On mass spectrum in ’t Hooft’s 2D model of mesons
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چکیده
We study ’t Hooft’s integral equation determining the meson masses Mn in multicolor QCD2. In this note we concentrate on developing an analytic method, and restrict our attention to the special case of quark masses m1 = m2 = g/ √ π. Among our results is systematic large-n expansion, and exact sum rules for Mn. Although we explicitly discuss only the special case, the method applies to the general case of the quark masses, and we announce some preliminary results for m1 = m2 (Eqs. (6.1) and (6.3)).
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تاریخ انتشار 2009