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Improved B -> pi l nu_l form factors from the lattice
UKQCD Collaboration, K. C. Bowler, L. Del Debbio +6
We present the results of a lattice computation of the form factors for B^0 ->pi^- l^+nu_l decays near zero-recoil. These results will allow a determination of the CKM matrix eleme…
An Investigation of the Soft Pion Relation in Quenched Lattice QCD
UKQCD Collaboration, K. C. Bowler, C. M. Maynard +6
A lattice determination of the form factor and decay constants for the semileptonic decay of heavy pseudoscalar (PS) mesons at zero recoil is presented from which the soft pion rel…
The second moment of the pion's distribution amplitude
L. Del Debbio, M. Di Pierro, A. Dougall +1
We present preliminary results for the second moment of the pion's distribution amplitude. The lattice formulation and the phenomenological implications are briefly reviewed, with…
Gribov copies and gauge variant correlators in U(1) lattice gauge theory
I. L. Bogolubsky, L. Del Debbio, V. K. Mitrjushkin
We discuss the influence of Dirac sheets and zero-momentum modes on the gauge variant photon correlators $Γ(τ;\vp)$ with $\vp\ne 0$ and $\vp =0$ in the pure gauge U(1) theory. A sp…
The Three Dimensional Thirring Model for N_f=4 and N_f=6
L. Del Debbio, S. J. Hands
We present Monte Carlo simulation results for the three dimensional Thirring model for numbers of fermion flavors N_f=4 and 6. For N_f=4 we find a second order chiral symmetry brea…