Measurement of $B^0_{s}$ mixing parameters from the flavor-tagged decay $B^0_{s} \to J/\psi \phi$ - INSPIRE

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Measurement of $B^0_{s}$ mixing parameters from the flavor-tagged decay $B^0_{s} \to J/\psi \phi$

D0

Collaboration

Feb, 2008

7 pages

Published in:

Phys.Rev.Lett. 101 (2008) 241801

e-Print:

0802.2255 [hep-ex]

DOI:

10.1103/PhysRevLett.101.241801

PDG:

\Delta \Gamma _{{{\mathit B}_{{{s}}}^{0}}}

Report number:

FERMILAB-PUB-08-033-E

Experiments:

FNAL-E-0823

View in:

reference search403 citations

Citations per year

Abstract: (arXiv)

From an analysis of the flavor-tagged decay \bsdec we obtain the width difference between the

B_s^0

light and heavy mass eigenstates,

\Delta \Gamma_s \equiv \Gamma_L - \Gamma_H = 0.19 \pm 0.07 {\rm (stat)}\thinspace ^{+0.02}_{-0.01} {\rm (syst)}

ps

^{-1}

, and the CP-violating phase,

\phi_{s} =-0.57 ^{+0.24}_{-0.30} {\rm (stat)}\thinspace ^{+0.07}_{-0.02} {\rm (syst)}

. The allowed 90% C.L. intervals of

\Delta \Gamma_s

and

\phi_s

are

0.06 <\Delta \Gamma_s <0.30

ps

^{-1}

and

-1.20 <\phi_s < 0.06

, respectively. The data sample corresponds to an integrated luminosity of 2.8 fb

^{-1}

accumulated with the D0 detector at the Fermilab Tevatron collider.

Note:

7 pages, 2 figures

11.30.Er
13.25.Hw
anti-p p: colliding beams
anti-p p: inclusive reaction
bottom: pair production
B/s0: hadronic decay
particle identification: flavor
B/s0: lifetime
B/s0: mass difference
B/s0 anti-B/s0: oscillation

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Figures(4)

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