Dalitz plot analyses of B[superscript 0] → D[superscript −]D[superscript 0]K[superscript +] and B[superscript +] → [bar over D][superscript 0]D[superscript 0]K[superscript +] decays
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PhysRevD.91.052002.pdf
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Author(s)
Lees, J. P.
Poireau, V.
Tisserand, V.
Grauges, E.
Palano, A.
Eigen, G.
Stugu, B.
Brown, D. N.
Kerth, L. T.
Kolomensky, Yu. G.
Date Issued
March 2015
Journal
Physical Review D
Publisher
American Physical Society
Citation
Lees, J. P., et al. "Dalitz plot analyses of B[superscript 0] → D[superscript −]D[superscript 0]K[superscript +] and B[superscript +] → [bar over D][superscript 0]D[superscript 0]K[superscript +] decays." Phys. Rev. D 91, 052002 (March 2015). © 2015 American Physical Society
Version
Final published version
Abstract
We present Dalitz plot analyses for the decays of B mesons to D[superscript −]D[superscript 0]K[superscript +] and [bar over D][superscript 0]D[superscript 0]K[superscript +]. We report the observation of the D[* over s1](2700)[superscript +] resonance in these two channels and obtain measurements of the mass M(D[* over s1](2700)[superscript +]) = 2699[+14 over −7] MeV/c[superscript 2] and of the width Γ(D[* over s1](2700)[superscript +]) = 127[+24 over −19] MeV, including statistical and systematic uncertainties. In addition, we observe an enhancement in the D[superscript 0]K[superscript +] invariant mass around 2350–2500 MeV/c[superscript 2] in both decays B[superscript 0] → D[superscript −]D[superscript 0]K[superscript +] and B[superscript +] → [bar over D][superscript 0]D[superscript 0]K[superscript +], which we are not able to interpret. The results are based on 429 fb[superscript −1] of data containing 471×10[superscript 6]B[bar over B] pairs collected at the ϒ(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.91.052002
