Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Mangoni Alessio"'
Publikováno v:
EPJ Web of Conferences, Vol 292, p 03003 (2024)
The recent measurement of the modulus and phase of the ratio GΛE/GΛM, between the electric and the magnetic Λ form factors, performed by the BESIII experiment, offers the unique possibility of exploring for the first time ever the complex structur
Externí odkaz:
https://doaj.org/article/f931c118859e4fbe9eb584b84ef8547b
Autor:
Mangoni, Alessio
After investigating the decays of a charmonium $\psi = J/\psi, \psi(2S)$ into a spin-1/2 baryon-antibaryon $B \bar{B}$ pair, with the determination of the only parameter that gives the EM amplitude for neutral final states, in this work we focus our
Externí odkaz:
http://arxiv.org/abs/2202.08542
Autor:
Mangoni, Alessio
The BESIII experiment, based on the BEPCII collider at IHEP in Beijing, China, is capable of measuring nucleon form factors with unprecedented precision. We report recent results achieved by the BESIII collaboration concerning the nucleon time-like f
Externí odkaz:
http://arxiv.org/abs/2110.12475
Recently, the BESIII experiment renewed the interest on baryon form factors by measuring the modulus and phase of the ratio $G_E^\Lambda/G_M^\Lambda$ between the electric and the magnetic $\Lambda$ form factors with unprecedented accuracy. The BESIII
Externí odkaz:
http://arxiv.org/abs/2109.03759
Under the aegis of isospin conservation, the amplitudes in Born approximation, i.e., considering the only one-photon-exchange mechanism, of the decay $\psi\to \Lambda \overline \Sigma{}^0+{\rm c.c.}$, where $\psi$ is a vector charmonium, and of the r
Externí odkaz:
http://arxiv.org/abs/2007.12380
Publikováno v:
Phys. Rev. D 103, 016005 (2021)
The strong, electromagnetic and mixed strong-electromagnetic amplitudes of the $\psi(2S)$ decays into baryon-anti-baryon pairs have been obtained by exploiting all available data sets in the framework of an effective Lagrangian model. We observed tha
Externí odkaz:
http://arxiv.org/abs/2005.11265
Autor:
Amoroso, Antonio, Bagnasco, Stefano, Ferroli, Rinaldo Baldini, Balossino, Ilaria, Bertani, Monica, Bettoni, Diego, Bianchi, Fabrizio, Bortone, Alberto, Calcaterra, Alessandro, Cibinetto, Gianluigi, Cossio, Fabio, De Mori, Francesca, Rolo, Manuel Dioniso Da Rocha, Destefanis, Marco, Farinelli, Riccardo, Fava, Luciano, Felici, Giulietto, Gaido, Luciano, Garzia, Isabella, Greco, Michela, Lavezzi, Lia, Lusso, Stefano, Maggiora, Marco, Mangoni, Alessio, Marcello, Simonetta, Mezzadri, Giulio, Pace, Elisabetta, Pacetti, Simone, Patteri, Piero, Rivetti, Angelo, Scodeggio, Marco, Sosio, Stefano, Spataro, Stefano
There are two available set of data on the $e^+e^- \rightarrow \Lambda^+_c \bar{\Lambda}_c^-$ cross section above threshold. The BELLE measurement, with ISR return, is compatible with the presence of a resonant state, called $\psi(4660)$ (formerly kn
Externí odkaz:
http://arxiv.org/abs/2005.06306
Autor:
Mangoni, Alessio
In this work we propose mainly phenomenological and theoretical models that allow, together with the use of the available experimental data, the calculation of form factors (FFs) and decay amplitudes. We focus our attention firstly on the $J/\psi$ de
Externí odkaz:
http://arxiv.org/abs/2002.09675
The Feynman amplitude for the decay of the $J/\psi$ meson into baryon-antibaryon can be written as a sum of three sub-amplitudes: a purely strong, a purely electromagnetic and a mixed strong-electromagnetic. Assuming that the strong and mixed strong-
Externí odkaz:
http://arxiv.org/abs/1905.01069
Publikováno v:
Phys. Rev. C 98, 045210 (2018)
The decays of the negative $G$-parity meson $G$-parity into even numbers of pions violate $G$-parity. Such decays, as well as other $G$-parity decays into hadrons, can be parametrized in terms of three main intermediate virtual states: one photon, on
Externí odkaz:
http://arxiv.org/abs/1611.04437