European Organization for Nuclear Research Light Mesons with Open and Hidden Strangeness
نویسندگان
چکیده
Mesons are the most fundamental objects allowing a study of quark and gluon con-nement and, more generally, the strong interaction at low energy. The spectroscopy of light mesons is a challenge: the glueballs predicted on the basis of Quantum Chromodynamics are expected amidst the light mesons. However, identifying light mesons and determining their quantum numbers are particularly diicult tasks due to their extremely short lifetimes. The strangeness quantum number is easy to detect and indicates the presence of a strange quark. Thus the eld of (openly) strange mesons is relatively well explored. However that of mesons with hidden strangeness, more directly relevant to the glueball search, still needs more experimental input, in particular from studies of nal states with kaon{antikaon pairs.
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