Study of f(0) decays into four neutral pions

Citation
A. Abele et al., Study of f(0) decays into four neutral pions, EUR PHY J C, 19(4), 2001, pp. 667-675
Citations number
33
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
1434-6044 → ACNP
Volume
19
Issue
4
Year of publication
2001
Pages
667 - 675
Database
ISI
SICI code
1434-6044(200103)19:4<667:SOFDIF>2.0.ZU;2-L
Abstract
A simultaneous analysis of two different 5 pi final states from (p) over ba rN annihilation at rest is used to study the decays of isoscalar 0(++) stat es into 4 pi (0). The data demand two scalar states, the f(0)(1370) with m = 1395 +/- 40 MeV/c(2), Gamma = 275 +/- 55 MeV/c(2) and the f(0)(1500) with mass and width compatible with previous findings. Apart from the dominant scalar intensity, the pi (1300) plays an important role in the 5 pi dynamic s. Wic find a mass of m = 1375 +/- 40 MeV/c(2) and a width of Gamma = 268 /- 50 MeV/c(2) with a dominant decay into rho pi. The (pi pi)(s)pi decay of the pi (1300) is less than 15% of its rho pi decay.