منابع مشابه
On Scalar Meson Dominance in Semi- and Non-Leptonic Weak Pseudoscalar Meson Decays
Introduction. The theoretical description of leptonic, semiand non-leptonic weak decays of pseudoscalar mesons has been known to be extremly rewarding since at least 5 decades [1] in particular due to technical and numerical challenges in the description of strong interactions on the basis Quantum Chromodynamics (QCD) [2]. The experimental and theoretical study of non-leptonic K-meson decays ha...
متن کاملVector meson dominance and the ρ meson
We discuss the properties of vector mesons, in particular the ρ 0 , in the context of the Hidden Local Symmetry (HLS) model. This provides a unified framework to study several aspects of the low energy QCD sector. Firstly, we show that in the HLS model the physical photon is massless, without requiring off field diagonalization. We then demonstrate the equivalence of HLS and the two existing re...
متن کاملNote on Scalar Mesons
I. Introduction: The scalar mesons are especially important to understand because they have the same quantum numbers as the vacuum (J P C = 0 ++). Therefore they can condense into the vacuum and break a symmetry such as a global chiral U (N f) × U (N f). The details of how this symmetry breaking is implemented in Nature is one of the most profound problems in particle physics. In contrast to th...
متن کاملA note on convex stochastic dominance
In this paper, we extend Fishburn’s convex stochastic dominance theorem to include any distribution function. This paper also considers risk takers as well as risk averters, and discusses third order stochastic dominance. We apply separation and representation theorems to obtain a concise alternative proof of the theorem. Our results are used to extend a theorem of Bawa et.al. on comparison bet...
متن کاملScalar Meson Photoproduction
The light-quark non-strange scalar mesons a0(980), f0(980), f0(1370), a0(1450), f0(1500) and f0(1710) are of great interest as there is no generally accepted view of their structure which can encompass qqq̄q̄, molecular, qq̄ and glueball states in various combinations. It has been shown previously that the radiative decays of the scalar mesons to ρ and ω are a good probe of their structure and pro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chinese Physics C
سال: 2019
ISSN: 1674-1137,2058-6132
DOI: 10.1088/1674-1137/43/10/103105