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38 papers · 1 filter
Renormalisation of the Fayet-Iliopoulos D-term
I. Jack, D. R. T. Jones
We consider the renormalisation of the Fayet-Iliopoulos D-term in a softly-broken Abelian supersymmetric theory. We show that there exists (at least through three loops) a renormal…
Computation of quark mass anomalous dimension at O(1/N_f^2) in quantum chromodynamics
M. Ciuchini, S. E. Derkachov, J. A. Gracey +1
We present the formalism to calculate d-dimensional critical exponents in QCD in the large N_f expansion where N_f is the number of quark flavours. It relies in part on demonstrati…
Renormalization of the Lattice HQET Isgur-Wise Function
Joseph Christensen, Terrence Draper, Craig McNeile
We compute the perturbative renormalization factors required to match to the continuum Isgur-Wise function, calculated using lattice Heavy Quark Effective Theory. The velocity, mas…
O(d,d) invariance at two and three loops
I. Jack, S. Parsons
We show that in a two-dimensional sigma-model whose fields only depend on one target space co-ordinate, the O(d,d) invariance of the conformal invariance conditions observed at one…
Measurement of Longitudinal Spin Transfer to Lambda Hyperons in Deep-Inelastic Lepton Scattering
HERMES Collaboration, A. Airapetian
Spin transfer in deep-inelastic Lambda electroproduction has been studied with the HERMES detector using the 27.6 GeV polarized positron beam in the HERA storage ring. For an avera…
Nuclear Effects on R = sigma_L / sigma_T in Deep-Inelastic Scattering
K. Ackerstaff
Cross section ratios for deep-inelastic scattering from 14N and 3He with respect to 2H have been measured by the HERMES experiment at DESY using a 27.5 GeV positron beam. The data…