prikaz prve stranice dokumenta Axial gravity, massless fermions and trace anomalies
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Scientific paper - Original scientific paper
Axial gravity, massless fermions and trace anomalies
European Physical Journal C, 77 (2017), 8; 511. https://doi.org/10.1140/epjc/s10052-017-5071-7
Bonora, Loriano; Cvitan, Maro; Dominis Prester, Predrag; Duarte Pereira, Antonio; Giaccari, Stefano; Štemberga, Tamara

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Bonora, L., Cvitan, M., Dominis Prester, P., Duarte Pereira, A., Giaccari, S. & Štemberga, T. (2017). Axial gravity, massless fermions and trace anomalies. European Physical Journal C, 77. (8). doi: 10.1140/epjc/s10052-017-5071-7

Bonora, Loriano, et al. "Axial gravity, massless fermions and trace anomalies." European Physical Journal C, vol. 77, no. 8, 2017. https://doi.org/10.1140/epjc/s10052-017-5071-7

Bonora, Loriano, Maro Cvitan, Predrag Dominis Prester, Antonio Duarte Pereira, Stefano Giaccari and Tamara Štemberga. "Axial gravity, massless fermions and trace anomalies." European Physical Journal C 77, no. 8 (2017). https://doi.org/10.1140/epjc/s10052-017-5071-7

Bonora, L., et al. (2017) 'Axial gravity, massless fermions and trace anomalies', European Physical Journal C, 77(8). doi: 10.1140/epjc/s10052-017-5071-7

Bonora L, Cvitan M, Dominis Prester P, Duarte Pereira A, Giaccari S, Štemberga T. Axial gravity, massless fermions and trace anomalies. European Physical Journal C [Internet]. 2017 [cited 2024 November 29];77(8). doi: 10.1140/epjc/s10052-017-5071-7

L. Bonora, M. Cvitan, P. Dominis Prester, A. Duarte Pereira, S. Giaccari and T. Štemberga, "Axial gravity, massless fermions and trace anomalies", European Physical Journal C, vol. 77, no. 8, 2017. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:351250. [Accessed: 29 November 2024]

Metadata
Title (english)Axial gravity, massless fermions and trace anomalies
AuthorLoriano Bonora
AuthorMaro Cvitan
MBZ: 239520
AuthorPredrag Dominis Prester
MBZ: 209614
AuthorAntonio Duarte Pereira
AuthorStefano Giaccari
AuthorTamara Štemberga
Author's institutionUniversity of Zagreb
Faculty of Science
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
This article deals with two main topics. One is odd parity trace anomalies in Weyl fermion theories in a 4d curved background, the second is the introduction of axial gravity. The motivation for reconsidering the former is to clarify the theoretical background underlying the approach and complete the calculation of the anomaly. The reference is in particular to the difference between Weyl and massless Majorana fermions and to the possible contributions from tadpole and seagull terms in the Feynman diagram approach. A first, basic, result of this paper is that a more thorough treatment, taking account of such additional terms and using dimensional regularization, confirms the earlier result. The introduction of an axial symmetric tensor besides the usual gravitational metric is instrumental to a different derivation of the same result using Dirac fermions, which are coupled not only to the usual metric but also to the additional axial tensor. The action of Majorana and Weyl fermions can be obtained in two different limits of such a general configuration. The results obtained in this way confirm the previously obtained ones.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleEuropean Physical Journal C
Numberingvol. 77, no. 8, 511
p-ISSN1434-6044
e-ISSN1434-6052
DOIhttps://doi.org/10.1140/epjc/s10052-017-5071-7
URN:NBNurn:nbn:hr:217:351250
Publication2017
ProjectNumber: UIP-2013-11-8946
Title (croatian): Gravitacija i narušenje pariteta
Acronym: GRAPARION
Leader: Maro Cvitan
Jurisdiction: Croatia
Funding stream: UIP
Document URLhttps://link.springer.com/article/10.1140%2Fepjc%2Fs10052-017-5071-7
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© The Author(s) 2017. This article is an open access publication. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3. Received: 4 April 2017. Accepted: 13 July 2017. Published online: 01 August 2017.
Created on2020-02-29 18:06:50