We present a measurement of the B(0) <-> (B) over bar(0) oscillation frequency a flavor tagging method based on correlations of B meson flavor with the charge of other particles produced in collisions at root s = 1.8 TeV. Such correlations are expected to arise from b quark hadronization and from B** decays. We partially reconstruct B mesons using the semileptonic decays B(0) --> l(+) D((*)-)X and B(+) --> l(+)(D) over bar(0)X. From the oscillation frequency, we obtain the mass difference between the two B(0) mass eigenstates, Delta m(d) = 0.471(+0.068)(+0.078)(stat) +/- 0.034(syst)(h) over bar ps(-1), and measure the efficiency and purity of this flavor tagging method for both charged and neutral B mesons.

Measurement of theB0−B¯0Oscillation Frequency Usingπ−BMeson Charge-Flavor Correlations inpp¯Collisions ats=1.8TeV

DONATI, SIMONE;PUNZI, GIOVANNI;
1998-01-01

Abstract

We present a measurement of the B(0) <-> (B) over bar(0) oscillation frequency a flavor tagging method based on correlations of B meson flavor with the charge of other particles produced in collisions at root s = 1.8 TeV. Such correlations are expected to arise from b quark hadronization and from B** decays. We partially reconstruct B mesons using the semileptonic decays B(0) --> l(+) D((*)-)X and B(+) --> l(+)(D) over bar(0)X. From the oscillation frequency, we obtain the mass difference between the two B(0) mass eigenstates, Delta m(d) = 0.471(+0.068)(+0.078)(stat) +/- 0.034(syst)(h) over bar ps(-1), and measure the efficiency and purity of this flavor tagging method for both charged and neutral B mesons.
1998
Abe, F.; Akimoto, H.; Akopian, A.; Albrow, M. G.; Amadon, A.; Amendolia, S. R.; Amidei, D.; Antos, J.; Aota, S.; Apollinari, G.; Arisawa, T.; Asakawa,...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/757161
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