Measurement of the Ds ± lifetime

G. P. Thomas, E. Gülmez, R. Edelstein, S. Y. Jun, A. I. Kulyavtsev, A. Kushnirenko, P. Mathew, M. Mattson, M. Procario, J. Russ, N. K. Terentyev, J. You, A. M.F. Endler, P. S. Cooper, J. Engelfried, F. G. Garcia, S. Kwane, J. Lache, E. Ramberg, D. SkoweL. Stutte, J. You, A. P. Kozhevnikov, V. P. Kubarovsky, V. F. Kurshetsov, L. G. Landsberg, V. V. Molchanov, S. B. Nurushev, S. V. Petrenko, A. N. Vasiliev, D. V. Vavilov, V. A. Victorov, H. Kangling, Y. Li, C. Maog, Z. Mao, W. Zhaog, S. Zhengg, M. Y. Balatz, G. V. Davidenko, A. V. Evdokimov, M. A. Kubantsev, I. Larin, V. Matveev, A. P. Nilov, V. A. Prutskoi, A. I. Sitnikov, V. S. Verebryusov, V. E. Vishnyakov, U. Dersch, I. Eschrich, H. Krüger, J. Simon, K. Vorwalter, I. S. Filimonov, E. M. Leikin, A. V. Nemitkin, V. I. Rud, G. Alkhazov, A. G. Atamantchouk, N. F. Bondar, V. L. Golovtsov, V. T. Kim, L. M. Kochenda, A. G. Krivshich, N. P. Kuropatkin, V. P. Maleev, P. V. Neoustroev, B. V. Razmyslovich, V. Stepanov, M. Svoiski, N. K. Terentyev, L. N. Uvarov, A. A. Vorobyov, A. G. Atamantchouk, M. Y. Balatz, I. S. Filimonov, I. Giller, M. A. Moinester, A. Ocherashvili, V. Steiner, J. Engelfried, A. Morelos, M. Luksys, V. J. Smith, M. Kaya, E. McCliment, K. D. Nelson, C. Newsom, Y. Onel, E. Ozel, S. Ozkorucuklu, P. Pogodin, L. J. Dauwe, M. Iori, M. Gaspero, L. Emediato, C. O. Escobar, F. G. Garcia, P. Gouffon, T. Lungov, M. Srivastava, R. Zukanovich-Funchal, A. Lambertot, A. Penzo, G. F. Rappazzo, P. Schiavon, U. Dersch, I. Eschrich, C. O. Escobar, I. Konorov, H. Krüger, A. I. Kulyavtsev, C. Mao, T. Lungov, P. Mathew, K. D. Nelson, M. Procario, J. Simon, K. Vorwalter

Research output: Contribution to journalArticlepeer-review

Abstract

We report a precise measurement of the Ds± meson lifetime. The data were taken by the SELEX experiment (E781) spectrometer using 600 GeV/c ∑-, π- and p beams. The measurement has been done using 918 reconstructed Ds±. The lifetime of the Ds± is measured to be 472.5 ± 17.2 ± 6.6 fs, using K*(892)0K± and φπ± decay modes. The lifetime ratio of Ds± to D0 is 1.145 ± 0.049.

Original languageEnglish
Pages (from-to)22-28
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume523
Issue number1-2
DOIs
StatePublished - 20 Dec 2001

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