Results 31 to 40 of about 6,267,160 (290)
European Physical Journal C: Particles and Fields, 2020 We present an improved determination of the strange quark and antiquark parton distribution functions of the proton by means of a global QCD analysis that takes into account a comprehensive set of strangeness-sensitive measurements: charm-tagged cross ...
Ferran Faura +4 more
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Seeking SUSY fixed points in the 4 − ϵ expansion
Journal of High Energy Physics, 2021 We use the 4 − ϵ expansion to search for fixed points corresponding to 2 + 1 dimensional N $$ \mathcal{N} $$ =1 Wess-Zumino models of N Φ scalar superfields interacting through a cubic superpotential. In the N Φ = 3 case we classify all SUSY fixed points
Pedro Liendo, Junchen Rong
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Four-loop QCD propagators and vertices with one vanishing external momentum
Journal of High Energy Physics, 2017 We have computed the self-energies and a set of three-particle vertex functions for massless QCD at the four-loop level in the M S ¯ $$ \overline{\mathrm{MS}} $$ renormalization scheme.
B. Ruijl +3 more
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Group theory factors for Feynman diagrams [PDF]
, 1998 We present algorithms for the group independent reduction of group theory factors of Feynman diagrams. We also give formulas and values for a large number of group invariants in which the group theory factors are expressed.
A. N. SCHELLEKENS +7 more
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K-theory for group C*-algebras
, 2011 These notes are based on a lecture course given by the first author in the Sedano Winter School on K-theory held in Sedano, Spain, on January 22-27th of 2007.
Baum, Paul, Sanchez-Garcia, Ruben
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Five-loop renormalisation of QCD in covariant gauges
Journal of High Energy Physics, 2017 We present the complete set of vertex, wave function and charge renormalisation constants in QCD in a general simple gauge group and with the complete dependence on the covariant gauge parameter ξ in the minimal subtraction scheme of conventional ...
K. G. Chetyrkin +3 more
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Bootstrapping Coulomb and Higgs branch operators
Journal of High Energy Physics, 2021 We apply the numerical conformal bootstrap to correlators of Coulomb and Higgs branch operators in 4d N $$ \mathcal{N} $$ = 2 superconformal theories. We start by revisiting previous results on single correlators of Coulomb branch operators.
Aleix Gimenez-Grau, Pedro Liendo
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, 2011 The ordinary formalism for classical field theory is applied to dynamical group field theories. Focusing first on a local group field theory over one copy of SU(2) and, then, on more involved nonlocal theories (colored and non colored) defined over a ...
Joseph Ben Geloun +2 more
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, 2009 Group field theories are higher dimensional generalizations of matrix models. Their Feynman graphs are fat and in addition to vertices, edges and faces, they also contain higher dimensional cells, called bubbles.
A. Perez +27 more
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Group field theory on 2-groups
Physical Review D, 2023 Group field theories are quantum field theories built on groups. They can be seen as a tool to generate topological state-sums or quantum gravity models. For four dimensional manifolds, different arguments have pointed towards 2-groups (such as crossed modules) as the relevant symmetry structure to probe four dimensional topological features.
Florian Girelli +3 more
openaire +2 more sources