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9 results on '"Ciraldo, I."'

1. Identification of medium mass (A=60–80) ejectiles from 15 MeV/nucleon peripheral heavy-ion collisions with the MAGNEX large-acceptance spectrometer

Author

Souliotis, G.A., Koulouris, S., Cappuzzello, F., Carbone, D., Pakou, A., Agodi, C., Brischetto, G., Calabrese, S., Cavallaro, M., Ciraldo, I., Klimo, J., Sgouros, O., Soukeras, V., Spatafora, A., Torresi, D., and Veselsky, M.

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Rare isotope production, MAGNEX, FOS: Physical sciences, Magnetic spectrometer, Instrumentation and Detectors (physics.ins-det), Multinucleon transfer, Nuclear Experiment (nucl-ex), Nuclear Experiment, Instrumentation, Particle identification
Abstract

An approach to identify medium-mass ejectiles from peripheral heavy-ion reactions in the energy region of 15 MeV/nucleon is developed for data obtained with a large acceptance magnetic spectrometer. This spectrometer is equipped with a focal plane multidetector, providing position, angle, energy loss and residual energy of the ions along with measurement of the time-of-flight. Ion trajectory reconstruction is performed at high order and ion mass is obtained with a resolution of better than 1/150. For the unambiguous particle identification however, the reconstruction of both the atomic number Z and the ionic charge q of the ions is critical and it is suggested, within this work, to be performed prior to mass identification. The new proposed method was successfully applied to MAGNEX spectrometer data, for identifying neutron-rich ejectiles related to multinucleon transfer generated in the 70Zn+ 64Ni collision at 15 MeV/nucleon. This approach opens up the possibility of employing heavy-ion reactions with medium-mass beams below the Fermi energy (i.e., in the region 15-25 MeV/nucleon) in conjunction with large acceptance ray tracing spectrometers, first, to study the mechanism(s) of nucleon transfer in these reactions and, second, to produce and study very neutron-rich or even new nuclides in previously unexplored regions of the nuclear landscape., 6 pages, 6figures

Published
2022
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2. Study of the 4He(4He,4He)4He* inelastic scattering at the MAGNEX facility.

Author

Soukeras, V., Cappuzzello, F., Cavallaro, M., Carbone, D., Hacisalihoglu, A., Fisichella, M., Agodi, C., Becker, H.-W., Brischetto, G. A., Calabrese, S., Ciampi, C., Cicerchia, M., Cinausero, M., Ciraldo, I., D΄ Andrea, M., Dell΄ Aquila, D., Firat, S., Frosin, C., Hilcker, M., and La Fauci, L.

Subjects
INELASTIC scattering, HELIUM, MAGNETIC spectrometer, DATA reduction, SILICON
Abstract

The 4He(4He,4He)4He* inelastic scattering was revisited in a new coincidence measurement at the MAGNEX facility of Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali del Sud. The 4He + 4He → 4He + 4He* → 4He + 3H + 1H and 4He + 4He → 4He + 4He* → 4He + 3He + n reactions were measured simultaneously by detecting the 4He particles at the MAGNEX magnetic spectrometer in coincidence with the 3H and 3He at the OSCAR silicon telescope. The main concept of the experiment is described and the data reduction strategy is reported. [ABSTRACT FROM AUTHOR]

Published
2021
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3. Recent results for the one-proton transfer reaction in the 18O+48Ti collision at 275 MeV.

Author

Sgouros, O., Cavallaro, M., Cappuzzello, F., Carbone, D., Agodi, C., Altana, C., Brischetto, G. A., Burrello, S., Calabrese, S., Calvo, D., Capirossi, V., Chávez Lomelí, E. R., Ciraldo, I., Cutuli, M., De Gregorio, G., Delaunay, F., Djapo, H., Eke, C., Finocchiaro, P., and Fisichella, M.

Subjects
PROTON transfer reactions, TITANIUM, COLLISIONS (Nuclear physics), CHARGE exchange reactions, ANGULAR distribution (Nuclear physics), MAGNETIC spectrometer
Abstract

The 18O+48Ti reaction was studied at the energy of 275 MeV for the first time under the NUMEN and NURE experimental campaigns with the aim to investigate the complete net of reaction channels potentially involved in the 48Ca→48Ti double charge exchange transition. Such a transition is of great interest because of its relevance to the extraction of 48Ca→48Ti double beta decay nuclear matrix element. The relevant experiment was carried out at the MAGNEX facility of INFN-LNS in Catania. Angular distribution measurements for the various reaction products were performed by using the MAGNEX large acceptance magnetic spectrometer. The present contribution is focused on the analysis of the one-proton transfer channel with emphasis on the particle identification technique and the estimation of background contaminations. [ABSTRACT FROM AUTHOR]

Published
2021
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4. The NUMEN project @ LNS: Status and perspectives

Author

Cappuzzello, F., Agodi, C., Acosta, L., Amador-Valenzuela, P., Auerbach, N., Barea, J., Bellone, J.I., Belmont, D., Bijker, R., Bonanno, D., Borello-Lewin, T., Boztosun, I., Branchina, V., Brasolin, S., Brischetto, G., Brunasso, O., Burrello, S., Calabrese, S., Calabretta, L., Calvo, D., Capirossi, V., Carbone, D., Cavallaro, M., Chen, R., Ciraldo, I., Chávez Lomelí, E.R., Colonna, M., D'Agostino, G., Djapo, H., De Geronimo, G., Delaunay, F., Deshmukh, N., de Faria, P.N., Espejel, R., Ferraresi, C., Ferreira, J.L., Ferretti, J., Finocchiaro, P., Firat, S., Fisichella, M., Flores, A., Foti, A., Gallo, G., Garcia-Tecocoatzi, H., Góngora, B., Hacisalihoglu, A., Hazar, S., Huerta, A., Kotila, J., Kucuk, Y., Iazzi, F., Lanzalone, G., La Via, F., Lay, J.A., Lenske, H., Linares, R., Longhitano, F., Presti, D.Lo, Lubian, J., Ma, J., Marín-Lámbarri, D., Martínez, S., Mas, J., Medina, N.H., Mendes, D.R., Mereu, P., Moralles, M., Oliveira, J.R.B., Ordoñez, C., Pakou, A., Pandola, L., Petrascu, H., Pietralla, N., Pinna, F., Reito, S., Reza, G., Ries, P., Rifuggiato, D., Rodrigues, M.R.D., Russo, A.D., Russo, G., Sandoval, S., Santopinto, E., Santos, R.B.B., Sgouros, O., Silveira, M.A.G. da, Solakci, S.O., Souliotis, G., Soukeras, V., Spatafora, A., Torresi, D., Tudisco, S., Vsevolodovna, R.I.M., Vargas, H., Vega, G., Wang, J.S., Werner, V., Yang, Y.Y., Yildirin, A., Zagatto, V.A.B., Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), NUMEN, and Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
detector: technology, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], measurement methods, CHARGE-EXCHANGE REACTIONS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], cyclotron: superconductivity, 7. Clean energy, 01 natural sciences, oxygen: nuclide, SCINTILLATOR, FIELD MEASUREMENT, double-beta decay: (0neutrino), 0103 physical sciences, accelerator: technology, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear structure, 010306 general physics, activity report, 010308 nuclear & particles physics, Nuclear Matrix Element, Cyclotrons, charge exchange, magnetic spectrometer, neon: nuclide, CHARGE-EXCHANGE REACTIONS, FIELD MEASUREMENT, SCINTILLATOR, upgrade
Abstract

International audience; The NUMEN project aims at accessing experimentally driven information on Nuclear Matrix Elements (NME) involved in the half-life of the neutrinoless double beta decay (0νββ), by high-accuracy measurements of the cross sections of Heavy Ion (HI) induced Double Charge Exchange (DCE) reactions. Particular attention is given to the (18O,18Ne) and (20Ne,20O) reactions as tools for β+β+ and β−β− decays, respectively. First evidence about the possibility to get quantitative information about NME from experiments is found for both kind of reactions. In the experiments, performed at INFN - Laboratory Nazionali del Sud (LNS) in Catania, the beams are accelerated by the Superconducting Cyclotron (CS) and the reaction products are detected by the MAGNEX magnetic spectrometer. The measured cross sections are challengingly low, limiting the present exploration to few selected isotopes of interest in the context of typically low-yield experimental runs. A major upgrade of the LNS facility is foreseen in order to increase the experimental yield of at least two orders of magnitude, thus making feasible a systematic study of all the cases of interest. Frontiers technologies are going to be developed, to this purpose, for the accelerator and the detection systems. In parallel, advanced theoretical models will be developed in order to extract the nuclear structure information from the measured cross sections.

Published
2019
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5. Challenges in double charge exchange measurements for neutrino physics

Author

Torresi, D., Agodi, C., Bellone, J., Bonanno, D., Branchina, V., Brasolin, S., Brischetto, G., Brunasso, O., Burrello, S., Calabrese, S., Calabretta, L., Calvo, D., Capirossi, V., Cappuzzello, F., Carbone, D., Cavallaro, M., Ciraldo, I., Colonna, M., D'Agostino, G., Delaunay, F., Ferretti, J., Finocchiaro, P., Fisichella, M., Foti, A., Gallo, G., Garcia-Tecocoatzi, H., Hacisalihoglu, A., Iazzi, F., Lanzalone, G., La Via, F., Lay, J.A., Longhitano, F., Lo Presti, D., Mereu, P., Pandola, L., Pinna, F., Reito, S., Rifugiato, D., Russo, A.D., Russo, G., Santopinto, E., Sgouros, O., Soukeras, V., Spatafora, A., Tudisco, S., Vsevolodovna, R.I.M., Borello-Lewin, T., de Faria, P.N., Ferreira, J.L., Linares, R., Lubian, J., Medina, N., Mendes, D.R., Moralles, M., Oliveira, J.R.B., Rodrigues, M.R.D., Santos, R.B.B., da Silveira, M.A.G., Zagatto, V.A.B., Pakou, A., Souliotis, G., Acosta, L., Amador, P., Bijker, R., Belmont, D., Chávez Lomeli, E.R., Espejel, R., Flores, A., Ggongora, B., Huerta, A., Marin-Lambarri, D., Martínez, S., Ordoñez, J. Mas C., Reza, G., Sandoval, S., Vargas, H., Vega, G., Lenske, H., Boztosun, I., Djapo, H., Firat, S., Hazar, S., Kucuk, Y., Solakci, S.O., Yildirin, A., Auerbach, N., Petrascu, H., Kotila, J., De Geronimo, G., Pietralla, N., Ries, P., Werner, V., Barea, J., Chen, R., Ma, J., Wang, J.S., Yang, Y.Y., Deshmukh, N., Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), NUMEN, and Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
cosmological model, double-beta decay: (0neutrino), neutrino: Majorana, semileptonic decay, neutrino: mass, cross section: measured, energy resolution: high, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], magnetic spectrometer, charge exchange, experimental results
Abstract

International audience; The neutrinoless double beta (0νββ) decay, if observed, has important implications on particle physics, cosmology and fundamental physics. In particular it can give access to the effective neutrino mass. In order to extract such information from the 0νββ-decay half-life measurement, the knowledge of the Nuclear Matrix Elements (NME) is of utmost importance. In this context the NUMEN and the NURE projects aim to extract information on the NME by measuring the Double Charge Exchange (DCE) reaction cross section in selected systems of interest for the 0νββ-decay. The experimental difficulties that have to be faced are the measurements at very forward-angle, the very low cross section of the process to be measured, the requirement of a high energy resolution and, eventually, the unambiguous identification of the DCE reaction from other competing processes. The large-acceptance spectrometer MAGNEX, present at INFN-LNS, Catania fulfills all the requirement above mentioned.

Published
2018

6. Characterization of a gas detector prototype based on Thick-GEM for the MAGNEX focal plane detector.

Author

Ciraldo, I., Brischetto, G.A., Torresi, D., Cavallaro, M., Agodi, C., Boiano, A., Calabrese, S., Cappuzzello, F., Carbone, D., Cortesi, M., Delaunay, F., Fisichella, M., Neri, L., Pandalone, A., Paolucci, P., Rossi, B., Sgouros, O., Soukeras, V., Spatafora, A., and Vanzanella, A.

Subjects
*GAS detectors, *FOCAL planes, *DETECTORS, *ION energy, *MAGNETIC spectrometer
Abstract

A new gas detector prototype for the upgrade of the focal plane detector of the MAGNEX large-acceptance magnetic spectrometer has been developed and tested in view of the NUMEN project. It has been designed to operate at low gas pressure for detecting medium to heavy ions in the energy range between 15 and 60 AMeV. It is a drift chamber based on Multi-layer Thick-GEM (M-THGEM) as electron multiplication technology. Tests with two different M-THGEM layouts have been performed using both a radioactive α -particle source and accelerated heavy-ion beams. The characterization of the detector in terms of measured currents that flow through the electrodes as a function of different parameters, including applied voltages, gas pressure and rate of incident particle, is described. The gain and ion backflow properties have been studied. [ABSTRACT FROM AUTHOR]

Published
2023
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7. The MAGNEX magnetic spectrometer for double charge exchange reactions.

Author

Cavallaro, M., Agodi, C., Brischetto, G.A., Calabrese, S., Cappuzzello, F., Carbone, D., Ciraldo, I., Pakou, A., Sgouros, O., Soukeras, V., Souliotis, G., Spatafora, A., and Torresi, D.

Subjects
*CHARGE exchange reactions, *MAGNETIC spectrometer, *NEUTRINO interactions, *ION channels, *NEUTRINOS, *NUCLEAR reactions
Abstract

Physics cases of increasing interest in the recent years, such as the study of double charge exchange reactions for neutrino physics, require the study of very suppressed reaction channels in medium-heavy ion induced nuclear reactions. The main experimental challenges are the possibility to identify and detect the medium-heavy quasi-projectiles and the capability to measure very low cross-sections (few nb) with high sensitivity at very forward angles, including zero degree. The experimental techniques adopted in the setup of the MAGNEX magnetic spectrometer to face these issues are described in this paper. [ABSTRACT FROM AUTHOR]

Published
2020
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8. An upgraded focal plane detector for the MAGNEX spectrometer.

Author

Torresi, D., Sgouros, O., Soukeras, V., Cavallaro, M., Cappuzzello, F., Carbone, D., Agodi, C., Brischetto, G.A., Calabrese, S., Ciraldo, I., Deshmukh, N., Hacisalihoglu, A., Fauci, L. La, and Spatafora, A.

Subjects
*FOCAL planes, *MAGNETIC spectrometer, *DETECTORS, *SIGNAL-to-noise ratio, *SILICON detectors
Abstract

An upgraded and improved version of the Focal Plane Detector (FPD) of the large-acceptance magnetic spectrometer MAGNEX is described here. The FPD consists of a tracker operating at low pressure and of a silicon detector wall. Thanks to a different geometry of the electron multiplication and induction elements, the new detector guarantees a superior signal to noise ratio, resulting in a more accurate tracking and a cleaner identification of the detected heavy ions. The new detector has been tested by using a 18O beam at an energy of 84 MeV. A description of the new FPD that pinpoints the innovation and the obtained performances is given and discussed in details. [ABSTRACT FROM AUTHOR]

Published
2021
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9. Analysis of the background on cross section measurements with the MAGNEX spectrometer: The (20Ne, 20O) Double Charge Exchange case.

Author

Calabrese, S., Cappuzzello, F., Carbone, D., Cavallaro, M., Agodi, C., Torresi, D., Acosta, L., Bonanno, D., Bongiovanni, D., Borello-Lewin, T., Boztosun, I., Brischetto, G.A., Calvo, D., Ciraldo, I., Deshmukh, N., de Faria, P.N., Finocchiaro, P., Foti, A., Gallo, G., and Hacisalihoglu, A.

Subjects
*CHARGE exchange, *CHARGE exchange reactions, *MAGNETIC spectrometer, *SPECTROMETERS, *HEAVY ions
Abstract

The MAGNEX magnetic spectrometer is used in the experimental measurements of Double Charge Exchange and Multi-Nucleon Transfer reactions induced by heavy ions within the NUMEN project. These processes are characterized by small cross sections under a large background due to other reaction channels. Therefore an accurate control of the signal to background ratio is mandatory. In this article, the determination of the MAGNEX spectrometer background contribution on cross section measurements is presented by applying a suitable analysis to quantify the limits of the adopted particle identification technique. The method is discussed considering the 116Cd(20Ne, 20O)116Sn Double Charge Exchange reaction data, however it can be applied to any other reaction channel of interest. [ABSTRACT FROM AUTHOR]

Published
2020
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