scholarly journals Insights on proton structure from lattice QCD: The twist-3 parton distribution function gT(x)

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
Shohini Bhattacharya ◽  
Krzysztof Cichy ◽  
Martha Constantinou ◽  
Andreas Metz ◽  
Aurora Scapellato ◽  
...  
Keyword(s):  
Distribution Function ◽  
Lattice Qcd ◽  
Parton Distribution ◽  
Parton Distribution Function ◽  
Proton Structure

scholarly journals First moment of the flavour octet nucleon parton distribution function using lattice QCD

2015 ◽  
Vol 2015 (6) ◽  
Author(s):  
Constantia Alexandrou ◽  
◽  
Martha Constantinou ◽  
Simon Dinter ◽  
Vincent Drach ◽  
...  
Keyword(s):  
Distribution Function ◽  
Lattice Qcd ◽  
Parton Distribution ◽  
Parton Distribution Function ◽  
First Moment

scholarly journals First direct lattice-QCD calculation of the x -dependence of the pion parton distribution function

2019 ◽  
Vol 100 (3) ◽  
Author(s):  
Jian-Hui Zhang ◽  
Jiunn-Wei Chen ◽  
Luchang Jin ◽  
Huey-Wen Lin ◽  
Andreas Schäfer ◽  
...  
Keyword(s):  
Distribution Function ◽  
Lattice Qcd ◽  
Parton Distribution ◽  
Parton Distribution Function ◽  
Direct Lattice

scholarly journals Parton distribution function with nonperturbative renormalization from lattice QCD

2018 ◽  
Vol 97 (1) ◽  
Author(s):  
Jiunn-Wei Chen ◽  
Tomomi Ishikawa ◽  
Luchang Jin ◽  
Huey-Wen Lin ◽  
Yi-Bo Yang ◽  
...  
Keyword(s):  
Distribution Function ◽  
Lattice Qcd ◽  
Parton Distribution ◽  
Parton Distribution Function ◽  
Nonperturbative Renormalization

scholarly journals Unraveling high-energy hadron structures with lattice QCD

2018 ◽  
Vol 33 (36) ◽  
pp. 1830033 ◽  
Author(s):  
Yong Zhao
Keyword(s):  
Distribution Function ◽  
Lattice Qcd ◽  
Parton Distribution ◽  
Parton Distribution Function ◽  
High Energy ◽  
Distribution Functions ◽  
Effective Theory ◽  
Large Momentum ◽  
Parton Distribution Functions ◽  
Factorization Formula

Parton distribution functions are key quantities for us to understand the hadronic structures in high-energy scattering, but they are difficult to calculate from lattice QCD. Recent years have seen fast development of the large-momentum effective theory which allows extraction of the x-dependence of parton distribution functions from a quasi-parton distribution function that can be directly calculated on lattice. The extraction is based on a factorization formula for the quasi-parton distribution function that has been derived rigorously in perturbation theory. A systematic procedure that includes renormalization, perturbative matching, and power corrections has been established to calculate parton distribution functions. Latest progress from lattice QCD has shown promising signs that it will become an effective tool for calculating parton physics.

scholarly journals Updating and optimizing error parton distribution function sets in the Hessian approach. II.

2019 ◽  
Vol 100 (11) ◽  
Author(s):  
Tie-Jiun Hou ◽  
Zhite Yu ◽  
Sayipjamal Dulat ◽  
Carl Schmidt ◽  
C.-P. Yuan
Keyword(s):  
Distribution Function ◽  
Parton Distribution ◽  
Parton Distribution Function

scholarly journals Measurement of the W boson mass

2022 ◽  
Vol 2022 (1) ◽  
Author(s):  
◽  
R. Aaij ◽  
A. S. W. Abdelmotteleb ◽  
C. Abellán Beteta ◽  
T. Ackernley ◽  
...  
Keyword(s):  
Distribution Function ◽  
Parton Distribution ◽  
W Boson ◽  
Parton Distribution Function ◽  
Boson Mass ◽  
Proton Collision ◽  
Proton Proton ◽  
Lhcb Experiment ◽  
Proton Proton Collision ◽  
Pm 10

Abstract The W boson mass is measured using proton-proton collision data at $$ \sqrt{s} $$ s = 13 TeV corresponding to an integrated luminosity of 1.7 fb−1 recorded during 2016 by the LHCb experiment. With a simultaneous fit of the muon q/pT distribution of a sample of W → μν decays and the ϕ* distribution of a sample of Z → μμ decays the W boson mass is determined to be$$ {m}_w=80354\pm {23}_{\mathrm{stat}}\pm {10}_{\mathrm{exp}}\pm {17}_{\mathrm{theory}}\pm {9}_{\mathrm{PDF}}\mathrm{MeV}, $$ m w = 80354 ± 23 stat ± 10 exp ± 17 theory ± 9 PDF MeV , where uncertainties correspond to contributions from statistical, experimental systematic, theoretical and parton distribution function sources. This is an average of results based on three recent global parton distribution function sets. The measurement agrees well with the prediction of the global electroweak fit and with previous measurements.

scholarly journals Transverse momentum-dependent parton distributions of pion in the light-front holographic model

2021 ◽  
Vol 36 (08n09) ◽  
pp. 2150052
Author(s):  
Navdeep Kaur ◽  
Harleen Dahiya
Keyword(s):  
Experimental Data ◽  
Distribution Function ◽  
Transverse Momentum ◽  
Parton Distribution ◽  
Parton Distribution Function ◽  
Light Front ◽  
Holographic Model ◽  
Parton Distributions ◽  
Transverse Momentum Dependent ◽  
Mulders Function

Using the light-front holographic model, we study the transverse momentum-dependent parton distributions (TMDs) for the case of pion. At leading twist, the unpolarized parton distribution function [Formula: see text] and the Boer–Mulders function [Formula: see text] are obtained for pion. We calculate both the functions using the light-front holographic model with spin improved wave function and compare the predicted results with available results of other models. In order to provide inputs in predicting future experimental data, an LO evolution is performed from model scale to experimental scale for the case of unpolarized parton distribution function [Formula: see text].

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