Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Measurement of lifetime and decay-width difference in Bs0→J/ψϕ decays

Tools
- Tools
+ Tools

CDF Collaboration (Including:

Aaltonen, T., Abulencia, A., Adelman, J., Akimoto, T., Albrow, M., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A. et al.
). (2008) Measurement of lifetime and decay-width difference in Bs0→J/ψϕ decays. Physical Review Letters, Vol.100 (No.12). Article no. 121803. doi:10.1103/PhysRevLett.100.121803

Research output not available from this repository, contact author.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.100.121803

Request Changes to record.

Abstract

We measure the mean lifetime τ=2/(ΓL+ΓH) and the decay-width difference ΔΓ=ΓL-ΓH of the light and heavy mass eigenstates of the Bs0 meson, BsL0 and BsH0, in Bs0→J/ψϕ decays using 1.7  fb-1 of data collected with the CDF II detector at the Fermilab Tevatron pp¯ collider. Assuming CP conservation, a good approximation for the Bs0 system in the standard model, we obtain ΔΓ=0.076-0.063+0.059(stat)±0.006(syst)  ps-1 and τ=1.52±0.04(stat)±0.02(syst)  ps, the most precise measurements to date. Our constraints on the weak phase and ΔΓ are consistent with CP conservation.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
Journal or Publication Title: Physical Review Letters
Publisher: American Physical Society
ISSN: 0031-9007
Official Date: 28 March 2008
Dates:
DateEvent
28 March 2008Published
Volume: Vol.100
Number: No.12
Page Range: Article no. 121803
DOI: 10.1103/PhysRevLett.100.121803
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: U.S. Department of Energy, National Science Foundation (NSF), Istituto Nazionale di Fisica Nucleare, Ministry of Education, Culture, Sports, Science and Technology of Japan, Natural Sciences and Engineering Research Council (Canada) (NSERC), National Science Council of the Republic of China, Swiss National Science Foundation, A.P. Sloan Foundation, Bundesministerium für Bildung und Forschung (Germany), Korean Science and Engineering Foundation, Korean Research Foundation, Science and Technology Facilities Council (Great Britain) (STFC), Royal Society (UK), Institut National de Physique Nucleaire et Physique des Particules/ CNRS, Russian Foundation for Basic Research, Comisión Interministerial de Ciencia y Tecnología (Spain), European Community's Human Potential Programme (ECHPP), Slovak R&D Agency, Academy of Finland

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item
twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us