Measurement of D0 lifetime in e+e- annihilation at high energy

H. Yamamoto; W. B. Atwood; P. H. Baillon; B. C. Barish; G. R. Bonneaud; A. Courau; G. J. Donaldson; R. Dubois; M. M. Duro; E. E. Elsen; S. G. Gao; Y. Z. Huang; G. M. Irwin; R. Johnson; H. Kichimi; J. Kirkby; D. E. Klem; D. E. Koop; J. Ludwig; G. B. Mills; A. Ogawa; T. Pal; D. Perret-Gallix; R. Pitthan; D. L. Pollard; C. Y. Prescott; L. Z. Rivkin; L. S. Rochester; W. Ruckstuhl; M. Sakuda; S. Sherman; E. J. Siskind; R. Stroynowski; S. Q. Wang; S. G. Wojcicki; W. G. Yan; C. C. Young

doi:10.1103/PhysRevD.32.2901

Measurement of D0 lifetime in e+e- annihilation at high energy

H. Yamamoto, W. B. Atwood, P. H. Baillon, B. C. Barish, G. R. Bonneaud, A. Courau, G. J. Donaldson, R. Dubois, M. M. Duro, E. E. Elsen, S. G. Gao, Y. Z. Huang, G. M. Irwin, R. Johnson, H. Kichimi, J. Kirkby, D. E. Klem, D. E. Koop, J. Ludwig, G. B. MillsA. Ogawa, T. Pal, D. Perret-Gallix, R. Pitthan, D. L. Pollard, C. Y. Prescott, L. Z. Rivkin, L. S. Rochester, W. Ruckstuhl, M. Sakuda, S. Sherman, E. J. Siskind, R. Stroynowski, S. Q. Wang, S. G. Wojcicki, W. G. Yan, C. C. Young

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Abstract

A measurement of the D0 lifetime using the impact-parameter method is presented. The D0 sample is obtained from identified D* decays in e+e- annihilations into hadrons at center-of-mass energy of 29 GeV. The maximum-likelihood method used is found to be insensitive to the specific choice of cuts and uncertainties in backgrounds, giving the D0 lifetime of [4.61.5 (statistical)-0.5+0.6(systematic)]× 10-13 sec. The consistency and bias of the method are checked. Combining the measurement with the semileptonic branching ratio of D0, we estimate the semileptonic decay rate of D0 to be (1.60.6)×1011 sec-1. The corresponding value of the effective charm-quark mass is found to be consistent with the typical constituent mass of charm quark.

Original language	English
Pages (from-to)	2901-2910
Number of pages	10
Journal	Physical Review D
Volume	32
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.32.2901
Publication status	Published - 1985
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.32.2901

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Yamamoto, H., Atwood, W. B., Baillon, P. H., Barish, B. C., Bonneaud, G. R., Courau, A., Donaldson, G. J., Dubois, R., Duro, M. M., Elsen, E. E., Gao, S. G., Huang, Y. Z., Irwin, G. M., Johnson, R., Kichimi, H., Kirkby, J., Klem, D. E., Koop, D. E., Ludwig, J., ... Young, C. C. (1985). Measurement of D0 lifetime in e+e- annihilation at high energy. Physical Review D, 32(11), 2901-2910. https://doi.org/10.1103/PhysRevD.32.2901

Yamamoto, H, Atwood, WB, Baillon, PH, Barish, BC, Bonneaud, GR, Courau, A, Donaldson, GJ, Dubois, R, Duro, MM, Elsen, EE, Gao, SG, Huang, YZ, Irwin, GM, Johnson, R, Kichimi, H, Kirkby, J, Klem, DE, Koop, DE, Ludwig, J, Mills, GB, Ogawa, A, Pal, T, Perret-Gallix, D, Pitthan, R, Pollard, DL, Prescott, CY, Rivkin, LZ, Rochester, LS, Ruckstuhl, W, Sakuda, M, Sherman, S, Siskind, EJ, Stroynowski, R, Wang, SQ, Wojcicki, SG, Yan, WG & Young, CC 1985, 'Measurement of D0 lifetime in e+e- annihilation at high energy', Physical Review D, vol. 32, no. 11, pp. 2901-2910. https://doi.org/10.1103/PhysRevD.32.2901

@article{2a24da517a394301800b0e350de3902f,

title = "Measurement of D0 lifetime in e+e- annihilation at high energy",

abstract = "A measurement of the D0 lifetime using the impact-parameter method is presented. The D0 sample is obtained from identified D* decays in e+e- annihilations into hadrons at center-of-mass energy of 29 GeV. The maximum-likelihood method used is found to be insensitive to the specific choice of cuts and uncertainties in backgrounds, giving the D0 lifetime of [4.61.5 (statistical)-0.5+0.6(systematic)]× 10-13 sec. The consistency and bias of the method are checked. Combining the measurement with the semileptonic branching ratio of D0, we estimate the semileptonic decay rate of D0 to be (1.60.6)×1011 sec-1. The corresponding value of the effective charm-quark mass is found to be consistent with the typical constituent mass of charm quark.",

author = "H. Yamamoto and Atwood, {W. B.} and Baillon, {P. H.} and Barish, {B. C.} and Bonneaud, {G. R.} and A. Courau and Donaldson, {G. J.} and R. Dubois and Duro, {M. M.} and Elsen, {E. E.} and Gao, {S. G.} and Huang, {Y. Z.} and Irwin, {G. M.} and R. Johnson and H. Kichimi and J. Kirkby and Klem, {D. E.} and Koop, {D. E.} and J. Ludwig and Mills, {G. B.} and A. Ogawa and T. Pal and D. Perret-Gallix and R. Pitthan and Pollard, {D. L.} and Prescott, {C. Y.} and Rivkin, {L. Z.} and Rochester, {L. S.} and W. Ruckstuhl and M. Sakuda and S. Sherman and Siskind, {E. J.} and R. Stroynowski and Wang, {S. Q.} and Wojcicki, {S. G.} and Yan, {W. G.} and Young, {C. C.}",

year = "1985",

doi = "10.1103/PhysRevD.32.2901",

language = "English",

volume = "32",

pages = "2901--2910",

journal = "Physical review D: Particles and fields",

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T1 - Measurement of D0 lifetime in e+e- annihilation at high energy

AU - Yamamoto, H.

AU - Atwood, W. B.

AU - Baillon, P. H.

AU - Barish, B. C.

AU - Bonneaud, G. R.

AU - Courau, A.

AU - Donaldson, G. J.

AU - Dubois, R.

AU - Duro, M. M.

AU - Elsen, E. E.

AU - Gao, S. G.

AU - Huang, Y. Z.

AU - Irwin, G. M.

AU - Johnson, R.

AU - Kichimi, H.

AU - Kirkby, J.

AU - Klem, D. E.

AU - Koop, D. E.

AU - Ludwig, J.

AU - Mills, G. B.

AU - Ogawa, A.

AU - Pal, T.

AU - Perret-Gallix, D.

AU - Pitthan, R.

AU - Pollard, D. L.

AU - Prescott, C. Y.

AU - Rivkin, L. Z.

AU - Rochester, L. S.

AU - Ruckstuhl, W.

AU - Sakuda, M.

AU - Sherman, S.

AU - Siskind, E. J.

AU - Stroynowski, R.

AU - Wang, S. Q.

AU - Wojcicki, S. G.

AU - Yan, W. G.

AU - Young, C. C.

PY - 1985

Y1 - 1985

N2 - A measurement of the D0 lifetime using the impact-parameter method is presented. The D0 sample is obtained from identified D* decays in e+e- annihilations into hadrons at center-of-mass energy of 29 GeV. The maximum-likelihood method used is found to be insensitive to the specific choice of cuts and uncertainties in backgrounds, giving the D0 lifetime of [4.61.5 (statistical)-0.5+0.6(systematic)]× 10-13 sec. The consistency and bias of the method are checked. Combining the measurement with the semileptonic branching ratio of D0, we estimate the semileptonic decay rate of D0 to be (1.60.6)×1011 sec-1. The corresponding value of the effective charm-quark mass is found to be consistent with the typical constituent mass of charm quark.

AB - A measurement of the D0 lifetime using the impact-parameter method is presented. The D0 sample is obtained from identified D* decays in e+e- annihilations into hadrons at center-of-mass energy of 29 GeV. The maximum-likelihood method used is found to be insensitive to the specific choice of cuts and uncertainties in backgrounds, giving the D0 lifetime of [4.61.5 (statistical)-0.5+0.6(systematic)]× 10-13 sec. The consistency and bias of the method are checked. Combining the measurement with the semileptonic branching ratio of D0, we estimate the semileptonic decay rate of D0 to be (1.60.6)×1011 sec-1. The corresponding value of the effective charm-quark mass is found to be consistent with the typical constituent mass of charm quark.

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DO - 10.1103/PhysRevD.32.2901

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SN - 0556-2821

VL - 32

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EP - 2910

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

IS - 11

ER -

Measurement of D0 lifetime in e+e- annihilation at high energy

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