We present branching fraction measurements of 12 B meson decays of the form B ->(DDs(J)(*))-D-(*). The results are based on Upsilon(4S) decays in B (B) over bar pairs. One of the B mesons is fully reconstructed and the other decays to two charm mesons, of which one is reconstructed, and the mass and momentum of the other is inferred by kinematics. Combining these results with previous exclusive branching fraction measurements, we determine B(D-s(-)->phi pi(-))=(4.62 +/- 0.36(stat.)+/- 0.51(syst.))%, B(D-sJ(2460)(-)-> D-s(*-)pi(0))=(56 +/- 13(stat.)+/- 9(syst.))% and B(D-sJ(2460)(-)-> D-s(-)gamma)=(16 +/- 4(stat.)+/- 3(syst.)).
Study of B ->(DDs(J)(*))-D-(*) decays and measurement of D-s(-) and D-sJ(2460)(-) branching fractions
ANDREOTTI, Mirco;CALABRESE, Roberto;CIBINETTO, Gianluigi;LUPPI, Eleonora;NEGRINI, Matteo;PETRELLA, Antonio;PRENCIPE, Elisabetta;
2006
Abstract
We present branching fraction measurements of 12 B meson decays of the form B ->(DDs(J)(*))-D-(*). The results are based on Upsilon(4S) decays in B (B) over bar pairs. One of the B mesons is fully reconstructed and the other decays to two charm mesons, of which one is reconstructed, and the mass and momentum of the other is inferred by kinematics. Combining these results with previous exclusive branching fraction measurements, we determine B(D-s(-)->phi pi(-))=(4.62 +/- 0.36(stat.)+/- 0.51(syst.))%, B(D-sJ(2460)(-)-> D-s(*-)pi(0))=(56 +/- 13(stat.)+/- 9(syst.))% and B(D-sJ(2460)(-)-> D-s(-)gamma)=(16 +/- 4(stat.)+/- 3(syst.)).I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
