PARTON DISTRIBUTION FUNCTIONS WITH QED CORRECTIONS

@article{Carrazza2015PARTONDF,
  title={PARTON DISTRIBUTION FUNCTIONS WITH QED CORRECTIONS},
  author={Stefano Carrazza},
  journal={arXiv: High Energy Physics - Phenomenology},
  year={2015}
}
  • S. Carrazza
  • Published 1 September 2015
  • Physics
  • arXiv: High Energy Physics - Phenomenology
We present the first unbiased determination of parton distribution functions (PDFs) with electroweak corrections. The aim of this thesis is to provide an exhaustive description of the theoretical framework and the technical implementation which leads to the determination of a set of PDFs which includes the photon PDF and quantum electrodynamics (QED) contributions to parton evolution. First, we introduce and motivate the need of including electroweak corrections to PDFs, providing… 

Parton distribution functions with QED corrections in the valon model

Parton distribution functions (PDFs) with QED corrections extracted from the QED$\otimes$QCD DGLAP evolution equations in the framework of "valon" model. Our results for the PDFs with QED corrections

Decoupling the NLO-coupled QED⊗QCD, DGLAP evolution equations, using Laplace transform method

We analytically solved the QED⊗QCD-coupled DGLAP evolution equations at leading order (LO) quantum electrodynamics (QED) and next-to-leading order (NLO) quantum chromodynamics (QCD) approximations,

Reconstructing partonic kinematics at colliders with machine learning

In the context of high-energy physics, a reliable description of the parton-level kinematics plays a crucial role for understanding the internal structure of hadrons and improving the precision of

Analytical solutions of the QED$\otimes$QCD DGLAP evolution equations based on the Mellin transform technique

In this paper we present a new and efficient analytical solutions for evolving the QED$\otimes$QCD DGLAP evolution equations in mellin space and obtain the parton distribution functions (PDFs) in

Electroweak Radiation in Antenna Parton Showers

We present the implementation of electroweak radiation in the Vincia parton shower. Due to the chiral nature of the electroweak theory, it is important to include explicit spin dependence in the

Standard Model parton distributions at very high energies

A bstractWe compute the leading-order evolution of parton distribution functions for all the Standard Model fermions and bosons up to energy scales far above the electroweak scale, where electroweak

Jetting Through The Primordial Universe

Collisions of heavy ion nuclei at relativistic speeds (close to the speed of light) creates a high temperature and very dense form of matter, now known to consist of de-confined quarks and gluons,

Transverse Momentum Dependent Parton Density Function for the Photon

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Substructure at Colliders

In this PhD thesis we investigate several aspects of parton distribution functions (PDFs) and jets as applicable to the physics underpinning the Large Hadron Collider (LHC) as well as future

References

SHOWING 1-10 OF 190 REFERENCES

Uncertainties of predictions from parton distributions I: Experimental errors

Abstract. We determine the uncertainties on observables arising from the errors on the experimental data that are fitted in the global MRST2001 parton analysis. By diagonalizing the error matrix we

Towards the determination of the photon parton distribution function constrained by LHC data

We provide a discussion of the impact of a subset of Drell-Yan data from LHC on the determination of the photon parton distribution function (PDF), using the NNPDF methodology. In previous work we

APFEL: A PDF evolution library with QED corrections

Uncertainties of predictions from parton distributions II: theoretical errors

Abstract.We study the uncertainties in parton distributions, determined in global fits to deep inelastic and related hard scattering data, due to so-called theoretical errors. Amongst these, we

Parton distributions for the LHC

AbstractWe present updated leading-order, next-to-leading order and next-to-next-to-leading order parton distribution functions (“MSTW 2008”) determined from global analysis of hard-scattering data

A posteriori inclusion of parton density functions in NLO QCD final-state calculations at hadron colliders: the APPLGRID project

A method to facilitate the consistent inclusion of cross-section measurements based on complex final-states from HERA, TEVATRON and the LHC in proton parton density function (PDF) fits has been
...