Formation of a single pion in antiproton-proton collisions at an incident momentum of 22.4 GeV/c

Authors
Boos, EG Temiraliev, T Pokrovsky, NS Samoilov, VV Lonskaya, GE
Citation
Eg. Boos et al., Formation of a single pion in antiproton-proton collisions at an incident momentum of 22.4 GeV/c, PHYS ATOM N, 62(7), 1999, pp. 1193-1199
Citations number
12
Categorie Soggetti
Physics
Journal title
PHYSICS OF ATOMIC NUCLEI
ISSN journal
10637788 → ACNP
Volume
62
Issue
7
Year of publication
1999
Pages
1193 - 1199
Database
ISI
SICI code
1063-7788(199907)62:7<1193:FOASPI>2.0.ZU;2-4
Abstract
The emission of a single pion in antiproton-proton interactions induced by 22.4GeV/c antiprotons is found to proceed through the formation and decay o f (anti)nucleon resonances. The effective-mass spectrum of the pion-nucleon system is dominated by the delta isobar below 1.35 GeV/c(2) and by the N-1 525 and N-1688 resonances above 1.35 GeV/c2. The squared-momentum-transfer distributions for the formation of isospin-3/2 and isospin-1/2 resonances s how exponential forms with slope parameters of some 10 and 5 (GeV/c)(-2), r espectively.