Luciano Pandola's research while affiliated with INFN - Istituto Nazionale di Fisica Nucleare and other places

... However, uncertainties persist in modeling LAr's ionization response to low-energy nuclear and electronic recoils, particularly at lower masses. New measurements, like those from the ReD experiment [19], may alleviate these uncertainties, proving beneficial for DarkSide-LowMass. ...

... In the modified version used for this work, the crosssections of the BS and PP processes were multiplied by a set of coefficients, which increase with the particle energy [33,34]. These factors were computed beforehand through a full Monte Carlo simulation, where the radiation emission and pair production probability in the axial field of a PbWO 4 lattice were computed by directly integrating the quasiclassical Baier-Katkov formula on realistic particle trajectories [35,36,37,38]. This approach has been extensively validated in several studies, by comparing its predictions with the results obtained in beamtest campaigns performed in the last few years by the OREO collaboration [21,23,22,39]. ...

... The ReD experiment succed in cover the gap to 1-2 keV with a two-body kinematic approach. The analysis is ongoing to finalize the measures of the ionization yield and to constrain the parameter of the model developed by DarkSide-50 [11] for the next generation of experiments devoted to the light dark matter searches [12]. ...

... It should become operative in late 2024, producing UAr at a rate of 250 kg/d, i.e., around 420 days will be needed to obtain the target mass for DS20k, that is 100 t plus some spare of liquid. Argon will be stored in liquid phase, then shipped to the Aria plant in Sardinia [10], where it will undergo isotopic distillation. From there, UAr will be shipped to LNGS for the filling of the experiment, but for small samples: these will instead go to Laboratorio Subterráneo Canfranc (LSC), where the argon will be thoroughly characterized in the DArTinArDM detector [11]. ...

... Layers of Tyvek on the sides and bottom of the inside of the tank will serve as a reflector for the active muon veto and to delineate the uninstrumented dead layer of water. Without the active veto, the simulated cosmogenic neutron rate is 3.5 ± 0.7 counts kg×year [8]. This rate is reduced to under a count per year with the active veto. ...

... Despite the good energy resolution, it was not possible to isolate transitions to individual states due to the high level density of the residual odd nucleus. In the context of the ongoing upgrade of the INFN-LNS facility [111], G-NUMEN, an array of 110 LaBr3(Ce) scintillators, will be installed around the object point of the MAGNEX magnetic spectrometer to detect the gamma rays emitted from the deexcitation of the excited states populated via DCE reactions with good energy resolution and detection efficiency, amidst a background composed of transitions from competing reaction channels with far higher cross sections [112,113]. Initial tests have been conducted on the first detectors of the array, allowing for the determination of their performance at high rates [114]. ...

... The coupling between a specific direct reaction channel with the elastic and other quasielastic processes makes it necessary to study such processes in a common approach, where different reaction channels are explored at the same time and the data are consistently analyzed. A multichannel approach [10][11][12] was recently proposed to explore the complete network of nuclear reaction data and extract information on the relevant ingredients involved in DCE reactions. The implementation of the multichannel approach for the study of heavy-ion induced reactions shows a wide degree of complexity from both the experimental and theoretical points of view. ...

... The conceptual DarkSide-LowMass design has a nested structure to isolate and veto against radioactivity. The detector consists of the following elements; Depleted Argon TPC: the inner detector is a dual-phase TPC with an active (fiducial) mass of 1.5 t (1 t) of UAr, depleted of 39 Ar by cryogenic distillation [17]. Electroluminescence within a 1 cm-thick gas pocket at the top of TPC facilitates the counting of extracted electrons. ...

... Along the lines of the above studies, we investigated heavy-ion peripheral collisions at energies of [15][16][17][18][19][20][21][22][23][24][25] MeV/nucleon in order to access nuclides with high neutron excess. Initially, our studies involved 25 MeV/nucleon 86 Kr-induced reactions [39][40][41][42] and, subsequently, 15 MeV /nucleon 86 Kr-induced [43][44][45] and 40 Ar-induced reactions [46,47]. The aforementioned experiments were performed with the MARS recoil separator [48] at the Cyclotron Institute of Texas A&M University. ...

... The restriction of the vertical acceptance and the active area of the FPD resulted in the use of only seven of the silicon detectors belonging to the middle row of the silicon detector wall. We note that these experimental restrictions in the acceptance of the spectrometer will be circumvented in the future in view of the upgrade of MAGNEX [62]. Thus, in a full acceptance run, the whole area of the FPD can be exposed to the flux of the reaction products, allowing one to probe very suppressed reaction channels. ...