prikaz prve stranice dokumenta Pion observables calculated in Minkowski and Euclidean spaces with Ansatze for quark propagators
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Scientific paper - Original scientific paper
Pion observables calculated in Minkowski and Euclidean spaces with Ansatze for quark propagators
Physical Review D, 107 (2023), 9; 094025. https://doi.org/10.1103/PhysRevD.107.094025
Kekez, D.; Klabučar, D.

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Kekez, D. & Klabučar, D. (2023). Pion observables calculated in Minkowski and Euclidean spaces with Ansatze for quark propagators. Physical Review D, 107. (9). doi: 10.1103/PhysRevD.107.094025

Kekez, D. and D. Klabučar. "Pion observables calculated in Minkowski and Euclidean spaces with Ansatze for quark propagators." Physical Review D, vol. 107, no. 9, 2023. https://doi.org/10.1103/PhysRevD.107.094025

Kekez, D. and D. Klabučar. "Pion observables calculated in Minkowski and Euclidean spaces with Ansatze for quark propagators." Physical Review D 107, no. 9 (2023). https://doi.org/10.1103/PhysRevD.107.094025

Kekez, D. and Klabučar, D. (2023) 'Pion observables calculated in Minkowski and Euclidean spaces with Ansatze for quark propagators', Physical Review D, 107(9). doi: 10.1103/PhysRevD.107.094025

Kekez D, Klabučar D. Pion observables calculated in Minkowski and Euclidean spaces with Ansatze for quark propagators. Physical Review D [Internet]. 2023 [cited 2024 November 03];107(9). doi: 10.1103/PhysRevD.107.094025

D. Kekez and D. Klabučar, "Pion observables calculated in Minkowski and Euclidean spaces with Ansatze for quark propagators", Physical Review D, vol. 107, no. 9, 2023. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:600573. [Accessed: 03 November 2024]

Metadata
Title (english)Pion observables calculated in Minkowski and Euclidean spaces with Ansatze for quark propagators
AuthorD. Kekez
AuthorD. Klabučar
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
We study two quark-propagator meromorphic Ansätze that admit a clear connection between calculations in Euclidean space and Minkowski spacetime. The connection is established through a modified Wick rotation in momentum space, where the integration contour along the imaginary axis is adequately deformed. The Ansätze were previously proposed in the literature and fitted to Euclidean lattice QCD data. The generalized impulse approximation is used to calculate the pion transition form factor and electromagnetic form factor, correcting an earlier result. The pion decay constant and distribution amplitude are also calculated. The latter is used to deduce the asymptotic behavior of the form factors. Such an asymptotic behavior is compared with those obtained directly from the generalized impulse approximation and the causes of differences are pointed out.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review D
Numberingvol. 107, no. 9, 094025
p-ISSN2470-0010
e-ISSN2470-0029
DOIhttps://doi.org/10.1103/PhysRevD.107.094025
URN:NBNurn:nbn:hr:217:600573
Publication2023
Document URLhttps://link.aps.org/doi/10.1103/PhysRevD.107.094025
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public notePublished 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 SCOAP3. Received 4 June 2020; accepted 27 April 2023; published 22 May 2023. .
Created on2024-07-22 11:45:41