M.; Sciolla, Gabriella; Henderson, Shawn Wesley; Dujmic, Denis; Cowan, Ray Franklin; Fisher, Peter H.; ... Show more Show less
DownloadAubert-2009-Dalitz plot analysis.pdf (1.019Mb)
PUBLISHER_POLICY
Publisher Policy
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.
Alternative title
Dalitz plot analysis of B-→D+π-π-
Terms of use
Metadata
Show full item recordAbstract
We report on a Dalitz plot analysis of B-→D+π-π- decays, based on a sample of about 383×106 Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We find the total branching fraction of the three-body decay: B(B-→D+π-π-)=(1.08±0.03±0.05)×10-3. We observe the established D2*0 and confirm the existence of D0*0 in their decays to D+π-, where the D2*0 and D0*0 are the 2+ and 0+cu̅ P-wave states, respectively. We measure the masses and widths of D2*0 and D0*0 to be: mD2*0=(2460.4±1.2±1.2±1.9) MeV/c2, ΓD2*0=(41.8±2.5±2.1±2.0) MeV, mD0*0=(2297±8±5±19) MeV/c2, and ΓD0*0=(273±12±17±45) MeV. The stated errors reflect the statistical and systematic uncertainties, and the uncertainty related to the assumed composition of signal events and the theoretical model.
Date issued
2009-06Journal
Physical Review D
Publisher
American Physical Society
Citation
BABAR Collaboration et al. “Dalitz plot analysis of B--->D[superscript +] pi[superscript -] pi[superscript -].” Physical Review D 79.11 (2009): 112004. © 2009 American Physical Society.
Version: Final published version
ISSN
1089-4918