Renormalization and resummation in the O(N) model

Research output: Contribution to journalArticle

Abstract

In the O(N) model for the large N expansion one needs resummation which makes the renormalization of the model difficult. In the paper it is discussed, how can one perform a consistent perturbation theory at zero as well as at finite temperature with the help of momentum dependent renormalization schemes.

Original languageEnglish
JournalNuclear Physics A
Volume820
Issue number1-4
DOIs
Publication statusPublished - Apr 1 2009

Fingerprint

perturbation theory
momentum
expansion
temperature

Keywords

  • 2PI resummation
  • O(N) model
  • renormalization schemes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Renormalization and resummation in the O(N) model. / Jakovác, A.

In: Nuclear Physics A, Vol. 820, No. 1-4, 01.04.2009.

Research output: Contribution to journalArticle

@article{b4b4e7784d6d484bb80cdbb0f1738251,
title = "Renormalization and resummation in the O(N) model",
abstract = "In the O(N) model for the large N expansion one needs resummation which makes the renormalization of the model difficult. In the paper it is discussed, how can one perform a consistent perturbation theory at zero as well as at finite temperature with the help of momentum dependent renormalization schemes.",
keywords = "2PI resummation, O(N) model, renormalization schemes",
author = "A. Jakov{\'a}c",
year = "2009",
month = "4",
day = "1",
doi = "10.1016/j.nuclphysa.2009.01.064",
language = "English",
volume = "820",
journal = "Nuclear Physics A",
issn = "0375-9474",
publisher = "Elsevier",
number = "1-4",

}

TY - JOUR

T1 - Renormalization and resummation in the O(N) model

AU - Jakovác, A.

PY - 2009/4/1

Y1 - 2009/4/1

N2 - In the O(N) model for the large N expansion one needs resummation which makes the renormalization of the model difficult. In the paper it is discussed, how can one perform a consistent perturbation theory at zero as well as at finite temperature with the help of momentum dependent renormalization schemes.

AB - In the O(N) model for the large N expansion one needs resummation which makes the renormalization of the model difficult. In the paper it is discussed, how can one perform a consistent perturbation theory at zero as well as at finite temperature with the help of momentum dependent renormalization schemes.

KW - 2PI resummation

KW - O(N) model

KW - renormalization schemes

UR - http://www.scopus.com/inward/record.url?scp=62549095370&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=62549095370&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysa.2009.01.064

DO - 10.1016/j.nuclphysa.2009.01.064

M3 - Article

AN - SCOPUS:62549095370

VL - 820

JO - Nuclear Physics A

JF - Nuclear Physics A

SN - 0375-9474

IS - 1-4

ER -