STI Publications - View Publication Form #16452
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Publication Information
| Title | Simultaneous Monte Carlo analysis of parton densities and fragmentation functions | ||||
| Abstract | We perform a comprehensive new Monte Carlo analysis of high-energy lepton-lepton, lepton-hadron and hadron-hadron scattering data to simultaneously determine parton distribution functions (PDFs) in the proton and parton to hadron fragmentation functions (FFs). The analysis includes all available semi-inclusive deep-inelastic scattering and single-inclusive $e^+ e^-$ annihilation data for pions, kaons and unidentified charged hadrons, which allows the flavor dependence of the fragmentation functions to be constrained. Employing a new multi-step fitting strategy and more flexible parametrizations for both PDFs and FFs, we assess the impact of different data sets on sea quark densities, and confirm the previously observed suppression of the strange quark distribution. The new fit, which we refer to as ``JAM20-SIDIS'', will allow for improved studies of universality of parton correlation functions, including transverse momentum dependent (TMD) distributions, across a wide variety of pro | ||||
| Author(s) | Eric Moffat, Wally Melnitchouk, Ted Rogers, Nobuo Sato | ||||
| Publication Date | July 2021 | ||||
| Document Type | Journal Article | ||||
| 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 |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review D |
| Refereed | Yes |
| Volume | 104 |
| Issue | |
| Page(s) | 016015 |
Attachments/Datasets/DOI Link
| Document(s) |
JAM_ff_hadron.pdf
(STI Document)
PhysRevD.104.016015.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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