Factorization breaking of four-quark condensates in the Nambu-Jona-Lasinio model

被引：9

作者：

Braghin, Fabio L. ^{[1
]}

Navarra, Fernando S. ^{[2
]}

机构：

[1] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go, Brazil

[2] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, Brazil

来源：

PHYSICAL REVIEW D | 2015年 / 91卷 / 07期

基金：

巴西圣保罗研究基金会;

关键词：

QCD SUM-RULES; VACUUM;

D O I：

10.1103/PhysRevD.91.074008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the factorization hypothesis of the four-quark condensate [q (q) over barq (q) over bar] = A [q (q) over bar](2) by considering the Nambu-Jona-Lasinio model supplemented with sixth- and eighth-order interactions. For that purpose we use the bosonization method with multiple auxiliary variables. We find that in a simplified U(1) version of the model factorization holds, whereas in the full U(3)-flavor version of the model, factorization is broken by terms which are related to the 't Hooft interaction.

引用

页数：11

共 50 条

[21] Neutral quark matter in a Nambu-Jona-Lasinio model with vector interaction
Abuki, H.
Gatto, R.
Ruggieri, M.
PHYSICAL REVIEW D, 2009, 80 (07):
[22] Quark-quark correlations in the nucleon in a generalized Nambu-Jona-Lasinio model
Szweda, J
Celenza, LS
Shakin, CM
Sun, WD
FEW-BODY SYSTEMS, 1996, 20 (3-4) : 93 - 127
[23] SOLITONS IN THE NAMBU-JONA-LASINIO MODEL
MEISSNER, T
GRUMMER, F
GOEKE, K
PHYSICS LETTERS B, 1989, 227 (3-4) : 296 - 300
[24] Decays ρ- → ηπ- and τ- → η(η′)π- ν in the Nambu-Jona-Lasinio model
Volkov, M. K.
Kostunin, D. G.
PHYSICAL REVIEW D, 2012, 86 (01):
[25] Strange-quark matter within the Nambu-Jona-Lasinio model
I. N. Mishustin
L. M. Satarov
H. Stöcker
W. Greiner
Physics of Atomic Nuclei, 2001, 64 : 802 - 811
[26] Magnetic catalysis of stability of quark matter in the Nambu-Jona-Lasinio model
K. G. Klimenko
D. Ebert
Physics of Atomic Nuclei, 2005, 68 : 124 - 130
[27] Inhomogeneous phases in the Nambu-Jona-Lasinio and quark-meson model
Nickel, Dominik
PHYSICAL REVIEW D, 2009, 80 (07):
[28] Magnetic catalysis of stability of quark matter in the Nambu-Jona-Lasinio model
Klimenko, KG
Ebert, D
PHYSICS OF ATOMIC NUCLEI, 2005, 68 (01) : 124 - 130
[29] 3-QUARK FADDEEV EQUATION IN THE NAMBU-JONA-LASINIO MODEL
ISHII, N
ASAMI, H
BENTZ, W
YAZAKI, K
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 1995, (120): : 323 - 327
[30] USE OF THE NAMBU-JONA-LASINIO MODEL IN THE CALCULATION OF THE DENSITY-DEPENDENCE OF 4-QUARK CONDENSATES
CELENZA, LS
SHAKIN, CM
SUN, WD
SZWEDA, J
PHYSICAL REVIEW C, 1995, 51 (02): : 937 - 949

← 1 2 3 4 5 →