Article
The strong coupling constant at small momentum as an instanton detector
Author/s | Boucaud, Ph.
Soto, F. de Le Yaouanc, A. Leroy, J. P. Micheli, J. Moutarde, H. Pène, Olivier Rodríguez Quintero, J. |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2003 |
Deposit Date | 2017-08-01 |
Published in |
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Abstract | We present a study of αMOM(p) at small p computed from the lattice in the quenched approximation (nf = 0). It shows a dramatic ∝ p4 law which can be understood within an instanton liquid model. In this framework the prefactor ... We present a study of αMOM(p) at small p computed from the lattice in the quenched approximation (nf = 0). It shows a dramatic ∝ p4 law which can be understood within an instanton liquid model. In this framework the prefactor gives a direct measure of the instanton density in thermalised configurations. A preliminary result for this density is 5.27(4) fm-4 |
Funding agencies | Fundación Cámara |
Project ID. | HPRN-CT-2000-00145
HF2000-0056 |
Citation | Boucaud, P., de Soto, F., Le Yaouanc, A., Leroy, J.P., Micheli, J., Moutarde, H.,...,Rodríguez Quintero, J. (2003). The strong coupling constant at small momentum as an instanton detector. Journal of High Energy Physics, 7 (4), 65-74. |
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