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

CLEO Collaboration

doi:10.1103/PhysRevLett.82.3020

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

CLEO Collaboration

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

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 language	English (US)
Pages (from-to)	3020-3024
Number of pages	5
Journal	Physical review letters
Volume	82
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.82.3020
State	Published - 1999
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.82.3020

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@article{81a1cc60e246406e8e92651ca16dd7af,

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.\}",

year = "1999",

doi = "10.1103/PhysRevLett.82.3020",

language = "English (US)",

volume = "82",

pages = "3020--3024",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "15",

}

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

Y1 - 1999

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.

UR - https://www.scopus.com/pages/publications/4243721412

UR - https://www.scopus.com/pages/publications/4243721412#tab=citedBy

U2 - 10.1103/PhysRevLett.82.3020

DO - 10.1103/PhysRevLett.82.3020

M3 - Article

AN - SCOPUS:4243721412

SN - 0031-9007

VL - 82

SP - 3020

EP - 3024

JO - Physical review letters

JF - Physical review letters

IS - 15

ER -

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

Abstract

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