A high energy resolution gas target setup to study selected NeNa cycle reactions

E Masha; F. Casaburo; Ragandeep Singh Sidhu; M. Aliotta; C. Ananna; Lucia Barbieri; F Barile; D Bemmerer; A Best; A Boeltzig; C Broggini; C. G. Bruno; A Caciolli; M. Campostrini; F Cavanna; G F  Ciani; P Colombetti; A. Compagnucci; P Corvisiero; L. Csedreki; T. Davinson; R Depalo; D. Dell'Aquila; A Di Leva; Z Elekes; F Ferraro; A Formicola; Zs Fulop; G Gervino; R M Gesue; A Guglielmetti; C Gustavino; Gy Gyurky; G Imbriani; M Junker; M Lugaro; P Marigo; J. Marsh; R Menegazzo; D Mercogliano; V Paticchio; D Piatti; P Prati; D. Rapagnani; V. Rigato; D. Robb; L Schiavulli; J. Skowronski; O Straniero; T Szucs; S Zavatarelli

doi:10.1140/epja/s10050-025-01512-w

A high energy resolution gas target setup to study selected NeNa cycle reactions

E Masha, F. Casaburo, Ragandeep Singh Sidhu, M. Aliotta, C. Ananna, Lucia Barbieri, F Barile, D Bemmerer, A Best, A Boeltzig, C Broggini, C. G. Bruno, A Caciolli, M. Campostrini, F Cavanna^*, G F Ciani, P Colombetti, A. Compagnucci, P Corvisiero, L. CsedrekiT. Davinson, R Depalo, D. Dell'Aquila, A Di Leva, Z Elekes, F Ferraro, A Formicola, Zs Fulop, G Gervino, R M Gesue, A Guglielmetti, C Gustavino, Gy Gyurky, G Imbriani, M Junker, M Lugaro, P Marigo, J. Marsh, R Menegazzo, D Mercogliano, V Paticchio, D Piatti, P Prati, D. Rapagnani, V. Rigato, D. Robb, L Schiavulli, J. Skowronski, O Straniero, T Szucs, S Zavatarelli^*

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

The neon-sodium cycle of hydrogen burning occurs in several astrophysical sites, such as asymptotic giant branch stars and novae, affecting the production of neon and sodium isotopes. To enhance the accuracy of predicted nucleosynthesis yields, there is a pressing need for
new experimental investigations of the cross sections of the reactions involved in this cycle at energies relevant to astrophysics. The 400 kV accelerator at the Laboratory for Underground Nuclear Astrophysics (LUNA) provides a unique advantage relative to above-ground laboratories thanks to its
deep underground location within the Gran Sasso National Laboratory (INFN-LNGS) in Italy. We performed experiments at LUNA on two of the reactions of the NeNa cycle: 20Ne(p,γ )21Na and 21Ne(p,γ )22Na using a high-purity gas target system for isotopically enriched gases coupled with
two high-resolution germanium detectors, surrounded by copper and lead shielding to further reduce the natural background at LUNA. We describe the detailed characterization of the experimental setup performed through Monte Carlo simulations, and the method for the precise determination of resonance energies, giving improved values of Er = 127.3 ±0.5 keV, 271.4 ± 0.4 keV, 272.3 ± 0.4 keV, 291.5 ± 0.5 keV and 352.6 ± 0.4 keV. Additionally, decay branching ratios for the Ex = 7016.4 keV excited state in 22Na, and three new transitions (R → 4770 keV, R → 3059.4 keV and
R → 583.05 keV) in the Er = 291.5 keV resonance, are also reported.

Original language	English
Article number	61
Pages (from-to)	1-9
Number of pages	9
Journal	The European Physical Journal A (EPJ A)
Volume	45
DOIs	https://doi.org/10.1140/epja/s10050-025-01512-w
Publication status	Published - 8 Mar 2025

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10.1140/epja/s10050-025-01512-w

LC19565_Masha_correxted100Accepted author manuscript, 363 KBLicence: Creative Commons: Attribution (CC-BY)

Edinburgh Nuclear Physics Group Consolidated Grant Proposal
Woods, P. (Principal Investigator), Aliotta, M. (Co-investigator), Lederer-Woods, C. (Co-investigator), Murphy, A. (Co-investigator) & Watts, D. (Co-investigator)
STFC
1/10/17 → 30/09/21
Project: Research

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Masha, E., Casaburo, F., Sidhu, R. S., Aliotta, M., Ananna, C., Barbieri, L., Barile, F., Bemmerer, D., Best, A., Boeltzig, A., Broggini, C., Bruno, C. G., Caciolli, A., Campostrini, M., Cavanna, F., Ciani, G. F., Colombetti, P., Compagnucci, A., Corvisiero, P., ... Zavatarelli, S. (2025). A high energy resolution gas target setup to study selected NeNa cycle reactions. The European Physical Journal A (EPJ A), 45, 1-9. Article 61. https://doi.org/10.1140/epja/s10050-025-01512-w

@article{9226f6a260624457b023eea80abba6c4,

title = "A high energy resolution gas target setup to study selected NeNa cycle reactions",

abstract = " The neon-sodium cycle of hydrogen burning occurs in several astrophysical sites, such as asymptotic giant branch stars and novae, affecting the production of neon and sodium isotopes. To enhance the accuracy of predicted nucleosynthesis yields, there is a pressing need fornew experimental investigations of the cross sections of the reactions involved in this cycle at energies relevant to astrophysics. The 400 kV accelerator at the Laboratory for Underground Nuclear Astrophysics (LUNA) provides a unique advantage relative to above-ground laboratories thanks to itsdeep underground location within the Gran Sasso National Laboratory (INFN-LNGS) in Italy. We performed experiments at LUNA on two of the reactions of the NeNa cycle: 20Ne(p,γ )21Na and 21Ne(p,γ )22Na using a high-purity gas target system for isotopically enriched gases coupled withtwo high-resolution germanium detectors, surrounded by copper and lead shielding to further reduce the natural background at LUNA. We describe the detailed characterization of the experimental setup performed through Monte Carlo simulations, and the method for the precise determination of resonance energies, giving improved values of Er = 127.3 ±0.5 keV, 271.4 ± 0.4 keV, 272.3 ± 0.4 keV, 291.5 ± 0.5 keV and 352.6 ± 0.4 keV. Additionally, decay branching ratios for the Ex = 7016.4 keV excited state in 22Na, and three new transitions (R → 4770 keV, R → 3059.4 keV andR → 583.05 keV) in the Er = 291.5 keV resonance, are also reported.",

author = "E Masha and F. Casaburo and Sidhu, {Ragandeep Singh} and M. Aliotta and C. Ananna and Lucia Barbieri and F Barile and D Bemmerer and A Best and A Boeltzig and C Broggini and Bruno, {C. G.} and A Caciolli and M. Campostrini and F Cavanna and Ciani, {G F} and P Colombetti and A. Compagnucci and P Corvisiero and L. Csedreki and T. Davinson and R Depalo and D. Dell'Aquila and {Di Leva}, A and Z Elekes and F Ferraro and A Formicola and Zs Fulop and G Gervino and Gesue, {R M} and A Guglielmetti and C Gustavino and Gy Gyurky and G Imbriani and M Junker and M Lugaro and P Marigo and J. Marsh and R Menegazzo and D Mercogliano and V Paticchio and D Piatti and P Prati and D. Rapagnani and V. Rigato and D. Robb and L Schiavulli and J. Skowronski and O Straniero and T Szucs and S Zavatarelli",

year = "2025",

month = mar,

day = "8",

doi = "10.1140/epja/s10050-025-01512-w",

language = "English",

volume = "45",

pages = "1--9",

journal = "The European Physical Journal A (EPJ A)",

issn = "1434-6001",

publisher = "Springer",

}

Masha, E, Casaburo, F, Sidhu, RS , Aliotta, M, Ananna, C, Barbieri, L, Barile, F, Bemmerer, D, Best, A, Boeltzig, A, Broggini, C, Bruno, CG, Caciolli, A, Campostrini, M, Cavanna, F, Ciani, GF, Colombetti, P, Compagnucci, A, Corvisiero, P, Csedreki, L, Davinson, T, Depalo, R, Dell'Aquila, D, Di Leva, A, Elekes, Z, Ferraro, F, Formicola, A, Fulop, Z, Gervino, G, Gesue, RM, Guglielmetti, A, Gustavino, C, Gyurky, G, Imbriani, G, Junker, M, Lugaro, M, Marigo, P, Marsh, J, Menegazzo, R, Mercogliano, D, Paticchio, V, Piatti, D, Prati, P, Rapagnani, D, Rigato, V, Robb, D, Schiavulli, L, Skowronski, J, Straniero, O, Szucs, T & Zavatarelli, S 2025, 'A high energy resolution gas target setup to study selected NeNa cycle reactions', The European Physical Journal A (EPJ A), vol. 45, 61, pp. 1-9. https://doi.org/10.1140/epja/s10050-025-01512-w

TY - JOUR

T1 - A high energy resolution gas target setup to study selected NeNa cycle reactions

AU - Masha, E

AU - Casaburo, F.

AU - Sidhu, Ragandeep Singh

AU - Aliotta, M.

AU - Ananna, C.

AU - Barbieri, Lucia

AU - Barile, F

AU - Bemmerer, D

AU - Best, A

AU - Boeltzig, A

AU - Broggini, C

AU - Bruno, C. G.

AU - Caciolli, A

AU - Campostrini, M.

AU - Cavanna, F

AU - Ciani, G F

AU - Colombetti, P

AU - Compagnucci, A.

AU - Corvisiero, P

AU - Csedreki, L.

AU - Davinson, T.

AU - Depalo, R

AU - Dell'Aquila, D.

AU - Di Leva, A

AU - Elekes, Z

AU - Ferraro, F

AU - Formicola, A

AU - Fulop, Zs

AU - Gervino, G

AU - Gesue, R M

AU - Guglielmetti, A

AU - Gustavino, C

AU - Gyurky, Gy

AU - Imbriani, G

AU - Junker, M

AU - Lugaro, M

AU - Marigo, P

AU - Marsh, J.

AU - Menegazzo, R

AU - Mercogliano, D

AU - Paticchio, V

AU - Piatti, D

AU - Prati, P

AU - Rapagnani, D.

AU - Rigato, V.

AU - Robb, D.

AU - Schiavulli, L

AU - Skowronski, J.

AU - Straniero, O

AU - Szucs, T

AU - Zavatarelli, S

PY - 2025/3/8

Y1 - 2025/3/8

N2 - The neon-sodium cycle of hydrogen burning occurs in several astrophysical sites, such as asymptotic giant branch stars and novae, affecting the production of neon and sodium isotopes. To enhance the accuracy of predicted nucleosynthesis yields, there is a pressing need fornew experimental investigations of the cross sections of the reactions involved in this cycle at energies relevant to astrophysics. The 400 kV accelerator at the Laboratory for Underground Nuclear Astrophysics (LUNA) provides a unique advantage relative to above-ground laboratories thanks to itsdeep underground location within the Gran Sasso National Laboratory (INFN-LNGS) in Italy. We performed experiments at LUNA on two of the reactions of the NeNa cycle: 20Ne(p,γ )21Na and 21Ne(p,γ )22Na using a high-purity gas target system for isotopically enriched gases coupled withtwo high-resolution germanium detectors, surrounded by copper and lead shielding to further reduce the natural background at LUNA. We describe the detailed characterization of the experimental setup performed through Monte Carlo simulations, and the method for the precise determination of resonance energies, giving improved values of Er = 127.3 ±0.5 keV, 271.4 ± 0.4 keV, 272.3 ± 0.4 keV, 291.5 ± 0.5 keV and 352.6 ± 0.4 keV. Additionally, decay branching ratios for the Ex = 7016.4 keV excited state in 22Na, and three new transitions (R → 4770 keV, R → 3059.4 keV andR → 583.05 keV) in the Er = 291.5 keV resonance, are also reported.

AB - The neon-sodium cycle of hydrogen burning occurs in several astrophysical sites, such as asymptotic giant branch stars and novae, affecting the production of neon and sodium isotopes. To enhance the accuracy of predicted nucleosynthesis yields, there is a pressing need fornew experimental investigations of the cross sections of the reactions involved in this cycle at energies relevant to astrophysics. The 400 kV accelerator at the Laboratory for Underground Nuclear Astrophysics (LUNA) provides a unique advantage relative to above-ground laboratories thanks to itsdeep underground location within the Gran Sasso National Laboratory (INFN-LNGS) in Italy. We performed experiments at LUNA on two of the reactions of the NeNa cycle: 20Ne(p,γ )21Na and 21Ne(p,γ )22Na using a high-purity gas target system for isotopically enriched gases coupled withtwo high-resolution germanium detectors, surrounded by copper and lead shielding to further reduce the natural background at LUNA. We describe the detailed characterization of the experimental setup performed through Monte Carlo simulations, and the method for the precise determination of resonance energies, giving improved values of Er = 127.3 ±0.5 keV, 271.4 ± 0.4 keV, 272.3 ± 0.4 keV, 291.5 ± 0.5 keV and 352.6 ± 0.4 keV. Additionally, decay branching ratios for the Ex = 7016.4 keV excited state in 22Na, and three new transitions (R → 4770 keV, R → 3059.4 keV andR → 583.05 keV) in the Er = 291.5 keV resonance, are also reported.

U2 - 10.1140/epja/s10050-025-01512-w

DO - 10.1140/epja/s10050-025-01512-w

M3 - Article

SN - 1434-6001

VL - 45

SP - 1

EP - 9

JO - The European Physical Journal A (EPJ A)

JF - The European Physical Journal A (EPJ A)

M1 - 61

ER -

A high energy resolution gas target setup to study selected NeNa cycle reactions

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Edinburgh Nuclear Physics Group Consolidated Grant Proposal

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