A FURTHER STUDY OF THE CENTRALLY PRODUCED PI(-) AND PI(+)PI(-)PI(+)PI(-) CHANNELS IN PP INTERACTIONS AT 300 AND 450 GEV()PI()C/

Citation
F. Antinori et al., A FURTHER STUDY OF THE CENTRALLY PRODUCED PI(-) AND PI(+)PI(-)PI(+)PI(-) CHANNELS IN PP INTERACTIONS AT 300 AND 450 GEV()PI()C/, Physics letters. Section B, 353(4), 1995, pp. 589-594
Citations number
12
Categorie Soggetti
Physics
Journal title
ISSN journal
03702693
Volume
353
Issue
4
Year of publication
1995
Pages
589 - 594
Database
ISI
SICI code
0370-2693(1995)353:4<589:AFSOTC>2.0.ZU;2-B
Abstract
An analysis of the centrally produced pi(+)pi(-) and pi(+)pi(-)pi(+)pi (-) mass spectra from the WA76 and WA91 experiments is presented, whic h shows that in the pi(+)pi(-)pi(+)pi(-) channel there are two new sta tes, the f(0)(1450) and f(2)(1900). There is another new state in the pi(+)pi(-) channel with M = 1497 +/- 30 MeV and Gamma = 199 +/- 30 MeV , which is compatible with the f(0)(1520) observed by the Crystal Barr el experiment. Another interpretation is discussed, where the 1450 and 1497 GeV structures are explained as being due to an interference eff ect between the f(0)(1365) and f(0)(1520).