0000000000185656
AUTHOR
Gad Eilam
showing 4 related works from this author
Higher-order effects for the coupling constant in asymptotically free theories
1977
It is shown that the two-loop contribution to the Callan-Symanzik $\ensuremath{\beta}$ function leads to an effective coupling constant which may be quite different from the value obtained from the standard one-loop calculation. This correction is larger than that due to finite quark masses. Possible implications for the comparison between asymptotically free theories and experiment are discussed.
Large-photon-number limit and the essential singularity in finite quantum electrodynamics
1976
It is shown that the essential singularity in finite quantum electrodynamics can be located by considering only those diagrams with a large number of photons exchanged in the single-fermion loop, without photons emitted and absorbed on a fermion line. (AIP)
Production ofWbosons in proton-nucleus collisions
1979
It is shown that nuclear effects can cause an enhancement in the cross section for production of $W$ bosons in a proton-nucleus collision. The cross section near threshold is a few orders of magnitude higher than expected from a linear dependence on the atomic number. Encouraging implications for experiments with fixed targets at laboratory energies of ${10}^{3}$ GeV and higher are discussed. We also discuss lepton-pair production off nuclei.
Reconciling high-transverse-momentum dimuon production with quantum chromodynamics
1979
It is shown that by taking into account nuclear effects in a phenomenological model-independent way, the recent Fermilab data for of muon pairs may be reduced to values compatible with quantum-chromodynamics predictions. The sensitivity of this reduction to uncertainties in the assumed nuclear dependence are discussed.