Direct measurement of charmed D+ and D0 semileptonic branching ratios

R. M. Baltrusaitis; J. J. Becker; G. T. Blaylock; J. S. Brown; K. O. Bunnell; T. H. Burnett; R. E. Cassell; D. Coffman; V. Cook; D. H. Coward; S. Dado; C. Del Papa; D. E. Dorfan; G. P. Dubois; A. L. Duncan; K. F. Einsweiler; B. I. Eisenstein; R. Fabrizio; G. Gladding; F. Grancagnolo; R. P. Hamilton; J. Hauser; C. A. Heusch; D. G. Hitlin; L. Koepke; W. S. Lockman; P. M. Mockett; L. Moss; R. F. Mozley; A. Nappi; A. Odian; R. Partridge; J. Perrier; S. A. Plaetzer; J. D. Richman; J. R. Roehrig; J. J. Russell; H. F.W. Sadrozinski; M. Scarlatella; T. L. Schalk; R. H. Schindler; A. Seiden; J. C. Sleeman; A. L. Spadafora; J. J. Thaler; W. Toki; B. Tripsas; F. Villa; A. Wattenberg; A. J. Weinstein; N. Wermes; H. J. Willutzki; D. E. Wisinski; W. J. Wisniewski

doi:10.1103/PhysRevLett.54.1976

Direct measurement of charmed D+ and D0 semileptonic branching ratios

R. M. Baltrusaitis, J. J. Becker, G. T. Blaylock, J. S. Brown, K. O. Bunnell, T. H. Burnett, R. E. Cassell, D. Coffman, V. Cook, D. H. Coward, S. Dado, C. Del Papa, D. E. Dorfan, G. P. Dubois, A. L. Duncan, K. F. Einsweiler, B. I. Eisenstein, R. Fabrizio, G. Gladding, F. GrancagnoloR. P. Hamilton, J. Hauser, C. A. Heusch, D. G. Hitlin, L. Koepke, W. S. Lockman, P. M. Mockett, L. Moss, R. F. Mozley, A. Nappi, A. Odian, R. Partridge, J. Perrier, S. A. Plaetzer, J. D. Richman, J. R. Roehrig, J. J. Russell, H. F.W. Sadrozinski, M. Scarlatella, T. L. Schalk, R. H. Schindler, A. Seiden, J. C. Sleeman, A. L. Spadafora, J. J. Thaler, W. Toki, B. Tripsas, F. Villa, A. Wattenberg, A. J. Weinstein, N. Wermes, H. J. Willutzki, D. E. Wisinski, W. J. Wisniewski

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Abstract

Measurements of the semileptonic branching ratios of charmed D+ and D0 mesons are presented, from data collected at the (3770) in the Mark III detector at SPEAR. From a sample of events kinematically selected as charmed D+D- or D0D0 pairs, the branching ratios R(D+e++X)=(17.01.90.7)% and R(D0e++X)=(7.51.10.4)% are obtained. The ratio of these measurements can be interpreted as the ratio of D+ and D0 lifetimes +0=2.3-0.4-0.1+0.5+0.1 by neglect of the contribution of Cabibbo-suppressed decays to the total decay width.

Original language	English (US)
Pages (from-to)	1976-1979
Number of pages	4
Journal	Physical review letters
Volume	54
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.54.1976
State	Published - 1985
Externally published	Yes

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Physics and Astronomy(all)

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10.1103/PhysRevLett.54.1976

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Baltrusaitis, R. M., Becker, J. J., Blaylock, G. T., Brown, J. S., Bunnell, K. O., Burnett, T. H., Cassell, R. E., Coffman, D., Cook, V., Coward, D. H., Dado, S., Del Papa, C., Dorfan, D. E., Dubois, G. P., Duncan, A. L., Einsweiler, K. F., Eisenstein, B. I., Fabrizio, R., Gladding, G., ... Wisniewski, W. J. (1985). Direct measurement of charmed D+ and D0 semileptonic branching ratios. Physical review letters, 54(18), 1976-1979. https://doi.org/10.1103/PhysRevLett.54.1976

Baltrusaitis, RM, Becker, JJ, Blaylock, GT, Brown, JS, Bunnell, KO, Burnett, TH, Cassell, RE, Coffman, D, Cook, V, Coward, DH, Dado, S, Del Papa, C, Dorfan, DE, Dubois, GP, Duncan, AL, Einsweiler, KF, Eisenstein, BI, Fabrizio, R, Gladding, G, Grancagnolo, F, Hamilton, RP, Hauser, J, Heusch, CA, Hitlin, DG, Koepke, L, Lockman, WS, Mockett, PM, Moss, L, Mozley, RF, Nappi, A, Odian, A, Partridge, R, Perrier, J, Plaetzer, SA, Richman, JD, Roehrig, JR, Russell, JJ, Sadrozinski, HFW, Scarlatella, M, Schalk, TL, Schindler, RH, Seiden, A, Sleeman, JC, Spadafora, AL, Thaler, JJ, Toki, W, Tripsas, B, Villa, F, Wattenberg, A, Weinstein, AJ, Wermes, N, Willutzki, HJ, Wisinski, DE & Wisniewski, WJ 1985, 'Direct measurement of charmed D+ and D0 semileptonic branching ratios', Physical review letters, vol. 54, no. 18, pp. 1976-1979. https://doi.org/10.1103/PhysRevLett.54.1976

@article{9624086a73a84d588247181be5e2a278,

title = "Direct measurement of charmed D+ and D0 semileptonic branching ratios",

abstract = "Measurements of the semileptonic branching ratios of charmed D+ and D0 mesons are presented, from data collected at the (3770) in the Mark III detector at SPEAR. From a sample of events kinematically selected as charmed D+D- or D0D0 pairs, the branching ratios R(D+e++X)=(17.01.90.7)% and R(D0e++X)=(7.51.10.4)% are obtained. The ratio of these measurements can be interpreted as the ratio of D+ and D0 lifetimes +0=2.3-0.4-0.1+0.5+0.1 by neglect of the contribution of Cabibbo-suppressed decays to the total decay width.",

author = "Baltrusaitis, {R. M.} and Becker, {J. J.} and Blaylock, {G. T.} and Brown, {J. S.} and Bunnell, {K. O.} and Burnett, {T. H.} and Cassell, {R. E.} and D. Coffman and V. Cook and Coward, {D. H.} and S. Dado and {Del Papa}, C. and Dorfan, {D. E.} and Dubois, {G. P.} and Duncan, {A. L.} and Einsweiler, {K. F.} and Eisenstein, {B. I.} and R. Fabrizio and G. Gladding and F. Grancagnolo and Hamilton, {R. P.} and J. Hauser and Heusch, {C. A.} and Hitlin, {D. G.} and L. Koepke and Lockman, {W. S.} and Mockett, {P. M.} and L. Moss and Mozley, {R. F.} and A. Nappi and A. Odian and R. Partridge and J. Perrier and Plaetzer, {S. A.} and Richman, {J. D.} and Roehrig, {J. R.} and Russell, {J. J.} and Sadrozinski, {H. F.W.} and M. Scarlatella and Schalk, {T. L.} and Schindler, {R. H.} and A. Seiden and Sleeman, {J. C.} and Spadafora, {A. L.} and Thaler, {J. J.} and W. Toki and B. Tripsas and F. Villa and A. Wattenberg and Weinstein, {A. J.} and N. Wermes and Willutzki, {H. J.} and Wisinski, {D. E.} and Wisniewski, {W. J.}",

year = "1985",

doi = "10.1103/PhysRevLett.54.1976",

language = "English (US)",

volume = "54",

pages = "1976--1979",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - Direct measurement of charmed D+ and D0 semileptonic branching ratios

AU - Baltrusaitis, R. M.

AU - Becker, J. J.

AU - Blaylock, G. T.

AU - Brown, J. S.

AU - Bunnell, K. O.

AU - Burnett, T. H.

AU - Cassell, R. E.

AU - Coffman, D.

AU - Cook, V.

AU - Coward, D. H.

AU - Dado, S.

AU - Del Papa, C.

AU - Dorfan, D. E.

AU - Dubois, G. P.

AU - Duncan, A. L.

AU - Einsweiler, K. F.

AU - Eisenstein, B. I.

AU - Fabrizio, R.

AU - Gladding, G.

AU - Grancagnolo, F.

AU - Hamilton, R. P.

AU - Hauser, J.

AU - Heusch, C. A.

AU - Hitlin, D. G.

AU - Koepke, L.

AU - Lockman, W. S.

AU - Mockett, P. M.

AU - Moss, L.

AU - Mozley, R. F.

AU - Nappi, A.

AU - Odian, A.

AU - Partridge, R.

AU - Perrier, J.

AU - Plaetzer, S. A.

AU - Richman, J. D.

AU - Roehrig, J. R.

AU - Russell, J. J.

AU - Sadrozinski, H. F.W.

AU - Scarlatella, M.

AU - Schalk, T. L.

AU - Schindler, R. H.

AU - Seiden, A.

AU - Sleeman, J. C.

AU - Spadafora, A. L.

AU - Thaler, J. J.

AU - Toki, W.

AU - Tripsas, B.

AU - Villa, F.

AU - Wattenberg, A.

AU - Weinstein, A. J.

AU - Wermes, N.

AU - Willutzki, H. J.

AU - Wisinski, D. E.

AU - Wisniewski, W. J.

PY - 1985

Y1 - 1985

N2 - Measurements of the semileptonic branching ratios of charmed D+ and D0 mesons are presented, from data collected at the (3770) in the Mark III detector at SPEAR. From a sample of events kinematically selected as charmed D+D- or D0D0 pairs, the branching ratios R(D+e++X)=(17.01.90.7)% and R(D0e++X)=(7.51.10.4)% are obtained. The ratio of these measurements can be interpreted as the ratio of D+ and D0 lifetimes +0=2.3-0.4-0.1+0.5+0.1 by neglect of the contribution of Cabibbo-suppressed decays to the total decay width.

AB - Measurements of the semileptonic branching ratios of charmed D+ and D0 mesons are presented, from data collected at the (3770) in the Mark III detector at SPEAR. From a sample of events kinematically selected as charmed D+D- or D0D0 pairs, the branching ratios R(D+e++X)=(17.01.90.7)% and R(D0e++X)=(7.51.10.4)% are obtained. The ratio of these measurements can be interpreted as the ratio of D+ and D0 lifetimes +0=2.3-0.4-0.1+0.5+0.1 by neglect of the contribution of Cabibbo-suppressed decays to the total decay width.

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U2 - 10.1103/PhysRevLett.54.1976

DO - 10.1103/PhysRevLett.54.1976

M3 - Article

C2 - 10031191

AN - SCOPUS:4243736763

SN - 0031-9007

VL - 54

SP - 1976

EP - 1979

JO - Physical review letters

JF - Physical review letters

IS - 18

ER -

Direct measurement of charmed D+ and D0 semileptonic branching ratios

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