132 citations · 389 across the 11 of their papers we have counts for
7 papers · 1 filter
Grand Unification in the Projective Plane
A. Hebecker
A 6-dimensional grand unified theory with the compact space having the topology of a real projective plane, i.e., a 2-sphere with opposite points identified, is considered. The spa…
Power-Like Threshold Corrections to Gauge Unification in Extra Dimensions
A. Hebecker, A. Westphal
One of the much-debated novel features of theories with extra dimensions is the presence of power-like loop corrections to gauge coupling unification, which have the potential of a…
Gauge Invariance and Factorisation in Exclusive Meson Production
A Hebecker, P V Landshoff
The structure of the nonperturbative vector meson vertex function complicates the proof of the factorisation theorem for the reaction . It leads to additional contribut…
The Drell-Yan Process and Factorization in Impact Parameter Space
S. J. Brodsky, A. Hebecker, E. Quack
The cross section for Drell-Yan pair production in the limit of small -target is derived in the rest frame of the target hadron. Our calculation is based on the fundamental quan…
THERMODYNAMICS OF THE ELECTROWEAK PHASE TRANSITION
W. Buchmuller, Z. Fodor, A. Hebecker
We discuss several general aspects of the free energy of the standard model at high temperatures. In particular the Clausius-Clapeyron equation is shown to yield a relation between…
Gauge Invariant Treatment of the Electroweak Phase Transition
W. Buchmuller, Z. Fodor, A. Hebecker
We evaluate the gauge invariant effective potential for the composite field in the SU(2)-Higgs model at finite temperature. Symmetric and broken phases correspond…