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. 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, Tomasz Skwarnicki, R. Stroynowski, I. Volobouev, G. Wei, P. Zadorozhny, Marina Artuso, M. Gao, M. Goldberg, D. He, N. Horwitz, G. C. Moneti, R. Mountain, F. Muheim, Y. Mukhin, S. Playfer, Y. Rozen, Sheldon 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

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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.

Original languageEnglish (US)
Pages (from-to)405-410
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume337
Issue number3-4
DOIs
StatePublished - Oct 13 1994

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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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 Ds + → φe+ve Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 337(3-4), 405-410. https://doi.org/10.1016/0370-2693(94)90994-6