We explore the anomaly induced effective QCD meson potential in the framework of the effective Lagrangian approach. We suggest a decoupling procedure, when a flavored quark becomes massive, which mimics the one employed by Seiberg for supersymmetric gauge theories. It is seen that, after decoupling, the QCD potential naturally converts to the one with one less flavor. We study the Nc and Nf dependence of the η′ mass. © 1998 Elsevier Science B.V. All rights reserved.
Anomaly induced QCD potential and quark decoupling / Hsu, S. D. H.; Sannino, F.; Schechter, J.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 427:3-4(1998), pp. 300-306. [10.1016/S0370-2693(98)00356-6]
Anomaly induced QCD potential and quark decoupling
Sannino F.
Writing – Original Draft Preparation
;
1998
Abstract
We explore the anomaly induced effective QCD meson potential in the framework of the effective Lagrangian approach. We suggest a decoupling procedure, when a flavored quark becomes massive, which mimics the one employed by Seiberg for supersymmetric gauge theories. It is seen that, after decoupling, the QCD potential naturally converts to the one with one less flavor. We study the Nc and Nf dependence of the η′ mass. © 1998 Elsevier Science B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
