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Partial wave analysis of the pi(0) pi(0) system produced in pi(-)p charge exchange collisions - art. no. 072003

Authors

Gunter, J Dzierba, AR Lindenbusch, R Plinske, KA Rust, DR Scott, E Shepherd, MR Smith, PT Sulanke, T Teige, S Szczepaniak, AP Chung, SU Danyo, K Hackenburg, RW Olchanski, C Weygand, DP Willutzki, HJ Denisov, SP Dorofeev, VA Kachaev, IA Lipaev, VV Popov, AV Ryabchikov, DI Bar-Yam, Z Dowd, JP Eugenio, P Hayek, M Kern, W King, E Shenhav, N Bodyagin, VA Kodolova, OL Korotkikh, VL Kostin, MA Ostrovidov, AI Sarycheva, LI Sinev, NB Vardanyan, IN Yershov, AA Brown, DS Pedlar, TK Seth, KK Wise, J Zhao, D Adams, T Bishop, JM Cason, NM Ivanov, EI LoSecco, JM Manak, JJ Sanjari, AH Shephard, WD Steinike, DL Taegar, SA Thompson, DR Adams, GS Cummings, JP Kuhn, J Napolitano, J Nozar, M Smith, JA White, DB Witkowski, M

Citation

J. Gunter et al., Partial wave analysis of the pi(0) pi(0) system produced in pi(-)p charge exchange collisions - art. no. 072003, PHYS REV D, 6407(7), 2001, pp. 2003

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW D

ISSN journal

05562821 → ACNP

Volume

6407

Issue

Year of publication

2001

Database

ISI

SICI code

0556-2821(20011001)6407:7<2003:PWAOTP>2.0.ZU;2-Q

Abstract

A partial wave analysis of the pi (0)pi (0) system produced in the charge e xchange reaction pi (-)p --> pi (0)pi (0)n at an incident momentum of 18.3 GeV/c is presented as a function of the pi (0)pi (0) invariant mass m(pi0 p i0) and momentum transfer squared \t \ from the incident pi (-) to the outg oing pi (0)pi (0) system. For small values of \t \, the S-wave intensity sh ows a broad enhancement at low m(pi0 pi0) with a sharp dip in the vicinity of the f(0)(980). A dip is also observed in the vicinity of the f(0)(1500). There is a rapid variation of the S to D-0 relative phase difference in th ese mass regions. For large values of \t \, the f(0)(980) appears as a bump . The f(2)(1270), observed in D waves, is produced dominantly by pi exchang e at low values of \t \ and a(2) exchange at higher values of \t \.