Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Sauter, Werner Krambeck"'
Publikováno v:
International Journal of Modern Physics A (2024) 2450048
In this work, we present the studies carried out for the production of the monopolium at the LHC in ultraperipheral collisions for the processes $pp$ and $PbPb$. The monopolium is described by the bound state of a monopole-antimonopole pair, and we a
Externí odkaz:
http://arxiv.org/abs/2308.15587
Autor:
Sauter, Werner Krambeck
Publikováno v:
Biblioteca Digital de Teses e Dissertações da UFRGSUniversidade Federal do Rio Grande do SulUFRGS.
A aplicabilidade e usos de propagadores de glúon modificados na Cromodinâmica Quântica (QCD) em diferentes espécies de processos é analisada. Os propagadores modificados de glúon são obtidos por diversos métodos, em especial, as equações de
Externí odkaz:
http://hdl.handle.net/10183/3721
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
We provide a universal expression of cross sections for the exclusive vector meson production and deeply virtual Compton scattering (DVCS) in photon-proton and photon-nucleus interactions based on the geometric scaling phenomenon. The theoretical par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::cc1de92045d9a3f4f4017771383ed5e6
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
We perform phenomenological applications of modified gluon propagators and running coupling constants in scattering processes in Quantum Chromodynamics (QCD). The modified forms of propagators and running coupling constant are obtained by non-perturb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::e11b0caac3185a1e01d3156fcd075af0
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
In this paper we study the double diffractive vector meson production in e+ e- collisions assuming the dominance of the BFKL pomeron exchange. We consider the nonforward solution of the BFKL equation at high energy and large momentum transfer and est
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::97bd77ff9a76521cb5e0cf111098c39a
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
The double vector meson production in two-photon collisions is addressed assuming that the color singlet t-channel exchange carries large momentum transfer. We consider the non-forward solution of the BFKL equation at high energy and large momentum t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::4410fcbf37abd73e86a83754851236c6
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
The meson (pion and kaon) form factor is calculated in the perturbative framework with alternative forms for the running coupling constant and the gluon propagator in the infrared kinematic region. These modified forms are employed to test the sensib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::fb77e77528ade09558572bf7896e4de2
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
The modifications induced in the calculation of the cross section of the diffractive process γγ →J/ [psi] J/ [psi], when the gluon propagator is changed are analyzed. Instead of the usual perturbative gluon propagator, alternative forms obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::7b81d889adcb1bbb62783abc2fa7b985