出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present results for the strangeness contribution to the nucleon, hN|¯ ss|Ni and to the spin of the
nucleon, Ds. By combining several variance reduction techniques for all-to-all propagators we are
able to obtain gains in terms of computer time of factors of 25–30 for the disconnected loop that
is needed within the calculation of Ds, relative to the standard approach of just employing time
partitioning/dilution . For hN|¯ ss|Ni, the error is dominated by the gauge noise.
