Forward particle production in the CGC formalism: Average transverse momentum and τ scaling

Duraes F.O.; Giannini A.V.; Navarra F.S.; Goncalves V.P.B.

Forward particle production in the CGC formalism: Average transverse momentum and τ scaling

Tipo

Artigo de evento

Data de publicação

2016

Periódico

Journal of Physics: Conference Series

Citações (Scopus)

0

Autores

Duraes F.O.
Giannini A.V.
Navarra F.S.
Goncalves V.P.B.

Resumo

© Published under licence by IOP Publishing Ltd.In this work we have used the Color Glass Condensate (CGC) formalism of forward particle production to describe the transverse momentum spectra of charged particles in proton-lead collisions at the LHC. We have also investigated the rapidity dependence of the average transverse momentum, < pT >, and the so called scaling variable, < τ = P2 T/Q2 s >, where Qs represents the saturation scale of these processes. We have computed the ratios of the first quantity at a given rapidity y to the value at y = 0 (going from y = 0 towards the proton fragmentation region) at the LHC energies. The ratios of the second quantity have been computed to the normalized τ distributions. Our analysis, based on gluon saturation and geometrical scaling, shows that these ratios decrease strongly with y above midrapidities and increase slightly with the energy. We briefly discuss the implications of our results and present predictions for the forthcoming LHC data.

Assuntos Scopus

Color glass condensates , Geometrical scaling , Lead collisions , Particle production , Saturation scale , Scaling variables , Transverse momenta