Production of 3pi0 and eta 2pi0 from pi-p Collision in GAMS Experiment

Details Production of 3pi0 and eta 2pi0 from pi-p Collision in GAMS Experiment Production of 3pi0 and eta 2pi0 from pi-p Collision in GAMS Experiment

2000-12-25

arxiv.org/abs/hep-ph/0012326v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

proc. of ``Possible Existence of sigma-Meson and Its Implication to Hadron Physics," YITP, Kyoto, June 12--14, 2000. 6 pages,

Scientific paper

The data on the pi- p --> M0 n, with M0 = pi0 pi0 pi0 or pi0 pi0 eta obtained
in the GAMS experiment may be useful to study the sigma(400--700) and a_1^chi
(1000), which can be taken as chiral partners of pi and rho, respectively. A
preliminary analysis for 3pi0 invariant mass spectra gives a support for the
assumed a_1^chi with a mass of 930 MeV and Gamma = 170 MeV.

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