E. Masha

A new detection array for underground charged particle spectroscopy at LUNA-400

L. Barbieri, J. Marsh, C. G. Bruno, M. Aliotta et autres

Nuclear astrophysics experiments at low energies greatly benefit from the background reduction afforded by deep underground laboratories, allowing the detection of rare events from low-probability nuclear reactions. While the advantages of this approach are well-known for reactions emitting photons, this strategy has …

Nuclear Physics in Astrophysics

D. Bemmerer, D. Blaschke, O. Ivanytskyi, E. Masha et autres

Abstract Nuclear Physics in Astrophysics studies the production of the chemical elements in astrophysical scenarios ranging from primordial nucleosynthesis to stellar explosions and mergers. This field has seen impressive progress in recent years, both in theory and experiment, as evidenced by the …

de, pl, cn (code pays fourni par la source)

The Impact of Recent LUNA Measurements of NeNa Reactions on 26Al Stellar Nucleosynthesis

Umberto Battino, Tommaso Gallo, D. Vescovi, Sergio Cristallo et autres

Recent measurements performed by the LUNA(Laboratory for Underground Nuclear Astrophysics) collaboration between 2019 and 2024 have provided the most precise direct determinations to date of several key reaction rates in the NeNa cycle, specifically the 20Ne(p,γ)21Na and the 22Ne(p,γ)23Na reactions, as well …

it, gb, de (code pays fourni par la source)

Improved direct measurement of low-energy resonances in the Ne 21 ( p , γ ) Na 22 reaction

R. S. Sidhu, Fausto Casaburo, E. Masha, M. Aliotta et autres

In the nova temperature range, 0.1 GK < T < 0.4 GK, several low-energy resonances dominate the Ne 21 ( p , γ ) Na 22 reaction rate, which is currently affected by large uncertainties. We present a high-precision study of the …

gb, it, de, hu, es (code pays fourni par la source)

Towards a comprehensive study of the $$^{14}$$N(p,$$\gamma $$)$$^{15}$$O astrophysical key reaction: Description of the experimental technique including novel target preparation

A. Compagnucci, A. Formicola, M. Campostrini, J. Cruz et autres

Abstract While the $$^{14}$$ 14 N(p, $$\gamma $$ γ ) $$^{15}$$ 15 O reaction plays a key role in the hydrogen-burning processes in various stellar conditions, its reaction rate is not known with sufficient precision. Therefore, the first scientific project at the …

it, pt, gb, de, hu (code pays fourni par la source)

Solid target production for astrophysical research: the European target laboratory partnership in ChETEC-INFRA

R. Spartá, A. Spiridon, R. Depalo, D. Piatti et autres

it, ro, fr, de, hu (code pays fourni par la source)

Detector characterization for a new 12 C+ 12 C reaction study at LUNA

R. M. Gesuè, S. Turkat, J. Skowronski, M. Aliotta et autres

Abstract The 12 C+ 12 C fusion reaction plays a crucial role in stellar evolution, including the occurrence of supernova explosions, and in the synthesis of the chemical elements. However, our understanding of its cross section remains severely deficient, particularly below E …

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Improved direct measurement of low-energy resonances in the $^{21}$Ne(p,$γ$)$^{22}$Na reaction

R. S. Sidhu, Fausto Casaburo, E. Masha, M. Aliotta et autres

In the nova temperature range, 0.1 GK $< T <$ 0.4 GK, several low-energy resonances dominate the $^{21}$Ne(p,$γ$)$^{22}$Na reaction rate, which is currently affected by large uncertainties. We present a high-precision study of the resonances at $E^{\rm{lab}}_{\rm{r}}$ = 127.3, 271.4, 272.3, 291.5, …

Comparing $$^{3}$$He content in magnetron sputtered and implanted targets for nuclear studies

E. Pilotto, F. J. Ferrer, Shavkat Akhmadaliev, A. Fernández et autres

Abstract $$^{3}$$ 3 He targets are a valuable tool in nuclear physics, particularly for studying nuclear structure and dynamics via direct reactions in inverse kinematics. However, they are often prone to degradation under intense beam irradiation and have insufficient $$^{3}$$ 3 He …

it, es, de (code pays fourni par la source)

Solid Target production for Astrophysical Reasearch: the European target laboratory partnership in ChETEC-INFRA

R. Spartá, A. Spiridon, R. Depalo, D. Piatti et autres

The joint work of European target laboratories in the ChETEC-INFRA project is presented, to face the new experimental challenges of nuclear astrophysics. In particular, results are presented on innovative targets of 12,13C, 16O, and 19F that were produced, characterized, and, in some …

fr (code pays fourni par la source)

A high energy resolution gas target setup to study selected NeNa cycle reactions

E. Masha, Fausto Casaburo, R. S. Sidhu, M. Aliotta et autres

The neon-sodium cycle of hydrogen burning occurs in several astrophysical sites, such as asymptotic giant branch stars and novae, affecting the production of neon and sodium isotopes. To enhance the accuracy of predicted nucleosynthesis yields, there is a pressing need for new …

it, de, gb, hu (code pays fourni par la source)

Revision of the CNO cycle: Rate of O 17 destruction in stars

D. Rapagnani, O. Straniero, G. Imbriani, M. Aliotta et autres

Background: The CNO cycle powers core H burning, in stars with $M>1.2{M}_{\ensuremath{\bigodot}}$, and shell H burning, during the advanced evolutionary phases. Therefore, the uncertainties affecting the reaction rates of proton captures on C, N, and O isotopes limit our understanding of stellar …

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