The quark and gluon structure of the proton

Perez, E.; Rizvi, E.

doi:10.1088/0034-4885/76/4/046201

Cited by 48 publications

(50 citation statements)

References 396 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…is the corresponding experimental measurement, and ∆ tot accounts for the 1 Use of the more recent NNPDF2.3 set [5], which includes LHC data but which came available only after this analysis was performed, is expected to give the same conclusions as our study.…”

Section: Theoretical Setupmentioning

confidence: 66%

Sensitivity of the LHC isolated-γ + jet data to the parton distribution functions of the proton

Carminati¹,

d’Enterria²,

Koletsou³

et al. 2013

EPL

View full text Add to dashboard Cite

We study the impact of differential isolated-photon+jet cross sections measured in proton-proton collisions at a center-of-mass energy of √ s = 7 TeV on the parton distribution functions (PDF) of the proton. Next-to-leading-order perturbative QCD (pQCD) calculations complemented with the NNPDF2.1 parton densities, and a Bayesian PDF reweighting method are employed. We find that although the current data provide only mild constraints to the parton densities, future γ-jet measurements with reduced experimental uncertainties can improve our knowledge of the gluon density over a wide range of parton fractional momenta x as well as of the quarks at low-x.

show abstract

Section: Theoretical Setupmentioning

confidence: 66%

Sensitivity of the LHC isolated-γ + jet data to the parton distribution functions of the proton

Carminati¹,

d’Enterria²,

Koletsou³

et al. 2013

EPL

View full text Add to dashboard Cite

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

“…Deep inelastic scattering (DIS) data provide high precision tests of perturbative quantum chromodynamics (QCD), and have led to a detailed and comprehensive understanding of proton structure, see [1] for a recent review. A measurement of the longitudinal proton structure function, F L , provides a unique test of parton dynamics and the consistency of QCD by allowing a comparison of the gluon density obtained largely from the scaling violations of F 2 to an observable directly sensitive to the gluon density.…”

Section: Introductionmentioning

confidence: 99%

Measurement of inclusive $$\varvec{ep}$$ e p cross sections at high $${\varvec{Q}^{2}}$$ Q 2 at $$\varvec{\sqrt{s}}=225$$ s = 225 and 252 GeV and of the longitudinal proton structure function $${\varvec{F}_{\varvec{L}}}$$ F L at HERA

Andreev

Baghdasaryan

et al. 2014

Eur. Phys. J. C

View full text Add to dashboard Cite

Inclusive ep double differential cross sections for neutral current deep inelastic scattering are measured with the H1 detector at HERA. The data were taken with a lepton beam energy of 27.6 GeV and two proton beam energies of E p = 460 and 575 GeV corresponding to centre-of-mass energies † Deceased a e-mail: daum@mail. of 225 and 252 GeV, respectively. The measurements cover the region of 6.5 × 10 −4 ≤ x ≤ 0.65 for 35 ≤ Q 2 ≤ 800 GeV 2 up to y = 0.85. The measurements are used together with previously published H1 data at E p = 920 GeV and lower Q 2 data at E p = 460, 575 and 920 GeV to extract the longitudinal proton structure function F L in the region 1.5 ≤ Q 2 ≤ 800 GeV 2 .

show abstract

The quark and gluon structure of the proton

Cited by 48 publications

References 396 publications

Sensitivity of the LHC isolated-γ + jet data to the parton distribution functions of the proton

Sensitivity of the LHC isolated-γ + jet data to the parton distribution functions of the proton

Progress in the Determination of the Partonic Structure of the Proton

Measurement of inclusive $$\varvec{ep}$$ e p cross sections at high $${\varvec{Q}^{2}}$$ Q 2 at $$\varvec{\sqrt{s}}=225$$ s = 225 and 252 GeV and of the longitudinal proton structure function $${\varvec{F}_{\varvec{L}}}$$ F L at HERA

Contact Info

Product

Resources

About