Study of antiproton annihilation on neutrons into ωπ-π0

C. Amsler, A. V. Anisovich, C. A. Baker, B. M. Barnett, C. J. Batty, M. Benayoun, P. Blüm, K. Braune, T. Case, V. Credé, K. M. Crowe, M. Doser, W. Dünnweber, D. Engelhardt, M. A. Faessler, R. P. Haddock, F. H. Heinsius, N. P. Hessey, P. Hidas, D. JamnikH. Kalinowsky, P. Kammel, J. Kisiel, E. Klempt, H. Koch, M. Kunze, U. Kurilla, R. Landua, H. Matthäy, C. A. Meyer, F. Meyer-Wildhagen, R. Ouared, K. Peters, B. Pick, M. Ratajczak, C. Regenfus, J. Reinnarth, A. Sarantsev, U. Strohbusch, M. Suffert, J. S. Suh, U. Thoma, I. Uman, S. Wallis-Plachner, D. Walther, Ulrich Wiedner, K. Wittmack

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6 Citations (Scopus)

Abstract

Data are presented on antiproton neutron annihilation at rest into ωπ-π0 taken with the Crystal Barrel detector at LEAR (CERN) using a liquid deuterium target. The partial wave analysis shows evidence for at least two ωπ vector resonances above the ρ(770) ground-state. Possible evidence for a third ρ′ state with a mass around 1180 MeV is discussed. The results are compared to model dependent predictions concerning the nature of the ρ′ states.

Original languageEnglish
Pages (from-to)130-146
Number of pages17
JournalNuclear Physics A
Volume740
Issue number1-2
DOIs
Publication statusPublished - Aug 9 2004

Keywords

  • Antiproton
  • Spectroscopy
  • Vector mesons

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Amsler, C., Anisovich, A. V., Baker, C. A., Barnett, B. M., Batty, C. J., Benayoun, M., Blüm, P., Braune, K., Case, T., Credé, V., Crowe, K. M., Doser, M., Dünnweber, W., Engelhardt, D., Faessler, M. A., Haddock, R. P., Heinsius, F. H., Hessey, N. P., Hidas, P., ... Wittmack, K. (2004). Study of antiproton annihilation on neutrons into ωπ-π0. Nuclear Physics A, 740(1-2), 130-146. https://doi.org/10.1016/j.nuclphysa.2004.05.004