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244 results on '"D'Agata G"'

1. Determination of the 3He(α, γ)7Be and 6Li(p, γ)7Be astrophysical factors down to zero energy using the asymptotic normalization coefficients

Author

La Cognata M., Kiss G. G., Yarmukhamedov R., Tursunmakhatov K. I., Wiedenhöver I., Baby L. T., Cherubini S., Cvetinović A., D’Agata G., Figuera P., Guardo G.L., Gulino M., Hayakawa S., Indelicato I., Lamia L., Lattuada M., Mudò F., Palmerini S., Pizzone R.G., Rapisarda G.G., Romano S., Sergi M. L., Spartà R., Spitaleri C., Trippella O., Tumino A., Anastasiou M., Kuvin S. A., Rijal N., Schmidt B., Igamov S. B., Sakuta S. B., Fülöp Zs., Gyürky Gy., Szücs T., Halász Z., Somorjai E., Hons Z., Mrázek J., Tribble R. E., and Mukhamedzhanov A. M.

Subjects
Physics, QC1-999
Abstract

The p - p-chain reaction 3He(α, γ)7Be can sensitively influence the prediction of the 7Be and 8B neutrino fluxes. Despite its importance, the knowledge of its reaction cross section at energies of the core of the Sun (15 keV 30 keV) is limited and the accuracy far from the desired 3% level. In the present paper the indirect measurement of the external capture contribution using the asymptotic normalization coefficient (ANC) technique is reported. The angular distributions of deuterons emitted in the 6Li(3He,d)7Be α-transfer reactions were measured and the ANCs extracted from the scaling of distorted-wave Born approximation (DWBA) and coupled-channel (CC) calculations. Then, the astrophysical S-factor for the 3He(α, γ)7Be reaction was calculated assuming E1 direct capture and the zero energy value turned out to be 0.534 0.025 keVb. Both our experimental and theoretical approaches were benchmarked through the analysis of the 6Li(p,γ)7Be astrophysical factor, with interesting astrophysical applications to the understanding of the primordial lithium problem. In particular, the present work disfavors the occurrence of a claimed 200 keV resonance in the astrophysical factor.

Published
2023
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2. Study of the 12C +16 O fusion reaction in carbon burning via the Trojan Horse Method

Author

Oliva A. A., Tumino A., Soic N., Prajapati P. M., Acosta L., Alba R., Barba F., Cherubini S., D’Agata G., Dell’Aquila D., Di Pietro A., Fernandez J.P., Figuera P., Galaviz Redondo D., Guardo L., Gulino M., Hammache F., Jelavic Malenica D., Kiliç A.I., La Cognata M., La Commara M., Lamia L., Lattuada D., Maiolino C., Manicò G., Mazzocco M., Milin M., Nanru Ma, Nurmukhanbetova A., Nurkic D., Palmerini S., Parascandolo T., Pierroutsakou D., Pizzone R.G., Popocovski R., Rapisarda G.G., Romano S., Santonocito D., Sergi M.L., Shotter A., Spartà R., Spiridon A., Trache L., Vukman N., and Yamaguchi H.

Subjects
Physics, QC1-999
Abstract

12C +12 C is the main reaction during core and shell carbon burning in massive stars, however, at temperatures higher than 109K when most of the carbon is depleted and its abundance is lower than 16O, the 12C +16 O fusion can also become relevant. Moreover, 12C +16 O reaction can ignite also in the scenario of explosive carbon burning. The astrophysical energy region of interest thus ranges from 3 to 7.2 MeV in the center-of-mass frame. There are various measurements of the cross-section available in the literature, however, they all stop around 4 MeV, making extrapolation necessary at lower energies. To try to solve this uncertainty and corroborate direct measurement the Trojan Horse Method was applied to three-body processes 16O(14N, α24Mg)2H and 16O(14N, p27Al)2H to study the 16O(12C, α)24Mg and 16O(12C, p)27Al reactions.

Published
2023
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3. ANC experiments for nuclear astrophysics: The 26Si(p, γ)27P case

Author

D’Agata G., Kilic A. I., Burjan V., Mrázek J., Glagolev V., Kroha V., Cassisa A., Guardo G. L., La Cognata M., Lamia L., Palmerini S., Pizzone R. G., Rapisarda G. G., Romano S., Sergi M. L., Spartà R., Spitaleri C., and Tumino A.

Subjects
Physics, QC1-999
Abstract

The Asymptotic Normalization Coefficient (ANC) method has proven to be useful in retrieving the direct part of the radiative capture cross section for a number of reactions of astrophysical interest. In this work, the study of the 26Si(p, γ)27P reaction, studied via the ANC in its extension for mirror nuclei will be discussed.

Published
2023
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4. The 12C +16 O fusion reaction in carbon burning: Study at energies of astrophysical interest using the Trojan Horse Method

Author

Oliva A.A., Tumino A., Soic N., Prajapati M.P., Acosta L., Alba R., Barba F., Cherubini S., D’Agata G., Dell’Aquila D., Di Pietro A., Fernandez P.J., Figuera P., Galaviz Redondo D., Guardo L., Gulino M., Hammache F., Jelavic Malenica D., Kiliç A.I., La Cognata M., La Commara M., Lamia L., Lattuada D., Maiolino C., Manicò G., Mazzocco M., Milin M., Nanru Ma, Nurmukhanbetova A., Nurkic D., Palmerini S., Parascandolo T., Pierroutsakou D., Pizzone R.G., Popocovski R., Rapisarda G.G., Romano S., Santonocito D., Sergi M.L., Shotter A., Spartà R., Spiridon A., Trache L., Vukman N., and Yamaguchi H.

Subjects
Physics, QC1-999
Abstract

The carbon-burning process in massive stars mainly occurs via the 12C +12 C. However, at temperatures higher than 109K and considering the increased abundance of 16O produced during the later stages of the heliumburning,the 12C+16O fusion can also become relevant. Moreover, 12C+16O also plays a role in the scenario of explosive carbon burning. Thus, the astrophysical energy region of interest ranges from 3 to 7.2 MeV in the center-of-mass frame. However, the various measurements of the cross-section available in the literature stop around 4 MeV, making extrapolation necessary. To solve this uncertainty and corroborate direct measurement we applied the Trojan Horse Method to three-body processes 16O(14N, α24Mg)2H and 16O(14N, p27Al)2H to study the 12C(16O, α)24Mg and 12C(16O, p)27Al reactions in their entire energy region of astrophysical interest. In this contribution, after briefly describing the method used, the experiment and the preliminary phases of the data analysis will be presented and discussed.

Published
2023
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5. ANC method: Experimental approach and recent results

Author

D’Agata G., Kilic A.I., Burjan V., Cassisa A., Mrázek J., and Glagolev V.

Subjects
Physics, QC1-999
Abstract

The Asymptotic Normalization Coefficient (ANC) method, has proven to be useful in retrieving the direct part of the radiative capture cross section for a number of reactions of astrophysical interest. In this work, some of the latest results obtained by the AsFin2 group of the LSN-INFN (Catania) and the OJR of the NPI (Řež) will be briefly discussed.

Published
2023
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6. Study of the neutron induced reaction 17O(n,α)14C at astrophysical energies via the Trojan Horse Method

Author

Oliva A. A., Lamia L., Guardo G. L., Spitaleri C., Cherubini S., Cvetinovic A., D’Agata G., de Sereville N., Pietro A. Di, Figuera P., Gulino M, Hammache F, Hayakawa S., Indelicato I., Cognata M. La, Commara M. La, Lattuada D., Lattuada M., Manico G., Mazzocco M., Messina S., Palmerini S., Pizzone R.G., Pumo M.L., Rapisarda G.G., Romano S., Sergi M.L., Soic N., Spartà R., and Tumino A.

Subjects
Physics, QC1-999
Abstract

Neutron induced reactions are fundamental for the nucleosynthesis of elements in the universe. Indeed, to correctly study the reactions involved in the well-known s-process in stars, which produce about half of the elements beyond the iron peak, it is mandatory to know the neutron abundance available in those stars. The 17O(n, a)14C reaction is one of the so-called “neutron poisons” for the pro- cess and it could play an important role in the balance of the neutron abundance. The reaction is therefore investigated in the energy range of astrophysical inter- est between 0 and 350 keV in the center of mass by applying the Trojan Horse Method to the three body reaction 2H(17O, a14C)H.

Published
2020
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7. Study of 3He(n,p)3H reaction at cosmological energies with trojan horse method

Author

Spampinato C., Pizzone R.G., Spartà R., Couder M., Tan W., Burian V., Chae K.Y., D’Agata G., Guardo G.L., Indelicato I., Cognata M. La, Lamia L., Lattuada D., Mrazek J., Oliva A., Palmerini S., Prajapati P.M., Rapisarda G.G., Romano S., Sergi M.L., Spitaleri C., Tumino A., Wiescher M., Anguilar S., Bardyan D., Blankstein D., Boccioli L., Callahan L., Clark A., Frentz B., Hall M., Gula A., Henderson S., Kelmar R., Liu Q., Long J., Majumdar A., McGuinness S., Nelson A., O’Malley P., Seyymour C., Skulski M., and Wilkinson J.

Subjects
Physics, QC1-999
Abstract

In the network of reactions present in the Big Bang nucleosynthesis, the 3He(n, p)3H has an important role which impacts the final 7Li abundance. The Trojan Horse Method (THM) has been applied to the 3He(d, pt)H reaction in order to extract the astrophysical S(E)-factor of the 3He(n, p)3H in the Gamow energy range. The experiment will be described in the present work together with the first preliminary results.

Published
2020
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8. ANC experiments for nuclear astrophysics

Author

D’Agata G., Burjan V., Mrázek J., Glagolev V., Kilic A. I., Kroha V., La Cognata M., Lamia L., Palmerini S., Piskoř Š., Pizzone R. G., Rapisarda G. G., Romano S., Siváĉek I., Spitaleri C., Spartá R., and Tumino A.

Subjects
Physics, QC1-999
Abstract

Among the indirect methods to determine nuclear cross-section present in literature, the so-called Asymptotic Normalization Coefficient (ANC) has proven to be useful in retrieving the direct part of a radiative capture cross-section in reactions of interest for astrophysics. In this work, the method will be presented, and some results obtained in collaboration between NPI CAS and INFN-LNS will be presented.

Published
2020
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9. Preliminary results for the 19F(ρ,α)16O reaction cross section measured at INFN-LNS

Author

Petruse T, Guardo G. L., Cognata M. La, Lattuada D., Spitalieri C., Balabanski D. L., Agiksoz E., Acosta L., Capponi L., Carbone D., Cherubini S., Choudhury D., D’Agata G., Pietro A. Di, Figuera P., Gulino M., Kilik A. I., Commara M. La, Lamia L., Matei C., Palmerini S., Pizzone R. G., Romano S., Soderstrom P.-A., Sparta R., Tumino A., and Onses S. Vinales

Subjects
Physics, QC1-999
Abstract

The 19F(ρ,α)16O reaction is an important fluorine destruction chan- nel in the proton-rich outer layers of asymptotic giant branch (AGB) stars and it might also play a role in hydrogen-deficient post-AGB star nucleosynthesis. At present, theoretical models overproduce F abundances in AGB stars with re-spect to the observed values, thus calling for further investigation of the nuclear reaction rates involved in the production and destruction of fluorine. In the last years, new direct and indirect measurements improved significantly the knowl- edge of 19F(ρ,α)16O cross section at deeply sub-Coulomb energies (below 0.8 MeV). However, those data are larger by a factor of 1.4 with respect the previ- ous data reported in the NACRE compilation in the energy region 0.6-0.8 MeV. Using the Large High resolution Array of Silicons for Astrophysics (LHASA), we performed a new direct measurement of the 19F(ρ,α)16O. The goal of this experiment is to reduce the uncertainties in the nuclear reaction rate of the 19F(ρ,α)16O reaction. Here, experimental details, the calibration procedure and angular distributions are presented.

Published
2020
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10. Study of key resonances in the 30P(p,γ)31S reaction in classical novae

Author

Meyer A., de Séréville N., Hammache F., Adsley P., Assié M., Beaumel D., Delafosse C., Flavigny F., Georgiadou A., Gottardo A., Grassi L., Guillot J., Id Barkach T., MacCormick M., Matea I., Olivier L., Perrot L., Portail C., Stefan I., Parikh A., Coc A., Kiener J., Tatischeff V., Laird A. M., Fox S. P., Hubbard N., Riley J., De Oliveira F., Bastin B., Béroff K., Sánchez Benítez Á. M., Alellara A., Assunção M., Guimaraes V., Oulebsir N., and D’Agata G.

Subjects
Physics, QC1-999
Abstract

Among reactions with strong impact on classical novae model predictions, 30P(p,γ)31S is one of the few remained that are worthy to be measured accurately, because of their rate uncertainty, as like as 18F(p,α)15O and 25Al(pγ)26Si. To reduce the nuclear uncertainties associated to this reaction, we performed an experiment at ALTO facility of Orsay using the 31P(3He,t)31S reaction to populate 31S excited states of astrophysical interest and detect in coincidence the protons coming from the decay of the populated states in order to extract the proton branching ratios. After a presentation of the astrophysical context of this work, the current situation of the 30P(p,γ)31S reaction rate will be discussed. Then the experiment set-up of this work and the analysis of the single events will be presented.

Published
2018
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11. The α-decay of the Hoyle state in 12C: a new high-precision investigation

Author

Dell‘Aquila D., Lombardo I., Verde G., Vigilante M., Acosta L., Agodi C., Cappuzzello F., Carbone D., Cavallaro M., Cherubini S., Cvetinovic A., D‘Agata G., Francalanza L., Guardo G.L., Gulino M., Indelicato I., La Cognata M., Lamia L., Ordine A., Pizzone R.G., Puglia S.M.R., Rapisarda G.G., Romano S., Santagati G., Spartà R., Spadaccini G., Spitaleri C., and Tumino A.

Subjects
Physics, QC1-999
Abstract

The αdecay path of the Hoyle state in 12C (Ex = 7:654MeV) represents one ofthe most challenging questions of modern nuclear physics. Its knowledge can help in theunderstanding of cluster configurations in light nuclei and the possible existence of Bose-Einstein condensates in nuclei. In stars, it is involved in the so-called 3αprocess, wherethe 12C nucleosynthesis occurs. We studied the 14N(d; α2)12C(7:654) reaction at 10:5MeVincident energy to probe its direct decay component. We found, with a precision higherof a factor 5 than any other previous experiment, an almost total absence of direct decaysby-passing the ground state of 8Be. From our analysis, a new upper limit of such decayis found at 0:043% (95% C.L.). Astrophysical 3α process reaction rate calculations haveto be accordingly revised.

Published
2018
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12. The 19F(α, p)22Ne and 23Na(p,α)20Ne reaction in AGB nucleosynthesis via THM

Author

D’Agata G., Pizzone R. G., La Cognata M., Indelicato I., Spitaleri C., Burjan V., Cherubini S., Di Pietro A., Guardo G. L., Gulino M., La Commara M., Lamia L., Lattuada M., Mazzocco M., Mrazek J., Milin M., Palmerini S., Parascandolo C., Pierroutsakou D., Rapisarda G.G., Romano S., Sergi M.L., Soić N., Spartá R., Trippella O., and Tumino A.

Subjects
Physics, QC1-999
Abstract

In AGB environment, fluorine and sodium abundances are still matter of debate. About 19F (only stable isotope of fluorine), its abundance in the universe is strictly related to standard and extra-mixing processes taking place inside AGB-stars, that are considered to be the most important sites for its production. Nevertheless the way in which it is destroyed is far from being well understood. On the other hand, 23Na presence in Globular Clusters, along with is well-known anticorrelation with oxygen has made clear that this element must be produced in previous generations stars, and intermediatemass AGB stars are one of the possible candidates for its production. For this reason we studied the 19F(α,p)22Ne and 23Na(p,α)20Ne reactions in the energy range of relevance for astrophysics via the Trojan Horse Method (THM), using the three-body reactions 6Li(19F, p22Ne)d and 23Na(d, pn)20Ne.

Published
2018
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13. The Treiman-Yang Criterion: validating the Trojan Horse Method by experimentally probing the reaction mechanism

Author

Perrotta S. S., Spitaleri C., Cherubini S., Cvetinović A., D’Agata G., Dell’Aquila D., Di Pietro A., Figuera P., Guardo L., Gulino M., Indelicato I., Kres I., La Cognata M., La Commara M., Lamia L., Lattuada D., Lattuada M., Lombardo I., Mazzocco M., Parascandolo T., Pizzone R. G., Rapisarda G. G., Romano S., Spartà R., Trippella O., and Tumino A.

Subjects
Physics, QC1-999
Abstract

Proper selection of the quasi-free (QF) break-up channel in a three-body reaction is a key aspect for the applicability of the Trojan Horse Method (THM). The Treiman-Yang (TY) Criterion is a model-independent experimental test for the dominance of the QF mechanism, and hence constitutes one of the strongest validity tests of the THM. An experiment was performed at LNS to apply the test to the d(10B, 7Be α)n reaction. Here, the criterion is described and some preliminary data from the experiment are shown.

Published
2018
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14. 26Mg target for nuclear astrophysics measurements

Author

Siváček I., Mrázek J., Kroha V., Burjan V., Glagolev V., Piskoř Š., Spitaleri C., Pizzone R.G., La Cognata M., D’Agata G., Tumino A., Lamia L., Spartá R., Rapisard G.G., and Romano S.

Subjects
Physics, QC1-999
Abstract

Two nuclear reactions of astrophysical interest, 26Mg(3He,d)27Al and 26Mg(d,p)27Mg, were measured for extraction of the Asymptotic Normalization Coefficients. Investigation of the target composition is presented, as well as the effects that showed up during analysis of the in-beam data obtained on CANAM accelerators in the Nuclear Physics Institute of the Czech Academy of Sciences (NPI CAS).

Published
2018
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15. ANC experiments for nuclear astrophysics in NPI CAS

Author

Mrazek J., Burjan V., Kroha V., Mukhamedzhanov A.M., Tribble R., Spitaleri C., Siváček I., Glagolev V., Piskoř Š., Pizzone G.R., La Cognata M., D’Agata G., Tumino A., Lamia L., Sparta R., Rapisarda G., and Romano S.

Subjects
Physics, QC1-999
Abstract

Asymptotic Normalization Coefficients method is one of the indirect methods used in nuclear astrophysics. The method allows to deduce a direct part of a radiative capture cross section from the measurement of a two body reaction under specific conditions. The experimental works started in collaboration of NPI CAS, TAMU and INFN LNS from 90-ties and continue till the present. The introduction to this method is presented and experimental experiences from NPI CAS and the collaboration are shared.

Published
2018
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16. Nuclear Physics Mid Term Plan at LNGS

Author

Buompane, R., Cavanna, F., Curceanu, C., D’Onofrio, A., Di Leva, A., Formicola, A., Gialanella, L., Gustavino, C., Imbriani, G., Junker, M., Marcianò, A., Marzaioli, F., Nania, R., Napolitano, F., Piscicchia, K., Straniero, O., Abia, C., Aliotta, M., Bemmerer, D., Best, A., Boeltzig, A., Bruno, C., Caciolli, A., Chieffi, A., Ciani, G., D’Agata, G., deBoer, R. J., De Cesare, M., Dell’Aquila, D., Depalo, R., Dominguez, I., Ferraro, F., Garcia Duarte, J., Guglielmetti, A., Gyürky, Gy., Hayakawa, S., La Cognata, M., Lamia, L., Marcucci, L. E., Masha, E., Mazzocco, M., Morales-Gallegos, E. L., Palmerini, S., Passariello, I., Petraglia, A., Piatti, D., Pignatari, M., Pizzone, R. G., Porzio, G., Rapagnani, D., Rapisarda, G. G., Romano, S., Rubino, M., Santonastaso, C., Sergi, M. L., Skowronski, J., Spartà, R., Terrasi, F., Tumino, A., Turkat, S., Wiescher, M., and Zavatarelli, S.

Published
2024
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17. Nuclear reactions in AGB nucleosynthesis: the 19F(α, p)22Ne at energies of astrophysical relevance

Author

D’Agata G., Pizzone R. G., La Cognata M., Indelicato I., Spitaleri C., Blagus S., Cherubini S., Figuera P., Grassi L., Guardo G. L., Gulino M., Hayakawa S., Kshetri R., Lamia L., Lattuada M., Mijatović T., Milin M., Miljanić Ð., Prepolec L., Rapisarda G. G., Romano S., Sergi M. L., Soić N., Tokić V., Tumino A., and Uroić M.

Subjects
Physics, QC1-999
Abstract

The abundance of 19F in the universe is strictly related to standard and extra-mixing processes taking place inside AGB-stars, that are considered to be the most important sites for its production. Nevertheless the way in which it is destroyed is far from being well understood. For this reason we studied the 19F(α,p)22Ne reaction, that is supposed to be the main destruction channel in the Helium-rich part of the star. In this experiment, the reaction has been studied in the energy range of relevance for astrophysics (0÷1 MeV) via the Trojan Horse Method (THM), using the three-body reaction 6Li(19F,p22Ne)d.

Published
2017
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18. A new high-precision upper limit of direct α-decays from the Hoyle state in 12C

Author

Dell’Aquila D., Lombardo I., Verde G., Vigilante M., Acosta L., Agodi C., Cappuzzello F., Carbone D., Cavallaro M., Cherubini S., Cvetinovic A., D’Agata G., Francalanza L., Guardo G.L., Gulino M., Indelicato I., La Cognata M., Lamia L., Ordine A., Pizzone R.G., Puglia S.M.R., Rapisarda G.G., Romano S., Santagati G., Spartà R., Spadaccini G., Spitaleri C., and Tumino A.

Subjects
Physics, QC1-999
Abstract

The Hoyle state in 12C(Ex = 7.654MeV) is characterized by a pronounced 3α cluster configuration. It is involved in the so-called 3α process in stars, that is responsible of 12C nucleosynthesis. We studied the decay path of the Hoyle state by using the 14N(d, α2)12C(7.654) reaction at 10.5MeV incident energy. We found, with a precision higher of a factor 5 than any other previous experiment, an almost total absence of direct decays by-passing the ground state of 8Be. A new upper limit of such a decay width is placed at 0.043% (95% C.L.). Astrophysical 3α process reaction rate calculations have to be consequently revised.

Published
2017
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19. Narrow resonances in the continuum of the unbound nucleus $^{15}$F

Author

Girard-Alcindor, V., Mercenne, A., Stefan, I., Santos, F. de Oliveira, Michel, N., Płoszajczak, M., Assié, M., Lemasson, A., Clément, E., Flavigny, F., Matta, A., Ramos, D., Rejmund, M., Dudouet, J., Ackermann, D., Adsley, P., Assunção, M., Bastin, B., Beaumel, D., Benzoni, G., Borcea, R., Boston, A. J., Cáceres, L., Cederwall, B., Celikovic, I., Chudoba, V., Ciemala, M., Collado, J., Crespi, F. C. L., D'Agata, G., De France, G., Delaunay, F., Diget, C., Domingo-Pardo, C., Eberth, J., Fougères, C., Franchoo, S., Galtarossa, F., Georgiadou, A., Gibelin, J., Giraud, S., González, V., Goyal, N., Gottardo, A., Goupil, J., Grévy, S., Guimaraes, V., Hammache, F., Harkness-Brennan, L. J., Hess, H., Oliver, D. S. Judson, Kamalou, O., Kameneyero, A., Kiener, J., Korten, W., Koyama, S., Labiche, M., Lalanne, L., Lapoux, V., Leblond, S., Lefevre, A., Lenain, C., Leoni, S., Li, H., Lopez-Martens, A., Maj, A., Matea, I., Menegazzo, R., Mengoni, D., Meyer, A., Million, B., Monteagudo, B., Morfouace, P., Mrazek, J., Niikura, M., Piot, J., Podolyak, Zs., Portail, C., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rezynkina, K., Roger, T., Rojo, J. S., Rotaru, F., Salsac, M. D., Benítez, A. M. Sánchez, Sanchis, E., Şenyigit, M., de Séréville, N., Siciliano, M., Simpson, J., Sohler, D., Sorlin, O., Stanoiu, M., Stodel, C., Suzuki, D., Theisen, C., Thomas, J. C., Ujic, P., Valiente-Dobón, J. J., and Zielińska, M.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

The structure of the unbound $^{15}$F nucleus is investigated using the inverse kinematics resonant scattering of a radioactive $^{14}$O beam impinging on a CH$_2$ target. The analysis of $^{1}$H($^{14}$O,p)$^{14}$O and $^{1}$H($^{14}$O,2p)$^{13}$N reactions allowed the confirmation of the previously observed narrow $1/2^{-}$ resonance, near the two-proton decay threshold, and the identification of two new narrow 5/2$^{-}$ and 3/2$^{-}$ resonances. The newly observed levels decay by 1p emission to the ground of $^{14}$O, and by sequential 2p emission to the ground state (g.s.) of $^{13}$N via the $1^-$ resonance of $^{14}$O. Gamow shell model (GSM) analysis of the experimental data suggests that the wave functions of the 5/2$^{-}$ and 3/2$^{-}$ resonances may be collectivized by the continuum coupling to nearby 2p- and 1p- decay channels. The observed excitation function $^{1}$H($^{14}$O,p)$^{14}$O and resonance spectrum in $^{15}$F are well reproduced in the unified framework of the GSM., Comment: 7 pages, 4 figures

Published
2021

20. Nuclear physics midterm plan at LNS

Author

Agodi, C., Cappuzzello, F., Cardella, G., Cirrone, G. A. P., De Filippo, E., Di Pietro, A., Gargano, A., La Cognata, M., Mascali, D., Milluzzo, G., Nania, R., Petringa, G., Pidatella, A., Pirrone, S., Pizzone, R. G., Rapisarda, G. G., Sergi, M. L., Tudisco, S., Valiente-Dobón, J. J., Vardaci, E., Abramczyk, H., Acosta, L., Adsley, P., Amaducci, S., Banerjee, T., Batani, D., Bellone, J., Bertulani, C., Biri, S., Bogachev, A., Bonanno, A., Bonasera, A., Borcea, C., Borghesi, M., Bortolussi, S., Boscolo, D., Brischetto, G. A., Burrello, S., Busso, M., Calabrese, S., Calinescu, S., Calvo, D., Capirossi, V., Carbone, D., Cardinali, A., Casini, G., Catalano, R., Cavallaro, M., Ceccuzzi, S., Celona, L., Cherubini, S., Chieffi, A., Ciraldo, I., Ciullo, G., Colonna, M., Cosentino, L., Cuttone, G., D’Agata, G., De Gregorio, G., Degl’Innocenti, S., Delaunay, F., Di Donato, L., Di Nitto, A., Dickel, T., Doria, D., Ducret, J. E., Durante, M., Esposito, J., Farrokhi, F., Fernandez Garcia, J. P., Figuera, P., Fisichella, M., Fulop, Z., Galatá, A., Galaviz Redondo, D., Gambacurta, D., Gammino, S., Geraci, E., Gizzi, L., Gnoffo, B., Groppi, F., Guardo, G. L., Guarrera, M., Hayakawa, S., Horst, F., Hou, S. Q., Jarota, A., José, J., Kar, S., Karpov, A., Kierzkowska-Pawlak, H., Kiss, G. G., Knyazheva, G., Koivisto, H., Koop, B., Kozulin, E., Kumar, D., Kurmanova, A., La Rana, G., Labate, L., Lamia, L., Lanza, E. G., Lay, J. A., Lattuada, D., Lenske, H., Limongi, M., Lipoglavsek, M., Lombardo, I., Mairani, A., Manetti, S., Marafini, M., Marcucci, L., Margarone, D., Martorana, N. S., Maunoury, L., Mauro, G. S., Mazzaglia, M., Mein, S., Mengoni, A., Milin, M., Mishra, B., Mou, L., Mrazek, J., Nadtochy, P., Naselli, E., Nicolai, P., Novikov, K., Oliva, A. A., Pagano, A., Pagano, E. V., Palmerini, S., Papa, M., Parodi, K., Patera, V., Pellumaj, J., Petrone, C., Piantelli, S., Pierroutsakou, D., Pinna, F., Politi, G., Postuma, I., Prajapati, P., Prada Moroni, P. G., Pupillo, G., Raffestin, D., Racz, R., Reidel, C.-A., Rifuggiato, D., Risitano, F., Rizzo, F., Roca Maza, X., Romano, S., Roso, L., Rotaru, F., Russo, A. D., Russotto, P., Saiko, V., Santonocito, D., Santopinto, E., Sarri, G., Sartirana, D., Schuy, C., Sgouros, O., Simonucci, S., Sorbello, G., Soukeras, V., Spartá, R., Spatafora, A., Stanoiu, M., Taioli, S., Tessonnier, T., Thirolf, P., Tognelli, E., Torresi, D., Torrisi, G., Trache, L., Traini, G., Trimarchi, M., Tsikata, S., Tumino, A., Tyczkowski, J., Yamaguchi, H., Vercesi, V., Vidana, I., Volpe, L., and Weber, U.

Published
2023
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21. Probing nuclear forces beyond the nuclear drip line: The cases of $^{16}$F and $^{15}$F

Author

Girard-Alcindor, V., Stefan, I., Santos, F. de Oliveira, Sorlin, O., Ackermann, D., Adsley, P., Angelique, J. C., Assie, M., Assuncao, M., Beaumel, D., Berthoumieux, E., Borcea, R., Caceres, L., Celikovic, I., Ciemala, M., Chudoba, V., Agata, G. D, de Grancey, F., Dumitru, G., Flavigny, F., Fougeres, C., Franchoo, S., Georgiadou, A., Grevy, S., Guillot, J., Guimaraes, V., Hammache, F., Kamalou, O., Kiener, J., Koyama, S., Lalanne, L., Lapoux, V., Matea, I., Matta, A., Meyer, A., Morfouace, P., Mrazek, J., Negoita, F., Niikura, M., Pantelica, D., Perrot, L., Petrone, C., Piot, J., Portail, C., Roger, T., Rotaru, F., Benitez, A. M. Sanchez, de Sereville, N., Stanoiu, M., Stodel, C., Subotic, K., Suzuki, D., Tatischeff, V., Thomas, J. C., Ujic, P., and Verney, D.

Subjects
Nuclear Experiment
Abstract

The unbound proton-rich nuclei $^{16}$F and $^{15}$F are investigated experimentally and theoretically. Several experiments using the resonant elastic scattering method were performed at GANIL with radioactive beams to determine the properties of the low lying states of these nuclei. Strong asymmetry between $^{16}$F-$^{16}$N and $^{15}$F-$^{15}$C mirror nuclei is observed. The strength of the $nucleon-nucleon$ effective interaction involving the loosely bound proton in the $s_{1/2}$ orbit is significantly modified with respect to their mirror nuclei $^{16}$N and $^{15}$C. The reduction of the effective interaction is estimated by calculating the interaction energies with a schematic zero-range force. It is found that, after correcting for the effects due to changes in the radial distribution of the single-particle wave functions, the mirror symmetry of the $n-p$ interaction is preserved between $^{16}$F and $^{16}$N, while a difference of 63\% is measured between the $p-p$ versus $n-n$ interactions in the second excited state of $^{15}$F and $^{15}$C nuclei. Several explanations are proposed.

Published
2021
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22. Nuclear physics midterm plan at Legnaro National Laboratories (LNL)

Author

Ballan, M., Bottoni, S., Caamaño, M., Caciolli, A., Campostrini, M., Cicerchia, M., Crespi, F. C. L., Cristallo, S., Dell’Aquila, D., Depalo, R., Fioretto, E., Galtarossa, F., Gasques, L. R., Gottardo, A., Gramegna, F., Gulminelli, F., Kurtukian-Nieto, T., La Cognata, M., Lenzi, S. M., Marchi, T., Mazurek, K., Mengoni, D., Mou, L., Nania, R., Pupillo, G., Valiente-Dobón, J. J., Zanon, I., Acosta, L., Alvarez, M. A. G., Andrighetto, A., Arazi, A., Arzenton, A., Assié, M., Bagatin, M., Barbaro, F., Barbieri, C., Barlini, S., Basiricò, L., Battistoni, G., Beaumel, D., Bentley, M. A., Benzoni, G., Bertoldo, S., Bertulani, C., Bonasera, A., Camaiani, A., Canton, L., Capirossi, V., Carante, M. P., Carraro, C., Carturan, S. M., Casini, G., Cavanna, F., Centofante, L., Chávez, E. R., Chbihi, A., Ciemała, M., Cisternino, S., Colombi, A., Colucci, M., Compagnucci, A., Corradetti, S., Corradi, L., D’Agata, G., de Angelis, G., De Dominicis, L., De Salvador, D., DeFilippo, E., Del Fabbro, M., Di Nitto, A., Ditalia Tchernij, S., Donzella, A., Duguet, T., Esposito, J., Favela, F., Fernández-García, J. P., Flavigny, F., Fontana, A., Fornal, B., Forneris, J., Fraboni, B., Frankland, J., Gamba, E., Geraci, E., Gerardin, S., Giuliani, S. A., Gnoffo, B., Groppi, F., Gruyer, D., Haddad, F., Isaak, J., Kmiecik, M., Koning, A., Lamia, L., Le Neindre, N., Leoni, S., Lépine-Szily, A., Lilli, G., Lombardo, I., Loriggiola, M., Loriggiola, L., Lunardon, M., Maggioni, G., Maj, A., Manenti, S., Manzolaro, M., Marcucci, L. E., Marín-Lámbarri, D. J., Mariotti, E., Martin Hernandez, G., Massimi, C., Mastinu, P., Mazzocco, M., Mazzolari, A., Mijatović, T., Mishenina, T., Mizuyama, K., Monetti, A., Montagnoli, G., Morselli, L., Moschini, L., Musacchio Gonzalez, E., Nannini, A., Niu, Y. F., Ota, S., Paccagnella, A., Palmerini, S., Pellegri, L., Perego, A., Piantelli, S., Piatti, D., Picollo, F., Pignatari, M., Pinna, F., Pirrone, S., Pizzone, R. G., Polettini, M., Politi, G., Popescu, L., Prete, G., Quaranta, A., Raabe, R., Ramos, J. P., Raniero, W., Rapisarda, G. G., Recchia, F., Rigato, V., Roca Maza, X., Rocchini, M., Rodriguez, T., Roncolato, C., Rudolph, D., Russotto, P., Sánchez-Benítez, Á. M., Savran, D., Scarpa, D., Scheck, M., Sekizawa, K., Sergi, M. L., Sgarbossa, F., Silvestrin, L., Singh Khwairakpam, O., Skowronski, J., Somà, V., Spartà, R., Spieker, M., Stefanini, A. M., Steiger, H., Stevanato, L., Stock, M. R., Vardaci, E., Verney, D., Vescovi, D., Vittone, E., Werner, V., Wheldon, C., Wieland, O., Wimmer, K., Wyss, J., Zago, L., and Zenoni, A.

Published
2023
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23. Direct measurement of the 19α016cmF(p,19α016cm)19α016cmO reaction at E19α016cm = 0.4–0.9 MeV using the LHASA detector array

Author

Guardo, G. L., Petruse, T., Lattuada, D., La Cognata, M., Balabanski, D. L., Açıksöz, E., Acosta, L., Capponi, L., Carbone, D., Cherubini, S., Choudhury, D., D’Agata, G., Di Pietro, A., Figuera, P., Gulino, M., Kilik, A. I., La Commara, M., Lamia, L., Matei, C., Palmerini, S., Pizzone, R. G., Rapisarda, G. G., Romano, S., Sergi, M. L., Söderström, P.-A., Spartà, R., Tumino, A., and Viñals, S.

Published
2023
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25. High precision probe of the fully sequential decay width of the Hoyle state in $^{12}$C

Author

Dell'Aquila, D., Lombardo, I., Verde, G., Vigilante, M., Acosta, L., Agodi, C., Cappuzzello, F., Carbone, D., Cavallaro, M., Cherubini, S., Cvetinovic, A., D'Agata, G., Francalanza, L., Guardo, G. L., Gulino, M., Indelicato, I., La Cognata, M., Lamia, L., Ordine, A., Pizzone, R. G., Puglia, S. M. R., Rapisarda, G. G., Romano, S., Santagati, G., Spartà, R., Spadaccini, G., Spitaleri, C., and Tumino, A.

Subjects
Nuclear Experiment
Abstract

The decay path of the Hoyle state in $^{12}$C ($E_x=7.654\textrm{MeV}$) has been studied with the $^{14}\textrm{N}(\textrm{d},\alpha_2)^{12}\textrm{C}(7.654)$ reaction induced at $10.5\textrm{MeV}$. High resolution invariant mass spectroscopy techniques have allowed to unambiguously disentangle direct and sequential decays of the state passing through the ground state of $^{8}$Be. Thanks to the almost total absence of background and the attained resolution, a fully sequential decay contribution to the width of the state has been observed. The direct decay width is negligible, with an upper limit of $0.043\%$ ($95\%$ C.L.). The precision of this result is about a factor $5$ higher than previous studies. This has significant implications on nuclear structure, as it provides constraints to $3$-$\alpha$ cluster model calculations, where higher precision limits are needed.

Published
2017
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26. Experimental Study of the Reaction in Classical Novae

Author

Meyer, A., de Séréville, N., Hammache, F., Adsley, P., Parikh, A., Assié, M., Assunção, M., Bastin, B., Beaumel, D., Béroff, K., Coc, Alain, D’Agata, G., Delafosse, C., De Oliveira, F., Flavigny, F., Fox, S. P., Georgiadou, A., Gottardo, A., Grassi, L., Guillot, J., Guimaräes, V., Hubbard, N., Id Barkach, T., Kiener, J., Laird, A. M., Lara, A. L., MacCormick, M., Matea, I., Olivier, L., Oulebsir, N., Perrot, L., Portail, C., Riley, J., Benítez, Á. M. Sánchez, Stefan, I., Tatischeff, V., Formicola, Alba, editor, Junker, Matthias, editor, Gialanella, Lucio, editor, and Imbriani, Gianluca, editor

Published
2019
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27. The Ne Reactions at Energies of Astrophysical Interest via the Trojan Horse Method

Author

D’Agata, G., Pizzone, Rosario Gianluca, Indelicato, I., La Cognata, M., Spitaleri, C., Burjan, V., Cherubini, S., Di Pietro, A., Figuera, P., Guardo, G. L., Gulino, M., La Commara, M., Lamia, L., Lattuada, M., Mazzocco, M., Mrazek, J., Milin, M., Palmerini, Sara, Parascandolo, C., Pierroutsakou, D., Rapisarda, G. G., Romano, S., Sergi, M. L., Soic̀, N., Spartá, R., Trippella, O., Tumino, Aurora, Formicola, Alba, editor, Junker, Matthias, editor, Gialanella, Lucio, editor, and Imbriani, Gianluca, editor

Published
2019
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28. The 27Al(p,α)24Mg2H(27Al,α24Mg)n reaction at astrophysical energies studied by means of the Trojan Horse Method applied to the 27Al(p,α)24Mg2H(27Al,α24Mg)n reaction

Author

Palmerini, S., La Cognata, M., Hammache, F., Acosta, L., Alba, R., Burjan, V., Chávez, E., Cherubini, S., Cvetinović, A., D’Agata, G., de Séréville, N., Di Pietro, A., Figuera, P., Fülöp, Z., Gaitán De Los Rios, K., Guardo, G. L., Gulino, M., Hayakawa, S., Kiss, G. G., La Commara, M., Lamia, L., Maiolino, C., Manicó, G., Matei, C., Mazzocco, M., Mrazek, J., Parascandolo, T., Petruse, T., Pierroutsakou, D., Pizzone, R. G., Rapisarda, G. G., Romano, S., Santonocito, D., Sergi, M. L., Spartà, R., Tumino, A., and Yamaguchi, H.

Published
2021
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30. The 35→ααHe+35→ααHe35→αα35→αα+35→αα reaction below the Coulomb barrier via the Trojan Horse Method

Author

Spitaleri, C., Typel, S., Bertulani, C. A., Mukhamedzhanov, A. M., Kajino, T., Lattuada, M., Cvetinović, A., Messina, S., Guardo, G. L., Soić, N., Milin, M., Perrotta, S. S., Li, Chengbo, Čolović, P., D’Agata, G., Dell’Aquila, D., Fatuzzo, C. G., Gulino, M., Hou, S. Q., Cognata, M. La, Lattuada, D., Nurkić, D., Popočovski, R., Skukan, N., Szilner, S., Trippella, O., Uroić, M., and Vukman, N.

Published
2021
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31. Protective Effects of PACAP in Peripheral Organs

Author

Denes Toth, Edina Szabo, Andrea Tamas, Tamas Juhasz, Gabriella Horvath, Eszter Fabian, Balazs Opper, Dora Szabo, Grazia Maugeri, Agata G. D'Amico, Velia D'Agata, Viktoria Vicena, and Dora Reglodi

Subjects
PACAP, cytoprotection, periphery, apoptosis, ischemia, Diseases of the endocrine glands. Clinical endocrinology, RC648-665
Abstract

Pituitary adenylate cyclase activating polypeptide (PACAP) is a neuropeptide widely distributed in the nervous system, where it exerts strong neuroprotective effects. PACAP is also expressed in peripheral organs but its peripheral protective effects have not been summarized so far. Therefore, the aim of the present paper is to review the existing literature regarding the cytoprotective effects of PACAP in non-neuronal cell types, peripheral tissues, and organs. Among others, PACAP has widespread expression in the digestive system, where it shows protective effects in various intestinal pathologies, such as duodenal ulcer, small bowel ischemia, and intestinal inflammation. PACAP is present in both the exocrine and endocrine pancreas as well as liver where it reduces inflammation and steatosis by interfering with hepatic pathology related to obesity. It is found in several exocrine glands and also in urinary organs, where, with its protective effects being mainly published regarding renal pathologies, PACAP is protective in numerous conditions. PACAP displays anti-inflammatory effects in upper and lower airways of the respiratory system. In the skin, it is involved in the development of inflammatory pathology such as psoriasis and also has anti-allergic effects in a model of contact dermatitis. In the non-neuronal part of the visual system, PACAP showed protective effects in pathological conditions of the cornea and retinal pigment epithelial cells. The positive role of PACAP has been demonstrated on the formation and healing processes of cartilage and bone where it also prevents osteoarthritis and rheumatoid arthritis development. The protective role of PACAP was also demonstrated in the cardiovascular system in different pathological processes including hyperglycaemia-induced endothelial dysfunction and age-related vascular changes. In the heart, PACAP protects against ischemia, oxidative stress, and cardiomyopathies. PACAP is also involved in the protection against the development of pre-senile systemic amyloidosis, which is presented in various peripheral organs in PACAP-deficient mice. The studies summarized here provide strong evidence for the cytoprotective effects of the peptide. The survival-promoting effects of PACAP depend on a number of factors which are also shortly discussed in the present review.

Published
2020
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32. Indirect measurement of the 3He3H(n,p)3He3H reaction cross section at Big Bang energies

Author

Pizzone, R. G., Spampinato, C., Spartá, R., Couder, M., Tan, W., Burjan, V., D’Agata, G., Guardo, G. L., La Cognata, M., Lamia, L., Mrazek, J., Palmerini, S., Typel, S., Tumino, A., Wiescher, M., Anguilar, S., Bardayan, D., Blankstein, D., Boccioli, L., Callahan, L., Cha, S. M., Chae, K. Y., Clark, A. M., Frentz, B., Hall, M. R., Gula, A., Henderson, S., Kelmar, R., Kwag, M. S., Indelicato, I., La Commara, M., Lattuada, D., Liu, Q., Long, J., Mazzocco, M., Majumdar, A., McGuinness, S., Nelson, A., Oliva, A. A., O’Malley, P., Prajapati, P. M., Rapisarda, G. G., Romano, S., Sergi, M. L., Seymour, C., Skulski, M., Spitaleri, C., and Wilkinson, J.

Published
2020
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33. Study of the quasi-free 3He+9Be→3α reaction for the Trojan Horse Method

Author

Spitaleri, C., Lattuada, M., Cvetinović, A., Soić, N., Milin, M., Čolović, P., D’Agata, G., Dell’Aquila, D., Guardo, G. L., Gulino, M., Trippella, O., La Cognata, M., Lamia, L., Lattuada, D., Li, Chengbo, Messina, S., Nurkić, D., Perrotta, S. S., Pizzone, R. G., Popočonski, R., Romano, S., Skukan, N., Spartá, R., Szilner, S., Uroić, M., and Vukman, N.

Published
2020
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34. The $$^{19}\mathrm{F}( \alpha ,\mathrm{p})^{22}$$ Ne and $$^{23}\mathrm{Na}(\mathrm{p},\alpha )^{20}$$ Ne Reactions at Energies of Astrophysical Interest via the Trojan Horse Method

Author

D’Agata, G., primary, Pizzone, Rosario Gianluca, additional, Indelicato, I., additional, La Cognata, M., additional, Spitaleri, C., additional, Burjan, V., additional, Cherubini, S., additional, Di Pietro, A., additional, Figuera, P., additional, Guardo, G. L., additional, Gulino, M., additional, La Commara, M., additional, Lamia, L., additional, Lattuada, M., additional, Mazzocco, M., additional, Mrazek, J., additional, Milin, M., additional, Palmerini, Sara, additional, Parascandolo, C., additional, Pierroutsakou, D., additional, Rapisarda, G. G., additional, Romano, S., additional, Sergi, M. L., additional, Soic̀, N., additional, Spartá, R., additional, Trippella, O., additional, and Tumino, Aurora, additional

Published
2019
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35. Experimental Study of the $${^{30}}{\text {P}({\text {p}}}{,}{\upgamma })^{31}\text {S}$$ Reaction in Classical Novae

Author

Meyer, A., primary, de Séréville, N., additional, Hammache, F., additional, Adsley, P., additional, Parikh, A., additional, Assié, M., additional, Assunção, M., additional, Bastin, B., additional, Beaumel, D., additional, Béroff, K., additional, Coc, Alain, additional, D’Agata, G., additional, Delafosse, C., additional, De Oliveira, F., additional, Flavigny, F., additional, Fox, S. P., additional, Georgiadou, A., additional, Gottardo, A., additional, Grassi, L., additional, Guillot, J., additional, Guimaräes, V., additional, Hubbard, N., additional, Id Barkach, T., additional, Kiener, J., additional, Laird, A. M., additional, Lara, A. L., additional, MacCormick, M., additional, Matea, I., additional, Olivier, L., additional, Oulebsir, N., additional, Perrot, L., additional, Portail, C., additional, Riley, J., additional, Benítez, Á. M. Sánchez, additional, Stefan, I., additional, and Tatischeff, V., additional

Published
2019
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38. Study of the 12C + 16O fusion via the Trojan Horse Method

Author

Oliva, A. A., Tumino, A., Soic, N., Prajapati, P. M., Acosta, L., Alba, R., Barba, F., Cherubini, S., D'Agata, G., Dell'Aquila, D., Di Pietro, A., Fernandez, J. P., Figuera, P., Redondo, D. G., Guardo, L., Gulino, M., Hammache, F., Malenica, D. J., Kilic, A. I., La Cognata, M., La Commara, M., Lamia, L., Lattuada, D., Maiolino, C., Manico, G., Mazzocco, M., Milin, M., Nanru, M., Nurmukhanbetova, A., Nurkic, D., Palmerini, S., Parascandolo, T., Pierroutsakou, D., Pizzone, R. G., Popocovski, R., Rapisarda, G. G., Romano, S., Santonocito, D., Sergi, M. L., Shotter, A., Sparta, R., Spiridon, A., Trache, L., Vukan, N., Yamaguchi, H., Oliva, A. A., Tumino, A., Soic, N., Prajapati, P. M., Acosta, L., Alba, R., Barba, F., Cherubini, S., D'Agata, G., Dell'Aquila, D., Di Pietro, A., Fernandez, J. P., Figuera, P., Redondo, D. G., Guardo, L., Gulino, M., Hammache, F., Malenica, D. J., Kilic, A. I., La Cognata, M., La Commara, M., Lamia, L., Lattuada, D., Maiolino, C., Manico, G., Mazzocco, M., Milin, M., Nanru, M., Nurmukhanbetova, A., Nurkic, D., Palmerini, S., Parascandolo, T., Pierroutsakou, D., Pizzone, R. G., Popocovski, R., Rapisarda, G. G., Romano, S., Santonocito, D., Sergi, M. L., Shotter, A., Sparta, R., Spiridon, A., Trache, L., Vukan, N., and Yamaguchi, H.

Abstract

The 12C + 16O fusion reaction plays a role in the later stages of carbon burning, influencing the evolution of both massive stars and Type Ia Supernovae: when most of the carbon is depleted, by the main fusion reaction 12C + 12C, the abundance of 16O nuclei is significantly higher. Therefore 12C + 16O can indeed have a strong impact on the process. In this brief contribution, preliminary data analysis results of a new indirect measurement of the 12C + 16O, performed at astrophysical energies via the Trojan Horse Method, will be presented and discussed.

Published
2022

39. ANC experiments for nuclear astrophysics: The 26Si(p, γ)27P case.

Author

D'Agata, G., Kilic, A. I., Burjan, V., Mrázek, J., Glagolev, V., Kroha, V., Cassisa, A., Guardo, G. L., La Cognata, M., Lamia, L., Palmerini, S., Pizzone, R. G., Rapisarda, G. G., Romano, S., Sergi, M. L., Spartà, R., Spitaleri, C., and Tumino, A.

Subjects
*NUCLEAR astrophysics, *NUCLEAR reactions, *NUCLEOSYNTHESIS, *NUCLEAR physics, *RADIATIVE capture
Abstract

The Asymptotic Normalization Coefficient (ANC) method has proven to be useful in retrieving the direct part of the radiative capture cross section for a number of reactions of astrophysical interest. In this work, the study of the 26Si(p, γ)27P reaction, studied via the ANC in its extension for mirror nuclei will be discussed. [ABSTRACT FROM AUTHOR]

Published
2023
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40. Study of the 12C +16 O fusion reaction in carbon burning via the Trojan Horse Method.

Author

Oliva, A. A., Tumino, A., Soic, N., Prajapati, P. M., Acosta, L., Alba, R., Barba, F., Cherubini, S., D'Agata, G., Dell'Aquila, D., Di Pietro, A., Fernandez, J.P., Figuera, P., Galaviz Redondo, D., Guardo, L., Gulino, M., Hammache, F., Jelavic Malenica, D., Kiliç, A.I., and La Cognata, M.

Subjects
NUCLEAR fusion, CARBON, NEUTRON capture, ASTROPHYSICS, NUCLEOSYNTHESIS
Abstract

12C +12 C is the main reaction during core and shell carbon burning in massive stars, however, at temperatures higher than 109K when most of the carbon is depleted and its abundance is lower than 16O, the 12C +16 O fusion can also become relevant. Moreover, 12C +16 O reaction can ignite also in the scenario of explosive carbon burning. The astrophysical energy region of interest thus ranges from 3 to 7.2 MeV in the center-of-mass frame. There are various measurements of the cross-section available in the literature, however, they all stop around 4 MeV, making extrapolation necessary at lower energies. To try to solve this uncertainty and corroborate direct measurement the Trojan Horse Method was applied to three-body processes 16O(14N, α24Mg)2H and 16O(14N, p27Al)2H to study the 16O(12C, α)24Mg and 16O(12C, p)27Al reactions. [ABSTRACT FROM AUTHOR]

Published
2023
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41. Determination of the 3He(α, γ)7Be and 6Li(p, γ)7Be astrophysical factors down to zero energy using the asymptotic normalization coefficients.

Author

La Cognata, M., Kiss, G. G., Yarmukhamedov, R., Tursunmakhatov, K. I., Wiedenhöver, I., Baby, L. T., Cherubini, S., Cvetinović, A., D'Agata, G., Figuera, P., Guardo, G.L., Gulino, M., Hayakawa, S., Indelicato, I., Lamia, L., Lattuada, M., Mudò, F., Palmerini, S., Pizzone, R.G., and Rapisarda, G.G.

Subjects
ASTROPHYSICS, NUCLEAR astrophysics, NUCLEAR physics, NUCLEOSYNTHESIS, NEUTRINO astrophysics
Abstract

The p - p-chain reaction 3He(α, γ)7Be can sensitively influence the prediction of the 7Be and 8B neutrino fluxes. Despite its importance, the knowledge of its reaction cross section at energies of the core of the Sun (15 keV 30 keV) is limited and the accuracy far from the desired 3% level. In the present paper the indirect measurement of the external capture contribution using the asymptotic normalization coefficient (ANC) technique is reported. The angular distributions of deuterons emitted in the 6Li(3He,d)7Be α-transfer reactions were measured and the ANCs extracted from the scaling of distorted-wave Born approximation (DWBA) and coupled-channel (CC) calculations. Then, the astrophysical S-factor for the 3He(α, γ)7Be reaction was calculated assuming E1 direct capture and the zero energy value turned out to be 0.534 0.025 keVb. Both our experimental and theoretical approaches were benchmarked through the analysis of the 6Li(p,γ)7Be astrophysical factor, with interesting astrophysical applications to the understanding of the primordial lithium problem. In particular, the present work disfavors the occurrence of a claimed 200 keV resonance in the astrophysical factor. [ABSTRACT FROM AUTHOR]

Published
2023
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42. ANC method: Experimental approach and recent results.

Author

D'Agata, G., Kilic, A.I., Burjan, V., Cassisa, A., Mrázek, J., and Glagolev, V.

Subjects
*RADIATIVE capture, *ASTROPHYSICS, *DWBA (Nuclear physics), *ELASTIC scattering, *ANGULAR distribution (Nuclear physics)
Abstract

The Asymptotic Normalization Coefficient (ANC) method, has proven to be useful in retrieving the direct part of the radiative capture cross section for a number of reactions of astrophysical interest. In this work, some of the latest results obtained by the AsFin2 group of the LSN-INFN (Catania) and the OJR of the NPI (Řež) will be briefly discussed. [ABSTRACT FROM AUTHOR]

Published
2023
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43. The 12C +16 O fusion reaction in carbon burning: Study at energies of astrophysical interest using the Trojan Horse Method.

Author

Oliva, A.A., Tumino, A., Soic, N., Prajapati, M.P., Acosta, L., Alba, R., Barba, F., Cherubini, S., D'Agata, G., Dell'Aquila, D., Di Pietro, A., Fernandez, P.J., Figuera, P., Galaviz Redondo, D., Guardo, L., Gulino, M., Hammache, F., Jelavic Malenica, D., Kiliç, A.I., and La Cognata, M.

Subjects
COULOMB barriers (Nuclear fusion), CENTER of mass, NUCLEOSYNTHESIS, MOMENTUM transfer, POSITION sensitive particle detectors
Abstract

The carbon-burning process in massive stars mainly occurs via the 12C +12 C. However, at temperatures higher than 109K and considering the increased abundance of 16O produced during the later stages of the heliumburning,the 12C+16O fusion can also become relevant. Moreover, 12C+16O also plays a role in the scenario of explosive carbon burning. Thus, the astrophysical energy region of interest ranges from 3 to 7.2 MeV in the center-of-mass frame. However, the various measurements of the cross-section available in the literature stop around 4 MeV, making extrapolation necessary. To solve this uncertainty and corroborate direct measurement we applied the Trojan Horse Method to three-body processes 16O(14N, α24Mg)2H and 16O(14N, p27Al)2H to study the 12C(16O, α)24Mg and 12C(16O, p)27Al reactions in their entire energy region of astrophysical interest. In this contribution, after briefly describing the method used, the experiment and the preliminary phases of the data analysis will be presented and discussed. [ABSTRACT FROM AUTHOR]

Published
2023
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44. Neutron-Driven Nucleosynthesis in Stellar Plasma

Author

Spartà, R., primary, La Cognata, M., additional, Guardo, G. L., additional, Palmerini, S., additional, Sergi, M. L., additional, D’Agata, G., additional, Lamia, L., additional, Lattuada, D., additional, Oliva, A. A., additional, Pizzone, R. G., additional, Rapisarda, G. G., additional, Romano, S., additional, and Tumino, A., additional

Published
2022
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45. New narrow resonances observed in the unbound nucleus F15

Author

Girard-Alcindor, V., primary, Mercenne, A., additional, Stefan, I., additional, de Oliveira Santos, F., additional, Michel, N., additional, Płoszajczak, M., additional, Assié, M., additional, Lemasson, A., additional, Clément, E., additional, Flavigny, F., additional, Matta, A., additional, Ramos, D., additional, Rejmund, M., additional, Dudouet, J., additional, Ackermann, D., additional, Adsley, P., additional, Assunção, M., additional, Bastin, B., additional, Beaumel, D., additional, Benzoni, G., additional, Borcea, R., additional, Boston, A. J., additional, Brugnara, D., additional, Cáceres, L., additional, Cederwall, B., additional, Celikovic, I., additional, Chudoba, V., additional, Ciemala, M., additional, Collado, J., additional, Crespi, F. C. L., additional, D'Agata, G., additional, De France, G., additional, Delaunay, F., additional, Diget, C., additional, Domingo-Pardo, C., additional, Eberth, J., additional, Fougères, C., additional, Franchoo, S., additional, Galtarossa, F., additional, Georgiadou, A., additional, Gibelin, J., additional, Giraud, S., additional, González, V., additional, Goyal, N., additional, Gottardo, A., additional, Goupil, J., additional, Grévy, S., additional, Guimaraes, V., additional, Hammache, F., additional, Harkness-Brennan, L. J., additional, Hess, H., additional, Jovančević, N., additional, Judson Oliver, D. S., additional, Kamalou, O., additional, Kamenyero, A., additional, Kiener, J., additional, Korten, W., additional, Koyama, S., additional, Labiche, M., additional, Lalanne, L., additional, Lapoux, V., additional, Leblond, S., additional, Lefevre, A., additional, Lenain, C., additional, Leoni, S., additional, Li, H., additional, Lopez-Martens, A., additional, Maj, A., additional, Matea, I., additional, Menegazzo, R., additional, Mengoni, D., additional, Meyer, A., additional, Million, B., additional, Monteagudo, B., additional, Morfouace, P., additional, Mrazek, J., additional, Niikura, M., additional, Piot, J., additional, Podolyak, Zs., additional, Portail, C., additional, Pullia, A., additional, Quintana, B., additional, Recchia, F., additional, Reiter, P., additional, Rezynkina, K., additional, Roger, T., additional, Rojo, J. S., additional, Rotaru, F., additional, Salsac, M. D., additional, Sánchez Benítez, A. M., additional, Sanchis, E., additional, Şenyigit, M., additional, de Séréville, N., additional, Siciliano, M., additional, Simpson, J., additional, Sohler, D., additional, Sorlin, O., additional, Stanoiu, M., additional, Stodel, C., additional, Suzuki, D., additional, Theisen, C., additional, Thisse, D., additional, C.Thomas, J., additional, Ujic, P., additional, Valiente-Dobón, J. J., additional, and Zielińska, M., additional

Published
2022
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46. Representing Absence: Contemporary Ekphrasis in 'Apesh-t'

Author

Agata G. Handley and University of Lodz

Subjects
Cultural Studies, Space (punctuation), Painting, Literature and Literary Theory, Poetry, music video, media_common.quotation_subject, lcsh:Literature (General), Jay-Z, Representation (arts), Art, lcsh:PN1-6790, Visual arts, ekphrasis, Politics, Portrait, Beyoncé, jay-z, beyoncé, Order (virtue), Theme (narrative), media_common
Abstract

Traditionally, ekphrasis has been defined as the description and analysis of works of art in poetry, and so it has been understood as the verbalization of visual images (Sager Eidt). The article examines the concept in the light of contemporary definitions that include non-verbal media as targets (Cariboni Killander, Lutas and Strukelj; Sager Eidt; Bruhn; Pethö) in order to analyze its applicability to music videos. It concentrates in particular on “Apesh-t,” a video for a track by Beyoncé and Jay-Z from the album Everything Is Love (2018). The video is filmed in different interiors of the Louvre, where the singers appear, together with an ensemble of dancers, in front of selected artworks. The discussion focuses on an analysis of a single shot which presents an ekphrastic re-configuration of one particular work of European art, Jacques-Louis David’s Portrait of Madame Récamier (1800). The author argues that the use of ekphrasis in the video—through elaboration (close-ups and editing) and repurposing of the source material (painting)—plays an important role in the construction of the theme of “absence”: invoking not only what is represented, but what is not represented in David’s painting. It also foregrounds the potential of ekphrasis as a tool of political and cultural resistance, in the way it intervenes in the representation of the “other” in art and in the museum space.

Published
2020

47. Trojan Horse Method for n-induced reaction investigations at astrophysical energies

Author

Sergi, M. L., Lamia, L., Rapisarda, G. G., Mazzocco, M., Cherubini, S., D Agata, G., Di Pietro, A., Fernandez-Garcia, J. P., Figuera, P., Fisichella, M., Guardo, G. L., Gulino, M., Hayakawa, S., La Cognata, M., Lattuada, M., Alessandro Alberto Oliva, Palmerini, S., Pizzone, R. G., Puglia, S. M. R., Romano, S., Spartà, R., Spitaleri, C., Torresi, D., and Tumino, A.

Published
2022

48. New narrow resonances observed in the unbound nucleus 15 F

Author

Girard-Alcindor, V., Mercenne, A., Stefan, I., de Oliveira Santos, F., Michel, N., Płoszajczak, M., Assié, M., Lemasson, A., Clément, E., Flavigny, F., Matta, A., Ramos, Diego, Rejmund, M., Dudouet, J., Ackermann, D., Adsley, P., Assunção, M., Bastin, Beyhan, Beaumel, D., Benzoni, G., Borcea, R., Boston, A. J., Brugnara, D., Cáceres, L., Cederwall, B., Čeliković, Igor T., Chudoba, V., Ciemala, M., Collado, J., Crespi, F. C. L., D'Agata, G., De France, G., Delaunay, F., Diget, C., Domingo-Pardo, C., Eberth, J., Fougères, C., Franchoo, S., Galtarossa, F., Georgiadou, A., Gibelin, J., Giraud, S., González, V., Goyal, N., Gottardo, A., Goupil, J., Grévy, S., Guimaraes, V., Hammache, F., Harkness-Brennan, L. J., Hess, H., Jovančević, N., Judson Oliver, D. S., Kamalou, O., Kamenyero, A., Kiener, J., Korten, W., Koyama, S., Labiche, M., Lalanne, L., Lapoux, V., Leblond, S., Lefevre, A., Lenain, C., Leoni, S., Li, H., Lopez-Martens, A., Maj, A., Matea, I., Menegazzo, R., Mengoni, D., Meyer, A., Million, B., Monteagudo, B., Morfouace, P., Mrazek, J., Niikura, M., Piot, J., Podolyak, Zs., Portail, C., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rezynkina, K., Roger, T., Rojo, J. S., Rotaru, Florin, Salsac, M. D., Sánchez Benítez, A. M., Sanchis, E., Şenyigit, M., de Séréville, N., Siciliano, M., Simpson, J., Sohler, D., Sorlin, O., Stanoiu, Mihai, Stodel, C., Suzuki, D., Theisen, C., Thisse, D., C.Thomas, J., Ujic, P., Valiente-Dobón, J. J., and Zielińska, M.

Abstract

The structure of the unbound 15F nucleus is investigated using the inverse kinematics resonant scattering of a radioactive 14O beam impinging on a CH2 target. The analysis of 1H(14O,p)14O and 1H(14O,2p)13N reactions allowed the confirmation of the previously observed narrow 1/2− resonance, near the two-proton decay threshold, and the identification of two new narrow 5/2− and 3/2− resonances. The newly observed levels decay by 1p emission to the ground of 14O, and by sequential 2p emission to the ground state of 13N via the 1− resonance of 14O. Gamow shell model (GSM) analysis of the experimental data suggests that the wave functions of the 5/2− and 3/2− resonances may be collectivized by the continuum coupling to nearby 2p- and 1p-decay channels. The observed excitation function 1H(14O,p)14O and resonance spectrum in 15F are well reproduced in the unified framework of the GSM.

Published
2022

49. New narrow resonances observed in the unbound nucleus F 15

Author

Girard-Alcindor, V., Mercenne, A., Stefan, I., De Oliveira Santos, F., Michel, N., Ploszajczak, M., Assie, M., Lemasson, A., Clement, E., Flavigny, F., Matta, A., Ramos, D., Rejmund, M., Dudouet, J., Ackermann, D., Adsley, P., Assuncao, M., Bastin, B., Beaumel, D., Benzoni, G., Borcea, R., Boston, A. J., Brugnara, D., Caceres, L., Cederwall, B., Celikovic, I., Chudoba, V., Ciemala, M., Collado, J., Crespi, F. C. L., D'Agata, G., De France, G., Delaunay, F., Diget, C., Domingo-Pardo, C., Eberth, J., Fougeres, C., Franchoo, S., Galtarossa, F., Georgiadou, A., Gibelin, J., Giraud, S., Gonzalez, V., Goyal, N., Gottardo, A., Goupil, J., Grevy, S., Guimaraes, V., Hammache, F., Harkness-Brennan, L. J., Hess, H., Jovancevic, N., Judson Oliver, D. S., Kamalou, O., Kamenyero, A., Kiener, J., Korten, W., Koyama, S., Labiche, M., Lalanne, L., Lapoux, V., Leblond, S., Lefevre, A., Lenain, C., Leoni, S., Li, H., Lopez-Martens, A., Maj, A., Matea, I., Menegazzo, R., Mengoni, D., Meyer, A., Million, B., Monteagudo, B., Morfouace, P., Mrazek, J., Niikura, M., Piot, J., Podolyak, Z., Portail, C., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rezynkina, K., Roger, T., Rojo, J. S., Rotaru, F., Salsac, M. D., Sanchez Benitez, A. M., Sanchis, E., Senyigit, M., De Sereville, N., Siciliano, M., Simpson, J., Sohler, D., Sorlin, O., Stanoiu, M., Stodel, C., Suzuki, D., Theisen, C., Thisse, D., C. thomas J., Ujic, P., Valiente-Dobon, J. J., and Zielinska, M.

Published
2022

50. New narrow resonances observed in the unbound nucleus <math><mmultiscripts><mi mathvariant='normal'>F</mi><mprescripts/><none/><mn>15</mn></mmultiscripts></math>

Author

Girard-Alcindor, V., Mercenne, A., Stefan, I., de Oliveira Santos, F., Michel, N., Płoszajczak, M., Assié, M., Lemasson, A., Clément, E., Flavigny, F., Matta, A., Ramos, D., Rejmund, M., Dudouet, J., Ackermann, D., Adsley, P., Assunção, M., Bastin, B., Beaumel, D., Benzoni, G., Borcea, R., Boston, A.J., Cáceres, L., Cederwall, B., Celikovic, I., Chudoba, V., Ciemala, M., Collado, J., Crespi, F.C.L., d'Agata, G., de France, G., Delaunay, F., Diget, C., Domingo-Pardo, C., Eberth, J., Fougères, C., Franchoo, S., Galtarossa, F., Georgiadou, A., Gibelin, J., Giraud, S., González, V., Goyal, N., Gottardo, A., Goupil, J., Grévy, S., Guimaraes, V., Hammache, F., Harkness-Brennan, L.J., Hess, H., Oliver, D.S. Judson, Kamalou, O., Kameneyero, A., Kiener, J., Korten, W., Koyama, S., Labiche, M., Lalanne, L., Lapoux, V., Leblond, S., Lefevre, A., Lenain, C., Leoni, S., Li, H., Lopez-Martens, A., Maj, A., Matea, I., Menegazzo, R., Mengoni, D., Meyer, A., Million, B., Monteagudo, B., Morfouace, P., Mrazek, J., Niikura, M., Piot, J., Podolyak, Zs., Portail, C., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rezynkina, K., Roger, T., Rojo, J.S., Rotaru, F., Salsac, M.D., Benitez, A.M. Sánchez, Sanchis, E., Şenyigit, M., de Séréville, N., Siciliano, M., Simpson, J., Sohler, D., Sorlin, O., Stanoiu, M., Stodel, C., Suzuki, D., Theisen, C., Thomas, J.C., Ujic, P., Valiente-Dobón, J.J., Zielińska, M., Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and ANR-17-CE31-0026,OASIS,Optimisation d'Agata pour la physique(2017)

Subjects
[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; The structure of the unbound F15 nucleus is investigated using the inverse kinematics resonant scattering of a radioactive O14 beam impinging on a CH2 target. The analysis of H1(O14,p)O14 and H1(O14,2p)N13 reactions allowed the confirmation of the previously observed narrow 1/2− resonance, near the two-proton decay threshold, and the identification of two new narrow 5/2− and 3/2− resonances. The newly observed levels decay by 1p emission to the ground of O14, and by sequential 2p emission to the ground state of N13 via the 1− resonance of O14. Gamow shell model (GSM) analysis of the experimental data suggests that the wave functions of the 5/2− and 3/2− resonances may be collectivized by the continuum coupling to nearby 2p- and 1p-decay channels. The observed excitation function H1(O14,p)O14 and resonance spectrum in F15 are well reproduced in the unified framework of the GSM.

Published
2022

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