States of [sup 15]C via the ([sup 18]O,[sup 16]O) reaction

Abstract

A study of the 15 C states was pursued in 2008 at the Catania INFN-LNS laboratory by the 13 C( 18 O, 16 O) 15 C reaction at 84 MeV incident energy. The 16 O ejectiles were detected at forward angles by the MAGNEX magnetic spectrometer. The spectra show several known low lying states up to about 7 MeV excitation energy as well as two unknown resonant structures at about 11.4 and 13.5 MeV. The strong excitation of these latter together with the measured width of about 2 MeV FWHM could indicate the presence of collective modes of excitation connected to the transfer of a correlated neutron pair.

Analysis of two-proton transfer in the 40Ca(18O,20Ne)38Ar reaction at 270 MeV incident energy

“…In Ref. [30] the study of the 40 Ca( 18 O, 20 Ne) 38 Ar two-proton pickup reaction at 48 MeV was reported. The shapes of the angular distributions were typical of a grazing reaction at energies near the Coulomb barrier.…”

“…Besides, transfer reactions may be an important channel to take into account in charge exchange processes since they can represent a competing contribution to the final cross section. The two-proton pickup transfer reaction 40 Ca( 18 O, 20 Ne) 38 Ar has been measured at 270 MeV and the angular distributions for transitions to different excited states extracted. This work shows the analysis of the data performed by finite-range coupled reaction channel and coupled channel Born approximation methods.…”

Μελέτη του συστήματος 6Li+p σε αντίστροφη κινηματική με το φασματόμετρο MAGNEX

“…the elastic scattering measurement, the breakup measurement, obtained with the MAGNEX spectrometer [80][81][82][83][84][85][86][87][88][89], and the measurement of the reaction p( 6 Li, 3 He) 4 He. The last, performed with a module of the GLORIA/DINEX array [117], was the subject of the M.Sc.…”

“…The experimental setup was visualized at the MAGNEX facility [80][81][82][83][84][85][86][87][88][89] MeV and impinged on CH 2 targets of appropriate thicknesses. Measurements were repeated with 12 C targets of similar thicknesses, for estimating the background in the data due to the 12 C presence in the CH 2 targets.…”

“…[69]. Considering all the above, it was proposed the investigation of the system 6 Li + p, including both elastic scattering and breakup measurements, at four near barrier energies, namely 16, 20, In particular, the elastic scattering of protons by 6 Li is revisited in inverse kinematics and by using the MAGNEX spectrometer [80][81][82][83][84][85][86][87][88][89]. By setting MAGNEX close to zero, and thanks to its large acceptance, we can span almost a full angular range in the center of mass frame all in one go, facilitating our normalization via Rutherford scattering at the most forward angles.…”