TY - JOUR
T1 - A measurement of semileptonic B decays to narrow orbitally-excited charm mesons
AU - Abbiendi, G
AU - Anagnostou, Georgios
AU - Bell, Paul
AU - Bloodworth, Ian
AU - Charlton, David
AU - Hawkes, Christopher
AU - Homer, Roger
AU - Jovanovic, Predrag
AU - McMahon, Thomas
AU - O'Neale, Stephen
AU - Watson, Miriam
AU - Watkins, Peter
AU - Watson, Alan
AU - Watson, Nigel
AU - Wilson, John
PY - 2003/10/1
Y1 - 2003/10/1
N2 - The decay chain b --> (B) over bar --> D-**0 l(-) (nu) over bar X , D-**0 --> D(*+)pi(-), D*+ --> D(0)pi(+), D-0 --> (Kpi or K3pi) is identified in a sample of 3.9 million hadronic Z decays collected with the OPAL detector at LEP. The branching ratio BR (b --> (B) over bar) x BR ((B) over bar --> D-1(0) l(-) (nu) over bar X) x BR (D-1(0) --> D(*+)pi(-)) is measured to be (2.64 +/- 0.79 (stat) +/- 0.39 (syst)) x 10(-3) for the J(P)=1(+) (D-1(0)) state. For decays into the J(P)=2(+) (D-2(*0)) state, an upper limit of 1.4 x 10(-3) is placed on the branching ratio at the 95% confidence level.
AB - The decay chain b --> (B) over bar --> D-**0 l(-) (nu) over bar X , D-**0 --> D(*+)pi(-), D*+ --> D(0)pi(+), D-0 --> (Kpi or K3pi) is identified in a sample of 3.9 million hadronic Z decays collected with the OPAL detector at LEP. The branching ratio BR (b --> (B) over bar) x BR ((B) over bar --> D-1(0) l(-) (nu) over bar X) x BR (D-1(0) --> D(*+)pi(-)) is measured to be (2.64 +/- 0.79 (stat) +/- 0.39 (syst)) x 10(-3) for the J(P)=1(+) (D-1(0)) state. For decays into the J(P)=2(+) (D-2(*0)) state, an upper limit of 1.4 x 10(-3) is placed on the branching ratio at the 95% confidence level.
U2 - 10.1140/epjc/s2003-01322-2
DO - 10.1140/epjc/s2003-01322-2
M3 - Article
SN - 1434-6044
VL - 30
SP - 467
EP - 475
JO - European Physical Journal C
JF - European Physical Journal C
IS - 4
ER -