Zobrazeno 1 - 10
of 121
pro vyhledávání: '"M.E. Bracco"'
Publikováno v:
Brazilian Journal of Physics. 50:363-371
We use the QCD sum rules for the three-point correlation functions to compute the strong coupling constants of the meson vertices $J/\psi D_{s}^{*} D_{s}^{*}$. Using the QCD sum rules, we obtain the form factor of the vertex, the coupling constant, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::596013917ffabd0945657c0fd8edbcd8
https://doi.org/10.1007/s13538-020-00744-z
https://doi.org/10.1007/s13538-020-00744-z
In this work we study the meson vertex $D_sDK^*$ using the QCD sum rules. We compute the three point correlation functions for the three cases of different off-shell mesons. The form factors for each case are fitted to the numerical calculation of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db55100d3d3c3f6884870a18cbc5628c
Publikováno v:
Nuclear Physics A. 966:208-223
We use the QCD sum rules for the three point correlation functions to compute the strong coupling constants of the meson vertices η c D ⁎ D and η c D s ⁎ D s . We consider perturbative and non-perturbative contributions, working up to dimension
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63378c4ae4a28952314701f36e059f0c
https://doi.org/10.1016/j.nuclphysa.2017.07.002
https://doi.org/10.1016/j.nuclphysa.2017.07.002
Publikováno v:
Nuclear Physics A. 957:109-122
The form factors and coupling constant of the strong meson vertex D s D s ϕ were calculated within the QCD Sum Rules formalism using three point correlation functions. Mesons ϕ and D s were considered alternately off-shell, obtaining two different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ed0d1e1dda51b48f43219c0fb6d3169
https://doi.org/10.1016/j.nuclphysa.2016.08.005
https://doi.org/10.1016/j.nuclphysa.2016.08.005
Publikováno v:
Nuclear Physics A. 936:45-58
The form factors and the coupling constant of the B s B ⁎ K and B s B K ⁎ vertices are calculated using the QCD sum rules method. Three-point correlation functions are computed considering both the heavy and light mesons off-shell in each vertex,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30e4d9f6a8d1db2e6cbd46f846ecf078
https://doi.org/10.1016/j.nuclphysa.2015.01.007
https://doi.org/10.1016/j.nuclphysa.2015.01.007
Publikováno v:
Nuclear Physics A. 929:143-156
The coupling constant of the meson vertex J / ψ D s D s is calculated using the three point correlation function within the QCD sum rules formalism. We have considered alternately mesons J / ψ and D s off-shell together with non-perturbative contri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cb6ee69b4e09880c1a2b8e94e9cc5ef
https://doi.org/10.1016/j.nuclphysa.2014.06.008
https://doi.org/10.1016/j.nuclphysa.2014.06.008
Publikováno v:
Astronomische Nachrichten. 335:630-634
The direct Urca process is an extremely efficient mechanism for cooling a proto neutron star after its formation. It is believed to be the process responsible for the cooling of proto-neutron stars after the first 100 years of life. One of the most i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ab74fd0c186b49c7734244b68bb948d
https://doi.org/10.1002/asna.201412084
https://doi.org/10.1002/asna.201412084
Publikováno v:
Nuclear Physics A. 874:130-142
The form factors and the coupling constant of the B s ⁎ B K vertex are calculated using the QCD sum rules method. Three-point correlation functions are computed considering both K and B mesons off-shell and, after an extrapolation of the QCDSR resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da924c1117cb2cbf88027638b1861fbb
https://doi.org/10.1016/j.nuclphysa.2011.11.004
https://doi.org/10.1016/j.nuclphysa.2011.11.004
Publikováno v:
International Journal of Modern Physics: Conference Series. 18:191-194
The form factor and the coupling constant of the vertex J/ψDs Ds was calculated using the QCD Sum Rules. We have considered the cases where the J/ψ and Ds mesons are off-shell.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abf017d409d7864f08eeec842ae38c6f
https://doi.org/10.1142/s2010194512008434
https://doi.org/10.1142/s2010194512008434
Publikováno v:
Nuclear Physics A. 852:127-140
We calculate the form factors and the coupling constant in the D ⁎ D ρ vertex in the framework of QCD sum rules. We evaluate the three-point correlation functions of the vertex considering D , ρ and D ⁎ mesons off-shell. The form factors obtain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31bda92b602d2b847ed2e9a26f59f4e1
https://doi.org/10.1016/j.nuclphysa.2011.01.001
https://doi.org/10.1016/j.nuclphysa.2011.01.001