Zobrazeno 1 - 10
of 29
pro vyhledávání: '"LHPC collaboration"'
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:
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 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
Autor:
LHPC Collaboration, SESAM Collaboration, Negele, J. W., Brower, R. C., Dreher, P., Edwards, R., Fleming, G., Hagler, Ph., Lippert, Th., Pochinsky, A. V., Renner, D. B., Richards, D., Schilling, K., Schroers, W.
Publikováno v:
Nucl.Phys.Proc.Suppl.129:910-912,2004
The lowest three moments of generalized parton distributions are calculated in full QCD and provide new insight into the behavior of nucleon electromagnetic form factors, the origin of the nucleon spin, and the transverse structure of the nucleon.
Externí odkaz:
http://arxiv.org/abs/hep-lat/0309060
Autor:
LHPC Collaboration, Richards, D. G., Collaboration, QCDSF, Gockeler, M., Horsley, R., Pleiter, D., Rakow, P. E. L., Schierholz, G., Collaboration, UKQCD, Maynard, C. M.
We present a calculation of the lowest-lying baryon masses in the quenched approximation to QCD. The calculations are performed using a non-perturbatively improved clover fermion action, and a splitting is found between the masses of the nucleon and
Externí odkaz:
http://arxiv.org/abs/nucl-th/0206049
Autor:
LHPC Collaboration, SESAM Collaboration, Dolgov, D., Brower, R., Capitani, S., Dreher, P., Negele, J. W., Pochinsky, A., Renner, D. B., Eicker, N., Lippert, Th., Schilling, K., Edwards, R. G., Heller, U. M.
Publikováno v:
Phys.Rev.D66:034506,2002
Moments of the quark density, helicity, and transversity distributions are calculated in unquenched lattice QCD. Calculations of proton matrix elements of operators corresponding to these moments through the operator product expansion have been perfo
Externí odkaz:
http://arxiv.org/abs/hep-lat/0201021