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Nuclear Physics Mid Term Plan at LNGS
R. Buompane, F. Cavanna, C. Curceanu +59
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 ex…
Strength measurement of the = 830 keV resonance in reaction using a stilbene detector
Shahina, R. J. deBoer, J. Gorres +13
The interplay between the NeMg and the competing NeMg reactions determines the efficiency of the latter as a neutron source at the temperature…
Deep underground laboratory measurement of C(,)O in the Gamow windows of the - and -processes
B. Gao, T. Y. Jiao, Y. T. Li +71
The C(,)O reaction is the main neutron source for the slow-neutron-capture (s-) process in Asymptotic Giant Branch stars and for the intermediate (i-) process.…
Direct measurement of the low energy resonances in reaction
S. Shahina, J. Gorres, D. Robertson +11
The is an important reaction in stellar helium burning environments as it competes directly with one of the main neutron sources for the s-process,…
Horizons: Nuclear Astrophysics in the 2020s and Beyond
H. Schatz, A. D. Becerril Reyes, A. Best +162
Nuclear Astrophysics is a field at the intersection of nuclear physics and astrophysics, which seeks to understand the nuclear engines of astronomical objects and the origin of the…
The Status and Future of Direct Nuclear Reaction Measurements for Stellar Burning
M. Aliotta, R. Buompane, M. Couder +22
The study of stellar burning began just over 100 years ago. Nonetheless, we do not yet have a detailed picture of the nucleosynthesis within stars and how nucleosynthesis impacts s…
Lifetime measurements of excited states in O
B. Frentz, A. Aprahamian, A. M. Clark +14
The CNO cycle is the main energy source in stars more massive than our sun, it defines the energy production and the cycle time that lead to the lifetime of massive stars, and it i…
New measurement of C+C fusion reaction at astrophysical energies
W. P. Tan, A. Boeltzig, C. Dulal +19
Carbon and oxygen burning reactions, in particular, C+C fusion, are important for the understanding and interpretation of the late phases of stellar evolution as well…
Investigation of neutron-induced reaction at the Goethe University Frankfurt
Rene Reifarth, Lukas Bott, Benjamin Brückner +27
We present first results and plans for future neutron activation measurements at the Goethe University Frankfurt. The measurements were performed at the Van-de-Graaff accelerator e…
The 12C(a,g)16O reaction and its implications for stellar helium burning
R. J. deBoer, J. Gorres, M. Wiescher +10
The creation of carbon and oxygen in our universe is one of the forefront questions in nuclear astrophysics. The determination of the abundance of these elements is key to both our…
Stellar () cross section of Na
E. Uberseder, M. Heil, F. Käppeler +5
The cross section of the Na()Na reaction has been measured via the activation method at the Karlsruhe 3.7 MV Van de Graaff accelerator. NaCl samples were expose…
Shell and explosive hydrogen burning
A. Boeltzig, C. G. Bruno, F. Cavanna +10
The nucleosynthesis of light elements, from helium up to silicon, mainly occurs in Red Giant and Asymptotic Giant Branch stars and Novae. The relative abundances of the synthesized…
Experimental study of the astrophysical gamma-process reaction 124Xe(alpha,gamma)128Ba
Z. Halász, E. Somorjai, Gy. Gyürky +8
The synthesis of heavy, proton rich isotopes in the astrophysical gamma-process proceeds through photodisintegration reactions. For the improved understanding of the process, the r…
The first direct measurement of 12C(12C,n)23Mg at stellar energies
B. Bucher, X. D. Tang, X. Fang +28
Neutrons produced by the carbon fusion reaction 12C(12C,n)23Mg play an important role in stellar nucleosynthesis. However, past studies have shown large discrepancies between exper…
Measurement and analysis of the Am-243 neutron capture cross section at the n_TOF facility at CERN
TOF Collaboration, E. Mendoza, D. Cano-Ott +129
Background:The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Reduce the $…
Experimental cross sections of 165Ho(α,n)168Tm and 166Er(α,n)169Yb for optical potential studies relevant for the astrophysical γ-process
Jan Glorius, Kerstin Sonnabend, Joachim Goerres +10
Background: Optical potentials are crucial ingredients for the prediction of nuclear reaction rates needed in simulations of the astrophysical γ-process. Associated uncertainties a…
Measurement of the Ni(,)Zn reaction and its astrophysical impact
S. J. Quinn, A. Spyrou, E. Bravo +23
Cross section measurements of the Ni(,)Zn reaction were performed in the energy range MeV at the Nuclear Science Laboratory of the University of N…
Measurement of the Zr(p,)Nb reactions for the nucleosynthesis of elements around A=90
A. Spyrou, S. J. Quinn, A. Simon +24
Cross section measurements of the reactions Zr(p,)Nb were performed using the NSCL SuN detector at the University of Notre Dame. These reactions are part of…
Systematic study of (p,γ) reactions on Ni isotopes
A. Simon, A. Spyrou, T. Rauscher +23
A systematic study of the radiative proton capture reaction for all stable nickel isotopes is presented. The results were obtained using 2.0 - 6.0 MeV protons from the 11 MV tandem…
Measurement of the reaction O-17(α,n)Ne-20 and its impact on the s process in massive stars
A. Best, M. Beard, J. Görres +16
The ratio between the rates of the reactions O-17(α,n)Ne-20 and O-17(α,γ)Ne-21 determines whether O-16 is an efficient neutron poison for the s process in massive stars, or if most…
Proton Capture on ^{17}O and its astrophysical implications
Antonios Kontos, Joachim Görres, Andreas Best +9
The reaction OF influences hydrogen-burning nucleosynthesis in several stellar sites, such as red giants, asymptotic giant branch (AGB) stars, massive stars and…
First direct measurement of resonance strengths in 17O(α, γ)21Ne
A. Best, J. Görres, M. Couder +10
The reaction 17O(α,γ)21Ne has been measured by in-beam gamma spectroscopy for the first time in the energy range Eα = 750 keV to 1650 keV using highly enriched anodized Ta2(17O)5 t…
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…
The neutron long counter NERO for studies of beta-delayed neutron emission in the r-process
J. Pereira, P. Hosmer, G. Lorusso +23
The neutron long counter NERO was built at the National Superconducting Cyclotron Laboratory (NSCL), Michigan State University, for measuring beta-delayed neutron-emission probabil…