logo cctval 2018 logo utfsm 2018

header area inv 1

area1 480

area1 320

Theoretical Particle Physics

Publications

Prompt photon production and photon-hadron correlations at RHIC and the LHC from the Color Glass Condensate

Publicaciones

Prompt photon production and photon-hadron correlations at RHIC and the LHC from the Color Glass Condensate

Research areas:

Física Teórica de Partículas

Year:

2012

Type of Publication:

In Proceeding

Authors:

  • Jamal Jalilian-Marian
  • Amir Rezaeian

Journal:

Phys.Rev.

Volume:

D86

Pages:

17

Abstract:

We investigate inclusive prompt photon and semi-inclusive prompt photon-hadron production in high energy proton-nucleus collisions using the Color Glass Condensate (CGC) formalism which incorporates non-linear dynamics of gluon saturation at small x via Balitsky-Kovchegov equation with running coupling. For inclusive prompt photon production, we rewrite the cross-section in terms of direct and fragmentation contributions and show that the direct photon (and isolated prompt photon) production is more sensitive to gluon saturation effects. We then analyze azimuthal correlations in photon-hadron production in high energy proton-nucleus collisions and obtain a strong suppression of the away-side peak in photon-hadron correlations at forward rapidities, similar to the observed mono-jet production in deuteron-gold collisions at forward rapidity at RHIC. We make predictions for the nuclear modification factor R_{p(d)A} and photon-hadron azimuthal correlations in proton(deuteron)-nucleus collisions at RHIC and the LHC at various rapidities.

[Volver]