activity
19972026
most citedS-factor of 14N(p,gamma)15O at astrophysical energies

253 citations · 2.4k across the 42 of their papers we have counts for

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28 papers · 1 filter

nucl-ex2026

First Nb() Measurement: Constraining the Nucleosynthetic Origin of Mo in Presolar Grains

J. Balibrea-Correa, J. Lerendegui-Marco, C. Domingo-Pardo +136

Isotopic measurements of presolar silicon carbide grains from dying stars have revealed a puzzling overabundance of Mo that stellar nucleosynthesis models have failed to rep…

nucl-ex2020

Strangeness photoproduction at the BGO-OD experiment

Georg Scheluchin, Stefan Alef, Patrick Bauer +30

The BGO-OD experiment at the University of Bonn's ELSA accelerator facility in Germany is ideally suited to investigate photoproduction at extreme forward angles. It combines a hig…

nucl-ex2020★ 1 cited

Strangeness Photoproduction at the BGO-OD experiment

T. C. Jude, S. Alef, P. Bauer +30

The BGO-OD experiment at the ELSA accelerator facility uses an energy tagged bremsstrahlung photon beam to investigate the excitation structure of the nucleon. The setup consists o…

nucl-ex2015★ 1 cited

Strangeness Photoproduction at the BGO-OD Experiment

T. C. Jude, S. Alef, D. Bayadilov +61

BGO-OD is a newly commissioned experiment to investigate the internal structure of the nucleon, using an energy tagged bremsstrahlung photon beam at the ELSA electron facility. The…

nucl-ex2014★ 31 cited

First Measurement of the Beam Asymmetry in Photoproduction off the Proton near Threshold

P. Levi Sandri, G. Mandaglio, V. De Leo +33

The beam asymmetry in photoproduction off the proton was measured at the GrAAL polarised photon beam with incoming photon energies of 1.461 and 1.480 GeV. For both…

nucl-ex2013★ 34 cited

Neutron-induced background by an alpha-beam incident on a deuterium gas target and its implications for the study of the 2H(alpha,gamma)6Li reaction at LUNA

M. Anders, D. Trezzi, A. Bellini +26

The production of the stable isotope Li-6 in standard Big Bang nucleosynthesis has recently attracted much interest. Recent observations in metal-poor stars suggest that a cosmolog…

nucl-ex2012★ 53 cited

Preparation and characterisation of isotopically enriched TaO targets for nuclear astrophysics studies

A. Caciolli, D. A. Scott, A. Di Leva +33

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…

nucl-ex2011★ 54 cited

The 14N(p,gamma)15O reaction studied with a composite germanium detector

M. Marta, A. Formicola, D. Bemmerer +26

The rate of the carbon-nitrogen-oxygen (CNO) cycle of hydrogen burning is controlled by the 14N(p,gamma)15O reaction. The reaction proceeds by capture to the ground states and seve…

nucl-ex2010★ 20 cited

Beam asymmetry measurements on the photoproduction off neutrons

G. Mandaglio, F. Mammoliti, M. Manganaro +30

The beam asymmetry in the photoproduction of negative pions from quasi-free neutrons in a deuterium target was measured at Graal in the energy interval 700 - 1500 MeV and a wid…

nucl-ex2010★ 44 cited

An actively vetoed Clover gamma-detector for nuclear astrophysics at LUNA

LUNA collaboration, T. Szucs, D. Bemmerer +26

An escape-suppressed, composite high-purity germanium detector of the Clover type has been installed at the Laboratory for Underground Nuclear Astrophysics (LUNA) facility, deep un…

nucl-ex2009★ 49 cited

Direct measurement of the 15N(p,gamma)16O total cross section at novae energies

D Bemmerer, A Caciolli, R Bonetti +21

The 15N(p,gamma)16O reaction controls the passage of nucleosynthetic material from the first to the second carbon-nitrogen-oxygen (CNO) cycle. A direct measurement of the total 15N…

nucl-ex2008★ 71 cited

Ultra-sensitive in-beam gamma-ray spectroscopy for nuclear astrophysics at LUNA

A. Caciolli, L. Agostino, D. Bemmerer +29

Ultra-sensitive in-beam gamma-ray spectroscopy studies for nuclear astrophysics are performed at the LUNA (Laboratory for Underground Nuclear Astrophysics) 400 kV accelerator, deep…

nucl-ex2008★ 83 cited

The 3He(alpha,gamma)7Be S-factor at solar energies: the prompt gamma experiment at LUNA

H. Costantini, D. Bemmerer, F. Confortola +28

The 3He(alpha,gamma)7Be process is a key reaction in both Big-Bang nucleosynthesis and p-p chain of Hydrogen Burning in Stars. A new measurement of the 3He(alpha,gamma)7Be cross se…

nucl-ex2008★ 96 cited

Precision study of ground state capture in the 14N(p,gamma)15O reaction

M. Marta, A. Formicola, Gy. Gyurky +28

The rate of the hydrogen-burning carbon-nitrogen-oxygen (CNO) cycle is controlled by the slowest process, 14N(p,gamma)15O, which proceeds by capture to the ground and several excit…

nucl-ex2008★ 83 cited

Measurement of beam-recoil observables Ox, Oz and target asymmetry for the reaction gamma p -> K Lambda

A. Lleres, O. Bartalini, JP. Bocquet +36

The double polarization (beam-recoil) observables Ox and Oz have been measured for the reaction gamma p -> K Lambda from threshold production to Egamma = 1500 MeV. The data were ob…

nucl-ex2007★ 7 cited

Measurement of 25Mg(p; gamma)26Al resonance strengths via gamma spectrometry

A. Formicola, A. Best, G. Imbriani +28

The COMPTEL instrument performed the first mapping of the 1.809 MeV photons in the Galaxy, triggering considerable interest in determing the sources of interstellar 26Al. The predi…

nucl-ex2007★ 2 cited

Ground state capture in N(p,)O studied above the 259 keV resonance at LUNA

H. P. Trautvetter, D. Bemmerer, R. Bonetti +29

We report on a new measurement of N(p,)O for the ground state capture transition at = 360, 380 and 400 keV, using the 400 kV LUNA accelerator. The true coinc…

nucl-ex2007★ 3 cited

Comparison of the LUNA 3He(alpha,gamma)7Be activation results with earlier measurements and model calculations

Gy. Gyurky, D. Bemmerer, F. Confortola +27

Recently, the LUNA collaboration has carried out a high precision measurement on the 3He(alpha,gamma)7Be reaction cross section with both activation and on-line gamma-detection met…

nucl-ex2007★ 140 cited

Astrophysical S-factor of the 3He(alpha,gamma)7Be reaction measured at low energy via prompt and delayed gamma detection

F. Confortola, D. Bemmerer, H. Costantini +28

Solar neutrino fluxes depend both on astrophysical and on nuclear physics inputs, namely on the cross sections of the reactions responsible for neutrino production inside the Solar…

nucl-ex2007★ 102 cited

3He(alpha,gamma)7Be cross section at low energies

Gy. Gyurky, F. Confortola, H. Costantini +27

The flux of 7Be and 8B neutrinos from the Sun and the production of 7Li via primordial nucleosynthesis depend on the rate of the 3He(alpha,gamma)7Be reaction. In extension of a pre…

nucl-ex2006★ 153 cited

Activation measurement of the 3He(alpha,gamma)7Be cross section at low energy

D. Bemmerer, F. Confortola, H. Costantini +27

The nuclear physics input from the 3He(alpha,gamma)7Be cross section is a major uncertainty in the fluxes of 7Be and 8B neutrinos from the Sun predicted by solar models and in the…

nucl-ex2006★ 124 cited

First measurement of the 14N(p,gamma)15O cross section down to 70 keV

A. Lemut, D. Bemmerer, F. Confortola +28

In stars with temperatures above 20*10^6 K, hydrogen burning is dominated by the CNO cycle. Its rate is determined by the slowest process, the 14N(p,gamma)15O reaction. Deep underg…

nucl-ex2005★ 253 cited

S-factor of 14N(p,gamma)15O at astrophysical energies

G. Imbriani, H. Costantini, A. Formicola +31

The astrophysical S-factor of 14N(p,gamma)15O has been measured for effective center-of-mass energies between E_eff = 119 and 367 keV at the LUNA facility using TiN solid targets a…

nucl-ex2005★ 68 cited

Feasibility of low energy radiative capture experiments at the LUNA underground accelerator facility

D. Bemmerer, F. Confortola, A. Lemut +29

The LUNA (Laboratory Underground for Nuclear Astrophysics) facility has been designed to study nuclear reactions of astrophysical interest. It is located deep underground in the Gr…