M. ANGHINOLFI

The Bloom-Gilman local duality of the inelastic structure function of the proton, the deuteron, and light complex nuclei is investigated using available experimental data in the squared four-momentum transfer range from 0.3 to 5 (GeV/c)2. The results of our analysis suggest that the onset of the Bloom-Gilman local duality is anticipated in...

We describe an event generator that reproduces the photon-nucleon interaction from the pion threshold up to 4 GeV accounting to a large extent for the total photoabsorption cross section. Many reaction channels on the nucleon have been considered: namely single pion production, eta production, multipion production and some hyperon production...

Differential capture View the MathML source and View the MathML source cross sections have been measured at excitation energies between 17 and 41 MeV in 17F and 26 and 39 MeV in 17O at several angles in the 35°–135° interval. The (p, γo) data show, besides a direct capture term, the excitation of giant dipole resonances based on excited states...

Differential capture 12C(p, γ)13N and 11B(d, γ)13C cross sections have been measured in the excitation energy region between 20 and 45 MeV in 13N and 25 and 42 MeV in 13C. Angular distributions are given for the pγ channel at each energy, while the dγ excitation function has been measured at 60°. The pγ0 data show, besides a direct capture...

The2H(d, gamma)4He differential cross section was measured at deuteron laboratory energies of 20, 24, and 28 MeV between thetacm=45° and thetacm=135°. AtE d =28 MeV a complete angular distribution was determined and fitted with Legendre polynomials. The ratioR=dsgr/dOHgr (thetacm=90°)/dsgr/dOHgr (thetacm=135°) was measured for each deuteron energy.

An anticoincidence, high-efficiency, BGO gamma spectrometer, designed for energies in the range 10–100 MeV, is presented. The detector performances, measured with photons produced in several capture reactions, are reported and compared with the predictions of a Monte Carlo code, and with performances of a NaI spectrometer of very similar design.