Vis enkel innførsel

dc.contributor.authorAndersen, Jens Oluf
dc.contributor.authorMojahed, Martin Aria
dc.contributor.authorAdhikari, Prabal
dc.description.abstractWe consider two-flavor chiral perturbation theory (χPT) at finite isospin chemical potential μI and finite temperature T . We calculate the effective potential and the quark and pion condensates as functions of T and μI to nextto-leading order in the low-energy expansion in the presence of a pionic source. We map out the phase diagram in the μI –T plane. Numerically, we find that the transition to the pion-condensed phase is second order in the region of validity of χPT, which is in agreement with model calculations and lattice simulations. Finally, we calculate the pressure to two-loop order in the symmetric phase for nonzero μI and find that χPT seems to be converging very well.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleCondensates and pressure of two-flavor chiral perturbation theory at nonzero isospin and temperatureen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.source.journalEuropean Journal of Physicsen_US
dc.description.localcodeThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecomm

Tilhørende fil(er)


Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel

Navngivelse 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Navngivelse 4.0 Internasjonal