Experimental cross-section of <sup>144</sup>Sm(p,<i>γ</i>) reaction relevant to astrophysical p-process

The cross sections of 144 Sm(p,y) 145 Eu (T 1/2 =5.93(4) days) reaction have been measured in the astrophysically important energy regime 4.2 - 6.8 MeV using the activation technique. This energy span corresponds to the temperature range of about T 9 =3 to T 9 =4. The molecular deposition technique has been used to prepare 144 Sm 2 O 3 (67% pure) targets of thickness 100- 300 μ g/cm 2 on 25 μm pure aluminum (99.4%) backing. Copper foils were utilised for beam monitoring, and activated targets were investigated using a HPGe detector. The experimental cross sections have been compared to the theoretical predictions by Talys 1.95 with various level density models as well as previously measured data. Talys 1.95 calculation with microscopic level density values and the default optical potential model with γ -ray strength functions predicted measured data very well.

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Publication Details

Journal
EPJ Web of Conferences
Published
2025-01-01
DOI
https://doi.org/10.1051/epjconf/202532904003
Primary Topic
Nuclear physics research studies
Type
article
Field-Weighted Citation Impact
0.00

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article

Experimental cross-section of 144Sm(p,γ) reaction relevant to astrophysical p-process

Tanmoy Bar, Sukhendu Saha, J. Datta, Lalit Kumar Sahoo et al.
EPJ Web of Conferences
Nuclear physics research studies
article

Experimental cross-section of 144Sm(p,γ) reaction relevant to astrophysical p-process

Tanmoy Bar, Sukhendu Saha, J. Datta, Lalit Kumar Sahoo, Dipali Basak, Chinmay Basu, Sandipan Dasgupta
article en

Abstract

The cross sections of 144 Sm(p,y) 145 Eu (T 1/2 =5.93(4) days) reaction have been measured in the astrophysically important energy regime 4.2 - 6.8 MeV using the activation technique. This energy span corresponds to the temperature range of about T 9 =3 to T 9 =4. The molecular deposition technique has been used to prepare 144 Sm 2 O 3 (67% pure) targets of thickness 100- 300 μ g/cm 2 on 25 μm pure aluminum (99.4%) backing. Copper foils were utilised for beam monitoring, and activated targets were investigated using a HPGe detector. The experimental cross sections have been compared to the theoretical predictions by Talys 1.95 with various level density models as well as previously measured data. Talys 1.95 calculation with microscopic level density values and the default optical potential model with γ -ray strength functions predicted measured data very well.

EPJ Web of ConferencesVol. 329
Saha Institute of Nuclear Physics (IN), Homi Bhabha National Institute (IN)
Bhabha Atomic Research Centre, Nuclear Physics
Openalex Percentile: Top 93%
Nuclear physics research studies
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