6533b854fe1ef96bd12ae156
RESEARCH PRODUCT
Particle Production in the Color Class Condensate: from electron-proton DIS to proton-nucleus collisions
Tuomas LappiTuomas LappiHeikki Mäntysaarisubject
Nuclear and High Energy PhysicsParticle physicsProtonNuclear TheoryHadronNuclear TheoryFOS: Physical sciences01 natural sciences7. Clean energyColor-glass condensateNuclear physicsNuclear Theory (nucl-th)Cross section (physics)High Energy Physics - Phenomenology (hep-ph)0103 physical sciences010306 general physicsNuclear ExperimentPhysicsLarge Hadron Colliderta114010308 nuclear & particles physicsScatteringHERADeep inelastic scatteringHigh Energy Physics - PhenomenologyPhysics::Accelerator Physicsdescription
We study single inclusive hadron production in proton-proton and proton-nucleus collisions in the CGC framework. The parameters in the calculation are obtained by fitting electron-proton deep inelastic scattering data. The obtained dipole-proton amplitude is generalized to dipole-nucleus scattering without any additional nuclear parameters other than the Woods-Saxon distribution. We show that it is possible to use an initial condition without an anomalous dimension and still obtain a good description of the HERA inclusive cross section and LHC single particle production measurements. We argue that one must consistently use the proton transverse area as measured by a high virtuality probe in DIS also for the single inclusive cross section in proton-proton and proton-nucleus collisions, and obtain a nuclear modification factor $R_{pA}$ that at midrapidity approaches unity at large momenta and at all energies.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-11-28 |