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Measurement of the CP-violating phase phi sJ/psi phi using the flavor-tagged decay Bs(0) -> J/psi phi in 8 fb(-1) of p(p)over-bar collisions
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2012 (English)In: Physical Review D, ISSN 1550-7998, Vol. 85, no 3, 032006- p.Article in journal (Refereed) Published
Abstract [en]

We report an updated measurement of the CP-violating phase, phi(J/psi phi)(s), and the decay-width difference for the two mass eigenstates, Delta Gamma(s), from the flavor-tagged decay B-s(0) -> J/psi phi. The data sample corresponds to an integrated luminosity of 8.0 fb(-1) accumulated with the D0 detector using p (p) over bar collisions at root s = 1.96 TeV produced at the Fermilab Tevatron collider. The 68% Bayesian credibility intervals, including systematic uncertainties, are Delta Gamma(s) = 0.163(-0.064)(+0.065) ps(-1) and phi(J/psi phi)(s) = -0.55(-0.36)(+0.38). The p-value for the Standard Model point is 29.8%.

Place, publisher, year, edition, pages
2012. Vol. 85, no 3, 032006- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-171423DOI: 10.1103/PhysRevD.85.032006ISI: 000300570300003OAI: oai:DiVA.org:uu-171423DiVA: diva2:510888
Available from: 2012-03-19 Created: 2012-03-19 Last updated: 2012-03-19Bibliographically approved

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Bélanger-Champagne, CamilleBuszello, Claus P.
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