New energy for the 133-keV resonance in the 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Na</mml:mi><mml:mprescripts /><mml:none /><mml:mn>23</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi mathvariant="normal">p</mml:mi><mml:mo>,</mml:mo><mml:mi>γ</mml:mi><mml:mo>)</mml:mo><mml:mmultiscripts><mml:mi>Mg</mml:mi><mml:mprescripts /><mml:none /><mml:mn>24</mml:mn></mml:mmultiscripts></mml:mrow></mml:math>
 reaction and its impact on nucleosynthesis in gl

Marshall, C.; Setoodehnia, Kiana; Portillo, Federico; Kelley, J. H.; Longland, R.

doi:10.1103/physrevc.104.l032801

Cited by 8 publications

(4 citation statements)

References 42 publications

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“…The authors suggest that this could also have an impact on the (p, γ) channel reaction rate. Moreover, the higher lying resonance around 170 keV, which has a contribution only for the (p, α) channel, was slightly moved from 169.5 to 168.1 keV center-of-mass energy by Marshall et al (2023). Considering the very low upper limit to the E c.m.…”

Section: Na(pα) 20 Nementioning

confidence: 96%

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Recent results and future perspectives with solid targets at LUNA

Ananna,

Barbieri,

Boeltzig

et al. 2024

Front. Astron. Space Sci.

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The stellar evolution and chemical make-up of the Universe are determined by nuclear reactions occurring in a wide variety of stellar sites. Precise determinations of the cross sections of these reactions are crucial for the calculation of reaction rates and for the development of stellar evolution models. The Laboratory for Underground Nuclear Astrophysics (LUNA) collaboration has been at the forefront of the direct measurement of nuclear reactions at the low energies of astrophysical interest for the last 35 years. The many significant results achieved at LUNA have been made possible due to the low background conditions uniquely available thanks to its location deep underground at the Laboratori Nazionali del Gran Sasso. Another key aspect of these successes is due to the experience of the LUNA collaboration in the production and characterization of a variety of solid targets used in reaction measurements. In this review, the main production techniques of solid targets are described, as well as the common methods adopted for target degradation monitoring. We also present the results of recent measurements using these targets and the future plans of the LUNA collaboration for measurements using solid targets at the LUNA400 kV and the new Ion Beam Facility (IBF) 3.5 MV are also presented.

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Section: Na(pα) 20 Nementioning

confidence: 96%

“…Indeed, the Boeltzig et al (2019) measurement of ωγ for the (p, γ) channel suggests values of I p = 2 or 3. Recent work by Marshall et al (2023) has found a different energy for the excited state involved in the resonant capture, thus shifting the energy of the resonance in the center of mass from E c.m. = 138 keV down to 133 keV.…”

Section: Na(pα) 20 Nementioning

confidence: 99%

Recent results and future perspectives with solid targets at LUNA

Ananna,

Barbieri,

Boeltzig

et al. 2024

Front. Astron. Space Sci.

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“…GODDESS) [416,417], the Trojan Horse reaction Method [114], the asymptotic normalization coefficient method [418], elastic scattering [419,420], Coulomb breakup [255,421], constraints on statistical nuclear properties (e.g. with ( 3 He, n) neutron time-offlight measurements at Ohio University and the University of Notre Dame) [422,423], as well as charged-particle spectroscopy with high-resolution charged particle detector arrays [424,425] and the recently refurbished split-pole spectrographs at TUNL [426,427], Florida State University [428], and University of Notre Dame [429].…”

Section: How Did We Get Here?mentioning

confidence: 99%

Horizons: nuclear astrophysics in the 2020s and beyond

Schatz

Reyes

Best

et al. 2022

J. Phys. G: Nucl. Part. Phys.

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Nuclear astrophysics is a field at the intersection of nuclear physics and astrophysics, which seeks to understand the nuclear engines of astronomical objects and the origin of the chemical elements. This white paper summarizes progress and status of the field, the new open questions that have emerged, and the tremendous scientific opportunities that have opened up with major advances in capabilities across an ever growing number of disciplines and subfields that need to be integrated. We take a holistic view of the field discussing the unique challenges and opportunities in nuclear astrophysics in regards to science, diversity, education, and the interdisciplinarity and breadth of the field. Clearly nuclear astrophysics is a dynamic field with a bright future that is entering a new era of discovery opportunities.

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“…A recent measurement by Marshall et al [90] revised the resonance energy, with a consequent reduction of the reaction rate up to a factor of 2 around 70 MK. Current experimental efforts at TUNL aim to further reduce the uncertainty of this energy determination.…”

Section: Mgmentioning

confidence: 99%

Underground Measurements of Nuclear Reaction Cross-Sections Relevant to AGB Stars

et al. 2021

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Nuclear reaction cross sections are essential ingredients to predict the evolution of AGB stars and understand their impact on the chemical evolution of our Galaxy. Unfortunately, the cross sections of the reactions involved are often very small and challenging to measure in laboratories on Earth. In this context, major steps forward were made with the advent of underground nuclear astrophysics, pioneered by the Laboratory for Underground Nuclear Astrophysics (LUNA). The present paper reviews the contribution of LUNA to our understanding of the evolution of AGB stars and related nucleosynthesis.

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New energy for the 133-keV resonance in the Na23(p,γ)Mg24 reaction and its impact on nucleosynthesis in gl

Cited by 8 publications

References 42 publications

Recent results and future perspectives with solid targets at LUNA

Recent results and future perspectives with solid targets at LUNA

Horizons: nuclear astrophysics in the 2020s and beyond

Underground Measurements of Nuclear Reaction Cross-Sections Relevant to AGB Stars

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