Dalitz plot analysis of the decay D+ → K- π+ π+ and indication of a low-mass scalar K π resonance

S. Amato, P. Gagnon, S. Devmal, G. Herrera, J. A. Appel, S. Banerjee, R. A. Burnstein, D. Mihalcea, G. Blaylock, E. M. Aitala*, J. Wiener, A. Fernandez, C. Göbel, C. J. Solano Salinas, N. K. Copty, P. R. Burchat, D. Ashery, J. C. Anjos, I. Bediaga, S. B. BrackerR. H. Milburn, S. Radeztsky, T. Carter, H. S. Carvalho, L. M. Cremaldi, C. Darling, K. Denisenko, G. F. Fox, K. Gounder, A. M. Halling, G. Hurvits, C. James, P. A. Kasper, S. Kwan, D. C. Langs, J. Leslie, B. Lundberg, J. Magnin, A. Massafferri, S. Maytal-Beck, B. Meadows, J. R.T. De Mello Neto, J. M. De Miranda, A. Napier, A. Nguyen, A. B. D'Oliveira, K. O'Shaughnessy, K. C. Peng, L. P. Perera, M. V. Purohit, B. Quinn, A. Rafatian, N. W. Reay, J. J. Reidy, A. C. Dos Reis, H. A. Rubin, D. A. Sanders, A. K.S. Santha, A. F.S. Santoro, A. J. Schwartz, M. Sheaff, R. A. Sidwell, A. J. Slaughter, M. D. Sokoloff, N. R. Stanton, R. J. Stefanski, K. Stenson, D. J. Summers, S. Takach, K. Thorne, A. K. Tripathi, S. Watanabe, R. Weiss-Babai, N. Witchey, E. Wolin, S. M. Yang, D. Yi, S. Yoshida, R. Zaliznyak, C. Zhang

*Corresponding author for this work

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Abstract

A Dalitz-plot analysis of the Cabibbo-favored decay D+ → K- π+ π+ using data from Fermilab experiment was presented. The experiment was based on the Fermilab E791 sample of 2×1010 events produced from interactions of a 500 GeV/c π- beam with five thin target foils. Results provided informations on the scalar sector in hadron spectroscopy.

Original languageEnglish
Article number121801
Pages (from-to)1218011-1218015
Number of pages5
JournalPhysical Review Letters
Volume89
Issue number12
StatePublished - 16 Sep 2002

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