University of Alberta

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2014 · hep-phShow all

11 papers · 2 filters

hep-ph2014★ 31 cited

High-Energy Limit of Quantum Electrodynamics beyond Sudakov Approximation

Alexander A. Penin

We study the high-energy behavior of the scattering amplitudes in quantum electrodynamics beyond the leading order of the small electron mass expansion in the leading logarithmic a…

hep-ph2014★ 6 cited

Non-collider searches for stable massive particles

Sergey Burdin, Malcolm Fairbairn, Philippe Mermod +4

The theoretical motivation for exotic stable massive particles (SMPs) and the results of SMP searches at non-collider facilities are reviewed. SMPs are defined such that they would…

hep-ph2014★ 13 cited

O(α_s^2) corrections to the running top-Yukawa coupling and the mass of the lightest Higgs boson in the MSSM

D. Kunz, L. Mihaila, N. Zerf

In this paper we propose a method to compute the running top-Yukawa coupling in supersymmetric models with heavy mass spectrum based on the "running" and "decoupling" procedure. In…

hep-ph2014★ 1 cited

Production of black holes and string balls in a two-dimensional split-fermion model

Shohreh Abdolrahimi, Christos Tzounis

We present cross-sections for the black hole and string ball production in proton-proton collisions in a TeV-scale gravity model with split fermions in two dimensions. The cross-se…

hep-ph2014★ 27 cited

Michel decay spectrum for a muon bound to a nucleus

Andrzej Czarnecki, Matthew Dowling, Xavier Garcia i Tormo +2

The spectrum of electrons from muons decaying in an atomic bound state is significantly modified by their interaction with the nucleus. Somewhat unexpectedly, its first measurement…

hep-ph2014★ 129 cited

The Physics Programme Of The MoEDAL Experiment At The LHC

B. Acharya, J. Alexandre, J. Bernabéu +59

The MoEDAL experiment at Point 8 of the LHC ring is the seventh and newest LHC experiment. It is dedicated to the search for highly ionizing particle avatars of physics beyond the…

hep-ph2014★ 3 cited

Anomalous magnetic moment of the positronium ion

Yi Liang, Paul L. McGrath, Andrzej Czarnecki

We determine the gyromagnetic factor of the positronium ion, a three-body system consisting of two electrons and a positron, including first relativistic corrections. We find that…

hep-ph2014★ 11 cited

Muon decay spin asymmetry

Fabrizio Caola, Andrzej Czarnecki, Yi Liang +2

We compute the spin asymmetry of the muon decay through O(alpha^2) in perturbative QED. These two-loop corrections are about a factor five (twenty) smaller than the current statist…

hep-ph2014★ 36 cited

Hyperfine splitting in positronium to $O (α^{7} m_{e})$ : one-photon annihilation contribution

Marc Baker, Peter Marquard, Alexander Penin +2

We present the complete result for the $O (α^{7} m_{e})$ one-photon annihilation contribution to the hyperfine splitting of the ground state energy levels in positronium. Numerica…

hep-ph2014★ 54 cited

Leptonic decay of the Upsilon(1S) meson at third order in QCD

Martin Beneke, Yuichiro Kiyo, Peter Marquard +4

We present the complete next-to-next-to-next-to-leading order short-distance and bound-state QCD correction to the leptonic decay rate Gamma(Upsilon(1S)->l+l-) of the lowest-lying…