Abstract
The properties of hadronic jets in high-energy heavy-ion collisions are discussed and it is found that thermal effects in the QCD fragmentation process can lead to a broader ${p}_{T}$ distribution and an increased strangeness yield. It is speculated that a phase transition in the central region would cause a significant increase of the effective jet temperature. A theoretical estimate of the thermal correction to the quark-pair-production rate in a strong color-electric field is given. It can be expressed as an effective perturbation of the background color-electric field. This result is applicable to QCD-inspired fragmentation models.
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