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The bosonized QCD2+QED2 system for quarks with two flavors contains QCD2 andQED2 bound states, with an isoscalar photon at about 25 MeV and an isovector(I=1,I_3=0) photon at about 44 MeV. Consequently, when a quark and an antiquarkat the two ends of a string pulls apart from each other at high energies,hadrons and soft photons will be produced simultaneously in the fragmentationof the string. The production of the QED2 soft photons in association withhadrons may explain the anomalous soft photon data in hadron-hadron collisionsand e+e- annihilations at high energies.

Anomalous Soft Photons associated with Hadron Production in String Fragmentation