The light mesons such as pi, rho, omega, f0, and a0 are possible
\ncandidates of magnetic degrees of freedom, if a magnetic dual
\npicture of QCD exists. We construct a linear sigma model to
\ndescribe spontaneous breaking of the magnetic gauge group, in
\nwhich there is a stable vortex configuration of vector and scalar
\nmesons. We numerically examine whether such a string can be
\ninterpreted as the confining string. By using meson masses and
\ncouplings as inputs, we calculate the tension of the string as well as
\nthe strength of the Coulomb force between static quarks. They are
\nfound to be consistent with those inferred from the quarkonium
\nspectrum and the Regge trajectories of hadrons. By using the same
\nLagrangian, the critical temperature of the QCD phase transition is
\nestimated, and a non-trivial flavor dependence is predicted. We also
\ndiscuss a possible connection between the Seiberg duality and the
\nmagnetic model we studied.<\/p>\n","protected":false},"featured_media":0,"template":"","tags":[],"seminar_category":[53],"acf":{"s_now_accepting":true,"s_date_order":"2012-02-22 16:30:00","s_date_end":null,"s_date_text":"","s_text":"Ryuichiro Kitano","s_place":"KMI Science Symposia (ES635)","s_place_other":"","s_categoryother":"","s_poster":"","s_poster2":"","s_slide":""},"yoast_head":"\n