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53 papers · 1 filter
SU(3)-skyrmions
V. B. Kopeliovich, B. E. Stern
The consideration of the bound skyrmions with large strangeness content is continued. The connection between B=2 SO(3)-hedgehog and SU(2)-torus is investigated and the quantization…
Medium effects in the production and decay of - and -resonances in pion-nucleus interactions
W. Cassing, Ye. S. Golubeva, A. S. Iljinov +1
The - and -resonance production and their dileptonic decay in reactions at GSI energies are calculated within the intranuclear cascade (INC) approach. The invariant m…
Euclidean asymptotic expansions of Green functions of quantum fields (II) Combinatorics of the asymptotic operation
G. B. Pivovarov, F. V. Tkachov
The results of part I (hep-ph/9612284) are used to obtain full asymptotic expansions of Feynman diagrams renormalized within the MS-scheme in the regimes when some of the masses an…
Euclidean asymptotic expansions of Green functions of quantum fields (I) Expansions of products of singular functions
Fyodor V. Tkachov
The problem of asymptotic expansions of Green functions in perturbative QFT is studied for the class of Euclidean asymptotic regimes. Phenomenological applications are analyzed to…
Effective Regge QCD
Victor T. Kim, Grigorii B. Pivovarov
A new framework for a high energy limit of quantum gauge field theories is introduced. Its potency is illustrated on a new derivation of the reggeization of the gluon.
Order- determination of the strange quark mass
K. G. Chetyrkin, D. Pirjol, K. Schilcher
We present a QCD sum rule calculation of the strange-quark mass including four-loop QCD corrections to the correlator of scalar currents. We obtain GeV$)=205.5\pm 19.1…