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Open AccessNuclear Physics Mid Term Plan at LNGS
The Istituto Nazionale di Fisica Nucleare—Laboratori Nazionali del Gran Sasso (LNGS) is one of the largest underground physics laboratory, a very peculiar environment suited for experiments in Astroparticle Ph...
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Article
Open AccessDirect measurements of the \(^{12}\) C+ \(^{12}\) C reactions cross-sections towards astrophysical energies
Carbon fusion reactions \(^{12}\) 12 ...
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Open AccessRetraction Note: Direct measurements of the 12C + 12C reactions cross-sections towards astrophysical energies
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Open AccessFirst direct limit on the 334 keV resonance strength in \(^{22}\) Ne( \(\alpha \) , \(\gamma \) ) \(^{26}\) Mg reaction
In stars, the fusion of \(^{22}\) 22 ...
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Article
Open AccessRETRACTED ARTICLE: Direct measurements of the \(^{12}\) C+ \(^{12}\) C reactions cross-sections towards astrophysical energies
Carbon fusion reactions \(^{12}\) 12 ...
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Article
The baryon density of the Universe from an improved rate of deuterium burning
Light elements were produced in the first few minutes of the Universe through a sequence of nuclear reactions known as Big Bang nucleosynthesis (BBN)1,2. Among the light elements produced during BBN1,2, deuterium...
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Setup commissioning for an improved measurement of the D(p,\(\gamma \))\(^3\)He cross section at Big Bang Nucleosynthesis energies
Among the reactions involved in the production and destruction of deuterium during Big Bang Nucleosynthesis, the deuterium-burning D(p,\(\gamma \)γ)\(^3\)3He reaction has the largest uncertainty and limits the pr...
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Article
A new approach to monitor \(^{13}\hbox {C}\)-targets degradation in situ for \(^{13}\hbox {C}(\alpha ,\hbox {n})^{16}\hbox {O}\) cross-section measurements at LUNA
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 time. Thus, monitoring target th...
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Open AccessHigh-resolution radioactive beam study of the \(^{26}\hbox {Al}(d,p\)) reaction and measurements of single-particle spectroscopic factors
We present a detailed comparison of shell model calculations with inverse kinematic transfer reaction data, obtained using a radioactive beam. Experimentally extracted spectroscopic factors from the $$^{26}\hbox ...
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Development of a two-stage detection array for low-energy light charged particles in nuclear astrophysics applications
A new detection array called GASTLY (GAs-Silicon Two-Layer sYstem) has been designed to detect and identify low-energy light particles emitted in nuclear reactions of astrophysical interest. Devoted to the mea...
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Open AccessReduction of deuterium content in carbon targets for 12C + 12C reaction studies of astrophysical interest
The 12C(12C,p)23Na and 12C(12C, \(\alpha\) α ...
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Article
A high-efficiency gas target setup for underground experiments, and redetermination of the branching ratio of the 189.5 keV 22Ne(p, \(\gamma\) )23Na resonance
The experimental study of nuclear reactions of astrophysical interest is greatly facilitated by a low-background, high-luminosity setup. The Laboratory for Underground Nuclear Astrophysics (LUNA) 400kV acceler...
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Article
Origin of meteoritic stardust unveiled by a revised proton-capture rate of 17O
Stardust grains recovered from meteorites provide high-precision snapshots of the isotopic composition of the stellar environment in which they formed1. Attributing their origin to specific types of stars, howeve...
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Helium burning and neutron sources in the stars
Helium burning represents an important stage of stellar evolution as it contributes to the synthesis of key elements such as carbon, through the triple- ...
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Article
Resonance strengths in the 17,18O(p, α)14,15N reactions and background suppression underground
We report on measurements of resonance strengths and energies for the \( E_{p} = 151\) and 193 keV resonances in the 18
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A new study of the 22Ne(p, γ)23Na reaction deep underground: Feasibility, setup and first observation of the 186 keV resonance
The 22Ne(p,γ)23Na 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 contributes to the nucleosythesis of neon and sodi...
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Article
Neutron-induced background by an α-beam incident on a deuterium gas target and its implications for the study of the 2H(α,γ)6Li reaction at LUNA
The production of the stable isotope 6Li in standard Big Bang nucleosynthesis has recently attracted much interest. Recent observations in metal-poor stars suggest that a cosmological 6Li plateau may exist. If tr...
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Article
Preparation and characterisation of isotopically enriched Ta2O5 targets for nuclear astrophysics studies
The direct measurement of reaction cross-sections at astrophysical energies often requires the use of solid targets of known thickness, isotopic composition, and stoichiometry that are able to withstand high b...
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Article
Storage ring at HIE-ISOLDE
We propose to install a storage ring at an ISOL-type radioactive beam facility for the first time. Specifically, we intend to setup the heavy-ion, low-energy ring TSR at the HIE-ISOLDE facility in CERN, Geneva...
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Article
Indirect Study of the 2H(d,p)3H and 2H(d,n)3He Reactions at Astrophysical Energies via the Trojan Horse Method
The 2H(d,p)3H and 2H(d,n)3He reactions have been indirectly studied by means of the Trojan Horse Method applied to the quasi-free 2H(3He, p3H)1H 2H(3He, n3He)1H reaction at 18 MeV of beam energy. This is the firs...
