QCD corrections to parton-parton scattering processes

Aversa, F.; Chiappetta, P.; Greco, Mario; Guillet, J. Ph.

doi:10.1016/0550-3213(89)90288-5

Cited by 356 publications

(358 citation statements)

References 23 publications

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“…[5] for details. The calculations are done with the INCNLO-package 2 [8] and CTEQ6M [9] free proton PDFs with the EPS09s modifications, and with three fragmentation functions (FFs): KKP [10], AKK [11], and fDSS [12]. Our result for the corresponding minimum-bias ratio R π 0 pPb (p T ) (left panel of figure 17 in Ref.…”

Section: Applicationsmentioning

confidence: 99%

EPS09s and EKS98s: Impact parameter dependent nPDF sets

et al. 2013

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In our recent study we have determined two new spatially dependent nuclear PDF (nPDF) sets, EPS09s and EKS98s. With these, the hard-process cross-sections can be calculated in different centrality classes consistently with the globally analyzed nPDFs for the first time. The sets were determined by exploiting the A-systematics of the globally fitted nPDF sets, EPS09 and EKS98. For the spatial dependence of the nPDFs we used a power series ansatz in the nuclear thickness function T A . In this flash talk we introduce the framework, and present our NLO EPS09s-based predictions for the nuclear modification factor in four centrality classes for inclusive neutral pion production in p+Pb collisions at the LHC and for inclusive prompt photon production in d+Au collisions at RHIC at midrapidity.

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Section: Applicationsmentioning

confidence: 99%

EPS09s and EKS98s: Impact parameter dependent nPDF sets

et al. 2013

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“…We have compared numerically to the code presented in [30] finding excellent agreement. This provides a very important test on our calculation and, furthermore, on the structure of the code that we will also use to compute the polarized cross section.…”

Section: Figmentioning

confidence: 63%

“…Finally, it should be noticed that an analytical NLO calculation exists for the case of unpolarized hadronic collisions [30] since long time. We have compared numerically to the code presented in [30] finding excellent agreement.…”

Section: Figmentioning

confidence: 99%

Next-to-leading order QCD corrections to one-hadron production in polarizedppcollisions at BNL RHIC

Florian

2003

Phys. Rev. D

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We calculate the next-to-leading order QCD corrections to the spin-dependent cross section for single-inclusive hadron production in hadronic collisions. This process will be soon studied experimentally at RHIC, providing a tool to unveil the polarized gluon distribution ∆g. We observe a considerably improvement in the perturbative stability for both unpolarized and polarized cross sections. The NLO corrections are found to be non-trivial, resulting in a reduction of the asymmetry.

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“…We use the KKP fragmentation functions [30] here, but we have checked that with the newer ones, AKK08 [31] or nDSS [32,33], the results would be the same. The NLO code by Aversa et al [34] from the INCNLO [35] compilation has been utilized after changing the order of integrations to speed up the computation (see [1]). Interestingly, and importantly, a good and essentially tensionless fit of these RHIC data is obtained simultaneously with the DIS and DY data.…”

Section: Results From Eps09mentioning

confidence: 99%

Nuclear PDFs at NLO – status report and review of the EPS09 results

2011

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We review the current status of the global DGLAP analysis of nuclear parton distribution functions, nPDFs, focusing on the recent EPS09 analysis [1], whose output, EPS09NLO, is the best-constrained NLO nPDF set on the market. Collinear factorization is found to work very well in the kinematical region studied. With the error sets released in the EPS09 package one can compute how the nPDF-related uncertainties propagate into factorizable nuclear hard-process cross sections. A comparison with the other existing NLO nPDF sets is shown, and the BRAHMS forward-η hadron data from d+Au collisions are discussed in the light of the EPS09 nPDFs and their error sets.

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QCD corrections to parton-parton scattering processes

Cited by 356 publications

References 23 publications

EPS09s and EKS98s: Impact parameter dependent nPDF sets

EPS09s and EKS98s: Impact parameter dependent nPDF sets

Next-to-leading order QCD corrections to one-hadron production in polarizedppcollisions at BNL RHIC

Nuclear PDFs at NLO – status report and review of the EPS09 results

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