64 citations · 304 across the 21 of their papers we have counts for
22 papers
O(p,)F Reaction and the C and O Isotopic Ratios in Red Giant Branch Stars
D. Robb, P. McGlynn, M. Aliotta +55
The O/O isotopic ratio is a widely used tracer of nucleosynthesis and mixing processes in red giant stars. Its value depends on the rates of the proton-capture reacti…
Detector characterization for a new C+C reaction study at LUNA
R. M. Gesùè, S. Turkat, J. Skowroński +50
The C+C fusion reaction plays a crucial role in stellar evolution, including the occurrence of supernova explosions, and in the synthesis of the chemical elements. Ho…
Improved -factor of the C(p,)N reaction at 330-740 keV and parameters of resonances at 448 keV and 551 keV
J. Skowronski, E. Masha, D. Piatti +23
The C(p,)N reaction is the second reaction of the CNO cycle. This cycle takes place in our Sun and fuels massive, Red, and Asymptotic Giant Branch stars. The $^{13…
Advances in Radiative Capture Studies at LUNA with a Segmented BGO Detector
Jakub Skowronski, Riccardo Maria Gesuè, Axel Boeltzig +43
Studies of charged-particle reactions for low-energy nuclear astrophysics require high sensitivity, which can be achieved by means of detection setups with high efficiency and low…
Detectors and Shieldings: Past and Future at LUNA
Chemseddine Ananna, Lucia Barbieri, Axel Boeltzig +11
Nuclear reactions are responsible for the chemical evolution of stars, galaxies and the Universe. Unfortunately, at temperatures of interest for nuclear astrophysics, the cross-sec…
Status and future directions for direct cross-section measurements of the 13C(a,n)16O reaction for astrophysics
L. Csedreki, Gy. Gyürky, D. Rapagnani +45
The 13C(a,n)16O reaction is the main neutron source of the s-process taking place in thermally pulsing AGB stars and it is one of the main candidate sources of neutrons for the i-p…
Nonresonant capture cross section measurement of the 29Si(p,gamma)30P reaction
Zs Mátyus, L Csedreki, Zs Fülöp +5
The isotopic ratios measured in meteoritic presolar grains are a crucial tool for tracing the nucleosynthetic origin of isotopes. In the case of silicon isotopes, two important ind…
Improved direct measurement of low-energy resonances in the Ne(p,)Na reaction
R. S. Sidhu, F. Casaburo, E. Masha +57
In the nova temperature range, 0.1 GK 0.4 GK, several low-energy resonances dominate the Ne(p,)Na reaction rate, which is currently affected by large uncer…
A Comparative Analysis of R-Matrix Fitting: CN as Test Case
J. Skowronski, D. Piatti, D. Rapagnani +49
In nuclear astrophysics, the accurate determination of nuclear reaction cross sections at astrophysical energies is critical for understanding stellar evolution and nucleosynthesis…
Continuous high-yield fast neutron generation with few-cycle laser pulses at 10 Hz for applications
L. Stuhl, P. Varmazyar, Z. Elekes +19
We present a laser-based neutron source that produces neutrons/s with a conversion rate of neutrons/J. Laser pulses of 12 fs and 23 mJ were focu…
Measurement of the E_p = 416.9 keV resonance strength in the 29Si(p,gamma)30P reaction
Zs. Mátyus, L. Csedreki, Zs. Fülöp +5
Silicon isotopic ratios measured in meteoritic presolar grains can provide useful information about the nucleosynthesis origin of these isotopes if the rates of nuclear reactions r…
First direct measurement of the 64.5 keV resonance strength in O(p,)F reaction
R. M. Gesuè, G. F. Ciani, D. Piatti +50
The CNO cycle is one of the most important nuclear energy sources in stars. At temperatures of hydrostatic H-burning (20 MK T 80 MK) the O(p,)F reaction ra…
First measurement of the low-energy direct capture in 20Ne(p, γ)21Na and improved energy and strength of the Ecm = 368 keV resonance
E. Masha, L. Barbieri, J. Skowronski +48
The reaction is the slowest in the NeNa cycle and directly affects the abundances of the Ne and Na isotopes in a variety of astrophysical sites. Her…
New proton-capture rates on carbon isotopes and their impact on the astrophysical ratio
J. Skowronski, A. Boeltzig, G. F. Ciani +43
The ratio is a significant indicator of nucleosynthesis and mixing processes during hydrogen burning in stars. Its value mainly depends on the…
Improved -factor of the C(p,)N reaction at 320-620~keV and the 422~keV resonance
J. Skowronski, E. Masha, D. Piatti +17
The 12C(p,γ)13N reaction is the onset process of both the CNO and Hot CNO cycles that drive massive star, Red and Asymptotic Giant Branch star and novae nucleosynthesis. The 12C(p,…
Cross section measurement of the 12C(p,gamma)13N reaction with activation in a wide energy range
Gy. Gyürky, L. Csedreki, T. Szücs +3
The CNO cycle is one of the fundamental processes of hydrogen burning in stars. The first reaction of the cycle is the radiative proton capture on 12C and the rate of this 12C(p,ga…
Underground Measurements of Nuclear Reaction Cross-Sections Relevant to AGB Stars
Chemseddine Ananna, Francesco Barile, Axel Boeltzig +11
Nuclear reaction cross sections are essential ingredients to predict the evolution of AGB stars and understand their impact on the chemical evolution of our Galaxy. Unfortunately,…
Direct measurement of the 13C(α,n)16O cross section into the s-process Gamow peak
G. F. Ciani, L. Csedreki, D. Rapagnani +45
One of the main neutron sources for the astrophysical s-process is the reaction 13C(α,n)16O, taking place in thermally pulsing Asymptotic Giant Branch stars at temperatures around…
Setup commissioning for an improved measurement of the D(p,gamma)3He cross section at Big Bang Nucleosynthesis energies
V. Mossa, K. Stöckel, F. Cavanna +44
Among the reactions involved in the production and destruction of deuterium during Big Bang Nucleosynthesis, the deuterium-burning D(p,gamma)3He reaction has the largest uncertaint…
A new approach to monitor 13C-targets degradation in situ for 13C(alpha,n)16O cross-section measurements at LUNA
G. F. Ciani, L. Csedreki, J. Balibrea-Correa +46
Direct measurements of reaction cross-sections at astrophysical energies often require the use of solid targets able to withstand high ion beam currents for extended periods of tim…
A high-efficiency gas target setup for underground experiments, and redetermination of the branching ratio of the 189.5 keV resonance
F. Ferraro, M. P. Takács, D. Piatti +42
The experimental study of nuclear reactions of astrophysical interest is greatly facilitated by a low-background, high-luminosity setup. The Laboratory for Underground Nuclear Astr…
Measurement of (alpha,n) reaction cross sections of erbium isotopes for testing astrophysical rate predictions
G. G Kiss, T. Szücs, T. Rauscher +5
The -process in core-collapse and/or type Ia supernova explosions is thought to explain the origin of the majority of the so-called nuclei (the 35 proton-rich isotopes betwe…