منابع مشابه
Topics in Meson Spectroscopy *
Meson spectroscopy is an extremely broad subject, covering ππ scattering with √ s < 1 GeV to the heaviest bb̄ states with masses greater than 10 GeV [1,2]. The goal at both ends of the energy scale is to understand QCD in the nonperturbative regime. It is impossible to do justice to such a large body of work in a short talk so I restrict myself to a few selected topics. Many other aspects of mes...
متن کاملComplex Meson Spectroscopy
We do meson spectroscopy by studying the behavior of S-matrix poles in the complexenergy plane, as a function of the coupling strength for P0 quark-pair creation. Thereto, a general formula for non-exotic hadron-hadron scattering involving arbitrary quark confinement is used, which can be applied to all flavors. We find two distinct types of poles, which we call confinement and continuum poles,...
متن کاملMeson Spectroscopy at COMPASS
QCD predicts four quark states or gluonic excitations like hybrids or glueballs to contribute to the meson spectrum in addition to qq pair configurations. The most promising way to identify such states is the search for JPC quantum number combinations which are forbidden in the constituent quark model. The fixed target COMPASS experiment at CERN offers the opportunity to search for such states ...
متن کاملLight Meson Spectroscopy
We survey the current status of light meson spectroscopy. We begin with a general introduction to meson spectroscopy and and its importance in understanding the physical states of Quantum Chromo Dynamics (QCD). Phemenological models of hadron spectroscopy are described with particular emphasis on the constituent quark model and the qualitative features it predicts for the meson spectrum. We nex...
متن کاملIssues in Light Meson Spectroscopy: the Case for Meson Spectroscopy at Cebaf
I review some outstanding issues in meson spectroscopy. The most important qualitative issue is whether hadrons with explicit gluonic degrees of freedom exist. To answer this question requires a much better understanding of conventional qq̄ mesons. I therefore begin by examining the status of conventional meson spectroscopy and how the situation can be improved. The expected properties of gluoni...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2003
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(03)90640-2