HEP Lattice·hep-lat
3 papers—3 primary·0 cross-listed·reconstructed*
A. Ali Khan🇩🇪 · M. Göckeler🇩🇪 · P. Hägler🇳🇱 · T.R. Hemmert🇩🇪 · R. Horsley🇬🇧 · A.C. Irving🇬🇧 · D. Pleiter🇩🇪 · P.E.L. Rakow🇬🇧 · A. Schäfer🇩🇪 · G. Schierholz🇩🇪 · H. Stüben🇩🇪 · J. Zanotti🇦🇺
We present preliminary results for the axial and tensor charge of the nucleon obtained from simulations with N_f=2 clover fermions. A comparison with chiral perturbation theory is attempted.
M. Göckeler🇩🇪 · P. Hägler🇳🇱 · R. Horsley🇬🇧 · D. Pleiter🇩🇪 · P.E.L. Rakow🇬🇧 · A. Schäfer🇩🇪 · G. Schierholz🇩🇪 · J.M. Zanotti🇩🇪
We present here the latest results from the QCDSF collaboration for (moments of) structure functions and generalized form factors in full QCD with Nf=2 O(a)-improved Wilson fermions based on simulations closer to the chiral and continuum limit.
Simulations of four-dimensional SU(2) lattice gauge theory are performed with partial axial gauge fixing trees spanning three of the four dimensions. The remaining SU(2) gauge symmetry, global in three directions and local in one, is found to break spontaneously at weak coupling, with the average fourth-dimension-pointing link in each perpendicular hyperplane as order parameter. The symmetry is restored at strong coupling. Symmetry breaking in each hyperplane appears to be independent, and occurs regardless of boundary conditions. The associated phase transition is likely coincident with the Polyakov loop transition.
* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.