Alexei Prokudin
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View article: Transverse single-spin asymmetries in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si27.svg"> <mml:mi>γ</mml:mi> </mml:math> SIDIS as a direct probe of quark-gluon-quark longitudinal momentum structure
Transverse single-spin asymmetries in SIDIS as a direct probe of quark-gluon-quark longitudinal momentum structure Open
View article: Transverse momentum distributions at large-x
Transverse momentum distributions at large-x Open
A bstract We investigate the collinear matching of transverse momentum dependent (TMD) distributions at large values of x , computing and resumming the leading large- x asymptotics for matching coefficients. The large- x resummation is don…
View article: Comment on "QCD factorization with multihadron fragmentation functions"
Comment on "QCD factorization with multihadron fragmentation functions" Open
We make several comments on the recent work in Ref.~\cite{Rogers:2024nhb} while also reaffirming and adding to the work in Ref.~\cite{Pitonyak:2023gjx}. We show that the factorization formula for $e^+e^-\to (h_1\cdots h_n)\, X$ in Ref.~\ci…
View article: Transverse momentum distributions at large-$x$
Transverse momentum distributions at large-$x$ Open
We investigate the collinear matching of transverse momentum dependent (TMD) distributions at large values of $x$, computing and resumming the leading large-$x$ asymptotics for matching coefficients. The large-$x$ resummation is done direc…
View article: Studies of transverse momentum dependent parton distributions and Bessel weighting
Studies of transverse momentum dependent parton distributions and Bessel weighting Open
In this paper we present a new technique for analysis of transverse momentum dependent parton distribution functions, based on the Bessel weighting formalism. The procedure is applied to studies of the double longitudinal spin asymmetry in…
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: Transverse momentum moments
Transverse momentum moments Open
We establish robust relations between Transverse Momentum Dependent distributions (TMDs) and collinear distributions. We define weighted integrals of TMDs that we call Transverse Momentum Moments (TMMs) and prove that TMMs are equal to col…
View article: Simultaneous reweighting of Transverse Momentum Dependent distributions
Simultaneous reweighting of Transverse Momentum Dependent distributions Open
View article: First simultaneous global QCD analysis of dihadron fragmentation functions and transversity parton distribution functions
First simultaneous global QCD analysis of dihadron fragmentation functions and transversity parton distribution functions Open
We perform a comprehensive study within quantum chromodynamics (QCD) of dihadron observables in electron-positron annihilation, semi-inclusive deep-inelastic scattering, and proton-proton collisions, including recent cross section data fro…
View article: Transversity Distributions and Tensor Charges of the Nucleon: Extraction from Dihadron Production and Their Universal Nature
Transversity Distributions and Tensor Charges of the Nucleon: Extraction from Dihadron Production and Their Universal Nature Open
We perform the first global quantum chromodynamics (QCD) analysis of dihadron production for a comprehensive set of data in electron-positron annihilation, semi-inclusive deep-inelastic scattering, and proton-proton collisions, from which …
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: Transverse momentum moments
Transverse momentum moments Open
We establish robust relations between Transverse Momentum Dependent distributions (TMDs) and collinear distributions. We define weighted integrals of TMDs that we call Transverse Momentum Moments (TMMs) and prove that TMMs are equal to col…
View article: Number Density Interpretation of Dihadron Fragmentation Functions
Number Density Interpretation of Dihadron Fragmentation Functions Open
We present a new quantum field-theoretic definition of fully unintegrated dihadron fragmentation functions (DiFFs) as well as a generalized version for n-hadron fragmentation functions. We demonstrate that this definition allows certain su…
View article: Tomography of pions and protons via transverse momentum dependent distributions
Tomography of pions and protons via transverse momentum dependent distributions Open
We perform the first simultaneous extraction of parton collinear and transverse degrees of freedom from low-energy fixed-target Drell-Yan data in order to compare the transverse momentum dependent (TMD) parton distribution functions (PDFs)…
View article: Shedding light on shadow generalized parton distributions
Shedding light on shadow generalized parton distributions Open
The feasibility of extracting generalized parton distributions (GPDs) from deeply-virtual Compton scattering (DVCS) data has recently been questioned because of the existence of an infinite set of so-called ``shadow GPDs'' (SGPDs). These S…
View article: The Drell-Yan process with pions and polarized nucleons
The Drell-Yan process with pions and polarized nucleons Open
The Drell-Yan process provides important information on the internal struc- ture of hadrons including transverse momentum dependent parton distribution functions (TMDs). In this work we present calculations for all leading twist structure …
View article: Neutrino-tagged jets at the Electron-Ion Collider
Neutrino-tagged jets at the Electron-Ion Collider Open
We explore the potential of jet observables in charged-current deep inelastic scattering events at the future Electron-Ion Collider. Tagging jets with a recoiling neutrino, which can be identified by the event’s missing transverse momentum…
View article: Number density interpretation of dihadron fragmentation functions
Number density interpretation of dihadron fragmentation functions Open
We present a new quantum field-theoretic definition of fully unintegrated dihadron fragmentation functions (DiFFs) as well as a generalized version for $n$-hadron fragmentation functions. We demonstrate that this definition allows certain …
View article: TMD Handbook
TMD Handbook Open
This handbook provides a comprehensive review of transverse-momentum-dependent parton distribution functions and fragmentation functions, commonly referred to as transverse momentum distributions (TMDs). TMDs describe the distribution of p…
View article: Shedding light on shadow generalized parton distributions
Shedding light on shadow generalized parton distributions Open
The feasibility of extracting generalized parton distributions (GPDs) from deeply-virtual Compton scattering (DVCS) data has recently been questioned because of the existence of an infinite set of so-called ''shadow GPDs'' (SGPDs). These S…
View article: SIDIS-RC EvGen: A Monte-Carlo event generator of semi-inclusive deep inelastic scattering with the lowest-order QED radiative corrections
SIDIS-RC EvGen: A Monte-Carlo event generator of semi-inclusive deep inelastic scattering with the lowest-order QED radiative corrections Open
View article: Neutrino-tagged jets at the Electron-Ion Collider
Neutrino-tagged jets at the Electron-Ion Collider Open
We explore the potential of jet observables in charged-current deep-inelastic scattering (CC DIS) events at the future Electron-Ion Collider (EIC). Tagging jets with a recoiling neutrino, which can be identified by the event's missing tran…
View article: SIDIS-RC EvGen: a Monte-Carlo event generator of semi-inclusive deep inelastic scattering with the lowest-order QED radiative corrections
SIDIS-RC EvGen: a Monte-Carlo event generator of semi-inclusive deep inelastic scattering with the lowest-order QED radiative corrections Open
SIDIS-RC EvGen is a C++ standalone Monte-Carlo event generator for studies of semi-inclusive deep inelastic scattering (SIDIS) processes at medium to high lepton beam energies. In particular, the generator contains binary and library compo…
View article: CORE -- a COmpact detectoR for the EIC
CORE -- a COmpact detectoR for the EIC Open
The COmpact detectoR for the Eic (CORE) Proposal was submitted to the EIC "Call for Collaboration Proposals for Detectors". CORE comprehensively covers the physics scope of the EIC Community White Paper and the National Academies of Scienc…
View article: Updated QCD global analysis of single transverse-spin asymmetries: Extracting <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mover accent="true"><mml:mrow><mml:mi>H</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">˜</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:math>, and the role of the Soffer bound and lattice QCD
Updated QCD global analysis of single transverse-spin asymmetries: Extracting , and the role of the Soffer bound and lattice QCD Open
Here, we present an update to the QCD global analysis of single transverse-spin asymmetries presented in [J. Cammarota et al. (Jefferson Lab Angular Momentum Collaboration), Phys. Rev. D 102, 054002 (2020).] (JAM3D-20). JAM3D-20 simultaneo…
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: Updated QCD global analysis of single transverse-spin asymmetries I: Extracting $\tilde{H}$, and the role of the Soffer bound and lattice QCD
Updated QCD global analysis of single transverse-spin asymmetries I: Extracting $\tilde{H}$, and the role of the Soffer bound and lattice QCD Open
We present an update to the QCD global analysis of single transverse-spin asymmetries presented in Cammarota, et al., PRD 102, 054002 (2020) (JAM3D-20). JAM3D-20 simultaneously included transverse momentum dependent and collinear twist-3 o…
View article: New tool for kinematic regime estimation in semi-inclusive deep-inelastic scattering
New tool for kinematic regime estimation in semi-inclusive deep-inelastic scattering Open
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: Extraction of the Sivers function from SIDIS, Drell-Yan, and W±/Z boson production data with TMD evolution
Extraction of the Sivers function from SIDIS, Drell-Yan, and W±/Z boson production data with TMD evolution Open