Results 41 to 50 of about 1,540,061 (200)
Nucleon parton distributions in a light-front quark model
, 2017 Continuing with our analysis of parton distributions in the nucleon, we extend our light-front quark model in order to obtain both the helicity independent and helicity dependent parton distributions, analytically matching the results of global fits at ...
Gutsche, Thomas +2 more
core +1 more source
Determining the strange and antistrange quark distributions of the nucleon
, 2011 The difference between the strange and antistrange quark distributions, $\delta s(x)=s(x)-\sbar(x)$, and the combination of light quark sea and strange quark sea, $\Delta (x)=\dbar(x)+\ubar(x)-s(x)-\sbar(x)$, are originated from non-perturbative ...
A. I signal +6 more
core +1 more source
Generalized parton distributions of gluon in proton: A light-front quantization approach
Physics Letters B, 2023 We solve for the gluon generalized parton distributions (GPDs) inside the proton at zero skewness, focusing specifically on leading twist chiral-even GPDs.
Bolang Lin +6 more
doaj +1 more source
On the proper treatment of improper distributions [PDF]
, 2017 The axiomatic foundation of probability theory presented by Kolmogorov has been the basis of modern theory for probability and statistics. In certain applications it is, however, necessary or convenient to allow improper (unbounded) distributions, which ...
Lindqvist, Bo H., Taraldsen, Gunnar
core +2 more sources
QML Estimation of GARCH(1,1) Process [PDF]
Maǧallaẗ Al-Buḥūṯ Al-Mālīyyaẗ wa Al-Tiğāriyyaẗ, 2017 In financial time series, the conventional fitting procedure (QMLE) suffers from the outlier problem. Estimation of the parameters in GARCH model, can be adversely affected by a single outlier.simulation studies will not only demonstrate the robustness ...
Mona Samy Elkhouly
doaj +1 more source
Measurement of angular distributions by use of low-coherence interferometry for light-scattering spectroscopy [PDF]
, 2001 We present a novel interferometer for measuring angular distributions of backscattered light. The new system exploits a low-coherence source in a modified Michelson interferometer to provide depth resolution, as in optical coherence tomography, but ...
Dasari, Ramachandra R. +3 more
core +1 more source
Quark Wigner Distributions Using Light-Front Wave Functions
, 2017 The quasi-probabilistic Wigner distributions are the quantum mechanical analog of the classical phase-space distributions. We investigate quark Wigner distributions for a quark state dressed with a gluon, which can be thought of as a simple composite and
More, Jai +2 more
core +1 more source
Experimental demonstration of holographic three-dimensional light shaping using a Gerchberg-Saxton algorithm [PDF]
, 2005 We use a three-dimensional Gerchberg–Saxton algorithm (Shabtay (2003) Opt. Commun. 226 33) to calculate the Fourier-space representation of physically realizable light beams with arbitrarily shaped three-dimensional intensity distributions.
Courtial, J., Whyte, G.
core +3 more sources
Physics Letters B, 2018 A systematic approach for the model building of Generalized Parton Distributions (GPDs), based on their overlap representation within the DGLAP kinematic region and a further covariant extension to the ERBL one, is applied to the valence-quark pion's ...
N. Chouika +3 more
doaj +1 more source
Constraining Light-Quark Yukawa Couplings from Higgs Distributions
, 2016 We propose a novel strategy to constrain the bottom and charm Yukawa couplings by exploiting LHC measurements of transverse momentum distributions in Higgs production.
Bishara, Fady +3 more
core +2 more sources