Figure 1

Typical $\gamma$-singles spectrum of the ${}^{89}$Y($p,\gamma$)${}^{90}$Zr reaction taken at $E_p=3$ MeV and at an angle $\theta ={90}^{\circ }$ to the beam axis. The secondary $\gamma$ rays feeding the ground state are labeled with numbers corresponding to their energies (in MeV) followed by a number in brackets indicating the level listing according to the compilation of Firestone et al. [9]. The primary $\gamma$ rays are indicated as ${\gamma }_x$, where $x$ is the $x$th excited state according to the same level listing. Secondary $\gamma$ transitions between discrete excited states are labeled with a star. Transitions to the first excited ($J^{\pi }=0^{+}$) level are marked with “X”. Parentheses indicate possible assignments. Peaks arising from reactions occurring at the beam collimators (${}^{27}$Al, ${}^{28}$Si) or in the target (${}^{17}$F) and backing material (${}^{11}$B, ${}^{19}$F, ${}^{12}$C, ${}^{16}$O, ${}^{20}$Ne) are explained in the text. Transitions marked with open circles are “background” peaks of unknown origin.Reuse & Permissions

Figure 2

Typical $\gamma$-singles spectra arising from the ${}^{\text{nat}}$Sb($p,\gamma$)${}^{122,124}$Te reactions taken at $E_p=3$ MeV and at an angle $\theta ={90}^{\circ }$ to the beam. Panels (c) and (d) belong to the same spectrum taken with a “low gain” (see in the text). The black arrows indicate where the ${\gamma }_0$ transitions of the reactions in consideration should appear. Panels (a) and (b) indicate the $\gamma$-singles spectrum taken with a “high gain.” The peak labeled with ${}^{137}$Cs is the 662-keV $\gamma$ transition of a ${}^{137}$Cs source used as “clock” during the measurements with the ${}^{\text{nat}}$Sb target to check the dead time. Transitions marked with “X” or an asterisk stem from ${}^{121}$Sb and ${}^{123}$Sb, respectively. Peaks arising from reactions occurring at the beam collimators (${}^{27}$Al, ${}^{28}$Si) or in the backing material (${}^{181}$Ta, ${}^{24}$Mg, ${}^{23}$Na, ${}^{20}$Ne, ${}^{19}$F, ${}^{16}$O, ${}^{12}$C, and ${}^{11}$B) are explained in the text. Open circles indicate “background” peaks of unknown origin observed in various ($p,\gamma$) measurements of the present systematics.Reuse & Permissions

Figure 3

Typical angle-integrated $\gamma$-singles spectrum measured for the ${}^{89}$Y($p,\gamma$)${}^{90}$Zr reaction at $E_p=3$ MeV with a 4$\pi$ $\gamma$-summing NaI(Tl) detector. The various peaks are explained in the text.Reuse & Permissions

Figure 4

Decay scheme of ${}^{90}$Zr observed in the present work at $E_{\mathrm{p}}=3$ MeV. The $\gamma$ transitions taken into account to determine the cross section of the ${}^{89}$Y($p,\gamma$)${}^{90}$Zr reaction are indicated with black arrows (see also text).Reuse & Permissions

Figure 5

Some typical angular distributions of $\gamma$ transitions depopulating excited levels in the ${}^{90}$Zr nucleus. The primaries from the entry level to the ground and first excited states, ${\gamma }_0$ and ${\gamma }_1$, respectively, are shown in the upper parts of the figure. Angular distributions plotted with open circles belong to $\gamma$ rays feeding the first excited state, whereas those shown with filled ones to $\gamma$ transitions populating the ground state (see also text).Reuse & Permissions

Figure 6

Angular distributions of the 2${}_1^{+}\to 0_1^{+}$ $\gamma$ transitions of the ${}^{122}$Te (left panels) and ${}^{124}$Te (right panels) measured in the present work. The corresponding proton-beam energies $E_{\mathrm{p}}$ are also indicated.Reuse & Permissions

Figure 7

Screening-corrected cross sections for the ${}^{89}$Y($p,\gamma$)${}^{90}$Zr reaction from [4] (open squares), $\gamma$-angular distribution measurements (open circles), and the 4$\pi$ $\gamma$-summing method (solid circles). The total cross sections are compared in the top panel. The cross sections ${\sigma }_1$ and ${\sigma }_3$ for the production of ${}^{90}$Zr and subsequent decay to its first and third excited states, respectively, are plotted in the middle and the bottom panels.Reuse & Permissions

Figure 8

The measured cross sections (circles and boxes) of the ${}^{89}$Y($p,\gamma$)${}^{90}$Zr reaction are compared with talys calculations (curves) using two different OPs (top panel), different NLDs (middle panel), and different $\gamma$SFs (bottom panel). See text for more details.Reuse & Permissions

Figure 9

Same as in Fig. 8 but for the ${}^{121}$Sb($p,\gamma$)${}^{122}$Te reaction. See text for more details.Reuse & Permissions

Figure 10

Same as in Fig. 8 but for the ${}^{123}$Sb($p,\gamma$)${}^{124}$Te reaction. See text for more details.Reuse & Permissions

Figure 11

Comparison of the measured cross sections (circles and boxes) of the ${}^{89}$Y($p,\gamma$)${}^{90}$Zr reaction with the three different talys calculations talys-1, talys-2, talys-3 (curves) (see text for details). Also plotted are the cross sections for the ($p,n$) channel reported in Refs. [31, 32].Reuse & Permissions

Figure 12

Same as in Fig. 11 but for the ${}^{121}$Sb($p,\gamma$)${}^{122}$Te (top panel) and ${}^{123}$Sb($p,\gamma$)${}^{124}$Te (bottom panel) reactions (see text for details).Reuse & Permissions

Figure 13

Comparison of the measured astrophysical $S$ factors (open or solid circles and open squares) of the (a) ${}^{89}$Y($p,\gamma$)${}^{90}$Zr, (b) ${}^{121}$Sb($p,\gamma$)${}^{122}$Te, and (c) ${}^{123}$Sb($p,\gamma$)${}^{124}$Te reactions with the three different talys calculations (curves) talys-1, talys-2, and talys-3 (see text for details).Reuse & Permissions

Figure 14

Same as in Fig. 13 but for the ground-state RRs.Reuse & Permissions

Figure 15

Ratios of the upper and lower calculated RRs over the best combination talys-1 for the ${}^{89}$Y($p,\gamma$)${}^{90}$Zr reaction (left panel), talys-3 for the reaction ${}^{121}$Sb($p,\gamma$)${}^{122}$Te (middle panel), and talys-3 for the ${}^{123}$Sb($p,\gamma$)${}^{124}$Te (right panel) (see text for details).Reuse & Permissions

Figure 16

Comparison of the isomeric cross section ratios ${\sigma }_{1761}/{\sigma }_0$ and ${\sigma }_{2319}/{\sigma }_0$ (circles) of the ${}^{89}$Y($p,\gamma$)${}^{90}$Zr with the three different talys calculations (curves) talys-1, talys-2, talys-3 (see text for details).Reuse & Permissions

Figure 17

Comparison of the isomeric cross section ratio ${\sigma }_m/({\sigma }_g+{\sigma }_m)$ (circles) of the ${}^{89}$Y($p,n$)${}^{89}$Zr reaction [35] with the three different talys calculations (curves) talys-1, talys-2, talys-3 (see text for details).Reuse & Permissions

Figure 18

Comparison of the isomeric cross section ratio ${\sigma }_m/{\sigma }_g$ (circles) of the ${}^{121}$Sb($p,n$)${}^{121}$Te and ${}^{123}$Sb($p,n$)${}^{123}$Te reactions [33, 34] with the three different talys calculations (curves) talys-1, talys-2, talys-3 (see text for details).Reuse & Permissions