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The reaction of triple radiative capture αα(n,γ)9Be studied in a β decay of 9Li

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Title: The reaction of triple radiative capture αα(n,γ)9Be studied in a β decay of 9Li
Authors: Mukha, I.1 Ivan.Mukha@fys.kuleuven.ac.be, Kavatsyuk, M.2,3, Algora, A.4,5, Batist, L.6, Blazhev, A.2,7, Döring, J.2, Grawe, H.2, Hellström, M.2, Kavatsyuk, O.2,3, Kirchner, R.2, La Commara, M.8, Mazzocchi, C.2, Plettner, C.9, Roeckl, E.2
Source: Nuclear Physics A. Jul2005, Vol. 758 Issue 1-4, p647-650. 4p.
Subjects: Radiative capture, Electromagnetic waves, Nuclear reactions, Spectrum analysis
Abstract: A new way of study the reaction of triple radiative capture αα(n,γ)9Be is demonstrated. At the GSI-ISOL facility, we have measured the γ decays of excited 1/2+, 5/2− and 1/2− states in 9Be, which are strongly populated in the β decay of 9Li. The respective partial γ-widths are of astrophysical interest in order to reliably estimate the αα(n,γ)9Be rates in SN type-II as a possible site of the synthesis of heavy elements in the Universe. The 9Li nuclei were implanted into a foil viewed by high-granularity arrays of β and γ detectors. The γ-ray spectra were measured in coincidence with the β-particles by selecting large β-γ angles in order to suppress the bremsstrahlung background. For the first time, the γ-rays from the 1/2+ and 5/2− states in 9Be were observed in 9Li decay, with the 1/2+-state energy and width measured to be 1689(10) and 224(7) keV, respectively, while the latter transition provided a reference point. The upper limit of the 1/2− partial γ-width is measured to be . An improved sensitivity experiment is feasible at facilities with the larger yield of 9Li. [Copyright &y& Elsevier]
Copyright of Nuclear Physics A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 18038033
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: The reaction of triple radiative capture αα(n,γ)<superscript>9</superscript>Be studied in a β decay of <superscript>9</superscript>Li
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  Data: <searchLink fieldCode="AR" term="%22Mukha%2C+I%2E%22">Mukha, I.</searchLink><relatesTo>1</relatesTo><i> Ivan.Mukha@fys.kuleuven.ac.be</i><br /><searchLink fieldCode="AR" term="%22Kavatsyuk%2C+M%2E%22">Kavatsyuk, M.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Algora%2C+A%2E%22">Algora, A.</searchLink><relatesTo>4,5</relatesTo><br /><searchLink fieldCode="AR" term="%22Batist%2C+L%2E%22">Batist, L.</searchLink><relatesTo>6</relatesTo><br /><searchLink fieldCode="AR" term="%22Blazhev%2C+A%2E%22">Blazhev, A.</searchLink><relatesTo>2,7</relatesTo><br /><searchLink fieldCode="AR" term="%22Döring%2C+J%2E%22">Döring, J.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Grawe%2C+H%2E%22">Grawe, H.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Hellström%2C+M%2E%22">Hellström, M.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kavatsyuk%2C+O%2E%22">Kavatsyuk, O.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Kirchner%2C+R%2E%22">Kirchner, R.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22La+Commara%2C+M%2E%22">La Commara, M.</searchLink><relatesTo>8</relatesTo><br /><searchLink fieldCode="AR" term="%22Mazzocchi%2C+C%2E%22">Mazzocchi, C.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Plettner%2C+C%2E%22">Plettner, C.</searchLink><relatesTo>9</relatesTo><br /><searchLink fieldCode="AR" term="%22Roeckl%2C+E%2E%22">Roeckl, E.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Nuclear+Physics+A%22">Nuclear Physics A</searchLink>. Jul2005, Vol. 758 Issue 1-4, p647-650. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Radiative+capture%22">Radiative capture</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+waves%22">Electromagnetic waves</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+reactions%22">Nuclear reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Spectrum+analysis%22">Spectrum analysis</searchLink>
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  Data: A new way of study the reaction of triple radiative capture αα(n,γ)9Be is demonstrated. At the GSI-ISOL facility, we have measured the γ decays of excited 1/2+, 5/2− and 1/2− states in 9Be, which are strongly populated in the β decay of 9Li. The respective partial γ-widths are of astrophysical interest in order to reliably estimate the αα(n,γ)9Be rates in SN type-II as a possible site of the synthesis of heavy elements in the Universe. The 9Li nuclei were implanted into a foil viewed by high-granularity arrays of β and γ detectors. The γ-ray spectra were measured in coincidence with the β-particles by selecting large β-γ angles in order to suppress the bremsstrahlung background. For the first time, the γ-rays from the 1/2+ and 5/2− states in 9Be were observed in 9Li decay, with the 1/2+-state energy and width measured to be 1689(10) and 224(7) keV, respectively, while the latter transition provided a reference point. The upper limit of the 1/2− partial γ-width is measured to be . An improved sensitivity experiment is feasible at facilities with the larger yield of 9Li. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Nuclear Physics A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.nuclphysa.2005.05.116
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        Text: English
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      – SubjectFull: Radiative capture
        Type: general
      – SubjectFull: Electromagnetic waves
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      – SubjectFull: Nuclear reactions
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      – SubjectFull: Spectrum analysis
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