Results 41 to 50 of about 122 (77)
Journal of High Energy Physics, 2018 For the general renormalizable N=1 $$ \mathcal{N}=1 $$ supersymmetric gauge theory we investigate renormalization of the Faddeev-Popov ghosts using the higher covariant derivative regularization. First, we find the two-loop anomalous dimension defined in
A. E. Kazantsev +6 more
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Toward massless and massive event shapes in the large-β 0 limit
Journal of High Energy Physics, 2021 We present results for SCET and bHQET matching coefficients and jet functions in the large-β 0 limit. Our computations exactly predict all terms of the form α s n + 1 n f n $$ {\alpha}_s^{n+1}{n}_f^n $$ for any n ≥ 0, and we find full agreement with the ...
N. G. Gracia, V. Mateu
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Resurgence and self-completion in renormalized gauge theories
Under certain assumptions and independent of the instantons, we show that the logarithm expansion of dimensional regularization in quantum field theory needs a nonperturbative completion to have a renormalization-group flow valid at all energies.
Vasquez, Juan Carlos, Maiezza, Alessio
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Journal of High Energy Physics, 2018 The Wilsonian renormalization group (RG) requires Euclidean signature. The conformal factor of the metric then has a wrong-sign kinetic term, which has a profound effect on its RG properties.
Tim R. Morris
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Bion non-perturbative contributions versus infrared renormalons in two-dimensional ℂP N − 1 models
Journal of High Energy Physics, 2019 We derive the semiclassical contributions from the real and complex bions in the two-dimensional ℂP N − 1 sigma model on ℝ×S 1 with a twisted boundary condition. The bion configurations are saddle points of the complexified Euclidean action, which can be
Toshiaki Fujimori +4 more
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Hyperasymptotic approximation to the plaquette and determination of the gluon condensate
Journal of High Energy Physics, 2020 We give the hyperasymptotic expansion of the plaquette with a precision that includes the terminant associated to the leading renormalon. Subleading effects are also considered.
Cesar Ayala +2 more
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Journal of High Energy Physics, 2020 We study the application of the Breitenlohner-Maison-’t Hooft-Veltman (BMHV) scheme of Dimensional Regularization to the renormalization of chiral gauge theories, focusing on the specific counterterm structure required by the non-anticommuting Dirac γ 5 ...
Hermès Bélusca-Maïto +3 more
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Factorization at subleading power and endpoint-divergent convolutions in h → γγ decay
Journal of High Energy Physics, 2020 It is by now well known that, at subleading power in scale ratios, factorization theorems for high-energy cross sections and decay amplitudes contain endpoint-divergent convolution integrals.
Ze Long Liu, Matthias Neubert
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Massless picture, massive picture, and symmetry in the Gaussian renormalization group
, 1998 : We study transformation properties of momentum space renormalization group transformations. The renormalization group transformations are composed of an integral over a high momentum field with a scale transformation of a low momentum field.
Christian Wieczerkowski +2 more
core
Journal of High Energy Physics, 2018 The two-loop interaction correction coefficient to the universal ac conductivity of disorder-free intrinsic graphene is computed with the help of a field theoretic renormalization study using the Bogoliubov-Parasiuk-Hepp-Zimmermann prescription.
S. Teber, A. V. Kotikov
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