Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Lhpc"'
Autor:
LHPC Collaboration, Bratt, Jonathan D., Edwards, Robert G., Engelhardt, Michael, Hagler, Philipp, Lin, Huey-Wen, Lin, Mei-Feng, Meyer, Harvey B., Musch, Bernhard, Negele, John W., Orginos, Kostas, Pochinsky, Andrew V., Procura, Massimiliano, Richards, David G., Schroers, Wolfram, Syritsyn, Sergey N.
Publikováno v:
Phys.Rev.D82:094502,2010
We present high statistics results for the structure of the nucleon from a mixed-action calculation using 2+1 flavors of asqtad sea and domain wall valence fermions. We perform extrapolations of our data based on different chiral effective field theo
Externí odkaz:
http://arxiv.org/abs/1001.3620
Autor:
LHPC Collaboration, Schroers, Wolfram, Bratt, Jonathan D., Edwards, Robert G., Engelhardt, Michael, Fleming, George Taminga, Hagler, Philipp, Lin, Huey-Wen, Lin, Mei-Feng, Meyer, Harvey B., Musch, Bernhard, Negele, John W., Orginos, Kostas, Pochinsky, Andrew V., Procura, Massimiliano, Renner, Dru B., Richards, David G., Syritsyn, Sergey N., Walker-Loud, Andre P.
Publikováno v:
PoS LAT2009:142,2009
We present new high-statistics results for nucleon form factors at pion masses of approximately 290, 350, 500, and 600 MeV using a mixed action of domain wall valence quarks on an improved staggered sea. We perform chiral fits to both vector and axia
Externí odkaz:
http://arxiv.org/abs/0910.3816
Autor:
Musch, Bernhard U., Hägler, Philipp, Schäfer, Andreas, Renner, Dru B., Negele, John W., Collaboration, LHPC
Transverse momentum dependent parton distribution functions (TMDPDFs) encode information about the intrinsic motion of quarks inside the nucleon. They are important non-perturbative ingredients in our understanding of, e.g., azimuthal asymmetries and
Externí odkaz:
http://arxiv.org/abs/0811.1536
Autor:
Musch, Bernhard U., Hägler, Philipp, Schäfer, Andreas, Göckeler, Meinulf, Renner, Dru B., Negele, John W., Collaboration, LHPC
Publikováno v:
PoSLAT2007:155,2007
We present preliminary numerical studies in Lattice QCD related to the intrinsic transverse momentum distribution of partons in the nucleon. We employ non-local operators, consisting of spatially separated quark creation and annihilation operators co
Externí odkaz:
http://arxiv.org/abs/0710.4423
Autor:
LHPC Collaboration, Renner, D. B., Bratt, J., Edwards, R. G., Engelhardt, M., Fleming, G., Hägler, Ph., Musch, B., Negele, J. W., Orginos, K., Pochinsky, A. V., Richards, D. G., Schroers, W.
Publikováno v:
PoS LAT2007:160,2007
Moments of the generalized parton distributions of the nucleon, calculated with a mixed action of domain wall valence quarks and asqtad staggered sea quarks, are presented for pion masses extending down to 359 MeV. Results for the moments of the unpo
Externí odkaz:
http://arxiv.org/abs/0710.1373
Autor:
LHPC collaboration, Edwards, R. G., Fleming, G. T., Hagler, Ph., Negele, J. W., Orginos, K., Pochinsky, A., Renner, D. B., Richards, D. G., Schroers, W.
Publikováno v:
Phys.Rev.Lett.96:052001,2006
The nucleon axial charge is calculated as a function of the pion mass in full QCD. Using domain wall valence quarks and improved staggered sea quarks, we present the first calculation with pion masses as light as 354 MeV and volumes as large as (3.5
Externí odkaz:
http://arxiv.org/abs/hep-lat/0510062
Autor:
LHPC Collaboration, Edwards, Robert G., Fleming, George Taminga, Hagler, Philipp, Negele, John W., Orginos, Kostas, Pochinsky, Andrew V., Renner, Dru B., Richards, David G., Schroers, Wolfram
Publikováno v:
PoS LAT2005:056,2006
Generalized parton distributions encompass a wealth of information concerning the three-dimensional quark and gluon structure of the nucleon, and thus provide an ideal focus for the study of hadron structure using lattice QCD. The special limits corr
Externí odkaz:
http://arxiv.org/abs/hep-lat/0509185
Autor:
LHPC collaboration, Bistrovic, B., Edwards, R. G., Fleming, G., Hagler, Ph., Negele, J. W., Orginos, K., Pochinsky, A., Renner, D. B., Richards, D. G., Schroers, W.
Publikováno v:
Int.J.Mod.Phys.A21:720-725,2006
The structure of neutrons, protons, and other strongly interacting particles is now being calculated in full, unquenched lattice QCD with quark masses entering the chiral regime. This talk describes selected examples, including the nucleon axial char
Externí odkaz:
http://arxiv.org/abs/hep-lat/0509101
Autor:
LHPC, Collaborations, SESAM, Hagler, Ph., Negele, J. W., Renner, D. B., Schroers, W., Lippert, Th., Schilling, K.
Publikováno v:
Phys.Rev.Lett.93:112001,2004
This work presents the first calculation in lattice QCD of three moments of spin-averaged and spin-polarized generalized parton distributions in the proton. It is shown that the slope of the associated generalized form factors decreases significantly
Externí odkaz:
http://arxiv.org/abs/hep-lat/0312014
Autor:
LHPC Collaboration, Bonnet, Frederic D. R., Edwards, Robert G., Fleming, George T., Lewis, Randy, Richards, David G.
Publikováno v:
Nucl.Phys.Proc.Suppl.128:59-65,2004
We have started a program to compute the electromagnetic form factors of mesons. We discuss the techniques used to compute the pion form factor and present preliminary results computed with domain wall valence fermions on MILC asqtad lattices, as wel
Externí odkaz:
http://arxiv.org/abs/hep-lat/0312008