Partial wave analysis of the π0π0 system produced in π-p charge exchange collisions

J. Gunter*, A. R. Dzierba, R. Lindenbusch, K. A. Plinske, D. R. Rust, E. Scott, M. R. Shepherd, P. T. Smith, T. Sulanke, S. Teige, A. P. Szczepaniak, S. U. Chung, K. Danyo, R. W. Hackenburg, C. Olchanski, D. P. Weygand, H. J. Willutzki, S. P. Denisov, V. A. Dorofeev, I. A. KachaevV. V. Lipaev, A. V. Popov, D. I. Ryabchikov, Z. Bar-Yam, J. P. Dowd, P. Eugenio, M. Hayek, W. Kern, E. King, N. Shenhav, V. A. Bodyagin, O. L. Kodolova, V. L. Korotkikh, M. A. Kostin, A. I. Ostrovidov, L. I. Sarycheva, N. B. Sinev, I. N. Vardanyan, A. A. Yershov, D. S. Brown, T. K. Pedlar, K. K. Seth, J. Wise, D. Zhao, T. Adams, J. M. Bishop, N. M. Cason, E. I. Ivanov, J. M. LoSecco, J. J. Manak, A. H. Sanjari, W. D. Shephard, D. L. Steinike, S. A. Taegar, D. R. Thompson, G. S. Adams, J. P. Cummings, J. Kuhn, J. Napolitano, M. Nozar, J. A. Smith, D. B. White, M. Witkowski

*Corresponding author for this work

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47 Scopus citations

Abstract

A partial wave analysis of the π0π0 system produced in the charge exchange reaction π- p→π0π0n at an incident momentum of 18.3 GeV/c is presented as a function of the π0π0 invariant mass mπ0π0 and momentum transfer squared |t| from the incident π- to the outgoing π0π0 system. For small values of \t\, the S-wave intensity shows a broad enhancement at low mπ0π0 with a sharp dip in the vicinity of the f0(980). A dip is also observed in the vicinity of the f0(1500). There is a rapid variation of the S to D0 relative phase difference in these mass regions. For large values of |t|, the f0(980) appears as a bump. The f2(1270), observed in D waves, is produced dominantly by π exchange at low values of |t| and a2 exchange at higher values of |t|.

Original languageEnglish (US)
Article number072003
JournalPhysical Review D
Volume64
Issue number7
DOIs
StatePublished - 2001

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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