Matches in SemOpenAlex for { <https://semopenalex.org/work/W2895628082> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2895628082 abstract "The papers in this thesis all concern the treatment of colors in perturbative QCD, both in the context of hard scattering cross sections and for parton showers. The complexity of the color structure of QCD increases quickly with the number of external partons. One way of tackling this issue is by using an orthogonal, group theory based, type of bases, called multiplet bases. This is the topic of papers I, II and IV. In paper III the inclusion of full color treatment in parton showers is addressed. Paper I concerns the decomposition of QCD color structures into multiplet bases, using Wigner 3j and 6j coefficients. A strong constraint is put on the required Wigner coefficients for leading order and next-to-leading order QCD amplitudes. The required Wigner coefficients for up to six external gluons were calculated by the method described in the paper. In paper II the results of paper I is applied to maximally helicity violating amplitude recursion relations, to investigate the viability of multiplet bases in this context. The result is a shift in the computational bottleneck of recursion, from the squaring of amplitudes to the recursion step, but yielding an overall better scaling for the total number of terms encountered. In paper IV a more general method of constructing multiplet bases is presented, which improves the decomposition of paper I for amplitudes with quarks. New basis vectors are constructed by the presented method and from them Wigner 6j cofficients are calculated. Paper III concerns the implementation of an Nc=3 parton shower in the event generator Herwig. In the implementation, the trace basis has been used, but it could, in a straight-forward way, be extended to other color space bases. The implementation has been used to study the effects of subleading color corrections, for both LEP and LHC events. The effects on observables are comparable to earlier findings for LEP, up to ~10% differences, compared to a leading color shower. For LHC the differences are often of the order of a few percent, but in some cases differences of up to 20% were found." @default.
- W2895628082 created "2018-10-12" @default.
- W2895628082 creator A5040449410 @default.
- W2895628082 date "2018-09-01" @default.
- W2895628082 modified "2023-10-16" @default.
- W2895628082 title "Multiplet bases, recursion relations and full color parton showers" @default.
- W2895628082 hasPublicationYear "2018" @default.
- W2895628082 type Work @default.
- W2895628082 sameAs 2895628082 @default.
- W2895628082 citedByCount "0" @default.
- W2895628082 crossrefType "dissertation" @default.
- W2895628082 hasAuthorship W2895628082A5040449410 @default.
- W2895628082 hasConcept C109214941 @default.
- W2895628082 hasConcept C11413529 @default.
- W2895628082 hasConcept C117137515 @default.
- W2895628082 hasConcept C121332964 @default.
- W2895628082 hasConcept C123579102 @default.
- W2895628082 hasConcept C133871045 @default.
- W2895628082 hasConcept C151730666 @default.
- W2895628082 hasConcept C168773036 @default.
- W2895628082 hasConcept C180566339 @default.
- W2895628082 hasConcept C2775859700 @default.
- W2895628082 hasConcept C2776230626 @default.
- W2895628082 hasConcept C2777609287 @default.
- W2895628082 hasConcept C2779343474 @default.
- W2895628082 hasConcept C33923547 @default.
- W2895628082 hasConcept C4839761 @default.
- W2895628082 hasConcept C62520636 @default.
- W2895628082 hasConcept C7602139 @default.
- W2895628082 hasConcept C86803240 @default.
- W2895628082 hasConceptScore W2895628082C109214941 @default.
- W2895628082 hasConceptScore W2895628082C11413529 @default.
- W2895628082 hasConceptScore W2895628082C117137515 @default.
- W2895628082 hasConceptScore W2895628082C121332964 @default.
- W2895628082 hasConceptScore W2895628082C123579102 @default.
- W2895628082 hasConceptScore W2895628082C133871045 @default.
- W2895628082 hasConceptScore W2895628082C151730666 @default.
- W2895628082 hasConceptScore W2895628082C168773036 @default.
- W2895628082 hasConceptScore W2895628082C180566339 @default.
- W2895628082 hasConceptScore W2895628082C2775859700 @default.
- W2895628082 hasConceptScore W2895628082C2776230626 @default.
- W2895628082 hasConceptScore W2895628082C2777609287 @default.
- W2895628082 hasConceptScore W2895628082C2779343474 @default.
- W2895628082 hasConceptScore W2895628082C33923547 @default.
- W2895628082 hasConceptScore W2895628082C4839761 @default.
- W2895628082 hasConceptScore W2895628082C62520636 @default.
- W2895628082 hasConceptScore W2895628082C7602139 @default.
- W2895628082 hasConceptScore W2895628082C86803240 @default.
- W2895628082 hasLocation W28956280821 @default.
- W2895628082 hasOpenAccess W2895628082 @default.
- W2895628082 hasPrimaryLocation W28956280821 @default.
- W2895628082 hasRelatedWork W1621177443 @default.
- W2895628082 hasRelatedWork W19951641 @default.
- W2895628082 hasRelatedWork W2026085931 @default.
- W2895628082 hasRelatedWork W2161964928 @default.
- W2895628082 hasRelatedWork W2222782726 @default.
- W2895628082 hasRelatedWork W2270916216 @default.
- W2895628082 hasRelatedWork W2617882054 @default.
- W2895628082 hasRelatedWork W2793549957 @default.
- W2895628082 hasRelatedWork W2942861869 @default.
- W2895628082 hasRelatedWork W2963012733 @default.
- W2895628082 hasRelatedWork W3098036983 @default.
- W2895628082 hasRelatedWork W3099371693 @default.
- W2895628082 hasRelatedWork W3099810929 @default.
- W2895628082 hasRelatedWork W3101641944 @default.
- W2895628082 hasRelatedWork W3103189378 @default.
- W2895628082 hasRelatedWork W3103650557 @default.
- W2895628082 hasRelatedWork W3104645923 @default.
- W2895628082 hasRelatedWork W3105720990 @default.
- W2895628082 hasRelatedWork W3106328851 @default.
- W2895628082 hasRelatedWork W2341603323 @default.
- W2895628082 isParatext "false" @default.
- W2895628082 isRetracted "false" @default.
- W2895628082 magId "2895628082" @default.
- W2895628082 workType "dissertation" @default.