Results 11 to 20 of about 194,290 (301)

Multiple Parton Scattering in Nuclei: Parton Energy Loss [PDF]

open access: yesNuclear Physics A, 2001
Multiple parton scattering and induced parton energy loss is studied in deeply inelastic scattering (DIS) off nuclei. The effect of multiple scattering of a highly off-shell quark and the induced parton energy loss is expressed in terms of the ...
Airapetian   +38 more
core   +6 more sources

Parton correlations in double parton scattering [PDF]

open access: yes, 2018
Double parton scattering events are directly sensitive to the correlations between two partons inside a proton and can answer fundamental questions on the connections between the proton constituents.
Kasemets, Tomas, Scopetta, Sergio
core   +4 more sources

Parton Distributions [PDF]

open access: yesInternational Journal of Modern Physics A, 2003
I discuss our current understanding of parton distributions. I begin with the underlying theoretical framework, and the way in which different data sets constrain different partons, highlighting recent developments.
Abe F.   +6 more
core   +2 more sources

Asymmetric Parton Distributions [PDF]

open access: yesAIP Conference Proceedings, 1997
Applications of perturbative QCD to hard exclusive electroproduction processes in the Bjorken limit at small invariant momentum transfer t bring in a new type of parton distributions which have hybrid properties, resembling both the parton distribution ...
Radyushkin, Anatoly V.
core   +5 more sources

Tuning the Circularly Polarized Reflection from Cholesteric Hydroxypropyl Cellulose Using Molecular Photoswitches. [PDF]

open access: yesAngew Chem Int Ed Engl
Molecular photoswitches dispersed in a cholesteric hydroxypropyl cellulose mesophase enable reversible, light‐driven tuning of structural color and polarization. Enantiomer‐specific effects and light‐responsive patterning highlight the potential of dynamic, cellulose‐based photonic materials.
Hassan F   +8 more
europepmc   +3 more sources

Concerning pion parton distributions [PDF]

open access: yesEuropean Physical Journal A, 2021
Analyses of the pion valence-quark distribution function (DF), , which explicitly incorporate the behaviour of the pion wave function prescribed by quantum chromodynamics (QCD), predict , $$\beta (\zeta \gtrsim m_p)>2$$ β ( ζ ≳ m p ) > 2 , where $$m_p ...
Zhu-Fang Cui   +9 more
semanticscholar   +1 more source

Parton distributions from LHC, HERA, Tevatron and fixed target data: MSHT20 PDFs [PDF]

open access: yesThe European Physical Journal C, 2020
We present the new MSHT20 set of parton distribution functions (PDFs) of the proton, determined from global analyses of the available hard scattering data. The PDFs are made available at NNLO, NLO, and LO, and supersede the MMHT14 sets. They are obtained
S. Bailey   +4 more
semanticscholar   +1 more source

PARTONIC INTERPRETATION OF GENERALIZED PARTON DISTRIBUTIONS [PDF]

open access: yesInternational Journal of Modern Physics: Conference Series, 2011
Dispersion relations have been applied to hard exclusive processes suggesting that generalized parton distributions can be fully determined from their values on a kinematical ridge. We show significant pitfalls associated that vitiate this approach. We suggest an improved treatment of this assumption.
Goldstein, Gary R., Liuti, Simonetta
openaire   +2 more sources

Simultaneous Monte Carlo analysis of parton densities and fragmentation functions [PDF]

open access: yesPhysical Review D, 2021
We perform a comprehensive new Monte Carlo analysis of high-energy lepton-lepton, lepton-hadron and hadron-hadron scattering data to simultaneously determine parton distribution functions (PDFs) in the proton and parton to hadron fragmentation functions (
E. Moffat   +3 more
semanticscholar   +1 more source

On sum rules for double and triple parton distribution functions and Pythia’s model of multiple parton interactions

open access: yesJournal of High Energy Physics, 2023
Multi-parton distributions in a proton, the nonperturbative quantities needed to make predictions for multiple scattering rates, are poorly constrained from theory and data and must be modelled.
Oleh Fedkevych, Jonathan R. Gaunt
doaj   +1 more source

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