Results 61 to 70 of about 194,290 (301)
Double parton distributions in the pion from lattice QCD
Journal of High Energy Physics, 2021 We perform a lattice study of double parton distributions in the pion, using the relationship between their Mellin moments and pion matrix elements of two local currents. A good statistical signal is obtained for almost all relevant Wick contractions. We
Gunnar S. Bali +6 more
doaj +1 more source
Collinear matching for next-to-leading power transverse-momentum distributions
Physics Letters B, 2023 Phenomenological studies of transverse momentum dependent (TMD) parton distributions rely on the expansion in small values of the transverse separation of fields, where TMD parton distributions match onto collinear parton distribution functions.
Simone Rodini +2 more
doaj +1 more source
Quark Transverse Parton Distribution at the Next-to-Next-to-Next-to-Leading Order. [PDF]
Physical Review Letters, 2019 We report a calculation of the perturbative matching coefficients for the transverse-momentum-dependent parton distribution functions for quark at the next-to-next-to-next-to-leading order in QCD, which involves calculation of nonstandard Feynman ...
M. Luo +3 more
semanticscholar +1 more source
Soft radiation in parton-parton scattering
Nuclear Physics B, 1987 Abstract We investigate the pattern of soft gluon radiation associated with parton-parton scattering by explicit evaluation of the 2 → 3 scattering processes in the soft limit. After azimuthal averaging, the results provide the initial conditions for an angular-ordering approximation to coherent multiple soft gluon emission, which may be incorporated
R.K. Ellis, G. Marchesini, B.R. Webber
openaire +2 more sources
Social Work/Maatskaplike Werk, 2008 This paper sets out to describe the comparisons of subjective quality-of-life indicators acrossdomains that enable Jewish older persons – and, in particular, those who are members of CapeJewish Seniors Association, Milnerton1 – to remain living in their ...
Sue Parton
doaj +1 more source
Implication of the overlap representation for modelling generalized parton distributions [PDF]
, 2001 Based on a field theoretically inspired model of light-cone wave functions, we derive valence-like generalized parton distributions and their double distributions from the wave function overlap in the parton number conserved s-channel.
A Bogicevic +27 more
core +2 more sources
Critical Debates and Developments in Child Protection: Some Introductory Comments
Social Sciences, 2020 I would like to begin by thanking all of the authors who have contributed to this Social Sciences Special on “critical debates and developments in child protection” for their hard work and timely dedication in responding so positively to the requests and
Nigel Parton
doaj +1 more source
Parton fragmentation functions [PDF]
Progress in Particle and Nuclear Physics, 2016 103 pages, 31 figures, discussion and references added, accepted for publication in Progress in Particle and Nuclear ...
Metz, Andreas, Vossen, Anselm
openaire +2 more sources
Social Work, Child Protection and Politics: Some Critical and Constructive Reflections [PDF]
, 2014 This Critical Commentary reflects on how the author's personal and professional experiences have both mirrored and fed into the changing policy and practice contexts in England over the last forty years.
N. Parton +6 more
core +1 more source
Transverse-momentum-dependent parton distributions up to N3LL from Drell-Yan data [PDF]
Journal of High Energy Physics, 2019 We present an extraction of unpolarised Transverse-Momentum-Dependent Parton Distribution Functions based on Drell-Yan production data from different experiments, including those at the LHC, and spanning a wide kinematic range.
A. Bacchetta +6 more
semanticscholar +1 more source