Complex-mass renormalization in hadronic EFT: Applicability at two-loop order

被引：7

作者：

Djukanovic, D. ^{[1
]}

Epelbaum, E. ^{[2
]}

Gegelia, J. ^{[3
,4
,5
]}

Krebs, H. ^{[2
]}

Meissner, U. -G. ^{[3
,4
,6
,7
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Helmholtz Inst Mainz, D-55099 Mainz, Germany

[2] Ruhr Univ Bochum, Inst Theoret Phys 2, D-44780 Bochum, Germany

[3] Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys, D-52425 Julich, Germany

[4] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany

[5] Tbilisi State Univ, GE-0186 Tbilisi, Georgia

[6] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany

[7] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany

来源：

EUROPEAN PHYSICAL JOURNAL A | 2015年 / 51卷 / 08期

基金：

美国国家科学基金会;

关键词：

CHIRAL PERTURBATION-THEORY; INFRARED REGULARIZATION; MAGNETIC-MOMENT; ROPER RESONANCE; VECTOR-MESONS; NUCLEON; EXPANSION; LAGRANGIANS; INTEGRALS; SCHEME;

D O I：

10.1140/epja/i2015-15101-5

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We discuss the application of the complex-mass scheme to multi-loop diagrams in hadronic effective field theory by considering as an example a two-loop self-energy diagram. We show that the renormalized two-loop diagram satisfies the power counting.

引用

页数：5

共 32 条

[1] [Anonymous], HEPPH9607436
[2] COMPLEX-MASS SCHEME AND PERTURBATIVE UNITARITY
Bauer, T.
Gegelia, J.
[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2012, 27 (30):
[3] Magnetic moment of the Roper resonance
Bauer, T.
Gegelia, J.
Scherer, S.
[J]. PHYSICS LETTERS B, 2012, 715 (1-3) : 234 - 240
[4] Complex-mass scheme and resonances in EFT
Bauer, T. .
Djukanovic, D. .
Gegelia, J. .
Scherer, S. .
Tiator, L. .
[J]. 8TH INTERNATIONAL WORKSHOP ON THE PHYSICS OF EXCITED NUCLEONS (NSTAR 2011), 2012, 1432 : 269 - 272
[5] Baryon chiral perturbation theory in manifestly Lorentz invariant form
Becher, T
Leutwyler, H
[J]. EUROPEAN PHYSICAL JOURNAL C, 1999, 9 (04): : 643 - 671
[6] Asymptotic expansion of Feynman integrals near threshold
Beneke, M
Smirnov, VA
[J]. NUCLEAR PHYSICS B, 1998, 522 (1-2) : 321 - 344
[7] CHIRAL STRUCTURE OF THE NUCLEON
BERNARD, V
KAISER, N
KAMBOR, J
MEISSNER, UG
[J]. NUCLEAR PHYSICS B, 1992, 388 (02) : 315 - 345
[8] Infrared regularization for spin-1 fields
Bruns, PC
Meissner, UG
[J]. EUROPEAN PHYSICAL JOURNAL C, 2005, 40 (01): : 97 - 119
[9] Predictions for all processes e+e-→fermions+γ
Denner, A
Dittmaier, S
Roth, M
Wackeroth, D
[J]. NUCLEAR PHYSICS B, 1999, 560 (1-3) : 33 - 65
[10] The complex-mass scheme and unitarity in perturbative quantum field theory
Denner, Ansgar
Lang, Jean-Nicolas
[J]. EUROPEAN PHYSICAL JOURNAL C, 2015, 75 (08):

← 1 2 3 4 →