Quenched spectroscopy with fixed-point and chirally improved fermions
作者： Christof Gattringer , Meinulf Göckeler , Peter Hasenfratz , Simon Hauswirth , Kieran Holland
DOI: 10.1016/J.NUCLPHYSB.2003.10.044
关键词: Fermion 、 Physics 、 Scaling 、 Quantum electrodynamics 、 Quark 、 Lattice gauge theory 、 Baryon 、 Hadron spectroscopy 、 Dirac (software) 、 Particle physics 、 Meson
摘要: Abstract We present results from quenched spectroscopy calculations with the parametrized fixed-point and chirally improved Dirac operators. Both these operators are approximate solutions of Ginsparg–Wilson equation have good chiral properties. This allows us to work at small quark masses we explore pseudoscalar-mass vector-mass ratios down 0.28. discuss meson baryon masses, their scaling properties, finite volume effects compare our recent large scale simulations. find that size quenching artifacts is strongly correlated experimentally observed widths gauge hadronic scales consistent.
harvard.edu
arxiv.org
elsevier.com
sci-hub.se 参考文章(98)
M. Lüscher, P. Weisz, Erratum: ``On-shell improved lattice gauge theories'' Communications in Mathematical Physics. ,vol. 98, pp. 433- 433 ,(1985)
C. Best, M. Göckeler, R. Horsley, E.-M. Ilgenfritz, H. Perlt, P. Rakow, A. Schäfer, G. Schierholz, A. Schiller, S. Schramm, Pion and Rho Structure Functions from Lattice QCD Physical Review D. ,vol. 56, pp. 2743- 2754 ,(1997) , 10.1103/PHYSREVD.56.2743
David B. Kaplan, A Method for simulating chiral fermions on the lattice Physics Letters B. ,vol. 288, pp. 342- 347 ,(1992) , 10.1016/0370-2693(92)91112-M
K. Orginos, W. Bietenholz, R. Brower, S. Chandrasekharan, U.-J. Wiese, The perfect quark-gluon vertex function Nuclear Physics B - Proceedings Supplements. ,vol. 63, pp. 904- 906 ,(1998) , 10.1016/S0920-5632(97)00936-5
S. J. Dong, T. Draper, I. Horváth, F. X. Lee, K. F. Liu, J. B. Zhang, Chiral properties of pseudoscalar mesons on a quenched 20 4 lattice with overlap fermions Physical Review D. ,vol. 65, pp. 054507- ,(2002) , 10.1103/PHYSREVD.65.054507
P. Hasenfratz, T. Jörg, S. Hauswirth, K. Holland, F. Niedermayer, Testing the fixed-point QCD action and the construction of chiral currents Nuclear Physics. ,vol. 643, pp. 280- 320 ,(2002) , 10.1016/S0550-3213(02)00742-3
S. Aoki, T. Umemura, M. Fukugita, N. Ishizuka, H. Mino, M. Okawa, A. Ukawa, Finite-size effects of hadron masses in lattice QCD: A comparative study for quenched and full QCD simulations Physical Review D. ,vol. 50, pp. 486- 494 ,(1994) , 10.1103/PHYSREVD.50.486
C. Rebbi, C. Hoelbling, L. Giusti, Quenched results for light quark physics with overlap fermions Nuclear Physics B - Proceedings Supplements. ,vol. 106, pp. 739- 747 ,(2002) , 10.1016/S0920-5632(01)01832-1
Herbert Neuberger, More about exactly massless quarks on the lattice Physics Letters B. ,vol. 427, pp. 353- 355 ,(1998) , 10.1016/S0370-2693(98)00355-4
Christof Gattringer, Roland Hoffmann, Stefan Schaefer, Setting the scale for the Lüscher-Weisz action Physical Review D. ,vol. 65, pp. 094503- ,(2002) , 10.1103/PHYSREVD.65.094503