Publications (54)
The topological susceptibility and f_pi from lattice QCD
UKQCD Collaboration, A. Hart, M. Teper
We study the topological susceptibility, chi, in QCD with two quark flavours using lattice field configurations that have been produced with an O(a) improved quark action. We find…
Interferometric Studies of the extreme binary, Aurigae: Pre-eclipse Observations
R. Stencel, M. Creech-Eakman, A. Hart +3
We report new and archival K-band interferometric uniform disk diameters obtained with the Palomar Testbed Interferometer for the eclipsing binary star Aurigae, in advance of…
First results from 2+1-Flavor Domain Wall QCD: Mass Spectrum, Topology Change and Chiral Symmetry with
D. J. Antonio, T. Blum, K. C. Bowler +23
We present results for the static interquark potential, light meson and baryon masses, and light pseudoscalar meson decay constants obtained from simulations of domain wall QCD wit…
On the glueball spectrum in O(a)-improved lattice QCD
UKQCD Collaboration, A. Hart, M. Teper
We calculate the light `glueball' mass spectrum in N_f=2 lattice QCD using a fermion action that is non-perturbatively O(a) improved. We work at lattice spacings a ~0.1 fm and with…
The monopole mass in the three-dimensional Georgi-Glashow model
A. C. Davis, A. Hart, T. W. B. Kibble +1
We study the three-dimensional Georgi-Glashow model to demonstrate how magnetic monopoles can be studied fully non-perturbatively in lattice Monte Carlo simulations, without any as…
Identification of three new proto-Planetary Nebulae exhibiting the unidentified feature at 21 um
L. Cerrigone, J. L. Hora, G. Umana +3
Among its great findings, the IRAS mission showed the existence of an unidentified mid-IR feature around 21 um. Since its discovery, this feature has been detected in all C-rich pr…