prikaz prve stranice dokumenta Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models
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Scientific paper - Original scientific paper
Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models
Physical Review D - Particles, Fields, Gravitation and Cosmology, 89 (2014), 1; 016007. https://doi.org/10.1103/PhysRevD.89.016007
Benić, Sanjin; Blaschke, David; Contrera, Gustavo; Horvatić, Davor

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Benić, S., Blaschke, D., Contrera, G. & Horvatić, D. (2014). Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models. Physical Review D - Particles, Fields, Gravitation and Cosmology, 89. (1). doi: 10.1103/PhysRevD.89.016007

Benić, Sanjin, et al. "Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models." Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 89, no. 1, 2014. https://doi.org/10.1103/PhysRevD.89.016007

Benić, Sanjin, David Blaschke, Gustavo Contrera and Davor Horvatić. "Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models." Physical Review D - Particles, Fields, Gravitation and Cosmology 89, no. 1 (2014). https://doi.org/10.1103/PhysRevD.89.016007

Benić, S., et al. (2014) 'Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models', Physical Review D - Particles, Fields, Gravitation and Cosmology, 89(1). doi: 10.1103/PhysRevD.89.016007

Benić S, Blaschke D, Contrera G, Horvatić D. Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models. Physical Review D - Particles, Fields, Gravitation and Cosmology [Internet]. 2014 [cited 2024 December 29];89(1). doi: 10.1103/PhysRevD.89.016007

S. Benić, D. Blaschke, G. Contrera and D. Horvatić, "Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models", Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 89, no. 1, 2014. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:918366. [Accessed: 29 December 2024]

Metadata
Title (english)Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models
AuthorSanjin Benić
AuthorDavid Blaschke
AuthorGustavo Contrera
AuthorDavor Horvatić
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
In this paper, we detail the thermodynamics of two-flavor nonlocal Polyakov–Nambu–Jona-Lasinio models for different parametrizations of the quark interaction regulators. The structure of the model is upgraded in order to allow for terms in the quark self-energy that violate Lorentz invariance due to the presence of the medium. We examine the critical properties, the phase diagram, and the equation of state. Furthermore, some aspects of the Mott effect for pions and sigma mesons are discussed explicitly within a nonlocal Polyakov–Nambu–Jona-Lasinio model. In particular, we continued the meson polarization function in the complex energy plane. Under certain approximations we were able to extract the imaginary part as a function of the meson energy. We were not able to calculate the dynamical meson mass and therefore resorted to a technical study of the temperature dependence of the meson width by replacing the meson energy with the temperature-dependent spatial meson mass. Our results show that, while the temperature behavior of the meson widths is qualitatively the same for a wide class of covariant regulators, the special case in which the nonlocal interactions are introduced via the instanton liquid model singles out with a drastically different behavior.
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. 89, no. 1, 016007
p-ISSN1550-7998
e-ISSN1550-2368
DOIhttps://doi.org/10.1103/PhysRevD.89.016007
URN:NBNurn:nbn:hr:217:918366
Publication2014
ProjectNumber: 119-0982930-1016
Title (croatian): Elementarne čestice, teorija polja i kozmologija
Leader: Ivica Picek
Jurisdiction: Croatia
Funding stream: ZP
Document URLhttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.89.016007
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2014) by the American Physical Society. Received 17 June 2013; revised manuscript received 28 October 2013; published 7 January 2014.
Created on2019-11-29 16:30:17