Zobrazeno 1 - 10
of 800
pro vyhledávání: '"Foley, J. P."'
Autor:
MILC Collaboration, Basak, S., Bazavov, A., Bernard, C., DeTar, C., Freeland, E., Foley, J., Gottlieb, Steven, Heller, U. M., Komijani, J., Laiho, J., Levkova, L., Osborn, J., Sugar, R. L., Torok, A., Toussaint, D., Van de Water, R. S., Zhou, R.
The MILC Collaboration has completed production running of electromagnetic effects on light mesons using asqtad improved staggered quarks. In these calculations, we use quenched photons in the noncompact formalism. We study four lattice spacings from
Externí odkaz:
http://arxiv.org/abs/1606.01228
Autor:
MILC Collaboration, Basak, S., Bazavov, A., Bernard, C., DeTar, C., Freeland, E., Foley, J., Gottlieb, Steven, Heller, U. M., Komijani, J., Laiho, J., Levkova, L., Li, R., Osborn, J., Sugar, R. L., Torok, A., Toussaint, D., Van de Water, R. S., Zhou, R.
Publikováno v:
S Basak 2015 J. Phys.: Conf. Ser. 640 012052
For some time, the MILC Collaboration has been studying electromagnetic effects on light mesons. These calculations use fully dynamical QCD, but only quenched photons, which suffices to NLO in XPT. That is, the sea quarks are electrically neutral, wh
Externí odkaz:
http://arxiv.org/abs/1510.04997
Autor:
Bailey, Jon A., Bazavov, A., Bernard, C., Bouchard, C. M., DeTar, C., Du, Daping, El-Khadra, A. X., Foley, J., Freeland, E. D., Gámiz, E., Gottlieb, Steven, Heller, U. M., Jain, R. D., Komijani, J., Kronfeld, A. S., Laiho, J., Levkova, L., Liu, Yuzhi, Mackenzie, P. B., Meurice, Y., Neil, E. T., Qiu, Si-Wei, Simone, J. N., Sugar, R., Toussaint, D., Van de Water, R. S., Zhou, Ran
Publikováno v:
Phys. Rev. D 93, 025026 (2016)
We compute the form factors for the $B \to Kl^+l^-$ semileptonic decay process in lattice QCD using gauge-field ensembles with 2+1 flavors of sea quark, generated by the MILC Collaboration. The ensembles span lattice spacings from 0.12 to 0.045 fm an
Externí odkaz:
http://arxiv.org/abs/1509.06235
Autor:
Lattice, Fermilab, Collaborations, MILC, Bailey, Jon A., Bazavov, A., Bernard, C., Bouchard, C. M., DeTar, C., Du, Daping, El-Khadra, A. X., Foley, J., Freeland, E. D., Gámiz, E., Gottlieb, Steven, Heller, U. M., Komijani, J., Kronfeld, A. S., Laiho, J., Levkova, L., Liu, Yuzhi, Mackenzie, P. B., Meurice, Y., Neil, E. T., Qiu, Si-Wei, Simone, J., Sugar, R., Toussaint, D., Van de Water, R. S., Zhou, Ran
Publikováno v:
Phys. Rev. D 92, 014024 (2015)
We present a lattice-QCD calculation of the $B\to\pi\ell\nu$ semileptonic form factors and a new determination of the CKM matrix element $|V_{ub}|$. We use the MILC asqtad 2+1-flavor lattice configurations at four lattice spacings and light-quark mas
Externí odkaz:
http://arxiv.org/abs/1503.07839
Autor:
Lattice, Fermilab, Collaborations, MILC, Bailey, Jon A., Bazavov, A., Bernard, C., Bouchard, C. M., DeTar, C., Du, Daping, El-Khadra, A. X., Foley, J., Freeland, E. D., Gámiz, E., Gottlieb, Steven, Heller, U. M., Komijani, J., Kronfeld, A. S., Laiho, J., Levkova, L., Mackenzie, P. B., Neil, E. T., Qiu, Si-Wei, Simone, J., Sugar, R., Toussaint, D., Van de Water, R. S., Zhou, Ran
Publikováno v:
Phys. Rev. D 92, 034506 (2015)
We present the first unquenched lattice-QCD calculation of the hadronic form factors for the exclusive decay $\overline{B} \rightarrow D \ell \overline{\nu}$ at nonzero recoil. We carry out numerical simulations on fourteen ensembles of gauge-field c
Externí odkaz:
http://arxiv.org/abs/1503.07237
Autor:
MILC Collaboration, Bazavov, A., Bernard, C., Brown, N., DeTar, C., Foley, J., Gottlieb, Steven, Heller, U. M., Komijani, J., Laiho, J., Levkova, L., Sugar, R. L., Toussaint, D., Van de Water, R. S.
Publikováno v:
Phys. Rev. D 93, 094510 (2016)
We report on a scale determination with gradient-flow techniques on the $N_f=2+1+1$ highly improved staggered quark ensembles generated by the MILC Collaboration. The ensembles include four lattice spacings, ranging from approximately 0.15 to 0.06 fm
Externí odkaz:
http://arxiv.org/abs/1503.02769
Autor:
Bailey, J. A., Bazavov, A., Bernard, C., Bouchard, C., DeTar, C., Du, D., El-Khadra, A. X., Foley, J., Freeland, E. D., Gamiz, E., Gottlieb, Steven, Heller, U. M., Kronfeld, A. S., Laiho, J., Levkova, L., Liu, Yuzhi, Mackenzie, P. B., Meurice, Y., Neil, E. T., Qiu, S., Simone, J. N., Sugar, R. L., Toussaint, D., Van de Water, R. S., Zhou, R.
Publikováno v:
PoS(LATTICE 2014)385
We compute the $B\to\pi\ell\nu$ semileptonic form factors and update the determination of the CKM matrix element $|V_{ub}|$. We use the MILC asqtad ensembles with $N_f=2+1$ sea quarks at four different lattice spacings in the range $a \approx 0.045$~
Externí odkaz:
http://arxiv.org/abs/1411.6038
Autor:
Bazavov, A., Bernard, C., Bouchard, C., DeTar, C., Du, D., El-Khadra, A. X., Foley, J., Freeland, E. D., Gámiz, E., Gottlieb, Steven, Heller, U. M., Kim, J., Komijani, J., Kronfeld, A. S., Laiho, J., Levkova, L., Mackenzie, P. B., Neil, E. T., Simone, J. N., Sugar, R. L., Toussaint, D., Van de Water, R. S., Zhou, R.
We compute the leptonic decay constants $f_{D^+}$, $f_{D_s}$, and $f_{K^+}$, and the quark-mass ratios $m_c/m_s$ and $m_s/m_l$ in unquenched lattice QCD. We use the MILC highly improved staggered quark (HISQ) ensembles with four dynamical quark flavo
Externí odkaz:
http://arxiv.org/abs/1411.2667
Autor:
Bazavov, A., Bernard, C., Brown, N., DeTar, C., Foley, J., Gottlieb, Steven, Heller, U. M., Hetrick, J. E., Komijani, J., Laiho, J., Levkova, L., Oktay, M., Sugar, R. L., Toussaint, D., Van de Water, R. S., Zhou, R.
We report on a preliminary scale determination with gradient-flow techniques on the $N_f = 2 + 1 + 1$ HISQ ensembles generated by the MILC collaboration. The ensembles include four lattice spacings, ranging from 0.15 to 0.06 fm, and both physical and
Externí odkaz:
http://arxiv.org/abs/1411.0068
Autor:
Basak, S., Bazavov, A., Bernard, C., DeTar, C., Freeland, E., Foley, J., Gottlieb, Steven, Heller, U. M., Komijani, J., Laiho, J., Levkova, L., Osborn, J., Sugar, R. L., Torok, A., Toussaint, D., Van de Water, R. S., Zhou, R.
We report on the MILC Collaboration calculation of electromagnetic effects on light pseudoscalar mesons. The simulations employ asqtad staggered dynamical quarks in QCD plus quenched photons, with lattice spacings varying from 0.12 to 0.06 fm. Finite
Externí odkaz:
http://arxiv.org/abs/1409.7139