We calculate the baryon octet masses to fourth order in chiral perturbation theory employing dimensional and cut-off regularization. We analyze the pion and kaon mass dependences of the baryon masses based on the MILC data. We show that chiral perturbation theory gives stable chiral extrapolation functions for pion (kaon) masses below 550 (600) MeV. The pion-nucleon sigma in SU(3) is also inves...

(Fermilab Lattice and MILC Collaborations) Physics Department, Brookhaven National Laboratory, Upton, NY, USA Department of Physics, Washington University, St. Louis, Missouri, USA Department of Physics, The Ohio State University, Columbus, Ohio, USA Physics Department, University of Utah, Salt Lake City, Utah, USA Physics Department, University of Illinois, Urbana, Illinois, USA Department of ...

The lower overhead associated with one-sided messaging as compared to traditional two-sided communication has the potential to increase the performance at scale of scientific applications by increasing the effective network bandwidth and reducing synchronization overheads. In this work, we investigate both the programming effort required to modify existing MPI applications to exploit one-sided ...

We present the first lattice-QCD calculation of unpolarized strange and charm parton distribution functions using large-momentum effective theory. use a lattice ensemble with ($2+1+1$) flavors highly improved staggered quarks generated by MILC Collaboration, spacing $a\ensuremath{\approx}0.12\text{ }\text{ }\mathrm{fm}$ ${M}_{\ensuremath{\pi}}\ensuremath{\approx}310\text{ }\mathrm{MeV}$, clover...

We present the first lattice QCD calculation of distribution amplitudes longitudinally and transversely polarized vector mesons $K^*$ $\phi$ using large momentum effective theory. use clover fermion action on three ensembles with 2+1+1 flavors highly improved staggered quarks (HISQ) action, generated by MILC collaboration, at physical pion mass \{0.06, 0.09, 0.12\} fm spacings, choose different...

We present the nonperturbatively renormalized nucleon gluon momentum fraction using ensembles with $2+1+1$ flavors of highly improved staggered quarks (HISQ), generated by MILC Collaboration. The calculation is done clover fermions for valence action three pion masses, 220, 310, and 690 MeV, lattice spacings, 0.09, 0.12, 0.15 fm. renormalization RI/MOM nonperturbative cluster-decomposition erro...

C. Bernard, T. DeGrand, C. DeTar, Steven Gottlieb, Urs M. Heller, J. E. Hetrick, N. Ishizuka, C. McNeile, K. Rummukainen, R. Sugar, D. Toussaint, M. Wingate Washington University, St. Louis, Missouri 63130, USA University of Colorado, Boulder, Colorado 80309, USA University of Utah, Salt Lake City, Utah 84112, USA Indiana University, Bloomington, Indiana 47405, USA SCRI, The Florida State Unive...

A. Bazavov, W. Freeman and D. Toussaint Department of Physics, University of Arizona, Tucson, AZ 85721, USA C. Bernard, X. Du and J. Laiho Department of Physics, Washington University, St. Louis, MO 63130, USA C. DeTar, L. Levkova and M.B. Oktay Physics Department, University of Utah, Salt Lake City, UT 84112, USA Steven Gottlieb Department of Physics, Indiana University, Bloomington, IN 47405,...