Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Cundy, N."'
Publikováno v:
PoS(LATTICE2014)047
We study the deconfinement transition in two-flavour lattice QCD with dynamical overlap fermions. Our simulations have been carried out on a $16^3 \times 6$ lattice at a pion mass around 500 MeV with a special HMC algorithm without any approximation
Externí odkaz:
http://arxiv.org/abs/1412.4341
Publikováno v:
Phys. Rev. D 90, 034501 (2014)
We study the influence of an external magnetic field on the deconfinement transition in two-flavour lattice QCD with physical quark charges. We use dynamical overlap fermions without any approximation such as fixed topology and perform simulations on
Externí odkaz:
http://arxiv.org/abs/1312.5628
Autor:
Bietenholz, W., Cundy, N., Gockeler, M., Horsley, R., Nakamura, Y., Pleiter, D., Rakow, P. E. L., Schierholz, G., Zanotti, J. M.
The delta-regime of QCD is characterised by light quarks in a small spatial box, but a large extent in (Euclidean) time. In this setting a specific variant of chiral perturbation theory - the delta-expansion - applies, based on a quantum mechanical t
Externí odkaz:
http://arxiv.org/abs/1103.3311
Autor:
Bietenholz, W., Cundy, N., Gockeler, M., Horsley, R., Perlt, H., Pleiter, D., Rakow, P. E. L., Schierholz, G., Schiller, A., Streuer, T., Zanotti, J. M.
Publikováno v:
J.Phys.Conf.Ser.239:012011,2010
Quantum Chromodynamics (QCD) is generally assumed to be the fundamental theory underlying nuclear physics. In recent years there is progress towards investigating the nucleon structure from first principles of QCD. Although this structure is best rev
Externí odkaz:
http://arxiv.org/abs/1004.2100
Autor:
Bietenholz, W., Bornyakov, V., Cundy, N., Göckeler, M., Horsley, R., Kennedy, A. D., Lockhart, W. G., Nakamura, Y., Perlt, H., Pleiter, D., Rakow, P. E. L., Schäfer, A., Schierholz, G., Schiller, A., Stüben, H., Zanotti, J. M.
Publikováno v:
Phys.Lett.B690:436-441,2010
QCD lattice simulations with 2+1 flavours typically start at rather large up-down and strange quark masses and extrapolate first the strange quark mass to its physical value and then the up-down quark mass. An alternative method of tuning the quark m
Externí odkaz:
http://arxiv.org/abs/1003.1114
Autor:
Bietenholz, W., Cundy, N., Göckeler, M., Horsley, R., Perlt, H., Pleiter, D., Rakow, P. E. L., Schierholz, G., Schiller, A., Streuer, T., Zanotti, J. M.
Publikováno v:
PoS LAT2009:139,2009
We have reported elsewhere in this conference on our continuing project to determine non-perturbative Wilson coefficients on the lattice, as a step towards a completely non-perturbative determination of the nucleon structure. In this talk we discuss
Externí odkaz:
http://arxiv.org/abs/0911.4892
Autor:
Bietenholz, W., Bornyakov, V., Cundy, N., Göckeler, M., Horsley, R., Kennedy, A. D., Nakamura, Y., Perlt, H., Pleiter, D., Rakow, P. E. L., Schäfer, A., Schierholz, G., Schiller, A., Stüben, H., Zanotti, J. M.
Publikováno v:
PoS LAT2009:102,2009
QCD results are presented for a 2+1 flavour fermion clover action (which we call the SLiNC action). A method of tuning the quark masses to their physical values is discussed. In this method the singlet quark mass is kept fixed, which solves the probl
Externí odkaz:
http://arxiv.org/abs/0910.2963
Autor:
Bietenholz, W., Cundy, N., Goeckeler, M., Horsley, R., Perlt, H., Pleiter, D., Rakow, P. E. L., Schierholz, G., Schiller, A., Streuer, T., Zanotti, J. M.
Publikováno v:
PoS LAT2009:138,2009
Nucleon structure functions can be observed in Deep Inelastic Scattering experiments, but it is an outstanding challenge to confront them with fully non-perturbative QCD results. For this purpose we investigate the product of electromagnetic currents
Externí odkaz:
http://arxiv.org/abs/0910.2437
Autor:
Cundy, N., Göckeler, M., Horsley, R., Kaltenbrunner, T., Kennedy, A. D., Nakamura, Y., Perlt, H., Pleiter, D., Rakow, P. E. L., Schäfer, A., Schierholz, G., Schiller, A., Stüben, H., Zanotti, J. M.
Publikováno v:
Phys.Rev.D79:094507,2009
We discuss a 3-flavour lattice QCD action with clover improvement in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term. With the (tree-level) Symanzik improved gluon actio
Externí odkaz:
http://arxiv.org/abs/0901.3302
Autor:
Cundy, N., Göckeler, M., Horsley, R., Kaltenbrunner, T., Kennedy, A. D., Nakamura, Y., Perlt, H., Pleiter, D., Rakow, P. E. L., Schäfer, A., Schierholz, G., Schiller, A., Stüben, H., Zanotti, J. M.
Publikováno v:
PoS LATTICE2008:132,2008
We discuss an action in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term. With the (tree level) Symanzik improved gluon action this constitutes the Stout Link Non-perturb
Externí odkaz:
http://arxiv.org/abs/0811.2355