Study of f(0) decays into four neutral pions

Authors
Abele, A Adomeit, J Amsler, C Baker, CA Barnett, BM Battey, J Benayoun, M Bischoff, S Blum, P Braune, K Case, T Crede, V Crow, KM Degener, T Doser, M Dunnweber, W Engelhardt, D Faessler, MA Giarritta, P Haddock, RP Heinsius, FH Heinzelmann, M Herbstrith, A Hessey, NP Hidas, P Holtzhaussen, C Jamnik, D Kalinowsky, H Kammel, P Kisiel, J Klempt, E Koch, H Kunze, M Kurilla, U Lakata, M Landua, R Matthay, H Meyer, CA Meyer-Wildhagen, F Montanet, L Ouared, R Peters, K Pick, B Ratajczak, M Regenfus, C Roethel, W Spanier, S Stock, H Strohbusch, U Suffert, M Suh, JS Thoma, U Tischhauser, M Uman, I Wallis-Plachner, S Walther, D Wiedner, U Wittmack, K
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
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
14346044 → 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.