Tetraquark mesons in large-N quantum chromodynamics.
نویسنده
چکیده
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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ورودعنوان ژورنال:
- Physical review letters
دوره 110 26 شماره
صفحات -
تاریخ انتشار 2013