Search Results - "Stöckel, K"
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The baryon density of the Universe from an improved rate of deuterium burning
Published in Nature (London) (12-11-2020)“…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 …”
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Direct Measurement of the C 13 ( α , n ) O 16 Cross Section into the s -Process Gamow Peak
Published in Physical review letters (08-10-2021)Get full text
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Improved astrophysical rate for the 18O(p,α)15N reaction by underground measurements
Published in Physics letters. B (01-03-2019)“…The 18O(p,α)15N reaction affects the synthesis of 15N, 18O and 19F isotopes, whose abundances can be used to probe the nucleosynthesis and mixing processes…”
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Cross section of the reaction 18O(p,γ)19F at astrophysical energies: The 90 keV resonance and the direct capture component
Published in Physics letters. B (01-10-2019)“…The observation of oxygen isotopes in giant stars sheds light on mixing processes operating in their interiors. Due to the very strong correlation between…”
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Direct measurements of low-energy resonance strengths of the 23Na(p,γ)24Mg reaction for astrophysics
Published in Physics letters. B (01-08-2019)“…The NeNa and the MgAl cycles play a fundamental role in the nucleosynthesis of asymptotic giant branch stars undergoing hot bottom burning. The Na23(p,γ)24Mg…”
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A new approach to monitor 13C-targets degradation in situ for 13C(α,n)16O cross-section measurements at LUNA
Published in The European physical journal. A, Hadrons and nuclei (2020)“…Direct measurements of reaction cross-sections at astrophysical energies often require the use of solid targets able to withstand high ion beam currents for…”
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A high-efficiency gas target setup for underground experiments, and redetermination of the branching ratio of the 189.5 keV 22Ne(p,γ)23Na resonance
Published in The European physical journal. A, Hadrons and nuclei (2018)“… The experimental study of nuclear reactions of astrophysical interest is greatly facilitated by a low-background, high-luminosity setup. The Laboratory for…”
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Felsenkeller shallow-underground accelerator laboratory for nuclear astrophysics
Published in EPJ Web of conferences (01-01-2015)“…Favored by the low background in underground laboratories, low-background accelerator-based experiments are an important tool to study nuclear reactions…”
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Direct Capture Cross Section and the E p = 71 and 105 keV Resonances in the Ne 22 ( p , γ ) Na 23 Reaction
Published in Physical review letters (23-10-2018)Get full text
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First direct limit on the 334 keV resonance strength in $$^{22}$$Ne($$\alpha $$,$$\gamma $$)$$^{26}$$Mg reaction
Published in The European physical journal. A, Hadrons and nuclei (07-10-2022)“…In stars, the fusion of $$^{22}$$ 22 Ne and $$^4$$ 4 He may produce either $$^{25}$$ 25 Mg, with the emission of a neutron, or $$^{26}$$ 26 Mg and a $$\gamma…”
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Characterization of the LUNA neutron detector array for the measurement of the 13C(α, n)16O reaction
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-04-2021)“…We introduce the LUNA neutron detector array developed for the investigation of the 13C(α, n)16O reaction towards its astrophysical s-process Gamow peak in the…”
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Setup commissioning for an improved measurement of the D(p,γ)3He cross section at Big Bang Nucleosynthesis energies
Published in The European physical journal. A, Hadrons and nuclei (01-01-2020)“…Among the reactions involved in the production and destruction of deuterium during Big Bang Nucleosynthesis, the deuterium-burning D(p,γ)3He reaction has the…”
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Setup commissioning for an improved measurement of the D(p,γ)3He cross section at Big Bang Nucleosynthesis energies: LUNA collaboration
Published in The European physical journal. A, Hadrons and nuclei (2020)“…Among the reactions involved in the production and destruction of deuterium during Big Bang Nucleosynthesis, the deuterium-burning D(p, γ ) 3 He reaction has…”
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Specificity of the retrograde axonal transport of nerve growth factor
Published in Brain research (23-08-1974)Get more information
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First direct limit on the 334 keV resonance strength in 22Ne(α,γ)26Mg reaction
Published in The European physical journal. A, Hadrons and nuclei (07-10-2022)“…In stars, the fusion of 22 Ne and 4 He may produce either 25 Mg, with the emission of a neutron, or 26 Mg and a γ ray. At high temperature, the ( α , n )…”
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The retrograde axonal transport of nerve growth factor
Published in Brain research (15-03-1974)“…A retrograde axonal transport of nerve growth factor (NGF) from the adrenergic nerve terminals in the mouse iris to the cell bodies of postganglionic…”
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Comparison between the retrograde axonal transport of nerve growth factor and tetanus toxin in motor, sensory and adrenergic neurons
Published in Brain research (28-11-1975)“…In previous studies it has been shown that nerve growth factor (NGF) is taken up with high selectivity by adrenergic and sensory nerve terminals and is…”
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Direct Measurement of the ^{13}C(α,n)^{16}O Cross Section into the s-Process Gamow Peak
Published in Physical review letters (08-10-2021)Get full text
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