We present Dalitz plot analyses for the decays of B mesons to D−D0K+ and D¯0D0K+. We report the observation of the D∗s1(2700)+ resonance in these two channels and obtain measurements of the mass M(D∗s1(2700)+)=2699+14−7  MeV/c2 and of the width Γ(D∗s1(2700)+)=127+24−19  MeV, including statistical and systematic uncertainties. In addition, we observe an enhancement in the D0K+ invariant mass around 2350–2500  MeV/c2 in both decays B0→D−D0K+ and B+→D¯0D0K+, which we are not able to interpret. The results are based on 429  fb−1 of data containing 471×106BB¯ pairs collected at the ϒ(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory.

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2015). Dalitz plot analyses of B-0 -> (D-DK+)-K-0 and B+-> (D)over-bar(-)D(0)K(+) decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 91(5), 1-14 [10.1103/PhysRevD.91.052002].

Dalitz plot analyses of B-0 -> (D-DK+)-K-0 and B+-> (D)over-bar(-)D(0)K(+) decays

PATRIGNANI, CLAUDIA;
2015

Abstract

We present Dalitz plot analyses for the decays of B mesons to D−D0K+ and D¯0D0K+. We report the observation of the D∗s1(2700)+ resonance in these two channels and obtain measurements of the mass M(D∗s1(2700)+)=2699+14−7  MeV/c2 and of the width Γ(D∗s1(2700)+)=127+24−19  MeV, including statistical and systematic uncertainties. In addition, we observe an enhancement in the D0K+ invariant mass around 2350–2500  MeV/c2 in both decays B0→D−D0K+ and B+→D¯0D0K+, which we are not able to interpret. The results are based on 429  fb−1 of data containing 471×106BB¯ pairs collected at the ϒ(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory.
2015
Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2015). Dalitz plot analyses of B-0 -> (D-DK+)-K-0 and B+-> (D)over-bar(-)D(0)K(+) decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 91(5), 1-14 [10.1103/PhysRevD.91.052002].
Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lee, M. J.; Ly...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/534815
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