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We consider synchrotron-like radiation in QCD by generalizing Schwinger'streatment of quantum synchrotron radiation in QED to the case of a constantchromomagnetic field. We suggest a novel mechanism for {\em jet quenching} inheavy ion collisions, whereby high-$p_t$ partons get depleted through strong(classical) color fields. The latters are encountered in the color glasscondensate or in the form of expanding shells of exploding sphalerons. Unlikebremsstrahlung radiation through multiple soft rescattering, synchrotronradiation converts a jet into a wide shower of soft gluons. We estimate theenergy loss through this mechanism and suggest that it contributessignificantly to the unexpectedly strong jet quenching observed at RHIC

Jet quenching in high energy heavy ion collisions by QCD synchrotronlike radiation