Medium-induced gluon radiation in hard forward parton scattering in the saturation formalism

Abstract : We derive the medium-induced, coherent gluon radiation spectrum associated with the hard forward scattering of an energetic parton off a nucleus, in the saturation formalism and within the Gaussian approximation for the relevant correlators of Wilson lines. The calculation reproduces the simple expression for the spectrum previously obtained in the opacity expansion formalism, and rigorously specifies its validity range. The connection between the calculations in the opacity expansion and saturation formalisms is made apparent. This study may serve as a first step in order to implement consistently induced coherent energy loss and gluon shadowing in `saturation-based models' of hadron nuclear suppression in proton-nucleus collisions.
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Physical Review D, American Physical Society, 2017, 95, pp.014014. 〈10.1103/PhysRevD.95.014014〉
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http://hal.in2p3.fr/in2p3-01317507
Contributeur : Sylvie Flores <>
Soumis le : mercredi 18 mai 2016 - 14:19:37
Dernière modification le : mardi 16 janvier 2018 - 14:40:09

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S. Munier, S. Peigné, E. Petreska. Medium-induced gluon radiation in hard forward parton scattering in the saturation formalism. Physical Review D, American Physical Society, 2017, 95, pp.014014. 〈10.1103/PhysRevD.95.014014〉. 〈in2p3-01317507〉

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