Observation of a narrow charged state at 1876 MeV/c2 Decaying to an exotic combination of Kππ

I. Peruzzi, M. Piccolo, G. J. Feldman, H. K. Nguyen, J. E. Wiss, G. S. Abrams, M. S. Alam, A. M. Boyarski, M. Breidenbach, W. C. Carithers, W. Chinowsky, R. G. Devoe, J. M. Dorfan, G. E. Fischer, C. E. Friedberg, D. Fryberger, G. Goldhaber, G. Hanson, J. A. Jaros, A. D. JohnsonJ. A. Kadyk, R. R. Larsen, D. Lüke, V. Lüth, H. L. Lynch, R. J. Madaras, C. C. Morehouse, J. M. Paterson, M. L. Perl, F. M. Pierre, T. P. Pun, P. Rapidis, B. Richter, R. H. Schindler, R. F. Schwitters, J. Siegrist, W. Tanenbaum, G. H. Trilling, F. Vannucci, J. S. Whitaker

Research output: Contribution to journalArticle

Abstract

We report evidence for the production of a new narrow charged state in e+e- annihilation at a center-of-mass energy of 4.03 GeV. This state, which has a mass of 1876± 15 MeV/c2, is observed in the exotic channel K±π±, but not in the nonexotic channel Kπ+π-. It is produced primarily in association with a system of mass 2.01±0.02 GeV/c2. These characteristics are just those expected of a charged charmed meson.

Original languageEnglish (US)
Pages (from-to)569-571
Number of pages3
JournalPhysical review letters
Volume37
Issue number10
DOIs
StatePublished - Jan 1 1976

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Peruzzi, I., Piccolo, M., Feldman, G. J., Nguyen, H. K., Wiss, J. E., Abrams, G. S., Alam, M. S., Boyarski, A. M., Breidenbach, M., Carithers, W. C., Chinowsky, W., Devoe, R. G., Dorfan, J. M., Fischer, G. E., Friedberg, C. E., Fryberger, D., Goldhaber, G., Hanson, G., Jaros, J. A., ... Whitaker, J. S. (1976). Observation of a narrow charged state at 1876 MeV/c2 Decaying to an exotic combination of Kππ. Physical review letters, 37(10), 569-571. https://doi.org/10.1103/PhysRevLett.37.569