Predictions for p+Pb at 5.02A TeV to test initial state nuclear shadowing at the Large Hadron Collider

G. G. Barnafoldi; J. Barrette; M. Gyulassy; P. Levai; G. Papp; M. Petrovici; V. Topor Pop

Predictions for p+Pb at 5.02A TeV to test initial state nuclear shadowing at the Large Hadron Collider

Nuclear Theory 2012-12-12 v2 High Energy Physics - Phenomenology Nuclear Experiment

Authors: G. G. Barnafoldi , J. Barrette , M. Gyulassy , P. Levai , G. Papp , M. Petrovici , V. Topor Pop

Abstract

Collinear factorized perturbative quantum chromodynamics (pQCD) model predictions are compared for $p+{\rm Pb}$ at 5.02 $A$ TeV to test nuclear shadowing of parton distribution at the Large Hadron Collider (LHC). The pseudorapidity distribution the nuclear modification factor (NMF), $R_{p{\rm Pb}}(y=0,p_T<20\;{\rm GeV}/{\it c}) = dn_{p{\rm Pb}} /(N_{\rm coll}(b)dn_{pp})$ and the pseudorapidity asymmetry $Y_{asym}^{h}(p_T)=R^h_{pPb}(p_T, \eta<0)/R^h_{pPb}(p_T,\eta>0)$ are computed using {\small HIJING/B\=B v2.0 model} and a pQCD improved parton model kTpQCD\_v2.0 which embedded generalized parton distribution functions (PDFs). These results are updated calculations of those presented in Phys. Rev. C {\bf 85}, 024903 (2012).

Keywords

p+Pb collisions nuclear shadowing perturbative QCD parton distribution functions Large Hadron Collider HIJING model nuclear modification factor

Cite

@article{arxiv.1211.2256,
  title  = {Predictions for p+Pb at 5.02A TeV to test initial state nuclear shadowing at the Large Hadron Collider},
  author = {G. G. Barnafoldi and J. Barrette and M. Gyulassy and P. Levai and G. Papp and M. Petrovici and V. Topor Pop},
  journal= {arXiv preprint arXiv:1211.2256},
  year   = {2012}
}

Comments

16 pages, 7 figures, contribution at 8th Workshop on "High p_T physics at the LHC", 20-24 October 2012, Wuhan, China version 2, 3 new figures added, typos corrected, new references

Predictions for p+Pb at 5.02A TeV to test initial state nuclear shadowing at the Large Hadron Collider

Abstract

Keywords

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