Zobrazeno 1 - 10
of 170
pro vyhledávání: '"Peardon, M"'
Autor:
Chakraborty, Bipasha, Davies, C. T. H., Koponen, J., Lepage, G. P., Peardon, M. J., Ryan, S. M.
Publikováno v:
Phys. Rev. D 93, 074509 (2016)
The quark-line disconnected diagram is a potentially important ingredient in lattice QCD calculations of the hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon. It is also a notoriously difficult one to evaluate. H
Externí odkaz:
http://arxiv.org/abs/1512.03270
Autor:
Briceno, R. A., Cohen, T. D., Coito, S., Dudek, J. J., Eichten, E., Fischer, C. S., Fritsch, M., Gradl, W., Jackura, A., Kornicer, M., Krein, G., Lebed, R. F., Machado, F. A., Mitchell, R. E., Morningstar, C. J., Peardon, M., Pennington, M. R., Peters, K., Richard, J. -M., Shen, C. -P., Shepherd, M. R., Skwarnicki, T., Swanson, E. S., Szczepaniak, A. P., Yuan, C. -Z.
The last few years have been witness to a proliferation of new results concerning heavy exotic hadrons. Experimentally, many new signals have been discovered that could be pointing towards the existence of tetraquarks, pentaquarks, and other exotic c
Externí odkaz:
http://arxiv.org/abs/1511.06779
Autor:
Bulava, J., Foley, J., Jhang, Y. C., Juge, K. J., Lenkner, D., Peardon, M. J., Morningstar, C. J., Wong, C. H.
We report on our progress in computing the excitation spectrum in Lattice QCD. We focus on the isospin 0, 1 and 2 channels using the stochastic LapH algorithm for the quark propagators. For the isospin-0 channel, a new glueball operator constructed f
Externí odkaz:
http://arxiv.org/abs/1109.6614
Autor:
Morningstar, Colin, Bell, A., Chen, C. Y., Lenkner, D., Wong, C. H., Bulava, J., Foley, J., Juge, K. J., Peardon, M.
Progress in calculating the spectrum of excited baryons and mesons in lattice QCD is described. Correlation matrices of sets of spatially-extended hadron operators have been studied and their effectiveness in facilitating the extraction of excited-st
Externí odkaz:
http://arxiv.org/abs/1011.6573
The ability to reliably measure the energy of an excited hadron in Lattice QCD simulations hinges on the accurate determination of all lower-lying energies in the same symmetry channel. These include not only single-particle energies, but also the en
Externí odkaz:
http://arxiv.org/abs/1003.2154
Autor:
Morningstar, C., Bell, A., Bulava, J., Engelson, E., Foley, J., Juge, K. J., Lenkner, D., Peardon, M., Wallace, S., Wong, C. H.
Progress in determining the spectrum of excited baryons and mesons in lattice QCD is described. Large sets of carefully-designed hadron operators have been studied and their effectiveness in facilitating the extraction of excited-state energies is de
Externí odkaz:
http://arxiv.org/abs/1002.0818
Publikováno v:
PoS LAT2009:097,2009
Correlation functions of the simplest multi-particle state will be presented using distilled quark propagators. The I=2 pi-pi state can be simulated without computing disconnected diagrams and thus is the simplest two-particle state that can be studi
Externí odkaz:
http://arxiv.org/abs/0911.2044
Publikováno v:
PoS LATTICE2008:100,2008
Hadron spectroscopy on dynamical configurations are faced with the difficulties of dealing with the mixing of single particle states and multi-hadron states (for large spatial volumes and light dynamical quarks masses). It is conceivable that explici
Externí odkaz:
http://arxiv.org/abs/0810.0730
We present our preliminary analysis for the chamonium and D$_s$ spectra obtained from N$_f=2$ dynamical anisotropic lattices. We use 12$^3\times 80$ lattices with lattice spacing $a_t=7.35$ GeV$^{-1}$ and anisotropy of six. Meson correlators are comp
Externí odkaz:
http://arxiv.org/abs/0801.0973
Publikováno v:
PoSLAT2007:227,2007
We present results for charmonium correlators and spectral functions in 2-flavour CD on anisotropic lattices. Our results indicate that the S-waves (J/psi and eta_c) survive up to temperatures close to 2T_c, while the P-waves (chi_c0 and chi_c1) melt
Externí odkaz:
http://arxiv.org/abs/0710.2795