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parton distribution functions

Parton distribution functions on the lattice and in the continuum

Parton distribution functions on the lattice and in the continuum

... are functions of the Ioffe-time ν, are the Fourier transforms of parton distribution functions with respect to the momentum fraction vari- able ...

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Developments in the parton distribution functions of the proton

Developments in the parton distribution functions of the proton

... the parton distribution functions of the proton Marco Guzzi 1 , a 1 Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany ...the parton distribution ...

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Parton Distribution Functions and Lattice QCD

Parton Distribution Functions and Lattice QCD

... the parton distribution functions ...the parton quasi-distribution in a regularization-independent momentum-subtraction scheme, we establish its matching to the MS PDF and calculate the ...

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Parton Distribution Functions and the role of forward region data

Parton Distribution Functions and the role of forward region data

... Parton Distribution Functions and the role of forward region data Voica Radescu 1 , a 1 University of Oxford, Denys Wilkinson Building Keble Road, Oxford OX1 3RH, ...

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Proton structure and parton distribution functions from HERA

Proton structure and parton distribution functions from HERA

... and parton distribution functions from HERA Vladimir Chekelian 1 ...structure functions F 2 , F 2 γZ , xF γZ 3 and F L were obtained, and scaling violations, electroweak unification, and ...

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Parton distribution functions at LO, NLO and NNLO with correlated uncertainties between orders

Parton distribution functions at LO, NLO and NNLO with correlated uncertainties between orders

... of parton distribution functions (PDFs) of the proton are reported for the leading (LO), next- to-leading (NLO) and next-to-next-to leading order (NNLO) QCD ...The parton dis- tribution ...

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Nuclear Modvication to Parton Distribution Functions and Parton Saturation

Nuclear Modvication to Parton Distribution Functions and Parton Saturation

... We present a new set of modified DGLAP evolution equations for nuclear PDFs, and show that the resummed ~x,A~/~/Q~-type of leading nuclear size enhanced power correction[r] ...

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CTEQ-TEA parton distribution functions with intrinsic charm

CTEQ-TEA parton distribution functions with intrinsic charm

... 1.1 The perturbative charm PDF In global PDF analyses, all QCD parameters, such as α s and the quark masses, are correlated with the PDFs. The determination of the PDFs depends not only on the data sample included in the ...

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RECONSTRUCTING PARTON DISTRIBUTION FUNCTIONS FROM THEIR COORDINATE SPACE BEHAVIOR

RECONSTRUCTING PARTON DISTRIBUTION FUNCTIONS FROM THEIR COORDINATE SPACE BEHAVIOR

... GPD)?.. Information from lattice: Mellin Moments W.. Bali et al.. Green et al., Phys.. Using Detmold et al.. Comparison Detmold and Hägler.. Error analysis in progress. ii) What PDF-rel[r] ...

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Progress in computing parton distribution functions from the quasi-PDF approach

Progress in computing parton distribution functions from the quasi-PDF approach

... 5 Conclusions and future directions In this proceeding, we have summarized our prescription for the non-perturbative renormalization of matrix elements involved in the computation of quasi-PDFs. The employed RI ′ scheme ...

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Parton distribution functions (PDFs) from dipole models and HERA data - predictions for the LHC

Parton distribution functions (PDFs) from dipole models and HERA data - predictions for the LHC

... 1 T.Kosciuszko Cracow University of Technology Abstract. We analyse, within a dipole model, the final, inclusive HERA DIS cross section data in the low x region, using fully correlated errors. We show, that these highest ...

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Transverse momentum-dependent parton distribution functions in lattice QCD. Michael Engelhardt New Mexico State University

Transverse momentum-dependent parton distribution functions in lattice QCD. Michael Engelhardt New Mexico State University

... • To avoid soft factors, multiplicative renormalization constants, constructed appropriate ratios of Fourier- transformed TMDs (“shifts”). • v taken off light cone: Dependence on Collins[r] ...

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Parton Distribution Functions at the LHC. Albert De Roeck CERN, Geneva, Switzerland Antwerp University, Belgium UC Davis, California, USA

Parton Distribution Functions at the LHC. Albert De Roeck CERN, Geneva, Switzerland Antwerp University, Belgium UC Davis, California, USA

... Impact of the Asymmetry Data Including D0, CMS and ATLAS (2010) asymmetry data in the PDF.. Top quark Production and PDFs[r] ...

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Unpolarized transverse momentum dependent parton distribution and fragmentation functions at next-to-next-to-leading order

Unpolarized transverse momentum dependent parton distribution and fragmentation functions at next-to-next-to-leading order

... dependent parton distribution/fragmentation func- tions (TMDs) are essential in the factorization of a number of processes like Drell-Yan scat- tering, vector boson production, semi-inclusive deep inelastic ...

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DIS structure functions in the NLO approximation of the Parton Reggeization Approach

DIS structure functions in the NLO approximation of the Parton Reggeization Approach

... Collinear Parton Model ...the Parton Distribution Functions (PDFs) from NLO global fits, which are conventionally defined in the MS -scheme, can be used as an input to the NLO calculations in ...

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Nuclear parton distributions

Nuclear parton distributions

... Nuclear parton distributions ...nuclear parton distribution functions, which accounts for a number of nuclear effects including Fermi motion and nuclear bind- ing, nuclear meson-exchange ...

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Parton distributions in the LHC era

Parton distributions in the LHC era

... 2 Parton Distribution Functions As mentioned above, a generic hadronic observable involves both long- and short-distance contribu- tions, and cannot be obtained simply by a perturbative ...the ...

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Hadron tomography studies by generalized parton distributions and distribution amplitudes

Hadron tomography studies by generalized parton distributions and distribution amplitudes

... structure functions for finding the original of nucleon spin including partonic orbital-angular-momentum ...structure functions is the GPDs which have been investigated by the DVCS so ...structure ...

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Generalized parton distributions and structure functions from full lattice QCD

Generalized parton distributions and structure functions from full lattice QCD

... forward limit (∆ = 0), these distributions reduce to the Feynman parton distributions. Moments of GPDs are amenable to lattice cal- culations [5,6,7]. Thus, they offer a promising way to link phenomenological ...

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Parton distributions with LHC data

Parton distributions with LHC data

... PDFs are necessary to determine theoretical predictions for signal/background of experimental measurements. Problem: PDF uncertainties on signal range from 4% up to 8% , accordingly to t[r] ...

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