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CERN Document Server Encontrados 39 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 1.51 segundos. 
1.
Introduction to the technique of dimensional regularization / Leibbrandt, G
1974. - 102 p.
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2.
From obscurity to two-loop respectability : progress in the light-cone gauge / Leibbrandt, G (CERN)
We evaluate the complete two-loop correction Sigma /sub 2/ to the quark propagator in the light-cone gauge. It is shown that the total divergent contribution to Sigma /sub 2/ is a local function of the external momentum p, even off the mass-shell, since all nonlocal divergent terms cancel exactly. [...]
Geneva : CERN, 2000 - 3 p. - Published in : Nucl. Phys. B, Proc. Suppl. 90 (2000) 19-21
In : 10th International Light-Cone Meeting on Non-Perturbative QCD and Hadron Phenomenology : From Hadrons to Strings, Heidelberg, Germany, 13 - 17 Jun 2000, pp.19-21
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3.
Lessons from the light-cone box / Leibbrandt, G (CERN)
Working in the noncovariant light-cone gauge, we discuss the explicit computation of the 1PI four-point function ("box diagram") in Yang- Mills theory. The complete box diagram which consists of 16 box subdiagrams, 8 lynx subdiagrams and 4 fish subdiagrams, yields both local and nonlocal UV divergent terms. [...]
CERN-TH-99-245.- Geneva : CERN, 2000 - Published in : Nucl. Phys. B, Proc. Suppl. 86 (2000) 408-412
In : International Euroconference in Quantum Chromodynamics, Montpellier, France, 7 - 13 Jul 1999, pp.408-412
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4.
Two-loop quark self-energy in a new formalism; 2, Renormalization of the quark propagator in the light-cone gauge / Leibbrandt, G ; Williams, J
For pt.I see ibid., vol.440, p.537-602, 1995. The complete two-loop correction to the quark propagator, consisting of the spider, rainbow, gluon bubble and quark bubble diagrams, is evaluated in the non-covariant light-cone gauge (LCG), n.A/sup a/(x)=0, n/sup 2/=0. [...]
Geneva : CERN, 2000 - Published in : Nucl. Phys. B 566 (2000) 373-401
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5.
A supersymmetric Lagrangian possessing internal SU(2) symmetry / Capper, D M ; Leibbrandt, G
IC-73-49. - 1974. - 26 p.
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6.
On the degree of divergence of Feynman diagrams in superfield theories / Capper, D M ; Leibbrandt, G
IAEA-ICTP-74-79. - 1974. - 17 p.
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7.
Two-Loop Quark Self-Energy in a New Formalism; 2, Renormalization of the Quark Propagator in the Light-Cone Gauge ; rev. version / Leibbrandt, George (CERN ; Guelph U.) ; Williams, Jimmy D. (Guelph U.)
The complete two-loop correction to the quark propagator, consisting of the spider, rainbow, gluon bubble and quark bubble diagrams, is evaluated in the noncovariant light-cone gauge (lcg). (The overlapping self-energy diagram had already been computed.) The chief technical tools include the powerful matrix integration technique, the n^*-prescription for the spurious poles of 1/qn, and the detailed analysis of the boundary singularities in five- and six-dimensional parameter space. [...]
hep-th/9911207; CERN-TH-99-201; CERN-TH-99-201.- Geneva : CERN, 2000 - 36 p. - Published in : Nucl. Phys. B 566 (2000) 373-401 Access to fulltext document: PDF; Fulltext: PDF; External link: Preprint
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.e-page 69 - Please contact the library if you need to access this document.
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8.
Status quo of the Coulomb gauge : problems and a possible remedy / Leibbrandt, G (U. Cambridge ; CERN)
We motivate the study of ``Minijets'' (that is jets soft with respect to the hard scattering, but hard with respect to \Lambda_QCD) as a means to study the underlying QCD colour flow in events. We discuss, with the aid of a simplistic model, currently available events in which minijets are observed, that is the events have high multiplicity, as a means of understanding the physics of minijets. [...]
hep-ph/9707471; CERN-TH-97-183.- Geneva : CERN, 1998 Access to fulltext document: PDF; External link: hep-ph/9707471 PDF
In : 5th Conference on Quantum Chromodynamics: Festschrift 25th Anniversary of QCD, Montpellier, France, 3 - 9 Jul 1997, pp.101-105 - CERN library copies
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9.
The three-point function in split dimensional regularization in the Coulomb gauge / Leibbrandt, G. (Cambridge U. ; CERN)
We use a gauge-invariant regularization procedure, called ``split dimensional regularization'', to evaluate the quark self-energy $\Sigma (p)$ and quark-quark-gluon vertex function $\Lambda_\mu (p^\prime,p)$ in the Coulomb gauge, $\vec{\bigtriangledown}\cdot\vec{A}^a = 0$. The technique of split dimensional regularization was designed to regulate Coulomb-gauge Feynman integrals in non-Abelian theories. [...]
hep-th/9804109; CERN-TH-97-174; DAMTP-97-46; CERN-TH-97-174; DAMTP-97-46.- Geneva : CERN, 1998 - 13 p. - Published in : Nucl. Phys. B 521 (1998) 383-400 Access to fulltext document: 9804109 - PDF; th-97-174 - TIF; Fulltext: PDF; Source files restricted to CERN users: ZIP; External link: hep-th/9804109 PDF - Please contact the library if you need to access this document.
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10.
A new approach to the Coulomb gauge : split dimensional regularization / Leibbrandt, G (U. Guelph ; CERN)
CERN-TH-96-213. - 1996. - 4 p.
Access to fulltext document - Access to fulltext document - Access to fulltext document - CERN library copies
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CERN Document Server : Encontrados 39 registros   1 - 10siguientefinal  ir al registro:
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1 Leibbrandt, G.
4 Leibbrandt, George
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