Measurement of $B^0 - \overline{B}^0$ flavor oscillations in hadronic $B^0$ decays

Aubert, Bernard; Boutigny, D.; Gaillard, J.M.; Hicheur, A.; Karyotakis, Y.; Lees, J.P.; Robbe, P.; Tisserand, V.; Palano, A.; Pompili, A.

doi:10.1103/PhysRevLett.88.221802

Measurement of $B^0 - \overline{B}^0$ flavor oscillations in hadronic $B^0$ decays

BaBar

Collaboration

Dec, 2001

7 pages

Published in:

Phys.Rev.Lett. 88 (2002) 221802

e-Print:

hep-ex/0112044 [hep-ex]

DOI:

10.1103/PhysRevLett.88.221802

PDG:

\Delta {\mathit m}_{{{\mathit B}^{0}}}

=

{\mathit m}_{{{\mathit B}_{{{H}}}^{0}}}-{\mathit m}_{{{\mathit B}_{{{L}}}^{0}}}

Report number:

SLAC-PUB-9061,
BABAR-PUB-01-02

Experiments:

SLAC-PEP2-BABAR

View in:

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Abstract: (arXiv)

Flavor oscillations of neutral

B

mesons have been studied in

e^+e^-

annihilation data collected with the BABAR detector at center-of-mass energies near the

\Upsilon(4S)

resonance. The data sample used for this purpose consists of events in which one

B^0

meson is reconstructed in a hadronic decay mode, while the flavor of the recoiling

B^0

is determined with a tagging algorithm that exploits the correlation between the flavor of the heavy quark and the charges of its decay products. From the time development of the observed mixed and unmixed final states we determine the

B^0

-

\bar B^0

oscillation frequency

\Delta m_d

to be

0.516 \pm 0.016 ({stat}) \pm 0.010 ({syst}) {\rm ps}^{-1}

.

electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production
B0 anti-B0: oscillation
B0: hadronic decay
particle identification: flavor
time dependence
B0: mass difference
BaBar

References(9)

Figures(0)

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