p̄d-annihilation at rest into π+ π- π- pspectator

A. Abele, J. Adomeit, C. Amsler, C. A. Baker, B. M. Barnett, C. J. Batty, M. Benayoun, A. Berdoz, S. Bischoff, P. Blüm, K. Braune, D. V. Bugg, T. Case, O. Cramer, K. M. Crowe, T. Degener, N. Djaoshvili, M. Doser, W. Dünnweber, D. EngelhardtM. A. Faessler, P. Giarritta, R. P. Haddock, F. H. Heinsius, M. Heinzelmann, A. Herbstrith, M. Herz, N. P. Hessey, P. Hidas, C. Hodd, C. Holtzhaußen, D. Jamnik, H. Kalinowsky, P. Kammel, J. Kisiel, E. Klempt, H. Koch, M. Kunze, U. Kurilla, M. Lakata, R. Landua, H. Matthäy, R. McCrady, J. Meier, C. A. Meyer, R. Ouared, K. Peters, B. Pick, C. Pietra, C. N. Pinder, M. Ratajczak, C. Regenfus, W. Roethel, P. Schmidt, R. Seibert, S. Spanier, H. Stöck, C. Straßburger, U. Strohbusch, M. Suffert, J. S. Suh, U. Thoma, M. Tischhäuser, I. Uman, C. Völcker, S. Wallis-Plachner, D. Walther, U. Wiedner, K. Wittmack, B. S. Zou

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19 Citations (Scopus)

Abstract

A study of antiproton annihilation in liquid deuterium into π+ π- π- and a spectator proton is presented. For a long time this reaction resisted a description by final state interactions which is surprising (and disturbing) given the success of the final state interaction model in other annihilation reactions. It is shown that the introduction of ρ(1450) is essential to get a reasonable description of the measured Dalitz plot. This resonance was never tried in previous attempts to understand this data. A possible isospin-2-ππ S-wave contribution was tested, but no evidence was found for such a contribution.

Original languageEnglish
Pages (from-to)275-280
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume450
Issue number1-3
DOIs
Publication statusPublished - Jan 1 1999

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Abele, A., Adomeit, J., Amsler, C., Baker, C. A., Barnett, B. M., Batty, C. J., Benayoun, M., Berdoz, A., Bischoff, S., Blüm, P., Braune, K., Bugg, D. V., Case, T., Cramer, O., Crowe, K. M., Degener, T., Djaoshvili, N., Doser, M., Dünnweber, W., ... Zou, B. S. (1999). p̄d-annihilation at rest into π+ π- π- pspectator. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 450(1-3), 275-280. https://doi.org/10.1016/S0370-2693(99)00090-8