Description
Poster Session with snacks and drinks
Dr
Marcell Peter Takacs
(Physikalisch-Technische Bundesanstalt)
11/06/2018, 16:00
Poster
Among the solar fusion reactions, the rate of the $^7$Be($p,\gamma$)$^8$B reaction is one of the most difficult to determine. In a number of previous experiments, its astrophysical $S$-factor has been measured at $E$ = 0.1-2.5 MeV center-of-mass energy. However, no experimental data are available below 0.1 MeV. Thus, an extrapolation to solar energies is necessary, resulting in significant...
Mr
Axel Böltzig
(Universitiy of Notre Dame)
11/06/2018, 16:10
Poster
Fifty years after the first publication of results of the Homestake experiment to detect
solar neutrinos, the Sanford Underground Research Facility (SURF) hosts various facil-
ities for astrophysics experiments deep underground in the Homestake mine. The Ross
Campus, located at a depth of 4850 ft (4300 m.w.e.), is home to the Compact Accelerator
System for Performing Astrophysical Research...
Mr
Marcel Grieger
(Helmholtz-Zentrum Dresden-Rossendorf)
11/06/2018, 16:20
Poster
In order to determine the cross sections of astrophysical reactions at relevant energies pioneering work has been done at LUNA using a 0.4 MV accelerator. The new Felsenkeller laboratory, Germany, will house a 5 MV Pelletron accelerator with stable and intense ion beams in a low background environment to extend on this framework. For this purpose two ion sources are going to be part of the...
Dr
Tamás Szücs
(Helmholtz-Zentrum Dresden-Rossendorf)
11/06/2018, 16:30
Poster
A new underground accelerator facility is being built in tunnels VIII and IX of the Dresden Felsenkeller. Previous $\gamma$-ray background measurements in another part of the tunnel system showed suitable conditions for in-beam nuclear astrophysics experiments [1,2] using germanium detectors with active veto against the cosmic-ray muons. These stable ion beam experiments are of high importance...
Mr
Ragandeep Singh Sidhu
(GSI Darmstadt)
11/06/2018, 16:40
Poster
LOREX (LORandite EXperiment) [1] is based on determining the solar (pp) neutrino flux for the period of 4.31(2) My from the reaction 205Tl + ve →205Pb + e-, the lowest threshold (52 keV) for neutrino capture. For this purpose, one employs the naturally occurring lorandite (TlAsS2) minerals. The goals of LOREX [2] are (i) to determine the probability for capturing Solar neutrinos on 205Tl...
Dr
Rosanna Depalo
(INFN - Sezione di Padova)
11/06/2018, 16:50
Poster
The $^{6}$Li(p,$\gamma$)$^{7}$Be reaction is involved in many astrophysical scenario, ranging from Big Bang Nucleosynthesis to pre-main sequence stellar evolution and solar neutrino.
At astrophysical energies, proton capture on $^{6}$Li proceeds through the $^{6}$Li(p,$\alpha$)$^{3}$He and the $^{6}$Li(p,$\gamma$)$^{7}$Be reactions.
The $^{6}$Li(p,$\alpha$)$^{3}$He cross section is well...
Mr
Thomas Hensel
(Helmholtz-Zentrum Dresden-Rossendorf)
11/06/2018, 17:00
Poster
One important component of the ambient background in underground laboratories are neutrons, which may cover a wide energy range from thermal up to 100 MeV and may affect γ-ray spectra for example by capture and inelastic scattering processes. Underground with more than a few meters rock overburden, cosmic-ray neutrons are removed, and the remaining flux is due to neutron production by...
Mr
Steffen Turkat
(IKTP, TU Dresden)
11/06/2018, 17:10
Poster
The $^3$He($\alpha,\gamma$)$^7$Be reaction affects the nucleosynthesis of $^7$Li as well as the predicted solar $^7$Be and $^8$B neutrino fluxes. It is being studied over a wide energy range at the Rossendorf 3$\,$MV Tandetron accelerator, with a focus on the measurement of the $\gamma$-ray angular distribution at E$\,\approx\,$1$\,$MeV.
There are multiple and overlapping precise...
Mr
Klaus Stöckel
(HZDR)
11/06/2018, 17:20
Poster
Recent, precise measurements of the primordial 2 H abundance [1] have opened the
possibility to precisely determine of the primordial baryon-to-photon ratio, independent from the cosmic microwave background. For their interpretation, the 2 H abundance data require equally precise nuclear data, in particular on the 2H(p,γ)3He reaction.
Deep underground in the Gran Sasso laboratory, Italy,...
Felix Ludwig
(Helmholtz-Zentrum Dresden-Rossendorf)
11/06/2018, 17:30
Poster
Muons, which are produced by cosmic rays in the atmosphere, are highly penetrating and are only mitigated by the roughly $50\,$m of rock above the shallow underground laboratory Felsenkeller in Dresden, Germany, which will be used for the study of reactions happening in the sun.
In order to determine the precise flux and angular distribution amount of muons reaching the tunnels of...
Mr
Edoardo Vitagliano
(Max Planck Institute for Physics)
11/06/2018, 17:40
Poster
In the last few decades we have entered a new era in neutrino observations, from cosmic neutrino background detection proposals to high energy neutrinos astronomy. As theorists, we have to provide the expected flux at different energies. In this poster, I will present a previous overlooked contribution to the "grand unified neutrino spectrum" at Earth: the Solar neutrino thermal flux at keV...
Mr
Sebastian Hammer
(HZDR Dresden-Rossendorf)
11/06/2018, 17:50
Poster
The amount of deuterium produced in Big Bang Nucleosynthesis depends sensitively on cosmological parameters such as the baryon energy density and the effective number of neutrino species. The recently improved precision of astronomical measurements of the primordial deuterium abundance [1] calls also for more precise nuclear
data. Currently, the precision of the Big Bang abundance prediction...
