Structure functions

Roeck, A. De; Thorne, Robert S.

doi:10.1016/j.ppnp.2011.06.001

Cited by 53 publications

(63 citation statements)

References 258 publications

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“…On the one hand it aims to provide an accessible introduction to the theory and phenomenology of parton distributions. In this respect the current review is more concise and pedagogical than other recent reviews [48][49][50] of the same or related topics. On the other hand, it aims to review the current state of the art in PDF determination, to provide an assessment of their accuracy and of the main sources of systematic and theoretical uncertainty on them, and to discuss the impact they have on LHC phenomenology.…”

Section: Parton Distributions In Perturbative Qcdmentioning

confidence: 93%

Progress in the Determination of the Partonic Structure of the Proton

Forte

Watt

2013

Annu. Rev. Nucl. Part. Sci.

128

165

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We review the current state of the art in the determination of the parton substructure of the nucleon, as expressed in terms of parton distribution functions (PDFs), and probed in high-energy lepton-hadron and hadron-hadron collisions, and we assess their implications for current precision collider phenomenology, in particular at the Large Hadron Collider (LHC). We review the theoretical foundations of PDF determination: the way cross sections are expressed in terms of PDFs using perturbative QCD factorization and evolution, the methodology used to extract PDFs from experimental data, and the way in which different physical processes can be used to constrain different PDFs. We summarize current knowledge of PDFs and the limitations in accuracy currently entailed for the computation of hadron collider processes, in particular at the LHC. We discuss the current main sources of theoretical and phenomenological uncertainties, and the direction of progress towards their reduction in the future.

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Section: Parton Distributions In Perturbative Qcdmentioning

confidence: 93%

Progress in the Determination of the Partonic Structure of the Proton

Forte

Watt

2013

Annu. Rev. Nucl. Part. Sci.

128

165

View full text Add to dashboard Cite

show abstract

“…Its performance has been cross-checked with numerical computations. For systematic uncertainty studies, we check the performance against simulations with other PDF models [18,23], such as next-to-leading-order (NLO) CTEQ [20], MSTW [21], and NNPDF [22].…”

Section: Phenomenology Of the Drell-yan Process At The Lhcmentioning

confidence: 99%

Measurement of the weak mixing angle with the Drell-Yan process in proton-proton collisions at the LHC

Chatrchyan¹,

Khachatryan²,

Sirunyan³

et al. 2011

Phys. Rev. D

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A multivariate likelihood method to measure electroweak couplings with the Drell-Yan process at the LHC is presented. The process is described by the dilepton rapidity, invariant mass, and decay angle distributions. The decay angle ambiguity due to the unknown assignment of the scattered constituent quark and antiquark to the two protons in a collision is resolved statistically using correlations between the observables. The method is applied to a sample of dimuon events from proton-proton collisions at ffiffi ffi s p ¼ 7 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity ofprocess, the effective weak mixing angle parameter is measured to be sin 2 eff ¼ 0:2287 AE 0:0020 ðstat:Þ AE 0:0025 ðsyst:Þ. This result is consistent with measurements from other processes, as expected within the standard model.

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“…The partonic number (q(x)) and helicity (∆q(x)) distributions of nucleons have been well determined by global analysis of extensive data mainly from the DIS and Drell-Yan (DY) processes. The universality of nucleon PDFs extracted from various high-energy scattering processes over wide kinematic regions is a great success of perturbative QCD and factorization theorems [2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Accessing proton generalized parton distributions and pion distribution amplitudes with the exclusive pion-induced Drell-Yan process at J-PARC

et al. 2016

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Generalized parton distributions (GPDs) encoding multi-dimensional information of hadron partonic structure appear as the building blocks in a factorized description of hard exclusive reactions.The nucleon GPDs have been accessed by deeply virtual Compton scattering and deeply virtual meson production with lepton beam. A complementary probe with hadron beam is the exclusive pion-induced Drell-Yan process. In this paper, we discuss recent theoretical advances on describing this process in terms of nucleon GPDs and pion distribution amplitudes. Furthermore, we address the feasibility of measuring the exclusive pion-induced Drell-Yan process π − p → µ + µ − n via a spectrometer at the High Momentum Beamline being constructed at J-PARC in Japan. Realization of such measurement at J-PARC will provide a new test of perturbative QCD descriptions of a novel class of hard exclusive reactions. It will also offer the possibility of experimentally accessing nucleon GPDs at large timelike virtuality.

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Structure functions

Cited by 53 publications

References 258 publications

Progress in the Determination of the Partonic Structure of the Proton

Progress in the Determination of the Partonic Structure of the Proton

Measurement of the weak mixing angle with the Drell-Yan process in proton-proton collisions at the LHC

Accessing proton generalized parton distributions and pion distribution amplitudes with the exclusive pion-induced Drell-Yan process at J-PARC

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