A new study of ${}^{10}$B(p,$\alpha$)${}^7$Be reaction at low energies

Abstract

The ${}^{10}$B(p,$\alpha$)${}^7$Be reaction is of great interest since it has many applications in different fields of research such as nuclear astrophysics, nuclear physics, and models of new reactors for clean energy generation. This reaction has been studied at the AN2000 accelerator of the INFN National Laboratories of Legnaro (LNL). The total cross section has been measured in a wide energy range (250 $-$ 1182 keV) by using the activation method. The decays of the ${}^7$Be nuclei produced by the reaction were measured at the low counting facility of LNL by using two fully shielded high-purity germanium detectors. The present dataset shows a large discrepancy with respect to one of the previous data at the same energies and reduces the total uncertainty to the level of 6\%. An R-matrix calculation has been performed on the present data using the parameters from previous Trojan Horse measurements for the 10 and 500 keV resonances. The present data do not lay on the R-matrix fit in one point suggesting the existence of a ${}^{11}$C level not observed yet. Further nuclear investigations are needed to confirm this hypothesis.

arXiv commentaccepted to EPJA (6 pages, 3 figures)

References in corpus (13)

• SparsePak: A Formatted Fiber Field Unit for The WIYN Telescope Bench Spectrograph. I. Design, Construction, and Calibration
• The Pisa pre-main sequence tracks and isochrones. A database covering a wide range of Z, Y, mass, and age values
• On tadpoles and vacuum redefinitions in String Theory
• Fusion reactions initiated by laser-accelerated particle beams in a laser-produced plasma
• Rotation, inflation, and lithium in the Pleiades
• The worldwide NORM production and a fully automated gamma-ray spectrometer for their characterization
• A Tale of Two Anomalies: Depletion, Dispersion, and the Connection Between the Stellar Lithium Spread and Inflated Radii on the Pre-Main Sequence
• Measurement of the 10 keV resonance in the ${}^{10}$B($p,{\alpha }_0$)${}^7$Be reaction via the Trojan Horse Method
• Boron Depletion in F and G Dwarf Stars and the Beryllium-Boron Correlation
• Alpha-resonance structure in ${}^{11}$C studied via resonant scattering of ${}^7$Be+$\alpha$ and ${}^7$Be($\alpha$, $p$) reaction
• Lithium-7 surface abundance in pre-MS stars. Testing theory against clusters and binary systems
• Astrophysical Reaction Rates for ${}^{10}$B(p,$\alpha$)${}^7$Be and ${}^{11}$B(p,$\alpha$)${}^8$Be From a Direct Model
• Cumulative theoretical uncertainties in lithium depletion boundary age

Cited by in corpus (1)

• A new study of the ${}^{10}$B(p,${\alpha }_1\gamma$)${}^7$Be reaction from 0.35 to 1.8 MeV