Abstract
Level widths in 15N have been measured with the nuclear resonance fluorescence (NRF) technique. Solid nitrogen compounds, bremsstrahlung, and HPGe detectors have been used as target, beam, and detectors, respectively. The preliminarily level widths are in agreement with the literature values, but more precise.
Highlights
Most of the 15N level widths below the nucleon emission thresholds are known from just one nuclear resonance fluorescence (NRF) measurement published more than 30 years ago [1]
In order to set benchmark values for the upcoming AGATA demonstrator data, the widths of several 15N levels have been remeasured with high precision using NRF
In case of an NRF experiment the observed γ-ray yields are proportional to the total widths of the levels, because both of them are proportional to the energy- and solid angle-integrated resonant scattering cross sections of the excited state
Summary
Most of the 15N level widths below the nucleon emission thresholds are known from just one nuclear resonance fluorescence (NRF) measurement published more than 30 years ago [1]. A recent experiment with the AGATA demonstrator array aimed to determine level widths using the Doppler Shift Attenuation Method (DSAM) in 15O and 15N populated in the 14N+2H reaction [2]. In order to set benchmark values for the upcoming AGATA demonstrator data, the widths of several 15N levels have been remeasured with high precision using NRF
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