12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Measurement of the angular and lifetime paramet...
View graph of relations

« Back

Measurement of the angular and lifetime parameters of the decays $B_{d}^{0}\to J/ψK^{*0}$ and $B_{s}^{0}\to J/ψφ$

Research output: Contribution to journalJournal article

Published

Article number032001
Journal publication date20/01/2009
JournalPhysical Review Letters
Journal number3
Volume102
Number of pages7
Original languageEnglish

Abstract

We present measurements of the linear polarization amplitudes and the strong relative phases that describe the flavor-untagged decays $B_{d}^{0}\to J/\psi K^{*0}$ and $B_{s}^{0}\to J/\psi\phi$ in the transversity basis. We also measure the mean lifetime $\bar{\tau}_{s}$ of the $B_{s}^{0}$ mass eigenstates and the lifetime ratio $\bar{\tau}_{s}/\tau_{d}$. The analyses are based on approximately 2.8 fb$^{-1}$ of data recorded with the D0 detector. From our measurements of the angular parameters we conclude that there is no evidence for a deviation from flavor SU(3) symmetry for these decays and that the factorization assumption is not valid for the $B_{d}^{0}\to J/\psi K^{*0}$ decay.

Bibliographic note

© 2009 The American Physical Society 7 pages, 4 figures. Submitted to Phys. Rev. Lett