Academic Journal
Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory
| Τίτλος: | Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory |
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| Συγγραφείς: | He, F., Ji, C.-R., Melnitchouk, W., Thomas, A.W., Wang, P. |
| Πηγή: | http://dx.doi.org/10.1103/physrevd.106.054006. |
| Στοιχεία εκδότη: | American Physical Society (APS) |
| Έτος έκδοσης: | 2022 |
| Συλλογή: | The University of Adelaide: Digital Library |
| Θεματικοί όροι: | Effective field theory, Particles and fields |
| Περιγραφή: | We calculate the spin-averaged generalized parton distributions (GPDs) of sea quarks in the proton at zero skewness from nonlocal covariant chiral effective theory, including one-loop contributions from intermediate states with pseudoscalar mesons and octet and decuplet baryons. A relativistic regulator is generated from the nonlocal Lagrangian where a gauge link is introduced to guarantee local gauge invariance, with additional diagrams from the expansion of the gauge link ensuring conservation of electric charge and strangeness. Flavor asymmetries for sea quarks at zero and finite momentum transfer, as well as strange form factors, are obtained from the calculated GPDs, and results compared with phenomenological extractions and lattice QCD. ; Fangcheng He, Chueng-Ryong Ji, W. Melnitchouk, A. W. Thomas, and P. Wang |
| Τύπος εγγράφου: | article in journal/newspaper |
| Περιγραφή αρχείου: | application/pdf |
| Γλώσσα: | English |
| ISSN: | 2470-0010 2470-0029 |
| Relation: | http://purl.org/au-research/grants/arc/CE200100008; http://purl.org/au-research/grants/arc/DP180100497; Physical Review D, 2022; 106(5):054006-1-054006-38; https://hdl.handle.net/2440/137330; Thomas, A.W. [0000-0003-0026-499X] |
| DOI: | 10.1103/physrevd.106.054006 |
| Διαθεσιμότητα: | https://hdl.handle.net/2440/137330 https://doi.org/10.1103/physrevd.106.054006 |
| Rights: | © American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. |
| Αριθμός Καταχώρησης: | edsbas.9E55B993 |
| Βάση Δεδομένων: | BASE |
| ISSN: | 24700010 24700029 |
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| DOI: | 10.1103/physrevd.106.054006 |