Erratum: High-resolution study of Gamow-Teller transitions with the37Cl(3He,t)

Abstract

Erratum: High-resolution study of Gamow-Teller transitions with the 37 Cl( 3 He, t) 37 Ar reaction [Phys. Rev. C 86, 024312 (2012)]

Experimental Study of Beta-Delayed Proton Emission of 36,37 Ca

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The investigation of beta-delayed proton decay mode has become a powerful probe to study the proton-rich nuclei and their nuclear structure. To study exotic nuclei with extremely low purity produced by the Radioactive Ion Beam Line in Lanzhou, we perform an experiment of beta-delayed proton emission of 36,37 Ca under a high-intensity continuous-beam mode. Ions are implanted into a double-sided silicon strip detector, where the subsequent decays are correlated to the preceding implantations in time sequence.

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“…Ions are implanted into a double-sided silicon strip detector, where the subsequent decays are correlated to the preceding implantations in time sequence. The energy spectra of delayed protons from 36,37 Ca𝛽 decay, half-lives and decay branching ratios are measured. The experimental results confirm the previous literature data and some improved results are obtained as well, demonstrating the feasibility of our detection approach and the reliability of our data analysis procedure.…”

“…In return, the exploration of new phenomena and new laws drives the technical reform, development and innovation. [17,18] The Gamow-Teller strength 𝐵(GT) distribution in the 𝐴 = 37 system was of astrophysical interest and has been studied intensely,experimentally and theoretically, due to the fact that it is needed for calibrating the efficiency of the 37 Cl solar neutrino detector. [19−23] The large energy released in the decays of 37 Ca (𝑄 EC = 11664 keV) and 36 Ca (𝑄 EC = 10970 keV) also provides opportunities to compare 𝛽 decay 𝐵(GT) distributions to the corresponding 𝐵(GT) distributions extracted from forward-angle (p,n) reactions on the 𝑁 = 20 mirror nuclei over a very wide range of excitation energies and to test the shell-model calculations.…”

“…[17,18] The Gamow-Teller strength 𝐵(GT) distribution in the 𝐴 = 37 system was of astrophysical interest and has been studied intensely,experimentally and theoretically, due to the fact that it is needed for calibrating the efficiency of the 37 Cl solar neutrino detector. [19−23] The large energy released in the decays of 37 Ca (𝑄 EC = 11664 keV) and 36 Ca (𝑄 EC = 10970 keV) also provides opportunities to compare 𝛽 decay 𝐵(GT) distributions to the corresponding 𝐵(GT) distributions extracted from forward-angle (p,n) reactions on the 𝑁 = 20 mirror nuclei over a very wide range of excitation energies and to test the shell-model calculations. Under the assumption of isospin symmetry, the 𝐵(GT) distribution for 37 Ca 𝛽 decay and that inferred from 37 Cl(p,n) 37 Ar should be identical, [24] and likewise, the 𝐵(GT) extracted from 36 Ca 𝛽 decay and that inferred from 36 S(p,n) 36 Cl should be identical.…”

“…[19−23] The large energy released in the decays of 37 Ca (𝑄 EC = 11664 keV) and 36 Ca (𝑄 EC = 10970 keV) also provides opportunities to compare 𝛽 decay 𝐵(GT) distributions to the corresponding 𝐵(GT) distributions extracted from forward-angle (p,n) reactions on the 𝑁 = 20 mirror nuclei over a very wide range of excitation energies and to test the shell-model calculations. Under the assumption of isospin symmetry, the 𝐵(GT) distribution for 37 Ca 𝛽 decay and that inferred from 37 Cl(p,n) 37 Ar should be identical, [24] and likewise, the 𝐵(GT) extracted from 36 Ca 𝛽 decay and that inferred from 36 S(p,n) 36 Cl should be identical. Here 37 Ca is a unique case where 𝛽-decay and charge-exchange reactions have been studied with high energy resolution.…”