857 citations · 18.3k across the 391 of their papers we have counts for
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The first exploration of the physical Riemann surfaces of the ratio
Alessio Mangoni, Simone Pacetti, Egle Tomasi-Gustafsson
Recently, the BESIII experiment renewed the interest on baryon form factors by measuring the modulus and phase of the ratio between the electric and the magnetic …
New fit of time-like proton electromagnetic form factors from colliders
Egle Tomasi-Gustafsson, Andrea Bianconi, Simone Pacetti
The data on the proton form factors in the time-like region from the BaBar, BESIII and CMD-3 Collaborations are examined to have coherent pieces of information on the proton struct…
The cross section of as a litmus test of isospin violation in the decays of vector charmonia into
Rinaldo Baldini Ferroli, Alessio Mangoni, Simone Pacetti
Under the aegis of isospin conservation, the amplitudes in Born approximation, i.e., considering the only one-photon-exchange mechanism, of the decay $ψ\to Λ\overline Σ^0+{\rm c.c.…
Amplitudes separation and strong-electromagnetic relative phase in the decays into baryons
Rinaldo Baldini Ferroli, Alessio Mangoni, Simone Pacetti +1
The strong, electromagnetic and mixed strong-electromagnetic amplitudes of the decays into baryon-anti-baryon pairs have been obtained by exploiting all available data sets…
A possible simultaneous fit to the available cross section data nearby by means of a strong correction to the Coulomb enhancement factor
Antonio Amoroso, Stefano Bagnasco, Rinaldo Baldini Ferroli +30
There are two available set of data on the cross section above threshold. The BELLE measurement, with ISR return, is compatible with the presen…
Modeling Double Parton Scattering at LHC
Giulia Pancheri, Agnes Grau, Simone Pacetti +1
We examine present data for double parton scattering at LHC and discuss their energy dependence from its earliest measurements at the ISR. Different models for the effective cross-…
Strong and electromagnetic amplitudes of the decays into baryons and their relative phase
Rinaldo Baldini Ferroli, Alessio Mangoni, Simone Pacetti +1
The Feynman amplitude for the decay of the meson into baryon-antibaryon can be written as a sum of three sub-amplitudes: a purely strong, a purely electromagnetic and a mixed…
Analysis and implications of precision near-forward TOTEM data
Giulia Pancheri, Simone Pacetti, Yogendra Srivastava
Very precise data on elastic proton-proton scattering at , and TeV have been obtained by the TOTEM group at LHC in the near-forward region (momentum transfers…
A model to explain angular distributions of and decays into and
M. Alekseev, A. Amoroso, R. Baldini Ferroli +28
BESIII data show a particular angular distribution for the decay of the and mesons into the hyperons and . More in details the angular…
Two-photon exchange: myth and history
Egle Tomasi-Gustafsson, Simone Pacetti
After recalling the arguments for possible excess of two-photon contribution over -counting, model independent statements about the consequences on the observables will be given…
-parity violating amplitudes in the decay
Rinaldo Baldini Ferroli, Alessio Mangoni, Simone Pacetti
The decays of the negative -parity meson into even numbers of pions violate -parity. Such decays, as well as other -parity decays into hadrons, can be parametrized i…
A new -parity violating amplitude in the decay?
R. Baldini Ferroli, F. De Mori, M. Destefanis +25
The meson has negative -parity so that, in the limit of isospin conservation, its decay into should be purely electromagnetic. However, the measured branching fra…
Analytic pion form factor
Earle L. Lomon, Simone Pacetti
The pion electromagnetic form factor and two-pion production in electron-positron collisions are simultaneously fitted by a vector dominance model evolving to perturbative QCD at l…
Analytic continuation of nucleon electromagnetic form factors in the time-like region
Pedro Alberto, Alessandro Drago, Alessio Mangoni +2
The possibility to compute nucleon electromagnetic form factors in the time-like region by analytic continuation of their space-like expressions has been explored in the framework…
Modeling the elastic differential cross-section at LHC
D. A. Fagundes, A. Grau, S. Pacetti +2
An empirical model for the elastic differential cross section is proposed. Inspired by early work by Barger and Phillips, we parametrize the scattering amplitude in building b…
Elastic pp scattering from the optical point to past the dip: an empirical parametrization from ISR to LHC
Daniel A. Fagundes, Agnes Grau, Simone Pacetti +2
We describe the main features of recent LHC data on elastic pp scattering through a simple parametrization to the amplitude, inspired by a model proposed by Barger and Phillips in…
Hunting for asymptotia at LHC
G. Pancheri, D. A. Fagundes, A. Grau +2
We discuss whether the behaviour of some hadronic quantities, such as the total cross-section, the ratio of the elastic to the total cross-section, are presently exhibiting the asy…
Checks of asymptotia in pp elastic scattering at LHC
Agnes Grau, Simone Pacetti, Giulia Pancheri +1
We parametrize TOTEM data for the elastic differential pp cross section at sqrt(s)=7 TeV in terms of two exponentials with a relative phase. We employ two previously derived sum ru…
Time-like and space-like electromagnetic form factors of nucleons, a unified description
Earle L. Lomon, Simone Pacetti
The extended Lomon-Gari-Krümpelmann model of nucleon electromagnetic form factors, which embodies ρ, ρ', ω, ω' and ϕvector meson contributions and the perturbative QCD high momentu…
Nucleon form factors: the space-time connection
S. Pacetti
Analyticity of nucleon form factors allows to derive sum rules which, using space-like and time-like data as input, can give unique information about behaviors in energy regions no…
No Sommerfeld resummation factor in e+e- -> ppbar ?
Rinaldo Baldini Ferroli, Simone Pacetti, Adriano Zallo
The Sommerfeld rescattering formula is compared to the e+e- -> ppbar BaBar data at threshold and above. While there is the expected Coulomb enhancement at threshold, two unexpected…