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(p)over-bar-d-annihilation at rest into pi(+)pi(-)pi(-)p(spectator)

Authors

Abele, A Adomeit, J Amsler, C Baker, CA Barnett, BM Batty, CJ Benayoun, M Berdoz, A Bischoff, S Blum, P Braune, K Bugg, DV Case, T Cramer, O Crowe, KM Degener, T Djaoshvili, N Doser, M Dunnweber, W Engelhardt, D Faessler, MA Giarritta, P Haddock, RP Heinsius, FH Heinzelmann, M Herbstrith, A Herz, M Hessey, NP Hidas, P Hodd, C Holtzhaussen, C Jamnik, D Kalinowsky, H Kammel, P Kisiel, J Klempt, E Koch, H Kunze, M Kurilla, U Lakata, M Landua, R Matthay, H McCrady, R Meier, J Meyer, CA Ouared, R Peters, K Pick, B Pietra, C Pinder, CN Ratajczak, M Regenfus, C Roethel, W Schmidt, P Seibert, R Spanier, S Stock, H Strassburger, C Strohbusch, U Suffert, M Suh, JS Thoma, U Tischhauser, M Uman, I Volcker, C Wallis-Plachner, S Walther, D Wiedner, U Wittmack, K Zou, BS

Citation

A. Abele et al., (p)over-bar-d-annihilation at rest into pi(+)pi(-)pi(-)p(spectator), PHYS LETT B, 450(1-3), 1999, pp. 275-280

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICS LETTERS B

ISSN journal

03702693 → ACNP

Volume

450

Issue

1-3

Year of publication

1999

Pages

275 - 280

Database

ISI

SICI code

0370-2693(19990318)450:1-3<275:(ARIP>2.0.ZU;2-#

Abstract

A study of antiproton annihilation in liquid deuterium into pi(+)pi(-)pi(-) and a spectator proton is presented. For a long time this reaction resiste d a description by final state interactions which is surprising (and distur bing) given the success of the final state interaction model in other annih ilation reactions. It is shown that the introduction of p(1450) is essentia l to Set a reasonable description of the measured Dalitz plot. This resonan ce was never tried in previous attempts to understand this data. A possible isospin-2-pi-pi S-wave contribution was tested, but no evidence was found for such a contribution. (C) 1999 Elsevier Science B.V. All rights reserved .