Chiral extrapolation of nucleon wave function normalization constants

Wein, P. and Bruns, P. C. and Hemmert, T. R. and Schaefer, A. (2011) Chiral extrapolation of nucleon wave function normalization constants. EUROPEAN PHYSICAL JOURNAL A, 47 (11): 149. ISSN 1434-6001,

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Abstract

Within the framework of two-flavor covariant baryon chiral perturbation theory we have expressed the Chernyak-Zhitnitsky, Ioffe and Dosch currents in terms of chiral fields to provide leading one-loop extrapolation formulae for the leading and next-to-leading twist normalization constants f(N), lambda(1) and lambda(2). Finite-volume effects due to pion loops have been taken into account. The occurring low-energy constants are fitted to data obtained from recent lattice QCD simulations in order to extract the values at the physical point.

Item Type: Article
Uncontrolled Keywords: PERTURBATION-THEORY; FINITE-VOLUME; SYMMETRY; QCD; MASS; FORM;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer
Depositing User: Dr. Gernot Deinzer
Date Deposited: 27 May 2020 05:55
Last Modified: 27 May 2020 05:55
URI: https://pred.uni-regensburg.de/id/eprint/19832

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