J. O. Gonzalez-Hernandez
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View article: LHCspin: a Polarized Gas Target for LHC
LHCspin: a Polarized Gas Target for LHC Open
The goal of the LHCspin project is to develop innovative solutions for measuring the 3D structure of nucleons in high-energy polarized fixed-target collisions at LHC, exploring new processes and exploiting new probes in a unique, previousl…
View article: Mapping the kinematical regimes of semi-inclusive deep inelastic scattering
Mapping the kinematical regimes of semi-inclusive deep inelastic scattering Open
We construct a language for identifying kinematical regions of transversely differential semi-inclusive deep inelastic scattering (SIDIS) cross sections with particular underlying partonic pictures, especially in the regions of moderate to…
View article: Phenomenology of TMD parton distributions in Drell-Yan and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>Z</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> boson production in a hadron structure oriented approach
Phenomenology of TMD parton distributions in Drell-Yan and boson production in a hadron structure oriented approach Open
We present a first practical implementation of a recently proposed hadron structure oriented (HSO) approach to transverse momentum dependent (TMD) phenomenology applied to Drell-Yan-like processes, including lepton pair production at moder…
View article: TMD phenomenology motivated by nonperturbative structures
TMD phenomenology motivated by nonperturbative structures Open
This talk summarized work done recently to organize the steps for implementing TMD phenomenology in a way optimized for contexts where the extraction and interpretation of hadronic structures and nonperturbative effects is the primary driv…
View article: TMD phenomenology motivated by nonperturbative structures
TMD phenomenology motivated by nonperturbative structures Open
This talk summarized work done recently to organize the steps for implementing TMD phenomenology in a way optimized for contexts where the extraction and interpretation of hadronic structures and nonperturbative effects is the primary driv…
View article: Simultaneous reweighting of Transverse Momentum Dependent distributions
Simultaneous reweighting of Transverse Momentum Dependent distributions Open
View article: Simultaneous reweighting of Transverse Momentum Dependent distributions
Simultaneous reweighting of Transverse Momentum Dependent distributions Open
The Bayesian reweighting procedure is extended to the case of multiple independent extractions of transverse momentum dependent parton distributions (TMDs). By exploiting the data on transverse single spin asymmetries, $A_N$, for inclusive…
View article: Phenomenology of TMD parton distributions in Drell-Yan and $Z^0$ boson production in a hadron structure oriented approach
Phenomenology of TMD parton distributions in Drell-Yan and $Z^0$ boson production in a hadron structure oriented approach Open
We present a first practical implementation of a recently proposed hadron structure oriented (HSO) approach to TMD phenomenology applied to Drell-Yan like processes, including lepton pair production at moderate $Q^2$ and $Z^0$ boson produc…
View article: Proof of Principle for a Self-Governing Prediction and Forecasting Reward Algorithm
Proof of Principle for a Self-Governing Prediction and Forecasting Reward Algorithm Open
We use Monte Carlo techniques to simulate an organized prediction competition between a group of scientific experts acting under the influence of a "self-governing" prediction reward algorithm. Our aim is to illustrate the advantages of a …
View article: Resolution to the problem of consistent large transverse momentum in TMDs
Resolution to the problem of consistent large transverse momentum in TMDs Open
Parametrizing TMD parton densities and fragmentation functions in ways that consistently match their large transverse momentum behavior in standard collinear factorization has remained notoriously difficult. We show how the problem is solv…
View article: Proof of principle for a self-governing prediction and forecasting reward algorithm
Proof of principle for a self-governing prediction and forecasting reward algorithm Open
We use Monte Carlo techniques to simulate an organized prediction competition between a group of a scientific experts acting under the influence of a ``self-governing'' prediction reward algorithm. Our aim is to illustrate the advantages o…
View article: Basics of factorization in a scalar Yukawa field theory
Basics of factorization in a scalar Yukawa field theory Open
The factorization theorems of QCD apply equally well to most simple quantum field theories that require renormalization but where direct calculations are much more straightforward. Working with these simpler theories is convenient for stre…
View article: The resolution to the problem of consistent large transverse momentum in TMDs
The resolution to the problem of consistent large transverse momentum in TMDs Open
Parametrizing TMD parton densities and fragmentation functions in ways that consistently match their large transverse momentum behavior in standard collinear factorization has remained notoriously difficult. We show how the problem is solv…
View article: Basics of factorization in a scalar Yukawa field theory
Basics of factorization in a scalar Yukawa field theory Open
The factorization theorems of quantum chromodynamics (QCD) apply equally well to most simple quantum field theories that require renormalization but where direct calculations are much more straightforward. Working with these simpler theori…
View article: Transverse momentum dependent fragmentation functions from recent BELLE data
Transverse momentum dependent fragmentation functions from recent BELLE data Open
A new formalism for the factorization of the cross section for single hadron\nproduction in $e^+e^-$ annihilations, differential in $z_h$, $P_T$ and thrust,\nis applied to the phenomenological analysis of data recently measured by the\nBEL…
View article: Combining nonperturbative transverse momentum dependence with TMD evolution
Combining nonperturbative transverse momentum dependence with TMD evolution Open
Central to understanding the nonpertubative, intrinsic partonic nature of\nhadron structure are the concepts of transverse momentum dependent (TMD) parton\ndistribution and fragmentation functions. A TMD factorization approach to the\nphen…
View article: Phenomenological extraction of a universal TMD fragmentation function from single hadron production in $e^+ e^-$ annihilations
Phenomenological extraction of a universal TMD fragmentation function from single hadron production in $e^+ e^-$ annihilations Open
Factorizing the cross section for single hadron production in e^+e^- annihilations, differential in z_h , P_T and thrust, is a highly non trivial task. We have devised a factorization scheme that allows us to recast the e^+e^- \to hX c…
View article: Reweighting the quark Sivers function with STAR jet data
Reweighting the quark Sivers function with STAR jet data Open
The Bayesian reweighting procedure is applied for the first time to a TMD distribution, the quark Sivers function extracted from SIDIS data. By exploiting the recent published single spin asymmetry data for the inclusive jet production in …
View article: Unpolarised transverse momentum dependent distribution and fragmentation functions from SIDIS multiplicities
Unpolarised transverse momentum dependent distribution and fragmentation functions from SIDIS multiplicities Open
In this study, the unpolarised transverse momentum dependent distribution and fragmentation functions are extracted from HERMES and COMPASS experimental measurements of SIDIS multiplicities for charged hadron production. The data are group…
View article: Phenomenological extraction of a universal TMD fragmentation function from single hadron production in $e^+ e^-$ annihilations
Phenomenological extraction of a universal TMD fragmentation function from single hadron production in $e^+ e^-$ annihilations Open
Factorizing the cross section for single hadron production in $e^+e^-$ annihilations, differential in $z_h$, $P_T$ and thrust, is a highly non trivial task. We have devised a factorization scheme that allows us to recast the $e^+e^- \to hX…
View article: Reweighting the quark Sivers function with STAR jet data
Reweighting the quark Sivers function with STAR jet data Open
The Bayesian reweighting procedure is applied for the first time to a TMD distribution, the quark Sivers function extracted from SIDIS data. By exploiting the recent published single spin asymmetry data for the inclusive jet production in …
View article: Reweighting the Sivers function with jet data from STAR
Reweighting the Sivers function with jet data from STAR Open
View article: Extraction of generalized parton distribution observables from deeply virtual electron proton scattering experiments
Extraction of generalized parton distribution observables from deeply virtual electron proton scattering experiments Open
We provide the general expression of the cross section for exclusive deeply virtual photon electroproduction from a spin-1/2 target using current parametrizations of the off-forward correlation function in a nucleon for different beam and …
View article: Comments on the perturbative and non-perturbative contributions in unpolarized SIDIS.
Comments on the perturbative and non-perturbative contributions in unpolarized SIDIS. Open
We address the large suppression of the unpolarized SIDIS cross section in the small transverse momentum region, due to the $O(\\alpha_{\\rm s})$ contributions in the $C$-coefficients needed for a consistent matching to the large transvers…
View article: Large transverse momentum in semi-inclusive deeply inelastic scattering beyond lowest order
Large transverse momentum in semi-inclusive deeply inelastic scattering beyond lowest order Open
Motivated by recently observed tension between $O\\left(\\alpha_s^2\\right)$\ncalculations of very large transverse momentum dependence in both\nsemi-inclusive deep inelastic scattering and Drell-Yan scattering, we repeat\nthe details of t…
View article: Helicity and Spin of Linearly Polarized Hermite-Gaussian Modes
Helicity and Spin of Linearly Polarized Hermite-Gaussian Modes Open
The angular momentum content and propagation of linearly polarized Hermite-Gaussian modes are analyzed. The helicity gauge invariant continuity equation reveals that the helicity and flow in the direction of propagation are zero. However, …
View article: Challenges with large transverse momentum in semi-inclusive deeply inelastic scattering
Challenges with large transverse momentum in semi-inclusive deeply inelastic scattering Open
We survey the current phenomenological status of semi-inclusive deep inelastic scattering at moderate hard scales and in the limit of very large transverse momentum. As the transverse momentum becomes comparable to or larger than the overa…
View article: Assessing signals of TMD physics in SIDIS azimuthal asymmetries and in the extraction of the Sivers function
Assessing signals of TMD physics in SIDIS azimuthal asymmetries and in the extraction of the Sivers function Open
View article: Transverse parton momenta in single inclusive hadron production in e+e− annihilation processes
Transverse parton momenta in single inclusive hadron production in e+e− annihilation processes Open
View article: Kinematics of current region fragmentation in semi-inclusive deeply inelastic scattering
Kinematics of current region fragmentation in semi-inclusive deeply inelastic scattering Open