Exploratory spectrum calculations using overlap valence quarks on a staggered sea

We present exploratory results for the hadron mass spectrum and pseudoscalar meson decay constants using mixed actions. We use improved staggered sea quarks and HYP-smeared overlap valence quarks. We obtain good signals on 10 configurations at one lattice spacing and two different sets of sea quark masses.Comment: Lattice2004(spectrum), 3pages, 4 figure

Conception, design and development of the Impulse Response Impedance Spectroscopy instrument

SIGLEAvailable from British Library Document Supply Centre-DSC:DX199851 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

K(l3) form factor with N(f) = 2+1 dynamical domain wall fermions

We present the latest results from the UKQCD/RBC collaborations for the Kl3 form factor fromsimulations with 2+1 avours of dynamical domain wall quarks. Simulations are performedon lattices with two different volumes and four values of the light quark mass, allowing for anextrapolation to the chiral limit. The analysis includes a thorough investigation into the sourcesof systematic error in our ts. After interpolating to zero momentum transfer, we obtain f+(0) =0:964(5) (or Df

The first moment of the Kaon distribution amplitude from Nf = 2+1 Domain Wall Fermions

We present a lattice computation of the first moment of the kaon’s leading-twist distribution amplitude. We use ensembles with 2+1 dynamical flavours of domain wall fermions and the Iwasaki gauge action from the RBC and UKQCD joint dataset. We observe the expected chiral behaviour and obtain hx i(2GeV) ? 3/5a1 K (2GeV) = 0.032(3), which agrees very well with other results obtained using QCD sum-rules and the recent lattice result from the UKQCD/QCDSF collaboration

Kl3 form factor with Nf = 2+1 dynamical domain wall fermions

We present the latest results from the UKQCD/RBC collaborations for the Kl3 form factor fromsimulations with 2+1 flavours of dynamical domain wall quarks. Simulations are performedon lattices with two different volumes and four values of the light quark mass, allowing for anextrapolation to the chiral limit. The analysis includes a thorough investigation into the sourcesof systematic error in our fits. After interpolating to zero momentum transfer, we obtain f+(0) =0:964(5) (or ?f = -0:013(5)) which, when combined with the latest experimental results for Kl3decays, leads to jVusj = 0:2249(14)

K ?? form factor with Nf = 2+1 dynamical domain wall fermions

We present the latest results from the UKQCD/RBC collaborations for the Kl3 form factor with2+1 avours of dynamical domain wall quarks. Simulations are performed on 1633216 and243 6416 lattices with three values of the light quark mass, allowing for an extrapolation tothe chiral limit. After interpolating to zero momentum transfer, we obtain the preliminary resultf Kp+ (0) = 0:9680(16), which is in excellent agreement with an earlier Nf = 2 resul

K to π semileptonic form factor with 2+1 flavor domain wall fermions on the lattice

We present preliminary results from the RBC and UKQCD collaborations for the Kl3 form factor f0Kπ (0) = f+Kπ (0) with 2+1 flavours of dynamical domain wall quarks. Simulations are performed on 163×32×16 and 243×64×16 lattices with three values of the light quark mass, allowing for an extrapolation to the chiral limit

K(l3) form factor with N(f) = 2+1 dynamical domain wall fermions: A progress report

We present the latest results from the UKQCD/RBC collaborations for the Kl3 form factor from simulations with 2 + 1 flavours of dynamical domain wall quarks. Simulations are performed on lattices with two different volumes and four values of the light quark mass, allowing for an extrapolation to the chiral limit. The analysis includes a thorough investigation into the sources of systematic error in our fits. After interpolating to zero momentum transfer, we obtain f+(0) = 0.964(5) (or ?f = -0.013(5)) which, when combined with the latest experimental results for Kl3 decays, leads to |Vus| = 0.2249(14)