Publication: Observation of a00(980)-f0(980) mixing
Date
Authors
Tapan, İlhan
Authors
Advisor
Language
Type
Publisher:
Bursa Uludağ Üniversitesi
Journal Title
Journal ISSN
Volume Title
Abstract
We report the first observation of a(0)(0)(980)-f(0)(980) mixing in the decays of J/psi -> phi f(0)(980) -> phi a(0)(0)(980) -> phi eta pi(0) and chi(c1) -> a(0)(0)(980)pi(0) -> f(0)(980)pi(0)->pi(+)pi(-)pi(0), using data samples of 1.31 x 10(9) J/psi events and 4.48 x 10(8) psi (3686) events accumulated with the BESIII detector. The signals of f(0)(980) -> a(0)(0)(980) and a(0)(0)(980) -> f(0)(980) mixing are observed at levels of statistical significance of 7.4 sigma and 5.5 sigma, respectively. The corresponding branching fractions and mixing intensities are measured and the constraint regions on the coupling constants, g(a0K+K-) and g(f0K+K-), are estimated. The results improve the understanding of the nature of a(0)(0)(980) and f(0)(980).
Description
Bu çalışmada sadece Uludağ mensubu yazarların girişleri yapılmıştır.
Source:
Keywords:
Keywords
Physics, Multidisciplinary, Decay