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Abstract <p>The formation of the excited states <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\({}^{12}\)</EquationSource> <!--NuclPhys2560161Zaitsev-m5--> </InlineEquation>C(0<InlineEquation ID="IEq6"> <EquationSource Format="TEX">\({}^{+}_{2}\)</EquationSource> <!--NuclPhys2560161Zaitsev-m6--> </InlineEquation>) and <InlineEquation ID="IEq7"> <EquationSource Format="TEX">\({}^{12}\)</EquationSource> <!--NuclPhys2560161Zaitsev-m7--> </InlineEquation>C(3<InlineEquation ID="IEq8"> <EquationSource Format="TEX">\({}^{-}\)</EquationSource> <!--NuclPhys2560161Zaitsev-m8--> </InlineEquation>) is investigated in the dissociation of <InlineEquation ID="IEq9"> <EquationSource Format="TEX">\({}^{12}\textrm{C}\to 3\alpha\)</EquationSource> <!--NuclPhys2560161Zaitsev-m9--> </InlineEquation> and <InlineEquation ID="IEq10"> <EquationSource Format="TEX">\({}^{16}\textrm{O}\to 4\alpha\)</EquationSource> <!--NuclPhys2560161Zaitsev-m10--> </InlineEquation> at the energy of 3.65 GeV per nucleon in the nuclear emulsion. The identification becomes possible through reconstructing the invariant mass from measurements of emission angles in the approximation of conservation of momentum per nucleon of the parent nucleus. The contribution of the decays <InlineEquation ID="IEq11"> <EquationSource Format="TEX">\({}^{12}\)</EquationSource> <!--NuclPhys2560161Zaitsev-m11--> </InlineEquation>C(0<InlineEquation ID="IEq12"> <EquationSource Format="TEX">\({}^{+}_{2}\)</EquationSource> <!--NuclPhys2560161Zaitsev-m12--> </InlineEquation>) and <InlineEquation ID="IEq13"> <EquationSource Format="TEX">\({}^{12}\)</EquationSource> <!--NuclPhys2560161Zaitsev-m13--> </InlineEquation>C(3<InlineEquation ID="IEq14"> <EquationSource Format="TEX">\({}^{-}\)</EquationSource> <!--NuclPhys2560161Zaitsev-m14--> </InlineEquation>) to the dissociation <InlineEquation ID="IEq15"> <EquationSource Format="TEX">\({}^{12}\textrm{C}\to 3\alpha\)</EquationSource> <!--NuclPhys2560161Zaitsev-m15--> </InlineEquation> is 11 and 19<InlineEquation ID="IEq16"> <EquationSource Format="TEX">\(\%\)</EquationSource> <!--NuclPhys2560161Zaitsev-m16--> </InlineEquation>, and in <InlineEquation ID="IEq17"> <EquationSource Format="TEX">\({}^{16}\textrm{O}\to 4\alpha\)</EquationSource> <!--NuclPhys2560161Zaitsev-m17--> </InlineEquation> it is 20 and 30<InlineEquation ID="IEq18"> <EquationSource Format="TEX">\(\%\)</EquationSource> <!--NuclPhys2560161Zaitsev-m18--> </InlineEquation>, correspondingly.</p>

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On Formation of the \({}^{{12}}\mathbf{C}{(0^{+}_{2})}\) and \({}^{{12}}\mathbf{C}{(3^{-})}\) States in Relativistic Dissociation of Light Nuclei

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • A. A. Zaitsev,
  • P. I. Zarubin

摘要

Abstract

The formation of the excited states \({}^{12}\) C(0 \({}^{+}_{2}\) ) and \({}^{12}\) C(3 \({}^{-}\) ) is investigated in the dissociation of \({}^{12}\textrm{C}\to 3\alpha\) and \({}^{16}\textrm{O}\to 4\alpha\) at the energy of 3.65 GeV per nucleon in the nuclear emulsion. The identification becomes possible through reconstructing the invariant mass from measurements of emission angles in the approximation of conservation of momentum per nucleon of the parent nucleus. The contribution of the decays \({}^{12}\) C(0 \({}^{+}_{2}\) ) and \({}^{12}\) C(3 \({}^{-}\) ) to the dissociation \({}^{12}\textrm{C}\to 3\alpha\) is 11 and 19 \(\%\) , and in \({}^{16}\textrm{O}\to 4\alpha\) it is 20 and 30 \(\%\) , correspondingly.