Zobrazeno 1 - 10
of 899
pro vyhledávání: '"Renormalization Regularization and Renormalons"'
Autor:
Emanuele Mereghetti, Christopher J. Monahan, Matthew D. Rizik, Andrea Shindler, Peter Stoffer
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 4, Pp 1-30 (2022)
Abstract The quark chromoelectric dipole (qCEDM) operator is a CP-violating operator describing, at hadronic energies, beyond-the-standard-model contributions to the electric dipole moment of particles with nonzero spin. In this paper we define renor
Externí odkaz:
https://doaj.org/article/0cbe536746bc47c896646ad54b4af319
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 4, Pp 1-36 (2022)
Abstract We study the perturbative expansion of the ground state energy in the presence of an external field coupled to a conserved charge in the integrable two-dimensional O(4) nonlinear sigma model. By solving Volin’s algebraic equations for the
Externí odkaz:
https://doaj.org/article/86f508a113f64c59ac759959cb10e0fd
Autor:
Anshuman Dey, Aryeh Fortinsky
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 12, Pp 1-62 (2021)
Abstract In this paper we explicitly carry out the perturbative renormalization of the T T ¯ $$ T\overline{T} $$ -deformed free massive Dirac fermion in two dimensions up to second order in the coupling constant. This is done by computing the two-to
Externí odkaz:
https://doaj.org/article/ba0f587527d348b3a1970f5ae9294d1f
Autor:
Jarah Evslin, Hengyuan Guo
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-18 (2021)
Abstract It has long been known that perturbative calculations can be performed in a soliton sector of a quantum field theory by using a soliton Hamiltonian, which is constructed from the defining Hamiltonian by shifting the field by the classical so
Externí odkaz:
https://doaj.org/article/5480fe88f31b45e4843d88fff66636fe
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-51 (2021)
Abstract We review and examine in detail recent developments regarding the question of the nucleon mass decomposition. We discuss in particular the virial theorem in quantum field theory and its implications for the nucleon mass decomposition and mec
Externí odkaz:
https://doaj.org/article/ab1d4e2eace246ed96251477810ca00e
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-32 (2021)
Abstract We apply the BMHV scheme for non-anticommuting γ 5 to an abelian chiral gauge theory at the two-loop level. As our main result, we determine the full structure of symmetry-restoring counterterms up to the two-loop level. These counterterms
Externí odkaz:
https://doaj.org/article/1c803ca78aea4d5bbcb21b440c500ce9
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-38 (2021)
Abstract We reconsider the complete set of four-quark operators in the Weak Effective Theory (WET) for non-leptonic ∆F = 1 decays that govern s → d and b → d, s transitions in the Standard Model (SM) and beyond, at the Next-to-Leading Order (NL
Externí odkaz:
https://doaj.org/article/99c629cd841a4fa487ebb4a546f39221
The NSVZ relations for N $$ \mathcal{N} $$ = 1 supersymmetric theories with multiple gauge couplings
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-46 (2021)
Abstract We investigate the NSVZ relations for N $$ \mathcal{N} $$ = 1 supersymmetric gauge theories with multiple gauge couplings. As examples, we consider MSSM and the flipped SU(5) model, for which they easily reproduce the results for the two-loo
Externí odkaz:
https://doaj.org/article/daf4a4e9463445b392e431c34364bf2b
Autor:
S. Katuwal, R. P. Woodard
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-19 (2021)
Abstract We consider quantum gravitational corrections to Maxwell’s equations on flat space background. Although the vacuum polarization is highly gauge dependent, we explicitly show that this gauge dependence is canceled by contributions from the
Externí odkaz:
https://doaj.org/article/6e6272b98d4b46b5a5670b1a63970d5f
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-40 (2021)
Abstract The content of two additional Ward identities exhibited by the U(1) Higgs model is exploited. These novel Ward identities can be derived only when a pair of local composite operators providing a gauge invariant setup for the Higgs particle a
Externí odkaz:
https://doaj.org/article/740cb43129de4bc788d67d274924f53c