Measurement of the ratios of form factors in the decay Ds+ → φe+ve

P. Avery; A. Freyberger; J. Rodriguez; S. Yang; J. Yelton; D. Cinabro; T. Liu; M. Saulnier; R. Wilson; H. Yamamoto; T. Bergfeld; B. I. Eisenstein; G. Gollin; B. Ong; M. Palmer; M. Selen; J. J. Thaler; K. W. Edwards; M. Ogg; A. Bellerive; D. I. Britton; E. R.F. Hyatt; D. B. MacFarlane; P. M. Patel; B. Spaan; A. J. Sadoff; R. Ammar; P. Baringer; A. Bean; D. Besson; D. Coppage; N. Copty; R. Davis; N. Hancock; M. Kelly; S. Kotov; I. Kravchenko; N. Kwak; H. Lam; Y. Kubota; M. Lattery; M. Momayezi; J. K. Nelson; S. Patton; R. Poling; V. Savinov; S. Schrenk; R. Wang; M. S. Alam; I. J. Kim; Z. Ling; A. H. Mahmood; J. J. O'Neill; H. Severini; C. R. Sun; F. Wappler; G. Crawford; C. M. Daubenmier; R. Fulton; D. Fujino; K. K. Gan; K. Honscheid; H. Hagan; R. Kass; J. Lee; R. Malchow; Y. Skovpen; M. Sung; C. White; M. M. Zoeller; F. Butler; X. Fu; B. Nemati; W. R. Ross; P. Skubic; M. Wood; M. Bishai; J. Fast; E. Gerndt; R. L. McIlwain; T. Miao; D. H. Miller; M. Modesitt; D. Payne; E. I. Shibata; I. P.J. Shipsey; P. N. Wang; M. Battle; J. Ernst; L. Gibbons; Y. Kwon; S. Roberts; E. H. Thorndike; C. H. Wang; J. Dominick; M. Lambrecht; S. Sanghera; V. Shelkov; T. Skwarnicki; R. Stroynowski; I. Volobouev; G. Wei; P. Zadorozhny; M. Artuso; M. Gao; M. Goldberg; D. He; N. Horwitz; G. C. Moneti; R. Mountain; F. Muheim; Y. Mukhin; S. Playfer; Y. Rozen; S. Stone; X. Xing; G. Zhu; J. Bartelt; S. E. Csorna; Z. Egyed; V. Jain; D. Gibaut; K. Kinoshita; P. Pomianowski; B. Barish; M. Chadha; S. Chan; D. F. Cowen; G. Eigen; J. S. Miller; C. O'Grady; J. Urheim; A. J. Weinstein; M. Athanas; W. Brower; G. Masek; H. P. Paar; J. Gronberg; R. Kutschke; S. Menary; R. J. Morrison; S. Nakanishi; H. N. Nelson; T. K. Nelson; C. Qiao; J. D. Richman; A. Ryd; H. Tajima; D. Sperka; M. S. Witherell; R. Balest; K. Cho; W. T. Ford; D. R. Johnson; K. Lingel; M. Lohner; P. Rankin; J. G. Smith; J. P. Alexander; C. Bebek; K. Berkelman; K. Bloom; T. E. Browder; D. G. Cassel; H. A. Cho; D. M. Coffman; D. S. Crowcroft; P. S. Drell; D. Dumas; R. Ehrlich; P. Gaidarev; M. Garcia-Sciveres; B. Geiser; B. Gittelman; S. W. Gray; D. L. Hartill; B. K. Heltsley; S. Henderson; C. D. Jones; S. L. Jones; J. Kandaswamy; N. Katayama; P. C. Kim; D. L. Kreinick; G. S. Ludwig; J. Masui; J. Mevissen; N. B. Mistry; C. R. Ng; E. Nordberg; J. R. Patterson; D. Peterson; D. Riley; S. Salman; M. Sapper; F. Würthwein

doi:10.1016/0370-2693(94)90994-6

Measurement of the ratios of form factors in the decay D_s⁺ → φe⁺v_e

P. Avery, A. Freyberger, J. Rodriguez, S. Yang, J. Yelton, D. Cinabro, T. Liu, M. Saulnier, R. Wilson, H. Yamamoto, T. Bergfeld, B. I. Eisenstein, G. Gollin, B. Ong, M. Palmer, M. Selen, J. J. Thaler, K. W. Edwards, M. Ogg, A. BelleriveD. I. Britton, E. R.F. Hyatt, D. B. MacFarlane, P. M. Patel, B. Spaan, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, N. Copty, R. Davis, N. Hancock, M. Kelly, S. Kotov, I. Kravchenko, N. Kwak, H. Lam, Y. Kubota, M. Lattery, M. Momayezi, J. K. Nelson, S. Patton, R. Poling, V. Savinov, S. Schrenk, R. Wang, M. S. Alam, I. J. Kim, Z. Ling, A. H. Mahmood, J. J. O'Neill, H. Severini, C. R. Sun, F. Wappler, G. Crawford, C. M. Daubenmier, R. Fulton, D. Fujino, K. K. Gan, K. Honscheid, H. Hagan, R. Kass, J. Lee, R. Malchow, Y. Skovpen, M. Sung, C. White, M. M. Zoeller, F. Butler, X. Fu, B. Nemati, W. R. Ross, P. Skubic, M. Wood, M. Bishai, J. Fast, E. Gerndt, R. L. McIlwain, T. Miao, D. H. Miller, M. Modesitt, D. Payne, E. I. Shibata, I. P.J. Shipsey, P. N. Wang, M. Battle, J. Ernst, L. Gibbons, Y. Kwon, S. Roberts, E. H. Thorndike, C. H. Wang, J. Dominick, M. Lambrecht, S. Sanghera, V. Shelkov, T. Skwarnicki, R. Stroynowski, I. Volobouev, G. Wei, P. Zadorozhny, M. Artuso, M. Gao, M. Goldberg, D. He, N. Horwitz, G. C. Moneti, R. Mountain, F. Muheim, Y. Mukhin, S. Playfer, Y. Rozen, S. Stone, X. Xing, G. Zhu, J. Bartelt, S. E. Csorna, Z. Egyed, V. Jain, D. Gibaut, K. Kinoshita, P. Pomianowski, B. Barish, M. Chadha, S. Chan, D. F. Cowen, G. Eigen, J. S. Miller, C. O'Grady, J. Urheim, A. J. Weinstein, M. Athanas, W. Brower, G. Masek, H. P. Paar, J. Gronberg, R. Kutschke, S. Menary, R. J. Morrison, S. Nakanishi, H. N. Nelson, T. K. Nelson, C. Qiao, J. D. Richman, A. Ryd, H. Tajima, D. Sperka, M. S. Witherell, R. Balest, K. Cho, W. T. Ford, D. R. Johnson, K. Lingel, M. Lohner, P. Rankin, J. G. Smith, J. P. Alexander, C. Bebek, K. Berkelman, K. Bloom, T. E. Browder, D. G. Cassel, H. A. Cho, D. M. Coffman, D. S. Crowcroft, P. S. Drell, D. Dumas, R. Ehrlich, P. Gaidarev, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, S. Henderson, C. D. Jones, S. L. Jones, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, C. R. Ng, E. Nordberg, J. R. Patterson, D. Peterson, D. Riley, S. Salman, M. Sapper, F. Würthwein

Department of Physics

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

21 Scopus citations

Abstract

The dynamics of the decay D_s⁺ → φe⁺v_e are studied using a sample of 474 events recorded by the CLEO II detector. A three dimensional fit to the decay angles and q² is performed to extract the ratios of form factors R₂=A₂(0)/A₁(0) and R_v=V(0 )/ A₁(0), where A₁(0) and A₂(0) are the two axial vector form factors and V(0) is the vector form factor evaluated at q² =0. By assuming the single pole parameterization for the form factors, we obtain: R₂=1.4±0.5±0.3 and R_v=0.9±0.6±0.3.

Original language	English (US)
Pages (from-to)	405-410
Number of pages	6
Journal	Physics Letters B
Volume	337
Issue number	3-4
DOIs	https://doi.org/10.1016/0370-2693(94)90994-6
State	Published - Oct 13 1994

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0370-2693(94)90994-6

Cite this

Avery, P., Freyberger, A., Rodriguez, J., Yang, S., Yelton, J., Cinabro, D., Liu, T., Saulnier, M., Wilson, R., Yamamoto, H., Bergfeld, T., Eisenstein, B. I., Gollin, G., Ong, B., Palmer, M., Selen, M., Thaler, J. J., Edwards, K. W., Ogg, M., ... Würthwein, F. (1994). Measurement of the ratios of form factors in the decay D_s⁺ → φe⁺v_e. Physics Letters B, 337(3-4), 405-410. https://doi.org/10.1016/0370-2693(94)90994-6

Avery, P, Freyberger, A, Rodriguez, J, Yang, S, Yelton, J, Cinabro, D, Liu, T, Saulnier, M, Wilson, R, Yamamoto, H, Bergfeld, T, Eisenstein, BI, Gollin, G, Ong, B, Palmer, M, Selen, M, Thaler, JJ, Edwards, KW, Ogg, M, Bellerive, A, Britton, DI, Hyatt, ERF, MacFarlane, DB, Patel, PM, Spaan, B, Sadoff, AJ, Ammar, R, Baringer, P, Bean, A, Besson, D, Coppage, D, Copty, N, Davis, R, Hancock, N, Kelly, M, Kotov, S, Kravchenko, I, Kwak, N, Lam, H, Kubota, Y, Lattery, M, Momayezi, M, Nelson, JK, Patton, S, Poling, R, Savinov, V, Schrenk, S, Wang, R, Alam, MS, Kim, IJ, Ling, Z, Mahmood, AH, O'Neill, JJ, Severini, H, Sun, CR, Wappler, F, Crawford, G, Daubenmier, CM, Fulton, R, Fujino, D, Gan, KK, Honscheid, K, Hagan, H, Kass, R, Lee, J, Malchow, R, Skovpen, Y, Sung, M, White, C, Zoeller, MM, Butler, F, Fu, X, Nemati, B, Ross, WR, Skubic, P, Wood, M, Bishai, M, Fast, J, Gerndt, E, McIlwain, RL, Miao, T, Miller, DH, Modesitt, M, Payne, D, Shibata, EI, Shipsey, IPJ, Wang, PN, Battle, M, Ernst, J, Gibbons, L, Kwon, Y, Roberts, S, Thorndike, EH, Wang, CH, Dominick, J, Lambrecht, M, Sanghera, S, Shelkov, V, Skwarnicki, T, Stroynowski, R, Volobouev, I, Wei, G, Zadorozhny, P, Artuso, M, Gao, M, Goldberg, M, He, D, Horwitz, N, Moneti, GC, Mountain, R, Muheim, F, Mukhin, Y, Playfer, S, Rozen, Y, Stone, S, Xing, X, Zhu, G, Bartelt, J, Csorna, SE, Egyed, Z, Jain, V, Gibaut, D, Kinoshita, K, Pomianowski, P, Barish, B, Chadha, M, Chan, S, Cowen, DF, Eigen, G, Miller, JS, O'Grady, C, Urheim, J, Weinstein, AJ, Athanas, M, Brower, W, Masek, G, Paar, HP, Gronberg, J, Kutschke, R, Menary, S, Morrison, RJ, Nakanishi, S, Nelson, HN, Nelson, TK, Qiao, C, Richman, JD, Ryd, A, Tajima, H, Sperka, D, Witherell, MS, Balest, R, Cho, K, Ford, WT, Johnson, DR, Lingel, K, Lohner, M, Rankin, P, Smith, JG, Alexander, JP, Bebek, C, Berkelman, K, Bloom, K, Browder, TE, Cassel, DG, Cho, HA, Coffman, DM, Crowcroft, DS, Drell, PS, Dumas, D, Ehrlich, R, Gaidarev, P, Garcia-Sciveres, M, Geiser, B, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Henderson, S, Jones, CD, Jones, SL, Kandaswamy, J, Katayama, N, Kim, PC, Kreinick, DL, Ludwig, GS, Masui, J, Mevissen, J, Mistry, NB, Ng, CR, Nordberg, E, Patterson, JR, Peterson, D, Riley, D, Salman, S, Sapper, M & Würthwein, F 1994, 'Measurement of the ratios of form factors in the decay D_s⁺ → φe⁺v_e', Physics Letters B, vol. 337, no. 3-4, pp. 405-410. https://doi.org/10.1016/0370-2693(94)90994-6

@article{eaa3be5dbdc645139d15bbe338bd2673,

title = "Measurement of the ratios of form factors in the decay Ds+ → φe+ve",

abstract = "The dynamics of the decay Ds+ → φe+ve are studied using a sample of 474 events recorded by the CLEO II detector. A three dimensional fit to the decay angles and q2 is performed to extract the ratios of form factors R2=A2(0)/A1(0) and Rv=V(0 )/ A1(0), where A1(0) and A2(0) are the two axial vector form factors and V(0) is the vector form factor evaluated at q2 =0. By assuming the single pole parameterization for the form factors, we obtain: R2=1.4±0.5±0.3 and Rv=0.9±0.6±0.3.",

author = "P. Avery and A. Freyberger and J. Rodriguez and S. Yang and J. Yelton and D. Cinabro and T. Liu and M. Saulnier and R. Wilson and H. Yamamoto and T. Bergfeld and Eisenstein, {B. I.} and G. Gollin and B. Ong and M. Palmer and M. Selen and Thaler, {J. J.} and Edwards, {K. W.} and M. Ogg and A. Bellerive and Britton, {D. I.} and Hyatt, {E. R.F.} and MacFarlane, {D. B.} and Patel, {P. M.} and B. Spaan and Sadoff, {A. J.} and R. Ammar and P. Baringer and A. Bean and D. Besson and D. Coppage and N. Copty and R. Davis and N. Hancock and M. Kelly and S. Kotov and I. Kravchenko and N. Kwak and H. Lam and Y. Kubota and M. Lattery and M. Momayezi and Nelson, {J. K.} and S. Patton and R. Poling and V. Savinov and S. Schrenk and R. Wang and Alam, {M. S.} and Kim, {I. J.} and Z. Ling and Mahmood, {A. H.} and O'Neill, {J. J.} and H. Severini and Sun, {C. R.} and F. Wappler and G. Crawford and Daubenmier, {C. M.} and R. Fulton and D. Fujino and Gan, {K. K.} and K. Honscheid and H. Hagan and R. Kass and J. Lee and R. Malchow and Y. Skovpen and M. Sung and C. White and Zoeller, {M. M.} and F. Butler and X. Fu and B. Nemati and Ross, {W. R.} and P. Skubic and M. Wood and M. Bishai and J. Fast and E. Gerndt and McIlwain, {R. L.} and T. Miao and Miller, {D. H.} and M. Modesitt and D. Payne and Shibata, {E. I.} and Shipsey, {I. P.J.} and Wang, {P. N.} and M. Battle and J. Ernst and L. Gibbons and Y. Kwon and S. Roberts and Thorndike, {E. H.} and Wang, {C. H.} and J. Dominick and M. Lambrecht and S. Sanghera and V. Shelkov and T. Skwarnicki and R. Stroynowski and I. Volobouev and G. Wei and P. Zadorozhny and M. Artuso and M. Gao and M. Goldberg and D. He and N. Horwitz and Moneti, {G. C.} and R. Mountain and F. Muheim and Y. Mukhin and S. Playfer and Y. Rozen and S. Stone and X. Xing and G. Zhu and J. Bartelt and Csorna, {S. E.} and Z. Egyed and V. Jain and D. Gibaut and K. Kinoshita and P. Pomianowski and B. Barish and M. Chadha and S. Chan and Cowen, {D. F.} and G. Eigen and Miller, {J. S.} and C. O'Grady and J. Urheim and Weinstein, {A. J.} and M. Athanas and W. Brower and G. Masek and Paar, {H. P.} and J. Gronberg and R. Kutschke and S. Menary and Morrison, {R. J.} and S. Nakanishi and Nelson, {H. N.} and Nelson, {T. K.} and C. Qiao and Richman, {J. D.} and A. Ryd and H. Tajima and D. Sperka and Witherell, {M. S.} and R. Balest and K. Cho and Ford, {W. T.} and Johnson, {D. R.} and K. Lingel and M. Lohner and P. Rankin and Smith, {J. G.} and Alexander, {J. P.} and C. Bebek and K. Berkelman and K. Bloom and Browder, {T. E.} and Cassel, {D. G.} and Cho, {H. A.} and Coffman, {D. M.} and Crowcroft, {D. S.} and Drell, {P. S.} and D. Dumas and R. Ehrlich and P. Gaidarev and M. Garcia-Sciveres and B. Geiser and B. Gittelman and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and S. Henderson and Jones, {C. D.} and Jones, {S. L.} and J. Kandaswamy and N. Katayama and Kim, {P. C.} and Kreinick, {D. L.} and Ludwig, {G. S.} and J. Masui and J. Mevissen and Mistry, {N. B.} and Ng, {C. R.} and E. Nordberg and Patterson, {J. R.} and D. Peterson and D. Riley and S. Salman and M. Sapper and F. W{\"u}rthwein",

note = "Funding Information: We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. J.P.A. and P,S.D. thank the PYI program of the NSF, I.P.J.S. thanks the YI program of the NSF, G.E. thanks the Heisenberg Foundation, K.K.G., I.P.J.S., and T.S. thank the TNRLC, K.K.G., H.N.N., J.D.R., T.S. and H.Y. thank the OJI program of DOE and P.R. thanks the A.P. Sloan Foundation for support. This work was supported by the National Science Foundation, the U.S. Dept. of Energy and the Natural Sciences and Engineering Research Council of Canada.",

year = "1994",

month = oct,

day = "13",

doi = "10.1016/0370-2693(94)90994-6",

language = "English (US)",

volume = "337",

pages = "405--410",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - Measurement of the ratios of form factors in the decay Ds+ → φe+ve

AU - Avery, P.

AU - Freyberger, A.

AU - Rodriguez, J.

AU - Yang, S.

AU - Yelton, J.

AU - Cinabro, D.

AU - Liu, T.

AU - Saulnier, M.

AU - Wilson, R.

AU - Yamamoto, H.

AU - Bergfeld, T.

AU - Eisenstein, B. I.

AU - Gollin, G.

AU - Ong, B.

AU - Palmer, M.

AU - Selen, M.

AU - Thaler, J. J.

AU - Edwards, K. W.

AU - Ogg, M.

AU - Bellerive, A.

AU - Britton, D. I.

AU - Hyatt, E. R.F.

AU - MacFarlane, D. B.

AU - Patel, P. M.

AU - Spaan, B.

AU - Sadoff, A. J.

AU - Ammar, R.

AU - Baringer, P.

AU - Bean, A.

AU - Besson, D.

AU - Coppage, D.

AU - Copty, N.

AU - Davis, R.

AU - Hancock, N.

AU - Kelly, M.

AU - Kotov, S.

AU - Kravchenko, I.

AU - Kwak, N.

AU - Lam, H.

AU - Kubota, Y.

AU - Lattery, M.

AU - Momayezi, M.

AU - Nelson, J. K.

AU - Patton, S.

AU - Poling, R.

AU - Savinov, V.

AU - Schrenk, S.

AU - Wang, R.

AU - Alam, M. S.

AU - Kim, I. J.

AU - Ling, Z.

AU - Mahmood, A. H.

AU - O'Neill, J. J.

AU - Severini, H.

AU - Sun, C. R.

AU - Wappler, F.

AU - Crawford, G.

AU - Daubenmier, C. M.

AU - Fulton, R.

AU - Fujino, D.

AU - Gan, K. K.

AU - Honscheid, K.

AU - Hagan, H.

AU - Kass, R.

AU - Lee, J.

AU - Malchow, R.

AU - Skovpen, Y.

AU - Sung, M.

AU - White, C.

AU - Zoeller, M. M.

AU - Butler, F.

AU - Fu, X.

AU - Nemati, B.

AU - Ross, W. R.

AU - Skubic, P.

AU - Wood, M.

AU - Bishai, M.

AU - Fast, J.

AU - Gerndt, E.

AU - McIlwain, R. L.

AU - Miao, T.

AU - Miller, D. H.

AU - Modesitt, M.

AU - Payne, D.

AU - Shibata, E. I.

AU - Shipsey, I. P.J.

AU - Wang, P. N.

AU - Battle, M.

AU - Ernst, J.

AU - Gibbons, L.

AU - Kwon, Y.

AU - Roberts, S.

AU - Thorndike, E. H.

AU - Wang, C. H.

AU - Dominick, J.

AU - Lambrecht, M.

AU - Sanghera, S.

AU - Shelkov, V.

AU - Skwarnicki, T.

AU - Stroynowski, R.

AU - Volobouev, I.

AU - Wei, G.

AU - Zadorozhny, P.

AU - Artuso, M.

AU - Gao, M.

AU - Goldberg, M.

AU - He, D.

AU - Horwitz, N.

AU - Moneti, G. C.

AU - Mountain, R.

AU - Muheim, F.

AU - Mukhin, Y.

AU - Playfer, S.

AU - Rozen, Y.

AU - Stone, S.

AU - Xing, X.

AU - Zhu, G.

AU - Bartelt, J.

AU - Csorna, S. E.

AU - Egyed, Z.

AU - Jain, V.

AU - Gibaut, D.

AU - Kinoshita, K.

AU - Pomianowski, P.

AU - Barish, B.

AU - Chadha, M.

AU - Chan, S.

AU - Cowen, D. F.

AU - Eigen, G.

AU - Miller, J. S.

AU - O'Grady, C.

AU - Urheim, J.

AU - Weinstein, A. J.

AU - Athanas, M.

AU - Brower, W.

AU - Masek, G.

AU - Paar, H. P.

AU - Gronberg, J.

AU - Kutschke, R.

AU - Menary, S.

AU - Morrison, R. J.

AU - Nakanishi, S.

AU - Nelson, H. N.

AU - Nelson, T. K.

AU - Qiao, C.

AU - Richman, J. D.

AU - Ryd, A.

AU - Tajima, H.

AU - Sperka, D.

AU - Witherell, M. S.

AU - Balest, R.

AU - Cho, K.

AU - Ford, W. T.

AU - Johnson, D. R.

AU - Lingel, K.

AU - Lohner, M.

AU - Rankin, P.

AU - Smith, J. G.

AU - Alexander, J. P.

AU - Bebek, C.

AU - Berkelman, K.

AU - Bloom, K.

AU - Browder, T. E.

AU - Cassel, D. G.

AU - Cho, H. A.

AU - Coffman, D. M.

AU - Crowcroft, D. S.

AU - Drell, P. S.

AU - Dumas, D.

AU - Ehrlich, R.

AU - Gaidarev, P.

AU - Garcia-Sciveres, M.

AU - Geiser, B.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Henderson, S.

AU - Jones, C. D.

AU - Jones, S. L.

AU - Kandaswamy, J.

AU - Katayama, N.

AU - Kim, P. C.

AU - Kreinick, D. L.

AU - Ludwig, G. S.

AU - Masui, J.

AU - Mevissen, J.

AU - Mistry, N. B.

AU - Ng, C. R.

AU - Nordberg, E.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Salman, S.

AU - Sapper, M.

AU - Würthwein, F.

N1 - Funding Information: We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. J.P.A. and P,S.D. thank the PYI program of the NSF, I.P.J.S. thanks the YI program of the NSF, G.E. thanks the Heisenberg Foundation, K.K.G., I.P.J.S., and T.S. thank the TNRLC, K.K.G., H.N.N., J.D.R., T.S. and H.Y. thank the OJI program of DOE and P.R. thanks the A.P. Sloan Foundation for support. This work was supported by the National Science Foundation, the U.S. Dept. of Energy and the Natural Sciences and Engineering Research Council of Canada.

PY - 1994/10/13

Y1 - 1994/10/13

N2 - The dynamics of the decay Ds+ → φe+ve are studied using a sample of 474 events recorded by the CLEO II detector. A three dimensional fit to the decay angles and q2 is performed to extract the ratios of form factors R2=A2(0)/A1(0) and Rv=V(0 )/ A1(0), where A1(0) and A2(0) are the two axial vector form factors and V(0) is the vector form factor evaluated at q2 =0. By assuming the single pole parameterization for the form factors, we obtain: R2=1.4±0.5±0.3 and Rv=0.9±0.6±0.3.

AB - The dynamics of the decay Ds+ → φe+ve are studied using a sample of 474 events recorded by the CLEO II detector. A three dimensional fit to the decay angles and q2 is performed to extract the ratios of form factors R2=A2(0)/A1(0) and Rv=V(0 )/ A1(0), where A1(0) and A2(0) are the two axial vector form factors and V(0) is the vector form factor evaluated at q2 =0. By assuming the single pole parameterization for the form factors, we obtain: R2=1.4±0.5±0.3 and Rv=0.9±0.6±0.3.

UR - http://www.scopus.com/inward/record.url?scp=0012925418&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0012925418&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(94)90994-6

DO - 10.1016/0370-2693(94)90994-6

M3 - Article

AN - SCOPUS:0012925418

SN - 0370-2693

VL - 337

SP - 405

EP - 410

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

Measurement of the ratios of form factors in the decay D_s⁺ → φe⁺v_e

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