Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - A measurement of the B0s lifetime using reconstructed Ds− mesons
AU - Kartvelishvili, Vakhtang
AU - OPAL Collaboration
PY - 1998/2/3
Y1 - 1998/2/3
N2 - We report a measurement of the B0sBs0 meson lifetime from B0s→D−sXBs0→Ds−X decays, where D−sDs− mesons are reconstructed in the D−s→ϕπ−Ds−→ϕπ− and D−s→K∗0K−Ds−→K∗0K− decay channels. From approximately 3.7 million hadronic Z0Z0 decays recorded by the OPAL detector at LEP a sample is selected containing 911 ±± 83 candidates, of which 519±136519±136 are estimated to be from B0sBs0 meson decays. Fitting the distribution of the distance from the beam spot to the decay vertex of the D−sDs− candidates with an unbinned likelihood function we measure where the errors are statistical and systematic, respectively.
AB - We report a measurement of the B0sBs0 meson lifetime from B0s→D−sXBs0→Ds−X decays, where D−sDs− mesons are reconstructed in the D−s→ϕπ−Ds−→ϕπ− and D−s→K∗0K−Ds−→K∗0K− decay channels. From approximately 3.7 million hadronic Z0Z0 decays recorded by the OPAL detector at LEP a sample is selected containing 911 ±± 83 candidates, of which 519±136519±136 are estimated to be from B0sBs0 meson decays. Fitting the distribution of the distance from the beam spot to the decay vertex of the D−sDs− candidates with an unbinned likelihood function we measure where the errors are statistical and systematic, respectively.
U2 - 10.1007/s100529800839
DO - 10.1007/s100529800839
M3 - Journal article
VL - 2
SP - 407
EP - 416
JO - European Physical Journal C: Particles and Fields
JF - European Physical Journal C: Particles and Fields
SN - 1434-6044
IS - 3
ER -