Results 41 to 50 of about 35,501 (212)

Two-loop effective potential for a general renormalizable theory and softly broken supersymmetry [PDF]

, 2001
I compute the two-loop effective potential in the Landau gauge for a general renormalizable field theory in four dimensions. Results are presented for the \bar{MS} renormalization scheme based on dimensional regularization, and for the \bar{DR} and \bar ...
A. Brignole, A. I. Davydychev, A. I. Davydychev, A. J. Parkes, A. Parkes, A. V. Kotikov, A. V. Kotikov, B. Kastening, C. Ford, C. Ford, C. Ford, C. Ford, C. Ford, C. Ford, C. Ford, D. J. Castaño, D. M. Capper, D. R. T. Jones, D. R. T. Jones, D. R. T. Jones, F. A. Berends, G. Degrassi, G. L. Kane, H. E. Haber, H. Nakano, H. Yamagishi, H. Yamagishi, I. Jack, I. Jack, I. Jack, I. Jack, J. A. Casas, J. A. Casas, J. A. Casas, J. Kodaira, J. R. Ellis, J. R. Ellis, J. R. Espinosa, J. R. Espinosa, J. R. Espinosa, J. Wess, M. B. Einhorn, M. B. Einhorn, M. Bando, M. Bando, M. Caffo, M. Carena, M. Carena, M. E. Machacek, M. K. Nielsen, M. Sher, P. West, R. Arnowitt, R. Barbieri, R. Fukuda, R. Hempfling, R. Jackiw, R. Zhang, S. P. Li, S. P. Martin, S. P. Martin, S. R. Coleman, Stephen P. Martin, W. Siegel, Y. Okada, Y. Yamada   +65 more
core   +2 more sources

The NSVZ scheme for N=1 SQED with Nf flavors, regularized by the dimensional reduction, in the three-loop approximation

Physics Letters B, 2017
At the three-loop level we analyze, how the NSVZ relation appears for N=1 SQED regularized by the dimensional reduction. This is done by the method analogous to the one which was earlier used for the theories regularized by higher derivatives. Within the
S.S. Aleshin, I.O. Goriachuk, A.L. Kataev, K.V. Stepanyantz   +3 more
doaj   +1 more source

Relation between the pole and the minimally subtracted mass in dimensional regularization and dimensional reduction to three-loop order

, 2007
We compute the relation between the pole quark mass and the minimally subtracted quark mass in the framework of QCD applying dimensional reduction as a regularization scheme.
Avdeev, Avdeev, Bardeen, Bauer, Bethke, Binosi, Broadhurst, Capper, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Czakon, Gray, Harlander, Harlander, Harlander, J.H. Piclum, Jack, Jack, Kühn, L. Mihaila, Laporta, Laporta, Lewis, M. Steinhauser, Marquard, Martin, Martinez, Melnikov, Melnikov, Nogueira, P. Marquard, Seidensticker, Siegel, Smirnov, Smirnov, Stöckinger, Tarrach, Tausk, Tentyukov   +41 more
core   +1 more source

Manifestly N=2 supersymmetric regularization for N=2 supersymmetric field theories

Physics Letters B, 2015
We formulate the higher covariant derivative regularization for N=2 supersymmetric gauge theories in N=2 harmonic superspace. This regularization is constructed by adding the N=2 supersymmetric higher derivative term to the classical action and inserting
I.L. Buchbinder, N.G. Pletnev, K.V. Stepanyantz   +2 more
doaj   +1 more source

Reduction with degenerate Gram matrix for one-loop integrals

Journal of High Energy Physics, 2022
An improved PV-reduction (Passarino-Veltman) method for one-loop integrals with auxiliary vector R has been proposed in [1, 2]. It has also been shown that the new method is a self-completed method in [3].
Bo Feng, Chang Hu, Tingfei Li, Yuekai Song   +3 more
doaj   +1 more source

Nontrivial one-loop recursive reduction relation

Journal of High Energy Physics, 2023
In [1], we proposed a universal method to reduce one-loop integrals with both tensor structure and higher-power propagators. But the method is quite redundant as it does not utilize the results of lower rank cases when addressing certain tensor integrals.
Tingfei Li
doaj   +1 more source

New Regularization in Extra Dimensional Model and Renormalization Group Flow of the Cosmological Constant

, 2010
Casimir energy is calculated for 5D scalar theory in the {\it warped} geometry. A new regularization, called {\it sphere lattice regularization}, is taken. The regularized configuration is {\it closed-string like}.
Ichinose, Shoichi
core   +1 more source

Exact Schwinger Proper Time Renormalisation

Journal of High Energy Physics
We derive an exact version of the Schwinger Proper Time Renormalisation Group flow equation from first principles from the complete path integral, without using any perturbative expansion.
Steven Abel, Lucien Heurtier
doaj   +1 more source

Exact result in N $$ \mathcal{N} $$ = 4 SYM theory: generalised double-logarithmic equation

Journal of High Energy Physics, 2022
We present the new results for the generalised double-logarithmic equation, obtained from the analytical continuation of the seven-loop anomalous dimension of twist-2 operators in the planar N $$ \mathcal{N} $$ = 4 SYM theory.
V. N. Velizhanin
doaj   +1 more source

Artificial Intelligence for Multiscale Modeling in Solid‐State Physics and Chemistry: A Comprehensive Review

Advanced Intelligent Systems, EarlyView.
This review explores the transformative impact of artificial intelligence on multiscale modeling in materials research. It highlights advancements such as machine learning force fields and graph neural networks, which enhance predictive capabilities while reducing computational costs in various applications.
Artem Maevskiy, Vitalii Kapitan, Andrey Ustyuzhanin   +2 more
wiley   +1 more source