First observation of the decay B0 → D* + D*-

CLEO Collaboration

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We have observed four fully reconstructed B0 → D* + D*- candidates in 5.8×106 ϒ(4S) → BB decays recorded with the CLEO detector. The background is estimated to be 0.31±0.10 events. The probability that the background could produce four or more signal candidates with the observed distribution among D*+ and D*- decay modes is 1.1 × 10-4. The measured decay rate, B(B0 → D*+D*-) = [6.2+4.0-2.9(stat) ± 1.0(syst)] × 10-4, is large enough for this decay mode to be of interest for the measurement of a time-dependent CP asymmetry.

Original languageEnglish
Pages (from-to)3020-3024
Number of pages5
JournalPhysical Review Letters
Volume82
Issue number15
DOIs
Publication statusPublished - 1999 Jan 1

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decay
decay rates
asymmetry
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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

CLEO Collaboration. / First observation of the decay B0 → D* + D*-. In: Physical Review Letters. 1999 ; Vol. 82, No. 15. pp. 3020-3024.
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title = "First observation of the decay B0 → D* + D*-",
abstract = "We have observed four fully reconstructed B0 → D* + D*- candidates in 5.8×106 ϒ(4S) → BB decays recorded with the CLEO detector. The background is estimated to be 0.31±0.10 events. The probability that the background could produce four or more signal candidates with the observed distribution among D*+ and D*- decay modes is 1.1 × 10-4. The measured decay rate, B(B0 → D*+D*-) = [6.2+4.0-2.9(stat) ± 1.0(syst)] × 10-4, is large enough for this decay mode to be of interest for the measurement of a time-dependent CP asymmetry.",
author = "{CLEO Collaboration} and M. Artuso and E. Dambasuren and S. Kopp and Moneti, {G. C.} and R. Mountain and S. Schuh and T. Skwarnicki and S. Stone and A. Titov and G. Viehhauser and Wang, {J. C.} and Csorna, {S. E.} and {Mc Lean}, {K. W.} and S. Marka and Z. Xu and R. Godang and K. Kinoshita and Lai, {I. C.} and P. Pomianowski and S. Schrenk and G. Bonvicini and D. Cinabro and R. Greene and Perera, {L. P.} and Zhou, {G. J.} and S. Chan and G. Eigen and E. Lipeles and Miller, {J. S.} and M. Schmidtler and A. Shapiro and Sun, {W. M.} and J. Urheim and Weinstein, {A. J.} and F. W{\"u}rthwein and Jaffe, {D. E.} and G. Masek and Paar, {H. P.} and Potter, {E. M.} and S. Prell and V. Sharma and Asner, {D. M.} and A. Eppich and J. Gronberg and Hill, {T. S.} and Korte, {C. M.} and Lange, {D. J.} and Morrison, {R. J.} and Nelson, {H. N.} and Nelson, {T. K.}",
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First observation of the decay B0 → D* + D*-. / CLEO Collaboration.

In: Physical Review Letters, Vol. 82, No. 15, 01.01.1999, p. 3020-3024.

Research output: Contribution to journalArticle

TY - JOUR

T1 - First observation of the decay B0 → D* + D*-

AU - CLEO Collaboration

AU - Artuso, M.

AU - Dambasuren, E.

AU - Kopp, S.

AU - Moneti, G. C.

AU - Mountain, R.

AU - Schuh, S.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Titov, A.

AU - Viehhauser, G.

AU - Wang, J. C.

AU - Csorna, S. E.

AU - Mc Lean, K. W.

AU - Marka, S.

AU - Xu, Z.

AU - Godang, R.

AU - Kinoshita, K.

AU - Lai, I. C.

AU - Pomianowski, P.

AU - Schrenk, S.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Greene, R.

AU - Perera, L. P.

AU - Zhou, G. J.

AU - Chan, S.

AU - Eigen, G.

AU - Lipeles, E.

AU - Miller, J. S.

AU - Schmidtler, M.

AU - Shapiro, A.

AU - Sun, W. M.

AU - Urheim, J.

AU - Weinstein, A. J.

AU - Würthwein, F.

AU - Jaffe, D. E.

AU - Masek, G.

AU - Paar, H. P.

AU - Potter, E. M.

AU - Prell, S.

AU - Sharma, V.

AU - Asner, D. M.

AU - Eppich, A.

AU - Gronberg, J.

AU - Hill, T. S.

AU - Korte, C. M.

AU - Lange, D. J.

AU - Morrison, R. J.

AU - Nelson, H. N.

AU - Nelson, T. K.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - We have observed four fully reconstructed B0 → D* + D*- candidates in 5.8×106 ϒ(4S) → BB decays recorded with the CLEO detector. The background is estimated to be 0.31±0.10 events. The probability that the background could produce four or more signal candidates with the observed distribution among D*+ and D*- decay modes is 1.1 × 10-4. The measured decay rate, B(B0 → D*+D*-) = [6.2+4.0-2.9(stat) ± 1.0(syst)] × 10-4, is large enough for this decay mode to be of interest for the measurement of a time-dependent CP asymmetry.

AB - We have observed four fully reconstructed B0 → D* + D*- candidates in 5.8×106 ϒ(4S) → BB decays recorded with the CLEO detector. The background is estimated to be 0.31±0.10 events. The probability that the background could produce four or more signal candidates with the observed distribution among D*+ and D*- decay modes is 1.1 × 10-4. The measured decay rate, B(B0 → D*+D*-) = [6.2+4.0-2.9(stat) ± 1.0(syst)] × 10-4, is large enough for this decay mode to be of interest for the measurement of a time-dependent CP asymmetry.

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U2 - 10.1103/PhysRevLett.82.3020

DO - 10.1103/PhysRevLett.82.3020

M3 - Article

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VL - 82

SP - 3020

EP - 3024

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 15

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