Zobrazeno 1 - 10
of 61
pro vyhledávání: '"James Edward Hetrick"'
Autor:
I. F. Allison, D. Renner, M. Nobes, Andreas S. Kronfeld, Aida X. El-Khadra, Howard D. Trottier, James C. Osborn, Steven Gottlieb, James N. Simone, Ludmila Levkova, E. D. Freeland, M. Di Pierro, D. Menscher, Claude Bernard, Eric B. Gregory, Urs M. Heller, Alan Gray, Carleton DeTar, F. Maresca, C. Aubin, Robert L. Sugar, James Edward Hetrick, Doug Toussaint, Christine Davies, Paul B. Mackenzie, M. B. Oktay, M. Okamoto
Publikováno v:
S. Kronfeld, A, F. Allison, I, Aubin, C, Bernard, C, T. H. Davies, C, DeTar, C, Di Pierro, M, D. Freeland, E, Gottlieb, S, Gray, A, Gregory, E, M. Heller, U, E. Hetrick, J, X. El-Khadra, A, Levkova, L, B. Mackenzie, P, Maresca, F, Menscher, D, Nobes, M, Okamoto, M, B. Oktay, M, Osborn, J, Renner, D, N. Simone, J, Sugar, R, Toussaint, D & D. Trottier, H 2005, ' Predictive Lattice QCD ', International Journal of Modern Physics A, vol. 21, no. 04, pp. 713-719 . https://doi.org/10.1142/S0217751X06031934
In the past year, we calculated with lattice QCD three quantities that were unknown or poorly known. They are the q2 dependence of the form factor in semileptonic D → Klν decay, the decay constant of the D meson, and the mass of the Bc meson. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1eee758067239e69687362bc93fa1eab
https://doi.org/10.1142/s0217751x06031934
https://doi.org/10.1142/s0217751x06031934
Autor:
James Edward Hetrick, Ludmila Levkova, Urs M. Heller, Robert L. Sugar, James C. Osborn, Carleton DeTar, Doug Toussaint, Jack Laiho, Ran Zhou, J. Foley, Claude Bernard, R. S. Van de Water, Alexei Bazavov, Steven Gottlieb
Publikováno v:
Proceedings of 31st International Symposium on Lattice Field Theory LATTICE 2013 — PoS(LATTICE 2013).
We present recent results on the QCD equation of state with 2+1+1 flavors of highly improved staggered quarks (HISQ). We focus on three sets of ensembles with temporal extent 6, 8 and 10, that reach up to temperatures of 967, 725 and 580 MeV, respect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d23f62ccca11986af44c145274dd1868
https://doi.org/10.22323/1.187.0154
https://doi.org/10.22323/1.187.0154
Autor:
James Edward Hetrick
Publikováno v:
Proceedings of 31st International Symposium on Lattice Field Theory LATTICE 2013 — PoS(LATTICE 2013).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2abe9020183b3c2133d9baf3015a60ce
https://doi.org/10.22323/1.187.0102
https://doi.org/10.22323/1.187.0102
Autor:
James Edward Hetrick, Steven Gottlieb, Alexei Bazavov, R. S. Van de Water, Jongjeong Kim, Urs M. Heller, Si-Wei Qiu, Robert L. Sugar, Carleton DeTar, Jack Laiho, M. Lightman, Claude Bernard, James C. Osborn, D. Toussaint, J. Foley, Walter Freeman, L. Levkova, Ran Zhou
Publikováno v:
Physical Review Letters. 110
A calculation of the ratio of leptonic decay constants ${f}_{{K}^{+}}/{f}_{{\ensuremath{\pi}}^{+}}$ makes possible a precise determination of the ratio of Cabibbo-Kobayashi-Maskawa (CKM) matrix elements $|{V}_{\mathrm{us}}|/|{V}_{\mathrm{ud}}|$ in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cde436012fc47aa152835a0ebba06a1d
https://doi.org/10.1103/physrevlett.110.172003
https://doi.org/10.1103/physrevlett.110.172003
Autor:
Carleton DeTar, D. Toussaint, Kari Rummukainen, Urs M. Heller, Tom Blum, Robert L. Sugar, James Edward Hetrick, Claude Bernard, Steven Gottlieb
Publikováno v:
Physical Review D. 54:4585-4594
We present results of an ongoing study of the nature of the high temperature crossover in QCD with two light fermion flavors. These results are obtained with the conventional staggered fermion action at the smallest lattice spacing to date, approxima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e690a4f2871a96c2a2bf83bd1669b96e
https://doi.org/10.1103/physrevd.54.4585
https://doi.org/10.1103/physrevd.54.4585
Publikováno v:
Physical Review D. 53:7255-7259
The Schwinger model (QED{sub 2}) with {ital N} flavors of massive fermions on a circle of circumference {ital L}, or equivalently at finite temperature {ital T}, is reduced to a quantum-mechanical system of {ital N}{minus}1 degrees of freedom. With d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f12af669235a5363b0d2683088d8c34
https://doi.org/10.1103/physrevd.53.7255
https://doi.org/10.1103/physrevd.53.7255
Autor:
James Edward Hetrick, Doug Toussaint, Thomas DeGrand, Robert L. Sugar, Claude Bernard, Urs M. Heller, Carleton DeTar, James C. Osborn, Anna Hasenfratz, T. Burch, Eric Brittain Gregory, Steven Gottlieb
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 119:991-993
As a test of the chiral properties of the improved Asqtad (staggered fermion) action, we have been measuring the topological susceptibility as a function of quark masses for 2 + 1 dynamical flavors. We report preliminary results, which show reasonabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5aa32260160ab1b096d255f81e4b8ca8
https://doi.org/10.1016/s0920-5632(03)01740-7
https://doi.org/10.1016/s0920-5632(03)01740-7
Autor:
S. Gottlieb, Thomas DeGrand, Robert L. Sugar, D. Toussaint, Urs M. Heller, James Edward Hetrick, Anna Hasenfratz, Claude Bernard, T. Burch, Eric Brittain Gregory, Carleton DeTar, James C. Osborn
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 119:769-771
We present a comparison of two highly optimized methods for extracting the topological charge density of a lattice based on smoothing away non-topological fluctuations. The methods are Improved Cooling and Hypercubic Smearing. We find that while the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7bb04d46d546ec1c2896dbf21b3c12c
https://doi.org/10.1016/s0920-5632(03)80463-2
https://doi.org/10.1016/s0920-5632(03)80463-2
Autor:
J. Foley, Steven Gottlieb, Claude Bernard, Carleton DeTar, D. Du, Andreas S. Kronfeld, Elvira Gamiz, R. S. Van de Water, Paul B. Mackenzie, J. N. Simone, Jack Laiho, M. Lightman, Robert L. Sugar, E. D. Freeland, Jongjeong Kim, M. B. Oktay, Urs M. Heller, Aida X. El-Khadra, D. Toussaint, James Edward Hetrick, Ethan T. Neil, Ludmila Levkova, Alexei Bazavov, Ran Zhou, Chris Bouchard
Publikováno v:
Proceedings of The 30th International Symposium on Lattice Field Theory — PoS(Lattice 2012).
We present our methods to fit the two point correlators for light, strange, and charmed pseudoscalar meson physics with the highly improved staggered quark (HISQ) action. We make use of the least-squares fit including the full covariance matrix of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7264cdbd0c90865ea6a98d8a20edbcc8
https://doi.org/10.22323/1.164.0158
https://doi.org/10.22323/1.164.0158
Autor:
Steven Gottlieb, Aida X. El-Khadra, Paul B. Mackenzie, Jack Laiho, M. B. Oktay, Ludmila Levkova, Ran Zhou, Alexei Bazavov, Claude Bernard, Elvira Gamiz, Chris Bouchard, Andreas S. Kronfeld, R. S. Van de Water, J. Foley, Jongjeong Kim, M. Lightman, Daping Du, Carleton DeTar, James Edward Hetrick, James N. Simone, Ethan T. Neil, Robert L. Sugar, Doug Toussaint, E. D. Freeland, Urs M. Heller
We present preliminary results for light, strange and charmed pseudoscalar meson physics from simulations using four flavors of dynamical quarks with the highly improved staggered quark (HISQ) action. These simulations include lattice spacings rangin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e91d39b994adae11d1802c0179e806cb
http://arxiv.org/abs/1210.8431
http://arxiv.org/abs/1210.8431
