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22-27 March 2015
Hotel do Bosque
Brazil/East timezone

## Forward particle production in the CGC formalism: average transverse momentum and $\tau$ scaling

Not scheduled
3h 30m
Hotel do Bosque

#### Hotel do Bosque

Rodovia Mário Covas (Rio-Santos) BR - 101 Sul, Km 533, Angra dos Reis, RJ, Brazil
Poster Relativistic heavy-ion reactions - new data, analyses and models

### Speaker

Prof. F. O. durães (Escola de Engenharia, Universidade Presbiteriana Mackenzie (UPM), SP, Brazil)

### Description

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, $< p_{T} >$, and the so called scaling variable, $< \tau = p^{2}_{T}/Q^{2}_{s} >$, where $Q_{s}$ represents the saturation scale of these processes. We compute the ratios of these quantities at a given rapidity $y$ to the value at $y = 0$, going from $y = 0$ towards the proton fragmentation region. Our analysis, based on (gluon) saturation and geometrical scaling, shows that these ratios decrease strongly with $y$ (above midrapidities) and decrease slightly with the energy. We briefly discuss the implications of our results and present predictions for the forthcoming LHC data.

### Primary author

Prof. F. O. durães (Escola de Engenharia, Universidade Presbiteriana Mackenzie (UPM), SP, Brazil)

### Co-authors

Ms A. V. giannini (Instituto de Física, Universidade de São Paulo (USP), SP, Brazil) Prof. F. S. Navarra (Instituto de Física, Universidade de São Paulo (USP), SP, Brazil) Prof. V. P. Gonçalves (Instituto de Física e Matemática, Universidade Federal de Pelotas (UFPel), RS, Brazil)

### Presentation Materials

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