prikaz prve stranice dokumenta Axial anomaly and the interplay of quark loops with pseudoscalar and vector mesons in the γ∗→π+π0π− process
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Scientific paper - Original scientific paper
Axial anomaly and the interplay of quark loops with pseudoscalar and vector mesons in the γ∗→π+π0π− process
Physical Review D - Particles, Fields, Gravitation and Cosmology, 85 (2012), 3; 034042. https://doi.org/10.1103/PhysRevD.85.034042
Benić, Sanjin; Klabučar, Dubravko

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Benić, S. & Klabučar, D. (2012). Axial anomaly and the interplay of quark loops with pseudoscalar and vector mesons in the γ∗→π+π0π− process. Physical Review D - Particles, Fields, Gravitation and Cosmology, 85. (3). doi: 10.1103/PhysRevD.85.034042

Benić, Sanjin and Dubravko Klabučar. "Axial anomaly and the interplay of quark loops with pseudoscalar and vector mesons in the γ∗→π+π0π− process." Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 85, no. 3, 2012. https://doi.org/10.1103/PhysRevD.85.034042

Benić, Sanjin and Dubravko Klabučar. "Axial anomaly and the interplay of quark loops with pseudoscalar and vector mesons in the γ∗→π+π0π− process." Physical Review D - Particles, Fields, Gravitation and Cosmology 85, no. 3 (2012). https://doi.org/10.1103/PhysRevD.85.034042

Benić, S. and Klabučar, D. (2012) 'Axial anomaly and the interplay of quark loops with pseudoscalar and vector mesons in the γ∗→π+π0π− process', Physical Review D - Particles, Fields, Gravitation and Cosmology, 85(3). doi: 10.1103/PhysRevD.85.034042

Benić S, Klabučar D. Axial anomaly and the interplay of quark loops with pseudoscalar and vector mesons in the γ∗→π+π0π− process. Physical Review D - Particles, Fields, Gravitation and Cosmology [Internet]. 2012 [cited 2024 November 03];85(3). doi: 10.1103/PhysRevD.85.034042

S. Benić and D. Klabučar, "Axial anomaly and the interplay of quark loops with pseudoscalar and vector mesons in the γ∗→π+π0π− process", Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 85, no. 3, 2012. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:586170. [Accessed: 03 November 2024]

Metadata
Title (english)Axial anomaly and the interplay of quark loops with pseudoscalar and vector mesons in the γ∗→π+π0π− process
AuthorSanjin Benić
AuthorDubravko Klabučar
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
Motivated by the ongoing measurements of the Primakoff process π−γ∗→π−π0 by the COMPASS Collaboration at CERN, the transition form factor for the canonical anomalous process γ∗→π+π0π− is calculated in a constituent quark-loop model. The simplest contribution to this process is the quark “box” amplitude. In the present paper we also explicitly include the vector meson degrees of freedom, i.e., the ρ and the ω, thus giving rise to additional, resonant contributions. We find that in order to satisfy the axial anomaly result, a further subtraction in the resonant part is needed. The results are then compared with the vector meson dominance model as well as the Dyson-Schwinger calculations, the chiral perturbation theory result, and the available data.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review D - Particles, Fields, Gravitation and Cosmology
Numberingvol. 85, no. 3, 034042
p-ISSN1550-7998
e-ISSN1550-2368
DOIhttps://doi.org/10.1103/PhysRevD.85.034042
URN:NBNurn:nbn:hr:217:586170
Publication2012
ProjectNumber: 119-0982930-1016
Title (croatian): Elementarne čestice, teorija polja i kozmologija
Leader: Ivica Picek
Jurisdiction: Croatia
Funding stream: ZP
Document URLhttp://link.aps.org/doi/10.1103/PhysRevD.85.034042
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2012) by the American Physical Society. Received 15 September 2011; revised manuscript received 16 January 2012; published 28 February 2012.
Created on2019-11-16 10:06:56