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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2005, Volume 82, Issue 1, Pages 3–7
(Mi jetpl1495)
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This article is cited in 15 scientific papers (total in 15 papers)
FIELDS, PARTICLES, AND NUCLEI
Singlet $VA\widetilde V$ correlator within the instanton vacuum model
A. E. Dorokhov Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
Abstract:
The correlator of singlet axial-vector and vector currents in the external electromagnetic field is studied within the instanton liquid model of QCD vacuum. In the chiral limit we calculate the longitudinal $w_L^{(0)}$ and transversal $w_T^{(0)}$ with respect to axial-vector index invariant amplitudes at arbitrary space-like momentum transfer $q$. It is demonstrated how the anomalous longitudinal part of the correlator is renormalized at low momenta due to the presence of the $U_A(1)$ anomaly.
Received: 30.05.2005
Citation:
A. E. Dorokhov, “Singlet $VA\widetilde V$ correlator within the instanton vacuum model”, Pis'ma v Zh. Èksper. Teoret. Fiz., 82:1 (2005), 3–7; JETP Letters, 82:1 (2005), 1–6
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https://www.mathnet.ru/eng/jetpl1495 https://www.mathnet.ru/eng/jetpl/v82/i1/p3
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Abstract page: | 227 | Full-text PDF : | 66 | References: | 51 |
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