MIT Libraries homeMIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Observation and study of the baryonic B-meson decays B→D(*)pp̅ (π)(π)

Author(s)
Cowan, Ray Franklin; Dujmic, Denis; Sciolla, Gabriella; Zhao, M.
Thumbnail
DownloadSanchez-2012-Observation and study of the.pdf (5.111Mb)
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.

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.
Metadata
Show full item record
Abstract
We present results for B-meson decay modes involving a charm meson, protons, and pions using 455×10[superscript 6] BB̅ pairs recorded by the BaBar detector at the SLAC PEP-II asymmetric-energy e[superscript +]e[superscript -] collider. The branching fractions are measured for the following ten decays: B̅ [superscript 0]→D[superscript 0]pp̅ , B̅ [superscript 0]→D[superscript *0]pp̅ , B̅ [superscript 0]→D[superscript +]pp̅ π[superscript -], B̅ [superscript 0]→D*[superscript +]pp̅ π[superscript -], B[superscript -]→D[superscript 0]pp̅ π[superscript -], B[superscript -]→D[superscript *0]pp̅ π[superscript -], B̅ [superscript 0]→D[superscript 0]pp̅ π[superscript -]π[superscript +], B̅ [superscript 0]→D[superscript *0]pp̅ π[superscript -]π[superscript +], B-→D[superscript +]pp̅ π[superscript -]π[superscript -], and B-→D[superscript *+]pp̅ π[superscript -]π[superscript -]. The four B[superscript -] and the two five-body B̅ 0 modes are observed for the first time. The four-body modes are enhanced compared to the three- and the five-body modes. In the three-body modes, the M(pp̅ ) and M(D [[superscript (*)0]p) invariant-mass distributions show enhancements near threshold values. In the four-body mode B̅ [superscript 0]→D[superscript +]pp̅ π[superscript -], the M(pπ[superscript -]) distribution shows a narrow structure of unknown origin near 1.5  GeV/c[superscript 2]. The distributions for the five-body modes, in contrast to the others, are similar to the expectations from uniform phase-space predictions.
Date issued
2012-05
URI
http://hdl.handle.net/1721.1/72156
Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review D
Publisher
American Physical Society
Citation
del Amo Sanchez, P. et al. “Observation and study of the baryonic B-meson decays B→D(*)pp̅ (π)(π).” Physical Review D 85.9 (2012). © 2012 American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918

Collections
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries homeMIT Libraries logo

Find us on

Twitter Facebook Instagram YouTube RSS

MIT Libraries navigation

SearchHours & locationsBorrow & requestResearch supportAbout us
PrivacyPermissionsAccessibility
MIT
Massachusetts Institute of Technology
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.