Tetraquark Mesons in Large-NQuantum Chromodynamics

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Tetraquark mesons in large-N quantum chromodynamics.

It is argued that exotic mesons consisting of two quarks and two antiquarks are not ruled out in quantum chromodynamics with a large number N of colors, as generally thought. Tetraquarks of one class are typically long-lived, with decay rates proportional to 1/N.

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ژورنال

عنوان ژورنال: Physical Review Letters

سال: 2013

ISSN: 0031-9007,1079-7114

DOI: 10.1103/physrevlett.110.261601