The EXL experiment at FAIR and plans with the ESR at GSI

In this contribution, the physics program of the EXL experiment at FAIR-NuSTAR along with its experimental setup will be briefly outlined. This experiment aims to study the structure and the dynamics of radioactive nuclei which collide with light ions in inverse kinematics. On the way to the final measurements, several measurements have been proposed at the existing ESR at GSI with the purpose of understanding the detection systems for EXL and obtaining the first physics results in this type of experiments in a storage ring

Capture reaction cross-section measurements relevant to p process: the case of (α , γ) reactions on 63Cu, 72Ge,118Sn and the 107Ag(ρ, γ)108Cd reaction

The cross sections of the 72Ge( α , γ)76Se and 1°7Ag(ρ, γ)1°8Cd reactions were measured at energies relevant to p-process nucleosynthesis. The new data, together with cross section results from our previous ( α , γ) measure-ments on 65Cu and 118Sn and other ( α , γ) cross-section data reported in lit-erature are compared with statistical model calculations performed using the latest version (1.9) of the statistical model code TALYS. In addition, the effect on these calculations of different combinations of the optical model potentials (OMPs), nuclear level densities (NLDs) and γ-ray strength functions (γSFs) entering the calculations was investigated

Capture reaction cross-section measurements relevant to p process: the case of (α , γ) reactions on

The cross sections of the 72Ge( α , γ)76Se and 1°7Ag(ρ, γ)1°8Cd reactions were measured at energies relevant to p-process nucleosynthesis. The new data, together with cross section results from our previous ( α , γ) measure-ments on 65Cu and 118Sn and other ( α , γ) cross-section data reported in lit-erature are compared with statistical model calculations performed using the latest version (1.9) of the statistical model code TALYS. In addition, the effect on these calculations of different combinations of the optical model potentials (OMPs), nuclear level densities (NLDs) and γ-ray strength functions (γSFs) entering the calculations was investigated

Se(p-γ) cross section measurements for p-process studies

As a continuation of a systematic study of reactions relevant to astrophysical p-process, the (p,γ) or (p.n) cross sections of three Se isotopes have been measured using an activation technique in the proton energy range between 1.3 and 3.6 MeV. The resulting cross sections of the 74,76Se(p,γ)75,77Br and 82Se(p,n)82Br reaction have been conipared with the predictions of Hauser-Feshbach statistical model calculations using the NON-SMOKER and MOST codes. In all three cases the theory is in satisfactory agreement with the measurements.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Cross-section measurment of 93Nb(p,gamma) 94Mo in the range 1.4-4 MeV

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The FIDIAS project: Development of a Micromegas TPC for the detection of low-energy heavy ions

International audienceTime Projection Chambers are widely used since many years for tracking and identification of charged particles in high energy physics. We present here a new R&D project, called FIDIAS, meant to investigate the feasibility of a Micromegas TPC for low energy heavy ions detection. In this framework, a TPC prototype based on Micromegas bulk technique has been extensively tested with spontaneous fission source. A deep analysis of the experimental results has been realized leading to a full characterization of the prototype in terms of gain, energy resolution and track reconstruction as a function of three working gas: helium, neon and argon. The encouraging results have also been compared to simulations, showing the Micromegas TPC is a very well suited detector for the detection of heavy ions in nuclear reactions at low energy

The 88Sr(p, γ)89Y reaction at astrophysically relevant energies

SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Cross section measurements of the 93Nb(p,γ)94Mo reaction at Ep=1.4-4.9 MeV relevant to the nucleosynthetic p process

SCOPUS: ar.jinfo:eu-repo/semantics/publishe

The [Formula Presented] reaction at astrophysically relevant energies

The cross section of the [Formula Presented] reaction was determined by in-beam measurements at energies [Formula Presented] relevant to the nucleosynthetic p process. At [Formula Presented] the γ angular distributions were obtained by using one HPGe detector of 80% relative efficiency, whereas at [Formula Presented] they were measured by means of an array of four HPGe detectors all shielded with BGO crystals for Compton background supression. Three of them had a relative efficiency [Formula Presented] whereas the remaining one had [Formula Presented] From the resulting cross sections, that lie in the 0.5-μb–5-mb range, astrophysical S factors and reaction rates have been derived. Cross sections, S factors, and reaction rates have also been calculated by means of the statistical model code MOST. A very good agreement between the experimental data and the theoretical predictions has been found. © 2003 The American Physical Society.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Cross-section measurments of (p,gamma)-reactions relevant to p-process

info:eu-repo/semantics/publishe