Academic Journal
Helicity-dependent distribution of strange quarks in the proton from nonlocal chiral effective theory
| Τίτλος: | Helicity-dependent distribution of strange quarks in the proton from nonlocal chiral effective theory |
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| Συγγραφείς: | He, F., Ji, C.-R., Melnitchouk, W., Salamu, Y., Thomas, A.W., Wang, P., Wang, X.G. |
| Πηγή: | http://dx.doi.org/10.1103/physrevd.105.094007. |
| Στοιχεία εκδότη: | American Physical Society (APS) |
| Έτος έκδοσης: | 2022 |
| Συλλογή: | The University of Adelaide: Digital Library |
| Περιγραφή: | The helicity-dependent strange quark distribution in the proton, Δs, is calculated in a nonlocal chiral SU(3) effective field theory. The hadronic proton to meson plus octet or decuplet baryon splitting functions are derived at the one-loop level, with loop integrals rendered finite by correlation functions introduced in the nonlocal Lagrangian. Within the convolution framework, the proton strange helicity distribution is obtained using spin-flavor symmetry to constrain the input valence quark distributions in the hadronic intermediate states. The polarized strange quark distribution is found to be quite small, with the lowest moment of Δs negative, but consistent with recent global QCD analyses. ; Fangcheng He, Chueng-Ryong Ji, W. Melnitchouk, Y. Salamu, A.W. Thomas, P. Wang, and X. G. 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/DP180100497; Physical Review D, 2022; 105(9); https://hdl.handle.net/2440/135762; Thomas, A.W. [0000-0003-0026-499X]; Wang, X.G. [0000-0001-9164-0027] |
| DOI: | 10.1103/physrevd.105.094007 |
| Διαθεσιμότητα: | https://hdl.handle.net/2440/135762 https://doi.org/10.1103/physrevd.105.094007 |
| Rights: | Published by the 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 SCOAP. |
| Αριθμός Καταχώρησης: | edsbas.A02C4CAD |
| Βάση Δεδομένων: | BASE |
| ISSN: | 24700010 24700029 |
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| DOI: | 10.1103/physrevd.105.094007 |