Four-loop QCD propagators and vertices with one vanishing external momentum
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep06(2017)040
Abstract: A bstractWe have computed the self-energies and a set of three-particle vertex functions for massless QCD at the four-loop level in the MS¯$$ \overline{\mathrm{MS}} $$ renormalization scheme. The vertex functions are evaluated at points where… read more here.
Keywords: four loop; loop qcd; propagators vertices; loop ... See more keywords
Two-loop QCD penguin contribution to the width difference in Bs − $$ {\overline{B}}_s $$ mixing
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep07(2021)043
Abstract: Abstract We consider two-loop QCD corrections to the element $$ {\Gamma}_{12}^q $$ Γ 12 q of the decay matrix in Bq−$$ {\overline{B}}_q $$ B ¯ q mixing, q = d, s, in the leading power… read more here.
Keywords: width difference; overline mixing; loop qcd; two loop ... See more keywords
Master integrals for two-loop QCD corrections to quark quasi PDFs
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DOI: 10.1007/jhep10(2020)079
Abstract: We compute the master integrals for the two-loop QCD corrections to quark quasi parton distribution functions (PDFs) in the large momentum effective theory (LaMET). With a proper canonical basis, we derive the analytical results for… read more here.
Keywords: master integrals; two loop; pdfs; integrals two ... See more keywords