MIT 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.

Amplitude analysis of B0→K+π-π0 [B superscript 0 →K superscript + pi superscript - pi superscript 0] and evidence of direct CP violation in B→K*π [B → K superscript asterisk pi] decays

Author(s)
Dujmic, Denis; Sciolla, Gabriella; Cowan, Ray F
Thumbnail
DownloadLees-2011-Amplitude analysis o.pdf (1.691Mb)
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 analyze the decay B0→K+π-π0 [B superscript 0 →K superscript + pi superscript - pi superscript 0] with a sample of 4.54×108 [4.54 x 10 superscript 8] BB̅ [B B overstrike] events collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, and extract the complex amplitudes of seven interfering resonances over the Dalitz plot. These results are combined with amplitudes measured in B0→KS0π+π- [B superscript 0 →K subscript S superscript 0 pi superscript + pi superscript -] decays to construct isospin amplitudes from B0→K*π [B superscript 0 → K superscript * pi] and B0→ρK [B superscript 0 → pK] decays. We measure the phase of the isospin amplitude Φ3/2 [phi subscript 3/2], useful in constraining the Cabibbo-Kobayashi-Maskawa unitarity triangle angle γ and evaluate a CP rate asymmetry sum rule sensitive to the presence of new physics operators. We measure direct CP violation in B0→K*+π- [B superscript 0 → K superscript * + pi superscript -] decays at the level of 3σ [3 delta] when measurements from both B0→K+π-π0 [B superscript 0 →K superscript + pi superscript - pi superscript 0] and B0→KS0π+π- [B superscript 0 →K subscript S superscript 0 pi superscript + pi superscript -]decays are combined.
Date issued
2011-06
URI
http://hdl.handle.net/1721.1/65571
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical review D
Publisher
American Physical Society
Citation
Lees, J. P. et al. "Amplitude analysis of B0→K+π-π0 and evidence of direct CP violation in B→K*π decays" Phys. Rev. D 83, 112010 (2011). © 2011 American Physical Society
Version: Final published version
ISSN
1550-7998
1550-2368

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
PrivacyPermissionsAccessibilityContact us
MIT
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.