Improved measurement of the pseudoscalar decay constant fDs

M. Chada; S. Chan; G. Eigen; J. S. Miller; C. O'Grady; M. Schmidtler; J. Urheim; A. J. Weinstein; F. Würthwein; D. W. Bliss; G. Masek; H. P. Paar; S. Prell; V. Sharma; D. M. Asner; J. Gronberg; T. S. Hill; D. J. Lange; R. J. Morrison; H. N. Nelson; T. K. Nelson; D. Roberts; A. Ryd; R. Balest; B. H. Behrens; W. T. Ford; H. Park; J. Roy; J. G. Smith; J. P. Alexander; R. Baker; C. Bebek; B. E. Berger; K. Berkelman; K. Bloom; V. Boisvert; D. G. Cassel; D. S. Crowcroft; M. Dickson; S. von Dombrowski; P. S. Drell; K. M. Ecklünd; R. Ehrlich; A. D. Foland; P. Gaidarev; L. Gibbons; B. Gittelman; S. W. Gray; D. L. Hartill; B. K. Heltsley; P. I. Hopman; J. Kandaswamy; P. C. Kim; D. L. Kreinick; T. Lee; Y. Liu; N. B. Mistry; C. R. Ng; E. Nordberg; M. Ogg; J. R. Patterson; D. Peterson; D. Riley; A. Soffer; B. Valant-Spaight; C. Ward; M. Athanas; P. Avery; C. D. Jones; M. Lohner; S. Patton; C. Prescott; J. Yelton; J. Zheng; G. Brandenburg; R. A. Briere; A. Ershov; Y. S. Gao; D. Y.J. Kim; R. Wilson; H. Yamamoto; T. E. Browder; Y. Li; J. L. Rodriguez; T. Bergfeld; B. I. Eisenstein; J. Ernst; G. E. Gladding; G. D. Gollin; R. M. Hans; E. Johnson; I. Karliner; M. A. Marsh; M. Palmer; M. Selen; J. J. Thaler; K. W. Edwards; A. Bellerive; R. Janicek; D. B. MacFarlane; P. M. Patel; A. J. Sadoff; R. Ammar; P. Baringer; A. Bean; D. Besson; D. Coppage; C. Darling; R. Davis; S. Kotov; I. Kravchenko; N. Kwak; L. Zhou; S. Anderson; Y. Kubota; S. J. Lee; J. J. O'Neill; R. Poling; T. Riehle; A. Smith; M. S. Alam; S. B. Athar; Z. Ling; A. H. Mahmood; S. Timm; F. Wappler; A. Anastassov; J. E. Duboscq; D. Fujino; K. K. Gan; T. Hart; K. Honscheid; H. Kagan; R. Kass; J. Lee; M. B. Spencer; M. Sung; A. Undrus; A. Wolf; M. M. Zoeller; B. Nemati; S. J. Richichi; W. R. Ross; H. Severini; P. Skubic; M. Bishai; J. Fast; J. W. Hinson; N. Menon; D. H. Miller; E. I. Shibata; I. P.J. Shipsey; M. Yurko; S. Glenn; S. D. Johnson; Y. Kwon; S. Roberts; E. H. Thorndike; C. P. Jessop; K. Lingel; H. Marsiske; M. L. Perl; V. Savinov; D. Ugolini; R. Wang; X. Zhou; T. E. Coan; V. Fadeyev; I. Korolkov; Y. Maravin; I. Narsky; V. Shelkov; J. Staeck; R. Stroynowski; I. Volobouev; J. Ye; M. Artuso; F. Azfar; A. Efimov; M. Goldberg; D. He; S. Kopp; G. C. Moneti; R. Moüntain; S. Schüh; T. Skwarnicki; S. Stone; G. Viehhauser; X. Xing; J. Bartelt; S. E. Csorna; V. Jain; K. W. McLean; S. Marka; R. Godang; K. Kinoshita; I. C. Lai; P. Pomianowski; S. Schrenk; G. Bonvicini; D. Cinabro; R. Greene; L. P. Perera; G. J. Zhou

doi:10.1103/PhysRevD.58.032002

Improved measurement of the pseudoscalar decay constant f_Ds

M. Chada, S. Chan, G. Eigen, J. S. Miller, C. O'Grady, M. Schmidtler, J. Urheim, A. J. Weinstein, F. Würthwein, D. W. Bliss, G. Masek, H. P. Paar, S. Prell, V. Sharma, D. M. Asner, J. Gronberg, T. S. Hill, D. J. Lange, R. J. Morrison, H. N. NelsonT. K. Nelson, D. Roberts, A. Ryd, R. Balest, B. H. Behrens, W. T. Ford, H. Park, J. Roy, J. G. Smith, J. P. Alexander, R. Baker, C. Bebek, B. E. Berger, K. Berkelman, K. Bloom, V. Boisvert, D. G. Cassel, D. S. Crowcroft, M. Dickson, S. von Dombrowski, P. S. Drell, K. M. Ecklünd, R. Ehrlich, A. D. Foland, P. Gaidarev, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, J. Kandaswamy, P. C. Kim, D. L. Kreinick, T. Lee, Y. Liu, N. B. Mistry, C. R. Ng, E. Nordberg, M. Ogg, J. R. Patterson, D. Peterson, D. Riley, A. Soffer, B. Valant-Spaight, C. Ward, M. Athanas, P. Avery, C. D. Jones, M. Lohner, S. Patton, C. Prescott, J. Yelton, J. Zheng, G. Brandenburg, R. A. Briere, A. Ershov, Y. S. Gao, D. Y.J. Kim, R. Wilson, H. Yamamoto, T. E. Browder, Y. Li, J. L. Rodriguez, T. Bergfeld, B. I. Eisenstein, J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans, E. Johnson, I. Karliner, M. A. Marsh, M. Palmer, M. Selen, J. J. Thaler, K. W. Edwards, A. Bellerive, R. Janicek, D. B. MacFarlane, P. M. Patel, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, C. Darling, R. Davis, S. Kotov, I. Kravchenko, N. Kwak, L. Zhou, S. Anderson, Y. Kubota, S. J. Lee, J. J. O'Neill, R. Poling, T. Riehle, A. Smith, M. S. Alam, S. B. Athar, Z. Ling, A. H. Mahmood, S. Timm, F. Wappler, A. Anastassov, J. E. Duboscq, D. Fujino, K. K. Gan, T. Hart, K. Honscheid, H. Kagan, R. Kass, J. Lee, M. B. Spencer, M. Sung, A. Undrus, A. Wolf, M. M. Zoeller, B. Nemati, S. J. Richichi, W. R. Ross, H. Severini, P. Skubic, M. Bishai, J. Fast, J. W. Hinson, N. Menon, D. H. Miller, E. I. Shibata, I. P.J. Shipsey, M. Yurko, S. Glenn, S. D. Johnson, Y. Kwon, S. Roberts, E. H. Thorndike, C. P. Jessop, K. Lingel, H. Marsiske, M. L. Perl, V. Savinov, D. Ugolini, R. Wang, X. Zhou, T. E. Coan, V. Fadeyev, I. Korolkov, Y. Maravin, I. Narsky, V. Shelkov, J. Staeck, R. Stroynowski, I. Volobouev, J. Ye, M. Artuso, F. Azfar, A. Efimov, M. Goldberg, D. He, S. Kopp, G. C. Moneti, R. Moüntain, S. Schüh, T. Skwarnicki, S. Stone, G. Viehhauser, X. Xing, J. Bartelt, S. E. Csorna, V. Jain, K. W. McLean, S. Marka, R. Godang, K. Kinoshita, I. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, R. Greene, L. P. Perera, G. J. Zhou

Department of Physics

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

53 Citations (Scopus)

Abstract

We present a new determination of f^Ds using 5 million e⁺e^-→cc̄ events obtained with the CLEO II detector. Our value is derived from our new measured ratio Γ(D⁺_s → μ⁺ν)/Δ(D⁺_s → φπ⁺) = 0.173 ± 0.023 ± 0.035. Using ß(D^+s → φπ⁺) = (3.6 ± 0.9)%, we extract f_Ds = (280 ± 19 ± 28 ± 34) MeV. We compare this result with various model calculations.

Original language	English
Article number	032002
Pages (from-to)	320021-3200210
Number of pages	2880190
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	58
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.58.032002
Publication status	Published - 1998 Aug 1

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1103/PhysRevD.58.032002

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Chada, M., Chan, S., Eigen, G., Miller, J. S., O'Grady, C., Schmidtler, M., Urheim, J., Weinstein, A. J., Würthwein, F., Bliss, D. W., Masek, G., Paar, H. P., Prell, S., Sharma, V., Asner, D. M., Gronberg, J., Hill, T. S., Lange, D. J., Morrison, R. J., ... Zhou, G. J. (1998). Improved measurement of the pseudoscalar decay constant f_Ds. Physical Review D - Particles, Fields, Gravitation and Cosmology, 58(3), 320021-3200210. Article 032002. https://doi.org/10.1103/PhysRevD.58.032002

@article{081bf9e867de4e778b763b4e37dfb6be,

title = "Improved measurement of the pseudoscalar decay constant fDs",

abstract = "We present a new determination of fDs using 5 million e+e-→c{\=c} events obtained with the CLEO II detector. Our value is derived from our new measured ratio Γ(D+s → μ+ν)/Δ(D+s → φπ+) = 0.173 ± 0.023 ± 0.035. Using {\ss}(D+s → φπ+) = (3.6 ± 0.9)%, we extract fDs = (280 ± 19 ± 28 ± 34) MeV. We compare this result with various model calculations.",

author = "M. Chada and S. Chan and G. Eigen and Miller, {J. S.} and C. O'Grady and M. Schmidtler and J. Urheim and Weinstein, {A. J.} and F. W{\"u}rthwein and Bliss, {D. W.} and G. Masek and Paar, {H. P.} and S. Prell and V. Sharma and Asner, {D. M.} and J. Gronberg and Hill, {T. S.} and Lange, {D. J.} and Morrison, {R. J.} and Nelson, {H. N.} and Nelson, {T. K.} and D. Roberts and A. Ryd and R. Balest and Behrens, {B. H.} and Ford, {W. T.} and H. Park and J. Roy and Smith, {J. G.} and Alexander, {J. P.} and R. Baker and C. Bebek and Berger, {B. E.} and K. Berkelman and K. Bloom and V. Boisvert and Cassel, {D. G.} and Crowcroft, {D. S.} and M. Dickson and {von Dombrowski}, S. and Drell, {P. S.} and Eckl{\"u}nd, {K. M.} and R. Ehrlich and Foland, {A. D.} and P. Gaidarev and L. Gibbons and B. Gittelman and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and Hopman, {P. I.} and J. Kandaswamy and Kim, {P. C.} and Kreinick, {D. L.} and T. Lee and Y. Liu and Mistry, {N. B.} and Ng, {C. R.} and E. Nordberg and M. Ogg and Patterson, {J. R.} and D. Peterson and D. Riley and A. Soffer and B. Valant-Spaight and C. Ward and M. Athanas and P. Avery and Jones, {C. D.} and M. Lohner and S. Patton and C. Prescott and J. Yelton and J. Zheng and G. Brandenburg and Briere, {R. A.} and A. Ershov and Gao, {Y. S.} and Kim, {D. Y.J.} and R. Wilson and H. Yamamoto and Browder, {T. E.} and Y. Li and Rodriguez, {J. L.} and T. Bergfeld and Eisenstein, {B. I.} and J. Ernst and Gladding, {G. E.} and Gollin, {G. D.} and Hans, {R. M.} and E. Johnson and I. Karliner and Marsh, {M. A.} and M. Palmer and M. Selen and Thaler, {J. J.} and Edwards, {K. W.} and A. Bellerive and R. Janicek and MacFarlane, {D. B.} and Patel, {P. M.} and Sadoff, {A. J.} and R. Ammar and P. Baringer and A. Bean and D. Besson and D. Coppage and C. Darling and R. Davis and S. Kotov and I. Kravchenko and N. Kwak and L. Zhou and S. Anderson and Y. Kubota and Lee, {S. J.} and O'Neill, {J. J.} and R. Poling and T. Riehle and A. Smith and Alam, {M. S.} and Athar, {S. B.} and Z. Ling and Mahmood, {A. H.} and S. Timm and F. Wappler and A. Anastassov and Duboscq, {J. E.} and D. Fujino and Gan, {K. K.} and T. Hart and K. Honscheid and H. Kagan and R. Kass and J. Lee and Spencer, {M. B.} and M. Sung and A. Undrus and A. Wolf and Zoeller, {M. M.} and B. Nemati and Richichi, {S. J.} and Ross, {W. R.} and H. Severini and P. Skubic and M. Bishai and J. Fast and Hinson, {J. W.} and N. Menon and Miller, {D. H.} and Shibata, {E. I.} and Shipsey, {I. P.J.} and M. Yurko and S. Glenn and Johnson, {S. D.} and Y. Kwon and S. Roberts and Thorndike, {E. H.} and Jessop, {C. P.} and K. Lingel and H. Marsiske and Perl, {M. L.} and V. Savinov and D. Ugolini and R. Wang and X. Zhou and Coan, {T. E.} and V. Fadeyev and I. Korolkov and Y. Maravin and I. Narsky and V. Shelkov and J. Staeck and R. Stroynowski and I. Volobouev and J. Ye and M. Artuso and F. Azfar and A. Efimov and M. Goldberg and D. He and S. Kopp and Moneti, {G. C.} and R. Mo{\"u}ntain and S. Sch{\"u}h and T. Skwarnicki and S. Stone and G. Viehhauser and X. Xing and J. Bartelt and Csorna, {S. E.} and V. Jain and McLean, {K. W.} and S. Marka 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.}",

year = "1998",

month = aug,

day = "1",

doi = "10.1103/PhysRevD.58.032002",

language = "English",

volume = "58",

pages = "320021--3200210",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "0556-2821",

publisher = "American Physical Society",

number = "3",

}

Chada, M, Chan, S, Eigen, G, Miller, JS, O'Grady, C, Schmidtler, M, Urheim, J, Weinstein, AJ, Würthwein, F, Bliss, DW, Masek, G, Paar, HP, Prell, S, Sharma, V, Asner, DM, Gronberg, J, Hill, TS, Lange, DJ, Morrison, RJ, Nelson, HN, Nelson, TK, Roberts, D, Ryd, A, Balest, R, Behrens, BH, Ford, WT, Park, H, Roy, J, Smith, JG, Alexander, JP, Baker, R, Bebek, C, Berger, BE, Berkelman, K, Bloom, K, Boisvert, V, Cassel, DG, Crowcroft, DS, Dickson, M, von Dombrowski, S, Drell, PS, Ecklünd, KM, Ehrlich, R, Foland, AD, Gaidarev, P, Gibbons, L, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Hopman, PI, Kandaswamy, J, Kim, PC, Kreinick, DL, Lee, T, Liu, Y, Mistry, NB, Ng, CR, Nordberg, E, Ogg, M, Patterson, JR, Peterson, D, Riley, D, Soffer, A, Valant-Spaight, B, Ward, C, Athanas, M, Avery, P, Jones, CD, Lohner, M, Patton, S, Prescott, C, Yelton, J, Zheng, J, Brandenburg, G, Briere, RA, Ershov, A, Gao, YS, Kim, DYJ, Wilson, R, Yamamoto, H, Browder, TE, Li, Y, Rodriguez, JL, Bergfeld, T, Eisenstein, BI, Ernst, J, Gladding, GE, Gollin, GD, Hans, RM, Johnson, E, Karliner, I, Marsh, MA, Palmer, M, Selen, M, Thaler, JJ, Edwards, KW, Bellerive, A, Janicek, R, MacFarlane, DB, Patel, PM, Sadoff, AJ, Ammar, R, Baringer, P, Bean, A, Besson, D, Coppage, D, Darling, C, Davis, R, Kotov, S, Kravchenko, I, Kwak, N, Zhou, L, Anderson, S, Kubota, Y, Lee, SJ, O'Neill, JJ, Poling, R, Riehle, T, Smith, A, Alam, MS, Athar, SB, Ling, Z, Mahmood, AH, Timm, S, Wappler, F, Anastassov, A, Duboscq, JE, Fujino, D, Gan, KK, Hart, T, Honscheid, K, Kagan, H, Kass, R, Lee, J, Spencer, MB, Sung, M, Undrus, A, Wolf, A, Zoeller, MM, Nemati, B, Richichi, SJ, Ross, WR, Severini, H, Skubic, P, Bishai, M, Fast, J, Hinson, JW, Menon, N, Miller, DH, Shibata, EI, Shipsey, IPJ, Yurko, M, Glenn, S, Johnson, SD, Kwon, Y, Roberts, S, Thorndike, EH, Jessop, CP, Lingel, K, Marsiske, H, Perl, ML, Savinov, V, Ugolini, D, Wang, R, Zhou, X, Coan, TE, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Shelkov, V, Staeck, J, Stroynowski, R, Volobouev, I, Ye, J, Artuso, M, Azfar, F, Efimov, A, Goldberg, M, He, D, Kopp, S, Moneti, GC, Moüntain, R, Schüh, S, Skwarnicki, T, Stone, S, Viehhauser, G, Xing, X, Bartelt, J, Csorna, SE, Jain, V, McLean, KW, Marka, S, Godang, R, Kinoshita, K, Lai, IC, Pomianowski, P, Schrenk, S, Bonvicini, G, Cinabro, D, Greene, R, Perera, LP & Zhou, GJ 1998, 'Improved measurement of the pseudoscalar decay constant f_Ds', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 58, no. 3, 032002, pp. 320021-3200210. https://doi.org/10.1103/PhysRevD.58.032002

TY - JOUR

T1 - Improved measurement of the pseudoscalar decay constant fDs

AU - Chada, M.

AU - Chan, S.

AU - Eigen, G.

AU - Miller, J. S.

AU - O'Grady, C.

AU - Schmidtler, M.

AU - Urheim, J.

AU - Weinstein, A. J.

AU - Würthwein, F.

AU - Bliss, D. W.

AU - Masek, G.

AU - Paar, H. P.

AU - Prell, S.

AU - Sharma, V.

AU - Asner, D. M.

AU - Gronberg, J.

AU - Hill, T. S.

AU - Lange, D. J.

AU - Morrison, R. J.

AU - Nelson, H. N.

AU - Nelson, T. K.

AU - Roberts, D.

AU - Ryd, A.

AU - Balest, R.

AU - Behrens, B. H.

AU - Ford, W. T.

AU - Park, H.

AU - Roy, J.

AU - Smith, J. G.

AU - Alexander, J. P.

AU - Baker, R.

AU - Bebek, C.

AU - Berger, B. E.

AU - Berkelman, K.

AU - Bloom, K.

AU - Boisvert, V.

AU - Cassel, D. G.

AU - Crowcroft, D. S.

AU - Dickson, M.

AU - von Dombrowski, S.

AU - Drell, P. S.

AU - Ecklünd, K. M.

AU - Ehrlich, R.

AU - Foland, A. D.

AU - Gaidarev, P.

AU - Gibbons, L.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hopman, P. I.

AU - Kandaswamy, J.

AU - Kim, P. C.

AU - Kreinick, D. L.

AU - Lee, T.

AU - Liu, Y.

AU - Mistry, N. B.

AU - Ng, C. R.

AU - Nordberg, E.

AU - Ogg, M.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Soffer, A.

AU - Valant-Spaight, B.

AU - Ward, C.

AU - Athanas, M.

AU - Avery, P.

AU - Jones, C. D.

AU - Lohner, M.

AU - Patton, S.

AU - Prescott, C.

AU - Yelton, J.

AU - Zheng, J.

AU - Brandenburg, G.

AU - Briere, R. A.

AU - Ershov, A.

AU - Gao, Y. S.

AU - Kim, D. Y.J.

AU - Wilson, R.

AU - Yamamoto, H.

AU - Browder, T. E.

AU - Li, Y.

AU - Rodriguez, J. L.

AU - Bergfeld, T.

AU - Eisenstein, B. I.

AU - Ernst, J.

AU - Gladding, G. E.

AU - Gollin, G. D.

AU - Hans, R. M.

AU - Johnson, E.

AU - Karliner, I.

AU - Marsh, M. A.

AU - Palmer, M.

AU - Selen, M.

AU - Thaler, J. J.

AU - Edwards, K. W.

AU - Bellerive, A.

AU - Janicek, R.

AU - MacFarlane, D. B.

AU - Patel, P. M.

AU - Sadoff, A. J.

AU - Ammar, R.

AU - Baringer, P.

AU - Bean, A.

AU - Besson, D.

AU - Coppage, D.

AU - Darling, C.

AU - Davis, R.

AU - Kotov, S.

AU - Kravchenko, I.

AU - Kwak, N.

AU - Zhou, L.

AU - Anderson, S.

AU - Kubota, Y.

AU - Lee, S. J.

AU - O'Neill, J. J.

AU - Poling, R.

AU - Riehle, T.

AU - Smith, A.

AU - Alam, M. S.

AU - Athar, S. B.

AU - Ling, Z.

AU - Mahmood, A. H.

AU - Timm, S.

AU - Wappler, F.

AU - Anastassov, A.

AU - Duboscq, J. E.

AU - Fujino, D.

AU - Gan, K. K.

AU - Hart, T.

AU - Honscheid, K.

AU - Kagan, H.

AU - Kass, R.

AU - Lee, J.

AU - Spencer, M. B.

AU - Sung, M.

AU - Undrus, A.

AU - Wolf, A.

AU - Zoeller, M. M.

AU - Nemati, B.

AU - Richichi, S. J.

AU - Ross, W. R.

AU - Severini, H.

AU - Skubic, P.

AU - Bishai, M.

AU - Fast, J.

AU - Hinson, J. W.

AU - Menon, N.

AU - Miller, D. H.

AU - Shibata, E. I.

AU - Shipsey, I. P.J.

AU - Yurko, M.

AU - Glenn, S.

AU - Johnson, S. D.

AU - Kwon, Y.

AU - Roberts, S.

AU - Thorndike, E. H.

AU - Jessop, C. P.

AU - Lingel, K.

AU - Marsiske, H.

AU - Perl, M. L.

AU - Savinov, V.

AU - Ugolini, D.

AU - Wang, R.

AU - Zhou, X.

AU - Coan, T. E.

AU - Fadeyev, V.

AU - Korolkov, I.

AU - Maravin, Y.

AU - Narsky, I.

AU - Shelkov, V.

AU - Staeck, J.

AU - Stroynowski, R.

AU - Volobouev, I.

AU - Ye, J.

AU - Artuso, M.

AU - Azfar, F.

AU - Efimov, A.

AU - Goldberg, M.

AU - He, D.

AU - Kopp, S.

AU - Moneti, G. C.

AU - Moüntain, R.

AU - Schüh, S.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Viehhauser, G.

AU - Xing, X.

AU - Bartelt, J.

AU - Csorna, S. E.

AU - Jain, V.

AU - McLean, K. W.

AU - Marka, S.

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.

PY - 1998/8/1

Y1 - 1998/8/1

N2 - We present a new determination of fDs using 5 million e+e-→cc̄ events obtained with the CLEO II detector. Our value is derived from our new measured ratio Γ(D+s → μ+ν)/Δ(D+s → φπ+) = 0.173 ± 0.023 ± 0.035. Using ß(D+s → φπ+) = (3.6 ± 0.9)%, we extract fDs = (280 ± 19 ± 28 ± 34) MeV. We compare this result with various model calculations.

AB - We present a new determination of fDs using 5 million e+e-→cc̄ events obtained with the CLEO II detector. Our value is derived from our new measured ratio Γ(D+s → μ+ν)/Δ(D+s → φπ+) = 0.173 ± 0.023 ± 0.035. Using ß(D+s → φπ+) = (3.6 ± 0.9)%, we extract fDs = (280 ± 19 ± 28 ± 34) MeV. We compare this result with various model calculations.

UR - http://www.scopus.com/inward/record.url?scp=0347297002&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0347297002&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.58.032002

DO - 10.1103/PhysRevD.58.032002

M3 - Article

AN - SCOPUS:0347297002

SN - 0556-2821

VL - 58

SP - 320021

EP - 3200210

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 3

M1 - 032002

ER -

Improved measurement of the pseudoscalar decay constant f_Ds

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