Engenharia Química

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Navegando Engenharia Química por Autor "ACOSTA, L."

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    Artigo
    First comparison of GEANT4 hadrontherapy physics model with experimental data for a NUMEN project reaction case
    (2020-05-26) OLIVEIRA, J. R. B.; BONANNO, D.; BORELLO-LEWIN, T.; BRISCHETTO, G. A.; CALABRESE, S.; CALVO, D.; CAPIROSSI, V.; CAPPUZZELLO, F.; CHAVEZ-LOMELÍ, E. R.; CIRALDO, I.; DELAUNAY, F.; MORALLES, M.; DJAPO, H.; EKE, C.; FINOCCHIARO, P.; FIRAT, S.; FISICHELLA, M.; FOTI, A.; GALLO, G.; GUAZZELLI, Marcilei Aparecida; HACISALIHOGLU, A.; IAZZI, F.; FLECHAS, D.; LINARES, R.; PRESTI, D. LO; MA, J.; MEDINA, N. H.; PAKOU, A.; PANDOLA, L.; PETRASCU, H.; PINNA, F.; REITO, S.; RIES, P.; CARBONE, D.; RUSSO, G.; SGOUROS, O.; SOLAKCI, S. O.; SOUKERAS, V.; SOULIOTIS, G.; SPATAFORA, A.; TUDISCO, S.; WANG, J. S.; YANG, Y. Y.; YILDIRIM, A.; CAVALLARO, M.; ZAGATTO, V. A. B.; TORRESI, D.; ACOSTA, L.; AGODI, C.; AMADOR-VALENZUELA, P.
    Gamma-ray and neutron spectra from the 18O +76Se reaction at 15.3 MeV/u were measured with the EDEN array of liquid scintillators at the LNS. The results were compared to GEANT Hadrontherapy physics list simulations in order to assess the reliability of this model for the development of the NUMEN project. A good agreement with the shape of the experimental gamma-ray spectra and a reasonable agreement with the total count rates were obtained. The gamma spectra originated from the nuclear reactions were selected by time coincidence with the Superconducting Cyclotron radio-frequency reference signal. The random coincidence background rate was appropriately described only when the Faraday Cup, the material and geometry of the experimental hall and its contents were included in the simulation with sufficient detail. The information on the radiation spectra is important for the adequate development of the project of the detector arrays and electronic equipment for the advanced phase of NUMEN. Since orders of magnitude larger beam intensities are planned for this phase, the random coincidence rate is also of significant importance, particularly for the performance of the G-NUMEN gamma calorimeter array
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    Artigo
    Recent results on heavy-ion direct reactions of interest for 0νββ decay at INFN - LNS
    (2020-01-05) CAVALLARO, M.; ACOSTA, L.; ADSLEY, P.; AGODI, C.; ALTANA, C.; AMADOR-VALENZUELA, P.; AUERBACH, N.; BAREA, J.; BELLONE, J. I.; BIJKER, R.; BORELLO-LEWIN, T.; BOZTOSUN, I.; BRANCHINA, V.; BRASOLIN, S.; BRISCHETTO, G. A.; BRUNASSO, O.; BURRELLO, S.; CAMPAJOLA, L.; CALABRESE, S.; CALABRETTA, L.; CALVO, D.; CAPIROSSI, V.; CAPPUZZELLO, F.; CARBONE, D.; CHARON GARCIA, L. E.; CHÁVEZ LOMELI, E. R.; CHEN, R.; CIRALDO, I.; COLONNA, M.; CUTULI, M.; D’ AGOSTINO, G.; DELAUNAY, F.; DESHMUKH, N.; DJAPO, H.; GAMBACURTA, D.; DE GERONIMO, G.; DE LOS RÌOS, K.; EKE, C.; FERRARESI, C.; FERREIRA, J. L.; FERRETTI, J.; FINOCCHIARO, P.; FIRAT, S.; FISICHELLA, M.; FLECHAS GARCIA, D. C.; FOTI, A.; GANDOLFO, E.; GARCIA-TECOCOATZI, H.; HACISALIHOGLU, A; HUERTA-HERNANDEZ, A.; KOTILA, J.; KUCUK, Y.; IAZZI, F.; JIVAN, H.; LANZALONE, G.; LAY, J. A.; LA FAUCI, L.; LA VIA, F.; LENSKE, H.; LINARES, R.; LUBIAN, J.; MA, J.; MARIN-LÁMBARRI, D.; MAS RUIZ, J.; MEDINA, N. H.; MENDES, D. R.; MEREU, P.; MORALLES, M.; NERI, L.; NEVELING, R.; OLIVEIRA, J. R. B.; PAKOU, A.; PANDOLA, L.; PELLEGRI, L.; PETRASCU, H.; PIETRALLA, N.; PINNA, F.; REITO, S.; RIES, P. C.; RUSSO, A. D.; RUSSO, G.; SANTOPINTO, E.; SANTOS, R. B. B.; SERBINA, L.; SGOUROS, O.; GUAZZELLI, Marcilei Aparecida; SOLAKCI, S. O.; SOULIOTIS, G.; SOUKERAS, V.; SPATAFORA, A.; TORRESI, D.; TUDISCO, S.; VARGAS HERNANDEZ, H.; VSEVOLODOVNA, R. I. M.; WANG, J.; WERNER, V.; YANG, Y.; YILDIRIN, A.; ZAGATTO, V. A. B.
    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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    Artigo
    Recent results on Heavy-Ion induced reactions of interest for 0νββ decay
    (2019-01-05) AGODI, C.; CAPPUZZELLO, F.; ACOSTA, L.; ALTANA, C.; AMADOR-VALENZULEA, P.; AUERBACH, N.; BAREA, J.; BELLONE, J. I.; BIJKER, R.; BONAMO, D.; BORELLOLEWIN, 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.; GARCIA, L. E. C.; LOMELI, E. R. CHÁVEZ; CIRALDO, I.; COLONNA, M.; D'AGOSTINHO, G.; DJAPO, H.; GERONIMO, G. DE; DELAUNAY, F.; LOS RIOS, K. DE; DESHMUKH, N.; FERRARESI, C.; FERREIRA, J. L.; FERRETTI, J.; FINOCCHIARO, P.; FIRAT, S.; FISICHELLA, M.; FOTI, A.; GALLO, G.; GARCIA-TECOCOATZI, H.; HACISALIHOGLU, A.; HUERTA-HERNANDES A.; KOTILA, J.; KUCUK, Y.; IAZZI, F.; LA FAUCI, L.; LANZALONE, G.; LA VIA, F.; LENSKE, H.; LINARES, R.; LO PRESTI, D.; LUBIAN, J.; MA, J.; MARÍN-LAMBARRI, D.; MAS RUIZ, J.; MEDINA, N. H; MENDES, D. R.; MEREU, P.; MORALLES, M.; NERI, L.; OLIVEIRA, J. R. B.; PAKOU, A.; PANDOLA, L.; PETRASCU, H.; PIETRALLA, N.; PINNA, F.; REITO, S.; RIES, S.; RODRIGUES, M. R. D.; RUSSO, A. D.; RUSSO, G.; SANTOPINTO, E.; SANTOS, R. B. B.; SERBINA, L.; SGOUROS, O.; GUAZZELLI, Marcilei Aparecida; SOLAKCI, S. O.; SOULIOTIS, G.; SOUKERAS, V.; SPATAFORA, A.; TORRESI, D.; TUDISCO, S.; VSEVOLODOVNA, R. I. M.; VARGAS-HERNANDEZ, H.; WANG, J. S.; WERNER, V.; YANG, Y. Y.; YILDIRIM, A.; ZAGATTO, H.
    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.