Improved direct measurement of low-energy resonances in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mmultiscripts> <mml:mi>Ne</mml:mi> <mml:mprescripts/> <mml:none/> <mml:mn>21</mml:mn> </mml:mmultiscripts> <mml:mo>(

In the nova temperature range, 0.1 GK <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"> <a:mrow> <a:mo>&lt;</a:mo> <a:mi>T</a:mi> <a:mo>&lt;</a:mo> </a:mrow> </a:math> 0.4 GK, several low-energy resonances dominate the <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"> <b:mrow> <b:mmultiscripts> <b:mi>Ne</b:mi> <b:mprescripts/> <b:none/> <b:mn>21</b:mn> </b:mmultiscripts> <b:mo>(</b:mo> <b:mi>p</b:mi> <b:mo>,</b:mo> <b:mi>γ</b:mi> <b:mo>)</b:mo> <b:mmultiscripts> <b:mi>Na</b:mi> <b:mprescripts/> <b:none/> <b:mn>22</b:mn> </b:mmultiscripts> </b:mrow> </b:math> reaction rate, which is currently affected by large uncertainties. We present a high-precision study of the resonances at <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"> <c:mrow> <c:msubsup> <c:mi>E</c:mi> <c:mi mathvariant="normal">r</c:mi> <c:mi>lab</c:mi> </c:msubsup> <c:mo>=</c:mo> <c:mn>127.3</c:mn> </c:mrow> </c:math> , 271.4, 272.3, 291.5, and 352.6 keV, measured directly at the Laboratory for Underground Nuclear Astrophysics in Italy. The strengths of the 127.3-, 271.4-, and 291.5-keV resonances are consistent with previous measurements within <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"> <e:mrow> <e:mn>1</e:mn> <e:mi>σ</e:mi> </e:mrow> </e:math> . However, for the 272.3- and 352.6-keV resonances, we report strength values of (129.9 <f:math xmlns:f="http://www.w3.org/1998/Math/MathML"> <f:mo>±</f:mo> </f:math> 5.8) meV and (14.9 <g:math xmlns:g="http://www.w3.org/1998/Math/MathML"> <g:mo>±</g:mo> </g:math> 0.8) meV, respectively, more than a factor of 1.5 higher than literature values. In addition, we report on new branching ratios for the 127.3-, 272.3-, and 352.6-keV resonances, leading to updated decay schemes. Finally, we present a revised thermonuclear reaction rate and investigate its impact on the NeNa nucleosynthesis.

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Publication Details

Journal
Physical review. C
Published
2025-08-27
DOI
https://doi.org/10.1103/vqt1-jxpw
Citations
1
Primary Topic
Nuclear physics research studies
Type
article
Field-Weighted Citation Impact
1.87
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article

Improved direct measurement of low-energy resonances in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mmultiscripts> <mml:mi>Ne</mml:mi> <mml:mprescripts/> <mml:none/> <mml:mn>21</mml:mn> </mml:mmultiscripts> <mml:mo>(

F. Ferraro, G. Gervino, L. Csedreki, C. Gustavino et al.
1 citations
Physical review. C
Nuclear physics research studies
1.87
article

Improved direct measurement of low-energy resonances in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mmultiscripts> <mml:mi>Ne</mml:mi> <mml:mprescripts/> <mml:none/> <mml:mn>21</mml:mn> </mml:mmultiscripts> <mml:mo>(

F. Ferraro, G. Gervino, L. Csedreki, C. Gustavino, D. Mercogliano, Christian Baron, R. S. Sidhu, A. Boeltzig, T. Davinson, S. Zavatarelli, P. Colombetti, D. Rapagnani, Alessandro Compagnucci, P. Corvisiero, R. Menegazzo, Z. Elekes, D. Piatti, R. Sariyal, S. Turkat, C. Ananna, M. Junker, G. F. Ciani, O. Straniero, D. Bemmerer, J. Marsh, T. Chillery, Jane Jones, Fausto Casaburo, G. Gosta, Maria Lugaro, G. Imbriani, T. Szücs, D. Robb, E. Masha, P. Prati, Andreas Best, F. Cavanna, C. Broggini, A. Caciolli, Antonino Di Leva, Gy. Gyürky, J. Skowronski, Paola Marigo, A. Guglielmetti, A. Formicola, M. Aliotta, Matteo Campostrini, C. G. Bruno, Zsolt Fülöp, Riccardo Maria Gesuè, J. José, R. Depalo, L. Barbieri, M. Rossi, V. Rigato, F. Barile, A. D'Ottavi, R. Biasissi, R. Bonnell, M. Vagnoni
article en
1 citations

Abstract

In the nova temperature range, 0.1 GK <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"> <a:mrow> <a:mo>&lt;</a:mo> <a:mi>T</a:mi> <a:mo>&lt;</a:mo> </a:mrow> </a:math> 0.4 GK, several low-energy resonances dominate the <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"> <b:mrow> <b:mmultiscripts> <b:mi>Ne</b:mi> <b:mprescripts/> <b:none/> <b:mn>21</b:mn> </b:mmultiscripts> <b:mo>(</b:mo> <b:mi>p</b:mi> <b:mo>,</b:mo> <b:mi>γ</b:mi> <b:mo>)</b:mo> <b:mmultiscripts> <b:mi>Na</b:mi> <b:mprescripts/> <b:none/> <b:mn>22</b:mn> </b:mmultiscripts> </b:mrow> </b:math> reaction rate, which is currently affected by large uncertainties. We present a high-precision study of the resonances at <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"> <c:mrow> <c:msubsup> <c:mi>E</c:mi> <c:mi mathvariant="normal">r</c:mi> <c:mi>lab</c:mi> </c:msubsup> <c:mo>=</c:mo> <c:mn>127.3</c:mn> </c:mrow> </c:math> , 271.4, 272.3, 291.5, and 352.6 keV, measured directly at the Laboratory for Underground Nuclear Astrophysics in Italy. The strengths of the 127.3-, 271.4-, and 291.5-keV resonances are consistent with previous measurements within <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"> <e:mrow> <e:mn>1</e:mn> <e:mi>σ</e:mi> </e:mrow> </e:math> . However, for the 272.3- and 352.6-keV resonances, we report strength values of (129.9 <f:math xmlns:f="http://www.w3.org/1998/Math/MathML"> <f:mo>±</f:mo> </f:math> 5.8) meV and (14.9 <g:math xmlns:g="http://www.w3.org/1998/Math/MathML"> <g:mo>±</g:mo> </g:math> 0.8) meV, respectively, more than a factor of 1.5 higher than literature values. In addition, we report on new branching ratios for the 127.3-, 272.3-, and 352.6-keV resonances, leading to updated decay schemes. Finally, we present a revised thermonuclear reaction rate and investigate its impact on the NeNa nucleosynthesis.

Physical review. CVol. 112(5)
University of Debrecen (HU), University of Padua (IT), Istituto Nazionale di Fisica Nucleare (IT), University of Milan (IT), HUN-REN Institute for Nuclear Research (HU), Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso (IT), Helmholtz-Zentrum Dresden-Rossendorf (DE), Konkoly Observatory (HU), University of Surrey (GB), Institut d'Estudis Espacials de Catalunya (ES), Istituto Nazionale di Fisica Nucleare, Sezione di Torino (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Padova (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Napoli (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Bari (IT), Collurania Teramo Observatory (IT), Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Genova (IT), University of Campania "Luigi Vanvitelli" (IT), Azienda Ospedaliera Universitaria Università degli Studi della Campania Luigi Vanvitelli (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (IT), Gran Sasso Science Institute (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Roma I (IT), University of Turin (IT), University of Bari Aldo Moro (IT), University of Naples Federico II (IT), University of Genoa (IT), Universitat Politècnica de Catalunya (ES), University of Edinburgh (GB)
Openalex Percentile: Top 11%
Nuclear physics research studies
1.87
DOIOpen Access PDFOpenAlex
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