Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Alberto Devoto"'
Autor:
Cristiano Galbiati, Luisa Cifarelli, Alberto Devoto, Maria Chiara Di Guardo, Elona Marku, Walter Bonivento, Francesco Ragusa, Carlo Mapelli, Annamaria Buonomano, Adolfo Palombo, Giuliana Fiorillo, Speranza Falciano, Francesco Lippi, Fabrizio Pisanu, Fabio Cataudella, Silvia Gasperetti, Maria Lucia Brancucci, Guido Giacomo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3730::8cf780141452211996154c934af059ec
http://hdl.handle.net/11588/838350
http://hdl.handle.net/11588/838350
Publikováno v:
Annals of Physics. 232:88-115
A numerical evaluation of the radiative corrections for the energies of the 2s, 2p, and 1s states of the Li isoelectronic sequence has been carried out. The results are based on the ab initio QED calculations made previously by two of the authors. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da517250e7de94ef1448446cdbff44af
https://doi.org/10.1006/aphy.1994.1051
https://doi.org/10.1006/aphy.1994.1051
Autor:
Alberto Devoto, Giovanni Maria Prosperi, Nora Brambilla, Umberto D'Alesio, Sergio Serci, Khin Muang
Publikováno v:
AIP Conference Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8636de9e8b2e334750b426e92add6703
https://doi.org/10.1063/v756.backmatter
https://doi.org/10.1063/v756.backmatter
Autor:
Umberto D'Alesio, Nora Brambilla, Alberto Devoto, Khin Muang, Sergio Serci, Giovanni Maria Prosperi
Publikováno v:
AIP Conference Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e24ea393cebbe89a8de9f4fd276950e
https://doi.org/10.1063/v756.frontmatter
https://doi.org/10.1063/v756.frontmatter
We examine the implications of including corrections associated with the noncommutative extension of quantum electrodynamics - NCQED - to the decays of the ortho and para positronium (\Trip and \Sing) ground states. In NCQED, the well known charge co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::938d81deb4e0fd3a68fd2db9e67630a0
Publikováno v:
Annals of Physics. 98:516-552
Recent work with the Bethe-Salpeter (BS) equation for a spin - 1 2 fermion-antifermion system is developed further and extended in a number of ways. Static kernels are considered, as previously, but in the present case, the structure of the kernels s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4feaa1e02dd8563ae2dcaa5081f4f5d2
https://doi.org/10.1016/0003-4916(76)90164-0
https://doi.org/10.1016/0003-4916(76)90164-0
Publikováno v:
Physical Review D. 30:541-559
We calculate the fourth-order quantum-chromodynamic contribution to the nonsinglet quark longitudinal structure function, obtaining a completely analytic result to this order. We also calculate the fourth-order QCD corrections to the nonsinglet longi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5536e3083963590f43c4928ce7466af9
https://doi.org/10.1103/physrevd.30.541
https://doi.org/10.1103/physrevd.30.541
Publikováno v:
Physical Review D. 27:508-522
We have made an extensive analysis of all large-Q/sup 2/ deep-inelastic neutrino and muon scattering data using evolution equations to fit the scaling violations directly at fixed Bjorken x. We have included all higher-order corrections in both the n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::016725e148fa87954f203541c7f276f7
https://doi.org/10.1103/physrevd.27.508
https://doi.org/10.1103/physrevd.27.508
Publikováno v:
Il Nuovo Cimento A. 43:643-657
We present the details of our calculation of three-photon virtual-annihilation contributions to the ground-state triplet-singlet (hyperfine) splitting in positronium. The result is obtained in an analytic form to ordermα6(α4R∞) and constitutes a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be52da7c45299b3972d9892b0bf87542
https://doi.org/10.1007/bf02730349
https://doi.org/10.1007/bf02730349
Autor:
Wayne W. Repko, Alberto Devoto
Publikováno v:
Physics Letters B. 106:501-504
The width for decays of the type 1−→γ + 0− is evaluated using the two gluon mechanism of QCD. In particular we compute Γ(Ψ → γ + η′), Γ(Ψ → γ + η) and Γ(ϒ → γ + ηc). The first two are found to be in reasonable agreement wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fac5731c018cb5b04b9a6f8dd8b31a0
https://doi.org/10.1016/0370-2693(81)90266-5
https://doi.org/10.1016/0370-2693(81)90266-5