Direct Measurement of Charmed D+ and D0 Semileptonic Branching Ratios

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.; Grancagnolo, F.; Hamilton, R. P.; Hauser, J.; Heusch, C. A.; Hitlin, D. G.; Koepke, L.; Lockman, W. S.; Mockett, P. M.; Moss, L.; Mozley, R. F.; Nappi, A.; Odian, A.; Partridge, R.; Perrier, J.; Plaetzer, S. A.; Richman, J. D.; Roehrig, J. R.; Russell, J. J.; Sadrozinski, H. W.; Scarlatella, M.; Schalk, T. L.; Schindler, R. H.; Seiden, A.; Sleeman, J. C.; Spadafora, A. L.; Thaler, J. J.; Toki, W.; Tripsas, B.; Villa, F.; Wattenberg, A.; Weinstein, A. J.; Wermes, N.; Willutzki, H. J.; Wisinski, D. E.; Wisniewski, W. J.

doi:10.1103/physrevlett.54.1976

Title: Direct Measurement of Charmed D⁺ and D⁰ Semileptonic Branching Ratios

Journal Article · Mon May 06 00:00:00 EDT 1985 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.54.1976· OSTI ID:1447786

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.; Grancagnolo, F. more »

Measurements of the semileptonic branching ratios of charmed D⁺ and D⁰ mesons are presented, from data collected at the ψ(3770) in the Mark III detector at SPEAR. From a sample of events kinematically selected as charmed D⁺D^- or D⁰ D^-0 pairs, the branching ratios R(D⁺ → e⁺ + X) = (17.0 ± 1.9 ± 0.7)% and R(D⁰ → e⁺ + X) = ( 7.5 ± 1.1 ± 0.4)% are obtained. The ratio of these measurements can be interpreted as the ratio of D⁺ and D⁰ lifetimes $$\frac{τ^+}{τ^0}$$ = $$2.3^{+0.5+0.1}_{-0.4-0.1}$$ by neglect of the contribution of Cabibbo-suppressed decays to the total decay width.

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Research Organization:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Contributing Organization:: Mark III Collaboration

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1447786

Journal Information:: Physical Review Letters, Vol. 54, Issue 18; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 122 works

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References (16)

Measurements of the properties of $D$ -meson decays Schindler, R. H.; Alam, M. S.; Boyarski, A. M. Physical Review D, Vol. 24, Issue 1 https://doi.org/10.1103/PhysRevD.24.78	journal	July 1981
Semileptonic Decays on the $D$ Meson Bacino, W.; Ferguson, T.; Nodulman, L. Physical Review Letters, Vol. 43, Issue 15 https://doi.org/10.1103/PhysRevLett.43.1073	journal	October 1979
Weak non-leptonic decays beyond leading logarithms in QCD Altarelli, G.; Curci, G.; Martinelli, G. Physics Letters B, Vol. 99, Issue 2 https://doi.org/10.1016/0370-2693(81)90967-9	journal	February 1981
Soft hadron interaction effects in charmed meson decays Igarashi, Y.; Kitakado, S.; Kuroda, M. Physics Letters B, Vol. 93, Issue 1-2 https://doi.org/10.1016/0370-2693(80)90109-4	journal	June 1980
Charmed-meson lifetime ratios and production in $e^{+} - e^{-}$ collisions Pais, A.; Treiman, S. B. Physical Review D, Vol. 15, Issue 9 https://doi.org/10.1103/PhysRevD.15.2529	journal	May 1977
Weak decays of charm and quark masses Baur, U.; Fritzsch, H. Physics Letters B, Vol. 109, Issue 5 https://doi.org/10.1016/0370-2693(82)91100-5	journal	March 1982
Evidence for Unequal Lifetimes of the $D^{0}$ and $D^{+}$ Bacino, W.; Ferguson, T.; Nodulman, L. Physical Review Letters, Vol. 45, Issue 5 https://doi.org/10.1103/PhysRevLett.45.329	journal	August 1980
The properties of charmed particles Trilling, George H. Physics Reports, Vol. 75, Issue 2 https://doi.org/10.1016/0370-1573(81)90097-1	journal	September 1981
On the weak decays of high-mass hadrons Ellis, John; Gaillard, M. K.; Nanopoulos, D. V. Nuclear Physics B, Vol. 100, Issue 2 https://doi.org/10.1016/0550-3213(75)90621-5	journal	December 1975
F- and D-decays Fakirov, Dotcho; Stech, Berthold Nuclear Physics B, Vol. 133, Issue 2 https://doi.org/10.1016/0550-3213(78)90306-1	journal	February 1978
Inclusive electron spectrum in e+e− annihilation near charm threshold Ali, Ahmed; Yang, T. C. Physics Letters B, Vol. 65, Issue 3 https://doi.org/10.1016/0370-2693(76)90181-7	journal	November 1976
The Mark III spectrometer Bernstein, D.; Bernstein, J.; Bunnell, K. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 226, Issue 2-3 https://doi.org/10.1016/0168-9002(84)90043-3	journal	October 1984
D-meson lifetimes and decays Guberina, B.; Nussinov, S.; Peccei, R. D. Physics Letters B, Vol. 89, Issue 1 https://doi.org/10.1016/0370-2693(79)90086-8	journal	December 1979
Measurement of Semileptonic Decays of $D$ Mesons to Electrons at the $ψ (3772)$ Feller, J. M.; Litke, A. M.; Madaras, R. J. Physical Review Letters, Vol. 40, Issue 5 https://doi.org/10.1103/PhysRevLett.40.274	journal	January 1978
Mechanism for the Difference in Lifetimes of Charged and Neutral $D$ Mesons Bander, Myron; Silverman, D.; Soni, A. Physical Review Letters, Vol. 44, Issue 1 https://doi.org/10.1103/PhysRevLett.44.7	journal	January 1980
The puzzle of nonleptonic decays and its resolution Fritzsch, Harald; Minkowski, Peter Physics Letters B, Vol. 90, Issue 4 https://doi.org/10.1016/0370-2693(80)90973-9	journal	March 1980

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Open beauty production in high energy π−-tungsten interactions Bordalo, P.; Busson, Ph.; Kluberg, L. Zeitschrift für Physik C Particles and Fields, Vol. 39, Issue 1 https://doi.org/10.1007/bf01560385	journal	March 1988
Production ofμ − e + pairs in neutrino interactions in the SKAT bubble chamber experiment Ammosov, V. V.; Hleborad, V. I.; Ivanilov, A. A. Zeitschrift für Physik C Particles and Fields, Vol. 35, Issue 3 https://doi.org/10.1007/bf01570768	journal	September 1987
Measurement of the forward-backward asymmetry ofe + e −→Z→ $$b\bar b$$ using prompt leptons and a lifetime tag Abreu, P.; Adam, W.; Adye, T. Zeitschrift für Physik C Particles and Fields, Vol. 65, Issue 4 https://doi.org/10.1007/bf01578667	journal	December 1995
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Investigation of the total charm-pair cross section in nonresonant $e^{+}$ $e^{-}$ annihilations at √s =10.5 GeV Bowcock, T.; Kinoshita, K.; Pipkin, F. M. Physical Review D, Vol. 38, Issue 9 https://doi.org/10.1103/physrevd.38.2679	journal	November 1988
Inclusive charged- $D^{/ e m p h >}$ production in 205-GeV/ c $π^{-}$ Be interactions Mooney, P.; Sarmiento, M.; Bishop, J. M. Physical Review D, Vol. 39, Issue 9 https://doi.org/10.1103/physrevd.39.2494	journal	May 1989
Inclusive neutral- $D$ production in 205-GeV/ c $π^{-} Be$ interactions Sarmiento, M.; Mooney, P.; Bishop, J. M. Physical Review D, Vol. 45, Issue 7 https://doi.org/10.1103/physrevd.45.2244	journal	April 1992
$τ$ Leptonic Branching Ratios and a Search for Goldstone-Boson Decay Baltrusaitis, R. M.; Becker, J. J.; Blaylock, G. T. Physical Review Letters, Vol. 55, Issue 18 https://doi.org/10.1103/physrevlett.55.1842	journal	October 1985
Characteristics of Charm Production by 400-GeV Protons Duffy, M. E.; Fanourakis, G. K.; Loveless, R. J. Physical Review Letters, Vol. 57, Issue 13 https://doi.org/10.1103/physrevlett.57.1522	journal	September 1986
Comprehensive analysis of data pertaining to the weak neutral current and the intermediate-vector-boson masses Amaldi, Ugo; Böhm, Albrecht; Durkin, L. S. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2017-03426	text	January 1987

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