Results 101 to 110 of about 73,038 (193)

Top-quark pole mass extraction at NNLO accuracy, from total, single- and double-differential cross sections for t t ¯ $$ t\overline{t} $$ + X production at the LHC

Journal of High Energy Physics
We extract the top-quark mass value in the on-shell renormalization scheme from the comparison of theoretical predictions for pp → t t ¯ $$ t\overline{t} $$ + X at next-to-next-to-leading order (NNLO) QCD accuracy with experimental data collected by the ...
M. V. Garzelli, J. Mazzitelli, S.-O. Moch, O. Zenaiev   +3 more
doaj   +1 more source

Exploring twist-4 chiral-even GPDs in the light-front quark-diquark model

Nuclear Physics B
In this work, we delve into the realm of quantum chromodynamics (QCD) by calculating twist-4 chiral-even generalized parton distributions (GPDs), within the context of the light-front quark-diquark model (LFQDM), focusing specifically on the intriguing ...
Shubham Sharma, Harleen Dahiya
doaj   +1 more source

Brief review on generalized parton distributions

EPJ Web of Conferences, 2014
We briefly review some recent developments in the field of Generalized Parton Distributions (GPDs) and Deeply virtual Compton scattering in the valence region. First steps in the direction of nucleon imaging are presented.
Guidal Michel
doaj   +1 more source

Chromodynamic Lensing and Transverse Single Spin Asymmetries

, 2003
We illustrate how an axial asymmetry in impact parameter dependent parton distributions can give rise to an axial asymmetry for the transverse momentum of the leading quark in the photo-production of hadrons.
Bacchetta, Belitsky, Boer, Boer, Brodksy, Burkardt, Burkardt, Burkardt, Burkardt, Collins, Diehl, Gousset, Ji, Ji, Matthias Burkardt, Mulders, Ralston, Ralston, Sivers, Soper, Tangerman, Yuan   +21 more
core   +1 more source

Update of MRST parton distributions. [PDF]

, 2002
We discuss the latest update of the MRST parton distributions in response to the most recent data. We discuss the areas where there are hints of difficulties in the global fit, and compare to some other updated sets of parton distributions, particularly ...
Martin, AD, Roberts, RG, Stirling, W James, Thorne, Robert S   +3 more
core   +1 more source

On the role of soft and non-perturbative gluons in collinear parton densities and parton shower event generators

European Physical Journal C: Particles and Fields
The Parton Branching method offers a Monte Carlo solution to the DGLAP evolution equations by incorporating Sudakov form factors. In this approach, the Sudakov form factor can be divided into perturbative and non-perturbative components, with the non ...
M. Mendizabal, F. Guzman, H. Jung, S. Taheri Monfared   +3 more
doaj   +1 more source

Quasi-parton distribution functions, momentum distributions, and pseudo-parton distribution functions

Physical Review D, 2017
We show that quasi-parton distribution functions (quasi-PDFs) may be treated as hybrids of PDFs and primordial rest-frame momentum distributions of partons. This results in a complicated convolution nature of quasi-PDFs that necessitates using large ${p}_{3}\ensuremath{\gtrsim}3\text{ }\text{ }\mathrm{GeV}$ momenta to get reasonably close to the PDF ...
openaire   +3 more sources

Nuclear parton distribution functions

, 2017
6 pages, 4 figures.
openaire   +3 more sources

Center-of-mass energy dependence of intrinsic- $$k_{\textrm{T}}$$ k T distributions obtained from Drell–Yan production

European Physical Journal C: Particles and Fields
The internal motion of partons inside hadrons has been studied through its impact on very low transverse momentum spectra of Drell–Yan (DY) pairs created in hadron-hadron collisions.
I. Bubanja, H. Jung, A. Lelek, N. Raičević, S. Taheri Monfared   +4 more
doaj   +1 more source

Towards ultimate parton distributions at the high-luminosity LHC. [PDF]

Eur Phys J C Part Fields, 2018
Khalek RA, Bailey S, Gao J, Harland-Lang L, Rojo J.   +4 more
europepmc   +1 more source