caa a22 4500 465800459 CHVBK 20180323112051.0 cr unu---uuuuu 170327e19900301xx s 000 0 eng 10.1007/BF01904166 doi (NATIONALLICENCE)springer-10.1007/BF01904166 Regularization scheme dependence of vacuum observables in the Nambu-Jona-Lasinio model [Elektronische Daten] [Th. Meissner, E. Arriola, K. Goeke] We consider a bosonized version of the Nambu-Jona-Lasinio model consisting of classical scalar and pseudoscalar fields. Various regularization schemes (sharp covariant and non-covariant, proper-time and Pauli-Villars) are used in order to determine ultraviolet divergent vacuum observables such as the quark condensate 〈¯qq〉 and the current quark mass. Both quantities turn out to be very sensitive to the special choice of the scheme applied. Without further modification the proper-time and Pauli-Villars scheme appear to be unable to reproduce simultaneously the commonly used values of the quark condensate and the current quark mass. Springer-Verlag, 1990 13.40 nationallicence Meissner Th Institut für Theoretische Physik II, Ruhr-Universität Bochum, Federal Republic of Germany aut Arriola E. Institut für Theoretische Physik II, Ruhr-Universität Bochum, Federal Republic of Germany aut Goeke K. Institut für Theoretische Physik II, Ruhr-Universität Bochum, Federal Republic of Germany aut Zeitschrift für Physik A Atomic Nuclei Springer-Verlag 336/1(1990-03-01), 91-96 0939-7922 336:1<91 1990 336 218 https://doi.org/10.1007/BF01904166 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01904166 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Meissner Th Institut für Theoretische Physik II, Ruhr-Universität Bochum, Federal Republic of Germany aut NATIONALLICENCE 700 1- Arriola E. Institut für Theoretische Physik II, Ruhr-Universität Bochum, Federal Republic of Germany aut NATIONALLICENCE 700 1- Goeke K. Institut für Theoretische Physik II, Ruhr-Universität Bochum, Federal Republic of Germany aut NATIONALLICENCE 773 0- Zeitschrift für Physik A Atomic Nuclei Springer-Verlag 336/1(1990-03-01), 91-96 0939-7922 336:1<91 1990 336 218 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer