Status and Perspectives of the INFN-LNS In-Flight Fragment Separator

Trends in particle and nuclei identification techniques in nuclear physics experiments

“…Within the collaboration, in 2009, the SIDDHARTA experiment at the DAΦNE collider at LNF [30,31] performed a data taking campaign resulting in the highest precision measurement of KH, the first measurement of K 4 He in a gaseous target and the first measurement ever of K 3 He [32][33][34][35].…”

“…Nuclei like deuteron, tritium and 3 He are clearly identified in the p T range 0.7−1.4 GeV/c, 0.6 − 2 GeV/c, 2−7 GeV/c, respectively. Identification of 4 He is possible exploiting also the time of flight information (see Sect. 6.1.1).…”

“…The review will focus on active projects and will concentrate on the contributions of the Italian groups. A description of the state of the art is particularly timely in view of the new experimental scenarios connected to the upgrade programs of the accelerator facilities in the INFN National Laboratories of Legnaro (LNL) [2], Catania (LNS) [3][4][5], L'Aquila (LNGS) [6] and the new physics possibilities offered by CERN-LHC and BNL-EIC colliders [7].…”

Experimental nuclear astrophysics in Italy

“…Among the reactions of interest, AsFiN considers the 14 O(α,p) 17 F and the 18 Ne(α,p) 21 Na that could be the onset of a possible route that breaks out from the HCNO cycles, and the 34 Ar(α,p) 37 K, since 34 Ar is a waiting point in X-ray bursts nucleosynthesis. As long as SPES will not be available, the AsFiN collaboration plans to perform these measurements at LNS using the in Flight Radioactive Ion Beams (FRIBs) facility at LNS [161] and at other RIBs facilities such as CRIB-RIKEN and MARS-TAMU; then the research activity will be shifted on RIBs at SPES, owing to the foreseen intensities and beam quality. In particular, there is an accepted letter of intent about measurements involving 26 Al m (isomeric state at 228 keV, T 1/2 = 6.35 s) beam, for studying the 26 Al m (n,α) 23 Na and the 26 Al m (n,p) 26 Mg reactions by means of the THM, using a deuteron to transfer a neutron.…”

“…This allows to measure, with good confidence level, also branching ratios around 10 −7 and the study of rare excited levels decay of medium light ions. Moreover, thanks to the availability of intense radioactive beams in the range up to 70 mass units produced by the new FRAISE (FRAgment In-flight SEparator) fragment separator at LNS [161] the systematic study of the excitation and decay of pygmy resonance will be also pursued in order to better assess its importance in the astrophysical environments especially for the r-process. High energy and angular resolution particle-particle correlation measurements are important tools in both nuclear structure and nuclear dynamics studies in order to characterize the time scale and shape of emission sources in the dynamical evolution of heavy ion collisions.…”