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The cross-section measurement of $^{144}$Sm(p, $\gamma$)$^{145}$Eu(T$_{1/2}=$5.93(4) days) reaction has been performed at proton energies around2.6, 3.1, 3.7, 4.1, 4.2, 4.7, 5.1, 5.5, 5.9, 6.4, 6.8 MeV using the activationtechnique. These energies correspond to the Gamow window for 3, 4 GK and apartial portion for 2 GK. $^{144}$Sm has been chosen for the present studybecause of its significantly higher abundance compared to the other neighboring$p$-nuclides (Z $>$ 50). The astrophysical $S-$factor of this reaction has beenmeasured for the first time at E$^{cm}_p=$ 2.57$\pm$0.13 MeV, $S-$factor$=$2.542$\pm$1.152($\times$10$^{10}$) MeV-b. Cross-section data werecompared with the previously measured experimental data from literature and thetheoretical predictions obtained using Hauser-Feshbach statistical model codesTALYS 1.96 and NON-SMOKER. A satisfactory agreement between experimental dataand theoretical results was observed. Molecular deposition technique was usedto prepare the $^{144}$Sm targets having thickness between 100$-$350$\mu$g/cm$^2$ on Al backing. Obtained results were utilized to predict thereaction rates for $^{144}$Sm (p, $\gamma$) and $^{145}$Eu ($\gamma$, p)reactions using TALYS 1.96 and the reciprocity theorem.

Measurement of $^{144}$Sm(p,$\gamma$) cross-section at Gamow energies