Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Watson, N. J."'
Autor:
Watson, N J, Johal, R K, Reinwald, Y, White, L J, Ghaemmaghami, A M, Morgan, S P, Rose, F R A J, Povey, M J W, Parker, N G
Publikováno v:
Materials Science and Engineering C, Volume 33, Pages 4825-4832 (2013)
We expose thick polymer foam tissue scaffolds to high power ultrasound and study its effect on the openness of the pore architecture and fluid transport through the scaffold. Our analysis is supported by measurements of fluid uptake during insonifica
Externí odkaz:
http://arxiv.org/abs/1302.4313
Autor:
Watson, N. J.
The pinch technique (PT) is an algorithm for the rearrangement of contributions to conventional, gauge-dependent n-point functions in gauge theories to obtain a formulation of one-loop perturbation theory in terms of ``effective'' n-point functions w
Externí odkaz:
http://arxiv.org/abs/hep-ph/9912303
Autor:
Watson, N. J.
Publikováno v:
Nucl.Phys.B552:461-507,1999
It is shown how the pinch technique algorithm may be consistently extended beyond the one-loop level to obtain the gauge-independent two-loop fermion self-energy -i\hat\Sigma^(2)(p) in QCD in the pinch technique approach. The starting point for the c
Externí odkaz:
http://arxiv.org/abs/hep-ph/9812202
Autor:
Watson, N. J.
Publikováno v:
Nucl.Phys.Proc.Suppl. 74 (1999) 341-344
A brief account is given of the problems involved in extended the pinch technique beyond the one-loop level, and of investigations into one possible approach to solving them.
Comment: 4 pages, Latex, talk given at QCD98, Montpellier, France
Comment: 4 pages, Latex, talk given at QCD98, Montpellier, France
Externí odkaz:
http://arxiv.org/abs/hep-ph/9812203
Publikováno v:
Nucl.Phys. B503 (1997) 79-116
In quantum electrodynamics with fermions f = e,\mu..., knowledge of the vacuum polarization spectral function determined from the tree level e^+e^- -> f^+f^- cross sections, together with a single low energy measurement of the fine structure constant
Externí odkaz:
http://arxiv.org/abs/hep-ph/9612237
Autor:
Watson, N. J.
Publikováno v:
Nucl.Phys.B494:388-432,1997
It is shown how the QED concept of a gauge-, scale- and scheme-independent one-loop effective charge can be extended directly at the diagrammatic level to QCD, thus justifying explicitly the ``naive non-abelianization'' prescription used in renormalo
Externí odkaz:
http://arxiv.org/abs/hep-ph/9606381
Autor:
Watson, N. J.
The question of the definition of effective charges for non-abelian gauge theories is discussed, focusing in particular on both the pinch technique and background field method approaches. It is argued that there does exist a unique generalization of
Externí odkaz:
http://arxiv.org/abs/hep-ph/9506276
Autor:
Altes, C. P. Korthals, Watson, N. J.
Publikováno v:
Phys.Rev.Lett.75:2799-2803,1995
We discuss a novel form of CP violation in the standard model. It takes place at temperatures of the order of the electroweak transition, when two regions with different values of the Wilson line are juxtaposed. This CP violation is maximal. A suffic
Externí odkaz:
http://arxiv.org/abs/hep-ph/9411304
Autor:
Watson, N. J.
Publikováno v:
Nucl.Phys.Proc.Suppl. 39BC (1995) 224-227
The recent solution of the Mandelstam constraints for SU(2) is reviewed. This enables the subspace of physical configurations of an SU(2) pure gauge theory on the lattice (introduced solely to regulate the number of fields) with 3N physical degrees o
Externí odkaz:
http://arxiv.org/abs/hep-th/9408174
Autor:
Smith, C. H. Llewellyn, Watson, N. J.
Publikováno v:
Phys.Lett. B302 (1993) 463-471
It is shown how to adapt the non-perturbative coupled cluster method of many-body theory so that it may be successfully applied to Hamiltonian lattice $SU(N)$ gauge theories. The procedure involves first writing the wavefunctions for the vacuum and e
Externí odkaz:
http://arxiv.org/abs/hep-lat/9212025