76 citations · 833 across the 31 of their papers we have counts for
21 papers · 1 filter
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…
Improved Mo neutron resonance parameters from neutron capture and transmission measurements at n_TOF and GELINA
R. Mucciola, S. Cristallo, S. Kopecky +140
We report high-resolution measurements of the cross section in the neutron energy range from a few eV up to about 250 keV, performe…
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…
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…
Neutron capture measurements for s-process nucleosynthesis; A review about CERN n_TOF developments and contributions
C. Domingo-Pardo, O. Aberle, V. Alcayne +143
This article presents a review about the main CERN n\_TOF contributions to the field of neutron-capture experiments of interest for -process nucleosynthesis studies over the las…
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…
First measurement of the Nb(,) cross section at the CERN n\_TOF facility
J. Balibrea-Correa, V. Babiano-Suarez, J. Lerendegui-Marco +134
One of the crucial ingredients for the improvement of stellar models is the accurate knowledge of neutron capture cross-sections for the different isotopes involved in the -,…
Advances and new ideas for neutron-capture astrophysics experiments at CERN n_TOF
C. Domingo-Pardo, V. Babiano-Suarez, J. Balibrea-Correa +136
This article presents a few selected developments and future ideas related to the measurement of data of astrophysical interest at CERN n_TOF. The MC-aided analysis methodo…
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…
Direct capture cross section and the = 71 and 105 keV resonances in the Ne()Na reaction
F. Ferraro, M. P. Takács, D. Piatti +41
The Ne()Na reaction, part of the neon-sodium cycle of hydrogen burning, may explain the observed anticorrelation between sodium and oxygen abundances in globular…
Effect of beam energy straggling on resonant yield in thin gas targets: The cases Ne(p,γ)Na and N(p,γ)O
D. Bemmerer, F. Cavanna, R. Depalo +25
When deriving resonance strengths using the thick-target yield approximation, for very narrow resonances it may be necessary to take beam energy straggling into account. This appli…
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…
Direct measurement of low-energy Ne(p,)Na resonances
R. Depalo, F. Cavanna, M. Aliotta +30
The Ne(p,)Na reaction is the most uncertain process in the neon-sodium cycle of hydrogen burning. At temperatures relevant for nucleosynthesis in asymptotic giant…
Improved Direct Measurement of the 64.5 keV Resonance Strength in the 17O(p,a)14N Reaction at LUNA
C. G. Bruno, D. A. Scott, M. Aliotta +32
The O(p,)N reaction plays a key role in various astrophysical scenarios, from asymptotic giant branch stars to classical novae. It affects the synthesis of rare is…
Three new low-energy resonances in the Ne(p,)Na reaction
F. Cavanna, R. Depalo, M. Aliotta +31
The Ne(p,)Na reaction takes part in the neon-sodium cycle of hydrogen burning. This cycle affects the synthesis of the elements between Ne and Al in…
A new study of the Ne(p,)Na reaction deep underground: Feasibility, setup, and first observation of the 186 keV resonance
F. Cavanna, R. Depalo, M. -L. Menzel +28
The Ne(p,)Na reaction takes part in the neon-sodium cycle of hydrogen burning. This cycle is active in asymptotic giant branch stars as well as in novae and contri…
Measurement of the Σ beam asymmetry for the ω photo-production off the proton and the neutron at GRAAL
V. Vegna, A. D'Angelo, O. Bartalini +34
We report on new measurements of the beam asymmetry for ω photo-production on proton and neutron in Hydrogen and Deuterium targets from the GRAAL collaboration. The beam asymmetry…
Constraining the S factor of 15N(p,g)16O at Astrophysical Energies
P. J. LeBlanc, G. Imbriani, J. Goerres +44
The 15N(p,g)16O reaction represents a break out reaction linking the first and second cycle of the CNO cycles redistributing the carbon and nitrogen abundances into the oxygen rang…
New experimental study of low-energy (p,gamma) resonances in magnesium isotopes
B. Limata, F. Strieder, A. Formicola +30
Proton captures on Mg isotopes play an important role in the Mg-Al cycle active in stellar H shell burning. In particular, the strengths of low-energy resonances with E < 200 keV i…