STI Publications - View Publication Form #15632

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Publication Information
Title Proton spin structure from Monte Carlo global QCD analyses
Abstract Although significant progress has been made in recent years in understanding the composition of the proton’s spin from its quark and gluon constituents, a complete picture has yet to emerge. Such information is encoded in spin-dependent parton distribution functions (PDFs) that, as a consequence of being inherently nonperturbative, must be extracted through global QCD analyses of polarized lepton-nucleon and proton-proton collisions. Experiments that measure a final state hadron from these reactions are particularly useful for separating the individual quark and anti-quark polarizations, but require knowledge of parton-to-hadron fragmentation functions (FFs) to describe theoretically. <br /><br /> In this thesis, we present a new approach to global QCD analyses, that were performed recently by the Je¿erson Lab Angular Momentum (JAM) Collaboration to determine the spin PDFs and FFs from deep inelastic scattering (DIS), semi-inclusive DIS, and single inclusive electron-positron annihi
Author(s) Jacob Ethier
Publication Date May 2018
Document Type Thesis
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Theory & Comp Physics / THEORY CENTER / THEORY CENTER
Funding Source Nuclear Physics (NP)
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-THY-18-2800 OSTI Number: 1468927
LANL Number: Other Number: DOE/OR/23177-4531
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Thesis
Thesis Type PhD
Advisor Institution
1. Wally Melnitchouk JLab
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