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1. A Constrained Analysis of the $^{40}$Ca($^{18}$O,$^{18}$F)$^{40}$K Direct Charge Exchange Reaction Mechanism at 275 MeV

Author

V. Soukeras, O. Sgouros, V. A. B. Zagatto, Horst Lenske, Luis Acosta, J. I. Bellone, Canel Eke, C. Agodi, Thereza Borello-Lewin, A. Foti, Maria Fisichella, Daniela Calvo, A. Hacisalihoglu, Federico Pinna, Alessandro Spatafora, G. A. Souliotis, P. Amador-Valenzuela, J. Lubian, I. Ciraldo, Maria Colonna, S. Firat, G. V. Russo, G. A. Brischetto, Luciano Pandola, D. Torresi, Salvatore Calabrese, Nilberto H. Medina, S. O. Solakci, Felice Iazzi, A. Pakou, Mauricio Moralles, M. A. Guazzelli, Paolo Finocchiaro, Roberto Linares, S. Burrello, H. Djapo, Manuela Cavallaro, Francesco Cappuzzello, M. Cutuli, Diana Carbone, Franck Delaunay, V. Capirossi, Salvatore Tudisco, H. Petrascu, E. Chávez, L. La Fauci, J. R. B. Oliveira, A. Yildirin, N. N. Deshmukh, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), 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), and NUMEN

Subjects
Reaction mechanism, Astronomy, Geophysics. Cosmic physics, elastic scattering, QB1-991, Inelastic scattering, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Molecular physics, Charge exchange reactions, Elastic scattering, Magnetic spectrometer, Neutrinoless double beta (0vββ) decay, Nuclear physics, 0103 physical sciences, Incident energy, 010306 general physics, Polarization (electrochemistry), Quantum, Nuclear Physics, Physics, 010308 nuclear & particles physics, QC801-809, Nuclear structure, neutrinoless double beta (0vββ) decay, Astronomy and Astrophysics, charge exchange reactions, Charge exchange
Abstract

The40Ca(18O,18F)40K single charge exchange (SCE) reaction is explored at an incident energy of 275 MeV and analyzed consistently by collecting the elastic scattering and inelastic scattering data under the same experimental conditions. Full quantum-mechanical SCE calculations of the direct mechanism are performed by including microscopic nuclear structure inputs and adopting either a bare optical potential or a coupled channel equivalent polarization potential (CCEP) constrained by the elastic and inelastic data. The direct SCE mechanism describes the magnitude and shape of the angular distributions rather well, thus suggesting the suppression of sequential multi-nucleon transfer processes.

Published
2021
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2. Recent results on Heavy-Ion induced reactions of interest for 0νββ decay

Author

P. Amador-Valenzuela, H. Garcia-Tecocoatzi, A. Foti, J. Kotila, Alessandro Spatafora, M. A. G. da Silveira, A. Hacisalihoglu, K. De Los Rios, Carlo Ferraresi, A. Pakou, O. Brunasso, Diana Carbone, N. N. Deshmukh, Luis Acosta, G. A. Souliotis, S. O. Solakci, J. R. B. Oliveira, J. Mas Ruiz, Salvatore Calabrese, Jacopo Ferretti, S. Brasolin, J. Lubian, L. La Fauci, G. A. Brischetto, P. Ries, Y. Kucuk, Mauricio Moralles, Akın Yıldırım, Manuela Cavallaro, L. Serbina, G.V. Russo, S. Burrello, J. A. Lay, R. Chen, J. L. Ferreira, Roelof Bijker, R. B. B. Santos, Federico Pinna, Ismail Boztosun, Giuseppe Gallo, D. R. Mendes, Lorenzo Neri, D. J. Marín-Lámbarri, J. Barea, Y.Y. Yang, Daniela Calvo, Luciano Pandola, Maria Colonna, Paolo Mereu, Felice Iazzi, Nilberto H. Medina, Grazia D'Agostino, D. Lo Presti, R. I. M. Vsevolodovna, F. La Via, Franck Delaunay, C. Agodi, V. Capirossi, H. Djapo, O. Sgouros, S. Reito, M.R.D. Rodrigues, J. I. Bellone, Thereza Borello-Lewin, Horst Lenske, V. Soukeras, Luciano Calabretta, I. Ciraldo, A. D. Russo, G. Lanzalone, L. E. Charon Garcia, H. Vargas Hernandez, Norbert Pietralla, Paolo Finocchiaro, Elena Santopinto, V. Branchina, V. Werner, D. Torresi, S. Firat, A. Huerta-Hernandez, Maria Fisichella, S. Tudisco, J.S. Wang, H. Petrascu, J. Ma, Naftali Auerbach, Roberto Linares, Francesco Cappuzzello, E. R. Chávez Lomelí, Danilo Bonanno, C. Altana, G. De Geronimo, 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
History, measurement methods, nuclear matrix elements, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], heavy-ion induced Double Charge Exchange, neutrinoless double beta decay, 01 natural sciences, Education, Nuclear physics, oxygen: nuclide, double-beta decay: (0neutrino), Double beta decay, 0103 physical sciences, Beta (velocity), neutrino: mass, 010306 general physics, Nuclear Experiment, Physics, nucleus: semileptonic decay, Measurement method, operator: transition, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, particle: Majorana, charge exchange, magnetic spectrometer, Beta decay, heavy ion, Computer Science Applications, neon: nuclide, Heavy ion, High Energy Physics::Experiment, Neutrino, Charge exchange
Abstract

An updated overview of recent results on Heavy-Ion induced reactions of interest for neutrinoless double beta decay is reported in the framework of the NUMEN project. The NUMEN idea is to study heavy-ion induced Double Charge Exchange (DCE) reactions with the aim to get information on the nuclear matrix elements for neutrinoless double beta (0νββ) decay. Moreover, to infer the neutrino average masses from the possible measurement of the half- life of 0νββ decay, the knowledge of the nuclear matrix elements is a crucial aspect. Uma visão geral atualizada dos resultados recentes sobre reações induzidas por íons pesados ​​de interesse para o decaimento beta duplo sem neutrinos é relatada na estrutura do projeto NUMEN. A ideia do NUMEN é estudar reações de Double Charge Exchange (DCE) induzidas por íons pesados ​​com o objetivo de obter informações sobre os elementos da matriz nuclear para o decaimento beta duplo sem neutrinos (0νββ). Além disso, para inferir as massas médias dos neutrinos a partir da possível medição da meia-vida do decaimento 0νββ, o conhecimento dos elementos da matriz nuclear é um aspecto crucial. 1308 012002

Published
2019
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3. New Results from the NUMEN Project

Author

Daniela Calvo, Maria Colonna, G. A. Brischetto, Y. Kucuk, S. Brasolin, H. Garcia-Tecocoatzi, D. R. Mendes, S. O. Solakci, P. Ries, Francesco Cappuzzello, E. R. Chávez Lomelí, P. Amador-Valenzuela, Elena Santopinto, Ismail Boztosun, D. J. Marín-Lámbarri, Luciano Pandola, Lorenzo Neri, M. A. G. da Silveira, S. Firat, A. Hacisalihoglu, K. De Los Rios, J. Barea, Nilberto H. Medina, S. Reito, Diana Carbone, A. Foti, J. Kotila, Carlo Ferraresi, I. Ciraldo, Y.Y. Yang, Grazia D'Agostino, D. Lo Presti, S. Tudisco, A. Pakou, Luis Acosta, A. D. Russo, Naftali Auerbach, V. Soukeras, H. Djapo, C. Altana, Mauricio Moralles, N. N. Deshmukh, M.R.D. Rodrigues, J. I. Bellone, V. A. B. Zagatto, Thereza Borello-Lewin, Paolo Finocchiaro, J. Mas Ruiz, Salvatore Calabrese, Felice Iazzi, G.V. Russo, C. Agodi, Roelof Bijker, O. Sgouros, Luciano Calabretta, G. De Geronimo, F. La Via, Franck Delaunay, Jacopo Ferretti, J.S. Wang, Horst Lenske, Alessandro Spatafora, V. Capirossi, Paolo Mereu, J. A. Lay, R. Chen, R. I. M. Vsevolodovna, V. Werner, H. Petrascu, J. Ma, O. Brunasso, G. A. Souliotis, Roberto Linares, Danilo Bonanno, J. R. B. Oliveira, J. L. Ferreira, Giuseppe Gallo, H. Vargas Hernandez, Norbert Pietralla, Akın Yıldırım, G. Lanzalone, L. E. Charon Garcia, L. Serbina, V. Branchina, R. B. B. Santos, Federico Pinna, D. Torresi, A. Huerta-Hernandez, S. Burrello, L. La Fauci, Maria Fisichella, Manuela Cavallaro, J. Lubian, 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), and NUMEN

Subjects
Semileptonic decay, heavy ion: scattering, Cyclotron, Context (language use), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, law.invention, Nuclear physics, double-beta decay: (0neutrino), law, Double beta decay, 0103 physical sciences, cyclotron, 010306 general physics, Physics, nucleus: semileptonic decay, Spectrometer, 010308 nuclear & particles physics, resolution, cross section: measured, magnetic spectrometer, charge exchange, Upgrade, upgrade, Neutrino, Order of magnitude, experimental results
Abstract

International audience; NUMEN 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. First evidence about the possibility to get quantitative information about NME from experiments is found for the (^18O,^18Ne) and (^20Ne,^20O) reactions. Moreover, to infer the neutrino average masses from the possible measurement of the half-life of 0νββ decay, the knowledge of the NME is a crucial aspect. The key tools for this project are the high resolution Superconducting Cyclotron beams and the MAGNEX magnetic spectrometer at INFN Laboratori Nazionali del Sud in Catania (Italy). The measured cross sections are extremely 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.

Published
2018
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4. The NUMEN project: NUclear Matrix Elements for Neutrinoless double beta decay

Author

D. R. Mendes, Riccardo Introzzi, Roelof Bijker, J. Lubian, J. R. B. Oliveira, Manuela Cavallaro, Annamaria Muoio, Luciano Pandola, Ismail Boztosun, Grazia D'Agostino, S. O. Solakci, R. Magana Vsevolodovna, Nilberto H. Medina, D. Bongiovanni, Elena Santopinto, Grazia Litrico, L. Acosta, A. Yildirin, A. Hacisalihoglu, P. N. de Faria, Alessandro Spatafora, J. L. Ferreira, Francesco Cappuzzello, E. R. Chávez Lomelí, Mauricio Moralles, G. V. Russo, A. Pakou, M. A. G. da Silveira, H. Lenske, Salvatore Tudisco, R. B. B. Santos, Daniela Calvo, D. Torresi, O. Brunasso, Maria Colonna, Naftali Auerbach, Giuseppe Gallo, S. Burrello, Fabio Longhitano, D. Lo Presti, H. Petrascu, Luciano Calabretta, J. I. Bellone, Federico Pinna, G. A. Souliotis, Thereza Borello-Lewin, C. Agodi, F. La Via, Franck Delaunay, Maria Fisichella, A. D. Russo, H. Garcia, Roberto Linares, Salvatore Calabrese, Danilo Bonanno, Vincenzo Greco, A. Calanna, G. De Geronimo, G. Lanzalone, S. Reito, Diana Carbone, G. Santagati, J. A. Lay, Danilo Rifuggiato, A. Foti, V. Soukeras, V. A. B. Zagatto, N. N. Deshmukh, Paolo Finocchiaro, Felice Iazzi, O. Sgouros, 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), 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
SiC, Nuclear and High Energy Physics, wave function, Physics - Instrumentation and Detectors, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Strong interaction, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, Coincidence, Nuclear physics, Cross section (physics), Acceleration, double-beta decay: (0neutrino), Double beta decay, 0103 physical sciences, neutrini, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, detectors, Physics, Spectrometer, operator: transition, 010308 nuclear & particles physics, strong interaction, resolution, acceleration, Instrumentation and Detectors (physics.ins-det), charge exchange, Upgrade, many-body problem, neutrino: Majorana, magnetic spectrometer: acceptance, beam: heavy ion, Beam (structure), experimental results
Abstract

International audience; The article describes the main achievements of the NUMEN project together with an updated and detailed overview of the related R&D activities and theoretical developments. NUMEN proposes an innovative technique to access the nuclear matrix elements entering the expression of the lifetime of the double beta decay by cross section measurements of heavy-ion induced Double Charge Exchange (DCE) reactions. Despite the fact that the two processes, namely neutrinoless double beta decay and DCE reactions, are triggered by the weak and strong interaction respectively, important analogies are suggested. The basic point is the coincidence of the initial and final state many-body wave functions in the two types of processes and the formal similarity of the transition operators. First experimental results obtained at the INFN-LNS laboratory for the$^{40}$Ca($^{18}$O,$^{18}$Ne)$^{40}$Ar reaction at 270MeV give an encouraging indication on the capability of the proposed technique to access relevant quantitative information. The main experimental tools for this project are the K800 Superconducting Cyclotron and MAGNEX spectrometer. The former is used for the acceleration of the required high resolution and low emittance heavy-ion beams and the latter is the large acceptance magnetic spectrometer for the detection of the ejectiles. The use of the high-order trajectory reconstruction technique, implemented in MAGNEX, allows to reach the experimental resolution and sensitivity required for the accurate measurement of the DCE cross sections at forward angles. However, the tiny values of such cross sections and the resolution requirements demand beam intensities much larger than those manageable with the present facility. The on-going upgrade of the INFN-LNS facilities in this perspective is part of the NUMEN project and will be discussed in the article.

Published
2018
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5. The NUMEN project @ LNS: Status and perspectives

Author

Riccardo Introzzi, Roelof Bijker, Andrea Lavagno, A. D. Russo, L. Acosta, Richard Wheadon, G. V. Russo, G. A. Souliotis, D. R. Mendes, Naftali Auerbach, Maria Fisichella, Fabio Longhitano, M.R.D. Rodrigues, Elena Santopinto, Felice Iazzi, R. I. M. Vsevolodovna, F. La Via, Franck Delaunay, J. I. Bellone, Thereza Borello-Lewin, H. Petrascu, P. N. de Faria, J. Lubian, Daniela Calvo, S. Reito, Maria Colonna, Vincenzo Greco, V. Soukeras, Grazia D'Agostino, Alessandro Spatafora, A. Hacisalihoglu, Diana Carbone, M.P. Bussa, Luciano Calabretta, A. Foti, J. Kotila, J. R. B. Oliveira, Ismail Boztosun, Carlo Ferraresi, Paolo Finocchiaro, D. Torresi, Francesco Cappuzzello, E. R. Chávez Lomelí, Salvatore Calabrese, A. Pakou, A. Calanna, H. Lenske, O. Sgouros, U. Garcia, V. A. B. Zagatto, V. Branchina, Grazia Litrico, A. Yildirin, Giuseppe Gallo, Salvatore Tudisco, Luciano Pandola, Nilberto H. Medina, D. Lo Presti, G. Santagati, J. A. Lay, D. Bongiovanni, Danilo Rifuggiato, Giuseppe Giraudo, N. N. Deshmukh, Abdullah Coban, Manuela Cavallaro, J. L. Ferreira, C. Agodi, Federico Pinna, S. O. Solakci, G. Lanzalone, Roberto Linares, Danilo Bonanno, Annamaria Muoio, G. Degeronimo, 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), Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Civitarese, Osvaldo, Stekl, Ivan, and Suhonen, Jouni

Subjects
spectroscopy, accelerator, spektroskopia, Cyclotron, nucleus: energy, Context (language use), Scintillator, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, law.invention, Nuclear physics, Physics and Astronomy (all), double-beta decay: (0neutrino), law, Double beta decay, 0103 physical sciences, cyclotron, 010306 general physics, Physics, Spectrometer, ta114, operator: transition, 010308 nuclear & particles physics, cyclotrons nuclear structure, Nuclear structure, radioactive decay, semileptonic decay, cross section: measured, magnetic spectrometer, charge exchange, charge exchange reactions, heavy ion, Upgrade, Order of magnitude, experimental results
Abstract

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 Heavy Ion (HI) induced Double Charge Exchange (DCE) reaction cross sections. In particular, the (18O,18Ne) and (20Ne,20O) reactions are used as tools for β+β+ and β−β− decays, respectively. 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 ejectiles are detected the MAGNEX magnetic spectrometer. The measured cross sections are challengingly low (a few nb), being the total reaction cross section much larger (a few b), thus a high sensitivity and a large rejection capability are demanded to the experimental set-up. This limits 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, still keeping the high sensitivity of the present set-up, making it 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 are being developed in order to extract the nuclear structure information from the measured cross sections.

Published
2017
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6. Alpha Cluster Structure in 16O

Author

H. Miyake, Dario Bondì, Brighitta Horodynski-Matsushigue, Thereza Borello-Lewin, S. Tropea, Dario Nicolosi, M. R. D. Rodrigues, Angelo Cunsolo, Marzio De Napoli, J. L. M. Duarte, C. L. Rodrigues, M. A. Souza, Diana Carbone, Pedro Neto de Faria, Antonio Foti, G. M. Ukita, C. Agodi, Francesco Cappuzzello, and Manuela Cavallaro

Subjects
Work (thermodynamics), Range (particle radiation), Computer science, Physics, QC1-999, Resolution (electron density), Cluster (physics), Applied mathematics, Nuclear emulsion, Center of mass, Limit (mathematics), Atomic physics, Resonance (particle physics)
Abstract

The main purpose of the present work is the investigation of the α-cluster phenomenon in 16 O. The 12 C( 6 Li,d) 16 O reaction was measured at a bombarding energy of 25.5 MeV employing the Sao Paulo Pelletron-Enge-Spectrograph facility and the nuclear emulsion detection technique. Resonant states around 4α threshold were measured and an energy resolution of 15 keV allows to define states previously unresolved. The angular distributions of the absolute cross sections were determined in a range of 4-40 degree in the center of mass system. The upper limit for the resonance widths was obtained, indicating that the α cluster structure information in this region should be revised.

Published
2014

7. Resonant states in 13C and 16,17O at high excitation energy

Author

H. Miyake, J. L. M. Duarte, A. Foti, Roberto Linares, L. B. Horodynski-Matsushigue, M. Bondì, Thereza Borello-Lewin, M. R. D. Rodrigues, A. Cunsolo, Francesco Cappuzzello, I. Lombardo, Manuela Cavallaro, C. L. Rodrigues, G. M. Ukita, C. Agodi, Brian Roeder, Daniele Carbone, and M. De Napoli

Subjects
Physics, Nuclear reaction, History, Spectrometer, Isotopes of lithium, Resonance, Computer Science Applications, Education, Nuclear physics, Physics::Accelerator Physics, Nuclear emulsion, Atomic physics, Nuclear Experiment, Isotopes of beryllium, Excitation, Oxygen-16
Abstract

The 9Be(6Li,d)13C and 12,13C(6Li,d)16,17O reactions were measured at the Sao Paulo Pelletron-Enge-Spectrograph facility at 25.5 MeV incident energy. The nuclear emulsion detection technique was applied. Several narrow resonances were populated up to approximately 17 MeV of excitation energy. An excellent energy resolution was obtained: 40 keV for 13C and 15-30 keV for 16O. The upper limit for the resonance widths were determined. Recently, d-a angular correlations were measured at θd = 0° with incident energy of 25 MeV using the LNS Tandem-MAGNEX Spectrometer facility.

Published
2014

8. Resonances excited by the 9Be(6Li,d)13C reaction

Author

C. L. Rodrigues, M. A. Souza, Francesco Cappuzzello, H. Miyake, A. Cunsolo, J. L. M. Duarte, L. B. Horodynski-Matsushigue, M R D Rodrigues, G. M. Ukita, and Thereza Borello-Lewin

Subjects
Physics, Nuclear and High Energy Physics, Cluster state, Excited state, Resolution (electron density), General Physics and Astronomy, Nuclear emulsion, Atomic physics
Abstract

Alpha resonant states in 13 C up to 15 MeV were excited by the 9 Be (6 Li , d )13 C reaction. The data were taken at a bombarding energy of 25.5 MeV employing the São Paulo-Pelletron-Enge Split Pole facility and the nuclear emulsion technique. The resolution of 50 keV allowed for the separation of the resonant contributions to the known 7/2- and (5/2-) states near the 9 Be + α threshold both associated with an L = 4 transfer. Several narrow alpha resonant states not previously measured were detected, in particular the one at the 3α + n threshold populated by an L = 2 transfer, revealing a 9Be + α component for the 1/2- cluster state candidate at this threshold.

Published
2011

9. Coulomb-nuclear interference (CNI) results of the collective quadrupolar excitations in odd and even Ru isotopes

Author

M. R. D. Rodrigues, C. L. Rodrigues, Thereza Borello-Lewin, L. B. Horodynski-Matsushigue, J. L. M. Duarte, G. N. Hanninger, and G. M. Ukita

Subjects
Physics, Nuclear physics, Pelletron, Cross section (physics), Isotope, Coulomb, General Physics and Astronomy, Nuclear data, Nuclear emulsion, Atomic physics, Nuclear Experiment, Multiplet, Excitation
Abstract

The study of the odd 99;101Ru nuclei complements the investigation of the collectivity of the first quadrupolar excitations in 100;102;104Ru. Angular distributions for the 99;101Ru(d, d') reactions at 13 MeV were obtained in the Pelletron Laboratory using nuclear emulsion plates on the focal plane of the Enge spectrograph. A Coulomb-Nuclar Interference analysis employing DWBA-DOMP predictions with global optical potential parameters was applied to the excitation of states which could belong to the multiplet built on the first quadrupolar excitation of the core. In the analysis, three states were identified for each of the isotopes and associated, respectively, with adopted levels in the Nuclear Data Sheets Compilation of Jpi= 5=2+, 7=2+ and 9=2+. Through the comparison of experimental and predicted cross section angular distributions, the values of ()² and of the ratio C = / were obtained.

Published
2004

10. Recent results on heavy-ion direct reactions of interest for 0νββ decay at INFN - LNS

Author

S. Burrello, E. Gandolfo, P. Adsley, V. Werner, V. Branchina, R. B. B. Santos, Manuela Cavallaro, G. V. Russo, H. Petrascu, D. R. Mendes, J.S. Wang, J. Ma, L. La Fauci, Roberto Linares, Canel Eke, V. A. B. Zagatto, V. Soukeras, P. Amador-Valenzuela, J. Lubian, Daniele Carbone, O. Sgouros, A. Hacisalihoglu, K. De Los Rios, M. A. G. da Silveira, O. Brunasso, Federico Pinna, Daniela Calvo, Francesco Cappuzzello, E. R. Chávez Lomelí, A. Pakou, R. Neveling, H. Garcia-Tecocoatzi, H. Lenske, S. Firat, H. Vargas Hernandez, Norbert Pietralla, R. I. M. Vsevolodovna, Maria Colonna, J. R. B. Oliveira, D. Gambacurta, J. A. Lay, R. Chen, C. Agodi, H. Djapo, L. Acosta, J. I. Bellone, Alessandro Spatafora, Luciano Pandola, Paolo Finocchiaro, Ismail Boztosun, M. Cutuli, S. O. Solakci, Nilberto H. Medina, Thereza Borello-Lewin, F. La Via, Franck Delaunay, L. Pellegri, Lorenzo Neri, D. Torresi, Jacopo Ferretti, A. Yildirin, G. Lanzalone, L. E. Charon Garcia, Y.Y. Yang, P. Ries, V. Capirossi, L. Serbina, A. Huerta-Hernandez, J. L. Ferreira, Maria Fisichella, D. J. Marín-Lámbarri, J. Barea, S. Reito, L. Campajola, G. A. Brischetto, Y. Kucuk, A. Foti, J. Kotila, Carlo Ferraresi, N. N. Deshmukh, J. Mas Ruiz, Salvatore Calabrese, D.C. Flechas Garcia, Felice Iazzi, Grazia D'Agostino, S. Brasolin, Roelof Bijker, C. Altana, H. Jivan, G. De Geronimo, S. Tudisco, Naftali Auerbach, G. A. Souliotis, Mauricio Moralles, Elena Santopinto, Luciano Calabretta, I. Ciraldo, A. D. Russo, Paolo Mereu, 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, Acosta, Luis, Amador-Valenzuela, Paulina, and Marín-Lámbarri, Daniel José

Subjects
Physics, nucleus: semileptonic decay, History, particle: Majorana, hiukkasfysiikka, cross section: measured, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], charge exchange, magnetic spectrometer, Computer Science Applications, Education, Nuclear physics, double-beta decay: (0neutrino), Heavy ion, upgrade, neutrino: mass, energy resolution: high, ydinfysiikka, beam: heavy ion, experimental results
Abstract

Neutrinoless double beta decay of nuclei, if observed, would have important implications on fundamental physics. In particular it would give access to the effective neutrino mass. In order to extract such information from 0νββ decay half-life measurements, 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 cross sections of Double Charge Exchange reactions in selected systems which are expected to spontaneously decay via 0νββ. In this work an overview of the experimental challenges that NUMEN is facing in order to perform the experiments with accelerated beams and the research and development activity for the planned upgrade of the INFN-LNS facilities is reported.

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11. Recent results on heavy-ion induced reactions of interest for neutrinoless double beta decay at INFN-LNS

Author

Felice Iazzi, H. Petrascu, Giuseppe Gallo, C. Agodi, Marcilei A. G. Silveira, Franck Delaunay, Manuela Cavallaro, O. Brunasso, A. Hacisalihoglu, K. De Los Rios, H. Garcia-Tecocoatzi, Laura La Fauci, Luis Garcia, Hesiquio Vargas Hernandez, Yan Yun Yang, G. A. Brischetto, Y. Kucuk, Russo G, A. Pakou, Naftali Auerbach, Paolo Finocchiaro, S. Firat, Maria Fisichella, M. R. D. Rodrigues, Jan Song Wang, V. Capirossi, I. Ciraldo, J. L. Ferreira, S. O. Solakci, Alessandro Spatafora, N. N. Deshmukh, S. Reito, Francesco La Via, D. J. Marín-Lámbarri, A. D. Russo, J. Barea, Mauricio Moralles, G. A. Souliotis, Norbert Pietralla, O. Sgouros, Gianluigi De Geronimo, C. Altana, A. Foti, H. Djapo, J. Lubian, Carlo Ferraresi, Junbing Ma, Elena Santopinto, Horst Lenske, V. Werner, A. Yildirin, V. Branchina, V. A. B. Zagatto, V. Soukeras, S. Brasolin, J. I. Bellone, P. Ries, Arcadio Huerta-Hernandez, Efrain R. Chávez Lomelí, D. Torresi, Thereza Borello-Lewin, Francesco Cappuzzello, R. B. B. Santos, Luciano Calabretta, Salvatore Tudisco, R. I. M. Vsevolodovna, S. Burrello, Federico Pinna, L. Acosta, Ismail Boztosun, Roelof Bijker, Lorenzo Neri, F. Ameil, Paolo Mereu, Diana Carbone, Daniela Calvo, Maria Colonna, D. R. Mendes, J. Mas Ruiz, Salvatore Calabrese, Ruofu Chen, Jenni Kotila, Domenico Lo Prest, Luciano Pandola, Nilberto H. Medina, G. Lanzalone, Leonardo Serbina, Roberto Linares, Danilo Bonanno, P. Amador-Valenzuela, José R. B. Oliveira, Jacopo Ferretti, J. A. Lay, Grazia D'Agostino, de Angelis, G., Corradi, L., 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, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, 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
History, experimental methods, heavy ion: scattering, QC1-999, heavy ion: charge exchange, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], hiukkasfysiikka, 7. Clean energy, 01 natural sciences, Education, Nuclear physics, double-beta decay: (0neutrino), Double beta decay, 0103 physical sciences, neutrino: mass, 010306 general physics, nucleus: semileptonic decay, Physics, 010308 nuclear & particles physics, particle: Majorana, Nuclear structure, cross section: measured, Special class, magnetic spectrometer, charge exchange, detector: upgrade, neon: nuclide, Computer Science Applications, heavy ion induced double charge exchange reactions, neutrino: Majorana, Heavy ion, energy resolution: high, ydinfysiikka, Charge exchange, experimental results
Abstract

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). In this view measurements of Heavy Ion (HI) induced Double Charge Exchange (DCE) reaction cross sections are performed with high-accuracy. In particular, the (18O,18Ne) and (20Ne,20O) reactions are used as tools for β+β+ and β-β- decays, respectively. 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 ejectiles are detected the MAGNEX magnetic spectrometer. The measured cross sections are challengingly low (a few nb), being the total reaction cross section much larger (a few b), thus a high sensitivity and a large rejection capability are demanded to the experimental set-up. This limits 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 under way in order to increase the experimental dataset of more than two orders of magnitude, still preserving the high sensitivity of the present set-up. When accomplished this effort will make the INFN-LNS as the state-of-the-art research infrastructure for the systematic study of all the cases of interest for 0νββ. In this view, frontiers technologies are going to be adopted for the accelerator and the detection systems. In parallel, advanced theoretical models are being developed in order to extract the nuclear structure information from the measured cross sections.

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