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A New Research About Pion Parton Distribution Function
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Book Synopsis A New Research about Pion Parton Distribution Function by :
Download or read book A New Research about Pion Parton Distribution Function written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : A new fit of the pion parton distribution functions is provided. Only valence quark distributions are used at a low evolution scale and are evolved with the modified Dokshitzer-Gribov-Lipatov-Altarelli-Parisi equation which is briefly introduced in this work, and the sea quark and gluon distributions are only generated by the quantum chromodynamics processes. We find that the parton distributions can explain the pion-nucleon experiments data well, and it can also be compared with the data from the leading neutron data of experiments at HERA. The momentum distributions among the partons are discussed and our results are consistent with some models.
Book Synopsis Pion Parton Distribution Functions from Lattice QCD by :
Download or read book Pion Parton Distribution Functions from Lattice QCD written by and published by . This book was released on 2003 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Parton Distributions in the Pion from Lattice QCD. by :
Download or read book Parton Distributions in the Pion from Lattice QCD. written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We analyze the moments of parton distribution functions in the pion calculated in lattice QCD, paying particular attention to their chiral extrapolation. Using the lowest three non-trivial moments calculated on the lattice, we assess the accuracy with which the x-dependence of both the valence and sea quark distributions in the pion can be extracted. The resulting valence quark distributions at the physical pion mass are in fair agreement with existing Drell-Yan data, but the statistical errors are such that one cannot yet confirm (or rule out) the large-x behavior expected from hadron helicity conservation in perturbative QCD. One can expect, however, that the next generation of calculations in lattice QCD will allow one to extract parton distributions with a level of accuracy comparable with current experiments.
Book Synopsis Threshold Resummation Effects on the Parton Distribution Function of the Pion and Time-reversal-odd Single-spin Asymmetries by : Matthias Aicher
Download or read book Threshold Resummation Effects on the Parton Distribution Function of the Pion and Time-reversal-odd Single-spin Asymmetries written by Matthias Aicher and published by . This book was released on 2011 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Moments of Parton Distribution Functions for the Pion and Rho Meson from Nf by : Marius Löffler
Download or read book Moments of Parton Distribution Functions for the Pion and Rho Meson from Nf written by Marius Löffler and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monte Carlo Global QCD Analyses of the Pion Parton Distribution Functions by : Patrick Cooper Barry
Download or read book Monte Carlo Global QCD Analyses of the Pion Parton Distribution Functions written by Patrick Cooper Barry and published by . This book was released on 2020 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nucleon and Pion Gluon Parton Distribution Function from Lattice QCD Calculation by : Zhouyou Fan
Download or read book Nucleon and Pion Gluon Parton Distribution Function from Lattice QCD Calculation written by Zhouyou Fan and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parton distribution functions (PDFs) are important to characterize the structure of the hadrons such as protons and neutrons. The contribution to the structure from quarks has been studied in detail during the past few decades. The structure in the gluon sector is also important but less studied. For high-energy hadrons, the gluon contribution dominates at small x, where x is the momentum fraction carried by a quark or gluon. At large x, the uncertainty of the gluon PDF is large, especially compared to that of the quark PDFs at large x. Gluon PDFs for nucleons and pions are mostly extracted from global analysis of experimental data using perturbation theory as a guide. Theoretically, lattice QCD provides an independent non-perturbative theoretical approach to calculate the gluon PDFs. We present the exploratory study of nucleon gluon PDFs from lattice QCD using the quasi-PDF approach. Using valence overlap fermions on the 2 + 1-flavor domain-wall fermion gauge ensemble, the quasi-PDF matrix elements we obtain agree with the Fourier transform of the global-fit PDF within statistical uncertainty. We further study the x-dependent nucleon and pion gluon distributions via the pseudo-PDF approach on lattice ensembles with 2 + 1 + 1 flavors of highly improved staggered quarks (HISQ) generated by the MILC Collaboration. Using clover fermions for the valence action, and adding momentum smearing, PDFs are found for pion boost momenta up to 2.56 9́8 GeV. Several lattice sizes and spacings (a 9́8 0.9, 0.12 and 0.15 9́8 fm) were evaluated, resulting in three pion masses, MÏ0 9́8 220, 310 and 690 9́8 MeV/c2.
Book Synopsis Parton Distribution Functions of the Charged Pion Within the XFitter Framework by : Ivan Novikov
Download or read book Parton Distribution Functions of the Charged Pion Within the XFitter Framework written by Ivan Novikov and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis QCD and Collider Physics by : R. K. Ellis
Download or read book QCD and Collider Physics written by R. K. Ellis and published by Cambridge University Press. This book was released on 2003-12-04 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed overview of the physics of high-energy colliders emphasising the role of QCD.
Book Synopsis Foundations of Perturbative QCD by : John Collins
Download or read book Foundations of Perturbative QCD written by John Collins and published by Cambridge University Press. This book was released on 2011-04-28 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: Giving an accurate account of the concepts, theorems and their justification, this book is a systematic treatment of perturbative QCD. It relates the concepts to experimental data, giving strong motivations for the methods. Ideal for graduate students starting their work in high-energy physics, it will also interest experienced researchers.
Book Synopsis An Introduction to Quarks and Partons by : F. E. Close
Download or read book An Introduction to Quarks and Partons written by F. E. Close and published by . This book was released on 1979 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photon-hadron Interactions by : Richard P. Feynman
Download or read book Photon-hadron Interactions written by Richard P. Feynman and published by Addison-Wesley Longman. This book was released on 1989-01-21 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyzes the theoretical questions related to electron and photon interactions at high energies.
Book Synopsis Lepton Pair Production by : J. Thanh Van Tran
Download or read book Lepton Pair Production written by J. Thanh Van Tran and published by Atlantica Séguier Frontières. This book was released on 1981 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multiple Parton Interactions at the LHC by : Paolo Bartalini
Download or read book Multiple Parton Interactions at the LHC written by Paolo Bartalini and published by World Scientific Publishing. This book was released on 2018-11-08 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many high-energy collider experiments (including the current Large Hadron Collider at CERN) involve the collision of hadrons. Hadrons are composite particles consisting of partons (quarks and gluons), and this means that in any hadron–hadron collision there will typically be multiple collisions of the constituents — i.e. multiple parton interactions (MPI). Understanding the nature of the MPI is important in terms of searching for new physics in the products of the scatters, and also in its own right to gain a greater understanding of hadron structure. This book aims at providing a pedagogical introduction and a comprehensive review of different research lines linked by an involvement of MPI phenomena. It is written by pioneers as well as young leading scientists, and reviews both experimental findings and theoretical developments, discussing also the remaining open issues.
Book Synopsis Basics of Perturbative QCD by : Yuri Dokshitzer
Download or read book Basics of Perturbative QCD written by Yuri Dokshitzer and published by Atlantica Séguier Frontières. This book was released on 1991 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hadron Spectroscopy And Structure - Proceedings Of The Xviii International Conference by : Feng-kun Guo
Download or read book Hadron Spectroscopy And Structure - Proceedings Of The Xviii International Conference written by Feng-kun Guo and published by World Scientific. This book was released on 2020-07-28 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the conference proceedings for the 18th International Conference on Hadron Spectroscopy and Structure (HADRON2019), held in Guilin, China. It is among the most important conference series in the field of hadron spectroscopy and structure. Collecting more than 130 contributions from this conference, the book spans over the topics of meson and baryon spectroscopy, exotic hadrons, hadron production and interactions, analysis tools, QCD and hadron structure, hadrons in nuclear environment and hypernuclei. Summaries of the recent discoveries from Belle, BESIII, LHCb and other high-energy experiments, as well as recent theoretical developments in the above mentioned topics, are contained in this volume, rendering it as a valuable resource for researchers working on hadron spectroscopy and structure.
Book Synopsis The Physics of Neutrino Interactions by : M. Sajjad Athar
Download or read book The Physics of Neutrino Interactions written by M. Sajjad Athar and published by Cambridge University Press. This book was released on 2020-12-03 with total page 975 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive introduction to neutrino physics with detailed description of neutrinos and their properties.
