First measurement of Γ(D*+)

CLEO Collaboration

doi:10.1103/PhysRevLett.87.251801

First measurement of Γ(D*⁺)

CLEO Collaboration

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

Abstract

We present the first measurement of the D*⁺ width using 9/fb of e⁺e⁻ data collected near the γ(4S) resonance by the CLEO II.V detector. Our method uses advanced tracking techniques and a reconstruction method that takes advantage of the small vertical size of the Cornell Electron-positron Storage Ring beam spot to measure the energy release distribution from the D*⁺ → D⁰π⁺ decay. We find Γ(D*⁺) = 96 ±4(stat) ± 22(syst)keV. We also measure the energy release in the decay and compute Δm = m_D*⁺ − m_D⁰ = 145.412 ± 0.002(stat) ± 0.012(syst)MeV/c².

Original language	English (US)
Pages (from-to)	251801-1-251801-5
Journal	Physical review letters
Volume	87
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.87.251801
State	Published - Dec 17 2001
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

Online availability

10.1103/PhysRevLett.87.251801

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Cite this

@article{43caf166ed604aefaa8bd72675aecd11,

title = "First measurement of Γ(D*+)",

abstract = "We present the first measurement of the D*+ width using 9/fb of e+e− data collected near the γ(4S) resonance by the CLEO II.V detector. Our method uses advanced tracking techniques and a reconstruction method that takes advantage of the small vertical size of the Cornell Electron-positron Storage Ring beam spot to measure the energy release distribution from the D*+ → D0π+ decay. We find Γ(D*+) = 96 ±4(stat) ± 22(syst)keV. We also measure the energy release in the decay and compute Δm = mD*+ − mD0 = 145.412 ± 0.002(stat) ± 0.012(syst)MeV/c2.",

author = "\{CLEO Collaboration\} and S. Ahmed and Alam, \{M. S.\} and Athar, \{S. B.\} and L. Jian and L. Ling and M. Saleem and S. Timm and F. Wappler and A. Anastassov and E. Eckhart and Gan, \{K. K.\} and C. Gwon and T. Hart and K. Honscheid and D. Hufnagel and H. Kagan and R. Kass and Pedlar, \{T. K.\} and Thayer, \{J. B.\} and \{von Toerne\}, E. and Zoeller, \{M. M.\} and Richichi, \{S. J.\} and H. Severini and P. Skubic and A. Undrus and V. Savinov and S. Chen and Hinson, \{J. W.\} and J. Lee and Miller, \{D. H.\} and Shibata, \{E. I.\} and Shipsey, \{I. P.J.\} and V. Pavlunin and D. Cronin-Hennessy and Lyon, \{A. L.\} and W. Park and Thorndike, \{E. H.\} and Coan, \{T. E.\} and Gao, \{Y. S.\} and Y. Maravin and I. Narsky and R. Stroynowski and J. Ye and T. Wlodek and M. Artuso and K. Benslama and C. Boulahouache and K. Bukin and Gollin, \{G. D.\} and M. Selen",

year = "2001",

month = dec,

day = "17",

doi = "10.1103/PhysRevLett.87.251801",

language = "English (US)",

volume = "87",

pages = "251801--1--251801--5",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "25",

}

TY - JOUR

T1 - First measurement of Γ(D*+)

AU - CLEO Collaboration

AU - Ahmed, S.

AU - Alam, M. S.

AU - Athar, S. B.

AU - Jian, L.

AU - Ling, L.

AU - Saleem, M.

AU - Timm, S.

AU - Wappler, F.

AU - Anastassov, A.

AU - Eckhart, E.

AU - Gan, K. K.

AU - Gwon, C.

AU - Hart, T.

AU - Honscheid, K.

AU - Hufnagel, D.

AU - Kagan, H.

AU - Kass, R.

AU - Pedlar, T. K.

AU - Thayer, J. B.

AU - von Toerne, E.

AU - Zoeller, M. M.

AU - Richichi, S. J.

AU - Severini, H.

AU - Skubic, P.

AU - Undrus, A.

AU - Savinov, V.

AU - Chen, S.

AU - Hinson, J. W.

AU - Lee, J.

AU - Miller, D. H.

AU - Shibata, E. I.

AU - Shipsey, I. P.J.

AU - Pavlunin, V.

AU - Cronin-Hennessy, D.

AU - Lyon, A. L.

AU - Park, W.

AU - Thorndike, E. H.

AU - Coan, T. E.

AU - Gao, Y. S.

AU - Maravin, Y.

AU - Narsky, I.

AU - Stroynowski, R.

AU - Ye, J.

AU - Wlodek, T.

AU - Artuso, M.

AU - Benslama, K.

AU - Boulahouache, C.

AU - Bukin, K.

AU - Gollin, G. D.

AU - Selen, M.

PY - 2001/12/17

Y1 - 2001/12/17

N2 - We present the first measurement of the D*+ width using 9/fb of e+e− data collected near the γ(4S) resonance by the CLEO II.V detector. Our method uses advanced tracking techniques and a reconstruction method that takes advantage of the small vertical size of the Cornell Electron-positron Storage Ring beam spot to measure the energy release distribution from the D*+ → D0π+ decay. We find Γ(D*+) = 96 ±4(stat) ± 22(syst)keV. We also measure the energy release in the decay and compute Δm = mD*+ − mD0 = 145.412 ± 0.002(stat) ± 0.012(syst)MeV/c2.

AB - We present the first measurement of the D*+ width using 9/fb of e+e− data collected near the γ(4S) resonance by the CLEO II.V detector. Our method uses advanced tracking techniques and a reconstruction method that takes advantage of the small vertical size of the Cornell Electron-positron Storage Ring beam spot to measure the energy release distribution from the D*+ → D0π+ decay. We find Γ(D*+) = 96 ±4(stat) ± 22(syst)keV. We also measure the energy release in the decay and compute Δm = mD*+ − mD0 = 145.412 ± 0.002(stat) ± 0.012(syst)MeV/c2.

UR - https://www.scopus.com/pages/publications/85037196985

UR - https://www.scopus.com/pages/publications/85037196985#tab=citedBy

U2 - 10.1103/PhysRevLett.87.251801

DO - 10.1103/PhysRevLett.87.251801

M3 - Article

C2 - 11736560

AN - SCOPUS:85037196985

SN - 0031-9007

VL - 87

SP - 251801-1-251801-5

JO - Physical review letters

JF - Physical review letters

IS - 25

ER -