Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Guzmán, Victor Miguel Banda"'
We carry out a detailed study of the three-point fermion-photon interaction vertex at one loop order for massive fermions in reduced quantum electrodynamics. This calculation is carried out in arbitrary covariant gauges and space-time dimensions with
Externí odkaz:
http://arxiv.org/abs/2310.09670
The baryon-meson scattering amplitude is computed within the $1/N_c$ expansion of QCD, where $N_c$ is the number of color charges. The most general expression is obtained by accounting for explicitly the effects of the decuplet-octet baryon mass diff
Externí odkaz:
http://arxiv.org/abs/2305.00879
We compute one-loop electron-photon vertex with fully off-shell external momenta in an arbitrary covariant gauge and space-time dimension. There exist numerous efforts in literature where one-loop off-shell vertex is calculated by employing the stand
Externí odkaz:
http://arxiv.org/abs/2304.03719
Autor:
Ahmadiniaz, Naser, Guzman, Victor Miguel Banda, Schubert, Christian, Bastianelli, Fiorenzo, Corradini, Olindo, Edwards, James P.
We describe progress applying the \textit{Worldline Formalism} of quantum field theory to the fermion propagator dressed by $N$-photons to study multi-linear Compton scattering processes, explaining how this approach -- whose calculational advantages
Externí odkaz:
http://arxiv.org/abs/2201.10852
Autor:
Ahmadiniaz, Naser, Guzman, Victor Miguel Banda, Bastianelli, Fiorenzo, Corradini, Olindo, Edwards, James P., Schubert, Christian
In the first part of this series, we employed the second-order formalism and the ``symbol'' map to construct a particle path-integral representation of the electron propagator in a background electromagnetic field, suitable for open fermion-line calc
Externí odkaz:
http://arxiv.org/abs/2107.00199
Contribution of $SU(3)$ quadratic Casimir squared to rotational bands in the interacting boson model
Rotational bands are commonly used in the analysis of the spectra of atomic nuclei. The early version of the interacting boson model of Arima and Iachello has been foundational to the description of rotations in nuclei. The model is based on a unitar
Externí odkaz:
http://arxiv.org/abs/2103.10822
Autor:
Guzman, Victor Miguel Banda, Flores-Mendieta, Ruben, Hernandez, Johann, Rosales-Aldape, Felipe de Jesus
Publikováno v:
Phys. Rev. D 102, 036010 (2020)
The quadratic Casimir operator of the special unitary $SU(N)$ group is used to construct projection operators, which can decompose any of its reducible finite-dimensional representation spaces contained in the tensor product of two and three adjoint
Externí odkaz:
http://arxiv.org/abs/2006.14169
Autor:
Ahmadiniaz, Naser, Guzman, Victor Miguel Banda, Bastianelli, Fiorenzo, Corradini, Olindo, Edwards, James P., Schubert, Christian
In the first-quantised worldline approach to quantum field theory, a long-standing problem has been to extend this formalism to amplitudes involving open fermion lines while maintaining the efficiency of the well-tested closed-loop case. In the prese
Externí odkaz:
http://arxiv.org/abs/2004.01391
Autor:
Guzman, Victor Miguel Banda, Flores-Mendieta, Ruben, Hernandez, Johann, Rosales-Aldape, Felipe de Jesus
Publikováno v:
Phys. Rev. D 101, 074018 (2020)
The quadrupole moments of ground state baryons are discussed in the framework of the 1/N(c) expansion of QCD, where N(c) is the number of color charges. Theoretical expressions are first provided assuming an exact SU(3) flavor symmetry, and then the
Externí odkaz:
http://arxiv.org/abs/2002.09256
Publikováno v:
J.Phys.Conf.Ser. 761 (2016) 012079
A universal description of particles with spins j greater or equal one , transforming in (j,0)+(0,j), is developed by means of representation specific second order differential wave equations without auxiliary conditions and in covariant bases such a
Externí odkaz:
http://arxiv.org/abs/1610.09219