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- W2321340887 abstract "Excitation energies, spins and lifetimes have been measured in $^{49}mathrm{V}$ employing the reaction $^{46}mathrm{Ti}(ensuremath{alpha}, pensuremath{gamma})^{49}mathrm{V}$ at a bombarding energy of 10.6 MeV. Reaction-produced protons were detected in an annular Si counter at an average angle of 171ifmmode^circelsetextdegreefi{}. Coincident $ensuremath{gamma}$-ray spectra were measured with a Ge(Li) detector at angles ${120}^{ifmmode^circelsetextdegreefi{}}ensuremath{ge}ensuremath{theta}ensuremath{ge}{0}^{ifmmode^circelsetextdegreefi{}}$. Two Ge(Li) detectors were used in a $ensuremath{gamma}ensuremath{-}ensuremath{gamma}$ coincidence experiment. The half-life of the 90.7 keV excited state, ${T}_{frac{1}{2}}=0.45(3)$ ns, was measured by time-delayed $nensuremath{-}ensuremath{gamma}$ coincidences employing the reaction $^{46}mathrm{Ti}(p, nensuremath{gamma})^{49}mathrm{V}$ at a proton bombarding energy of 2.1 MeV. The results obtained for excitation energies, spins, parities, and lifetimes (ps) are: 748.3, ${frac{3}{2}}^{+}$, > 5, 1000; 1021.6, ${frac{11}{2}}^{ensuremath{-}}$, ${6.3}_{ensuremath{-}2.5}^{+3.9}$; 1140.9, ${frac{5}{2}}^{+}$, ${1.8}_{ensuremath{-}0.5}^{+0.9}$; 1155.4, ${frac{9}{2}}^{ensuremath{-}}$, ${1.65}_{ensuremath{-}0.34}^{+0.48}$; 1514.4, ${frac{5}{2}}^{ensuremath{-}}$, ${0.045}_{ensuremath{-}0.018}^{+0.021}$; 1603.1, ${frac{7}{2}}^{+}$, ${0.68}_{ensuremath{-}0.18}^{+0.31}$; 1643.1, ${mathrm{textonehalf{}}}^{(ensuremath{-})}$, ${frac{3}{2}}^{(ensuremath{-})}$, ${frac{5}{2}}^{(ensuremath{-})}$, ${mathrm{textonehalf{}}}^{(+)}$, ${0.050}_{ensuremath{-}0.014}^{+0.017}$; 1646.4, ${mathrm{textonehalf{}}}^{(+)}$, ${frac{3}{2}}^{(+)}$, ${frac{5}{2}}^{(+)}$, > 7.5, 1000; 1661.4, ${frac{3}{2}}^{ensuremath{-}}$, 0.04; 1994.9, ${frac{3}{2}}^{+}$, ${1.34}_{ensuremath{-}0.43}^{+0.80}$; 2178.5, ${frac{9}{2}}^{+}$, ${0.80}_{ensuremath{-}0.40}^{+0.70}$; 2182.7, ${frac{7}{2}}^{ensuremath{-}}$, 0.08; 2235.3, ${frac{5}{2}}^{ensuremath{-}}$, 0.05; 2263.3, ${frac{15}{2}}^{ensuremath{-}}$, ${0.93}_{ensuremath{-}0.28}^{+0.55}$; 2265.2, ${frac{3}{2}}^{ensuremath{-}}$, 0.06; 2309.7, ${frac{3}{2}}^{ensuremath{-}}$, 0.07; 2353.3, ${frac{9}{2}}^{ensuremath{-}}$, 0.07; 2388.2, ${frac{5}{2}}^{+}$, ${0.09}_{ensuremath{-}0.02}^{+0.04}$; 2408.4, ${frac{7}{2}}^{ifmmodepmelsetextpmfi{}}$, ${frac{9}{2}}^{ensuremath{-}}$, ${frac{11}{2}}^{ensuremath{-}}$, 0.03; 2670.8, ${frac{9}{2}}^{ensuremath{-}}$, ${frac{11}{2}}^{ensuremath{-}}$, ${frac{13}{2}}^{ensuremath{-}}$, 0.03; 2727.8, ${frac{15}{2}}^{(ensuremath{-})}$, ${0.35}_{ensuremath{-}0.11}^{+0.15}$; 2741.1, ${frac{7}{2}}^{ensuremath{-}}$, ${frac{9}{2}}^{ifmmodepmelsetextpmfi{}}$, ${frac{11}{2}}^{ifmmodepmelsetextpmfi{}}$, ${0.70}_{ensuremath{-}0.50}^{+0.80}$; 2786.3, ${frac{9}{2}}^{ensuremath{-}}$, ${frac{11}{2}}^{ensuremath{-}}$, 0.04; 2810.7, ${frac{5}{2}}^{ifmmodepmelsetextpmfi{}}$, ${frac{7}{2}}^{ifmmodepmelsetextpmfi{}}$, ${frac{9}{2}}^{ensuremath{-}}$, 0.06; 2860.8, ${frac{13}{2}}^{ensuremath{-}}$, ${0.15}_{ensuremath{-}0.06}^{+0.08}$; 3017.3, ${frac{3}{2}}^{ifmmodepmelsetextpmfi{}}$, ${frac{5}{2}}^{ifmmodepmelsetextpmfi{}}$, ${frac{7}{2}}^{ifmmodepmelsetextpmfi{}}$, 0.06; 3133.4, (${frac{7}{2}}^{ensuremath{-}}$), ${frac{9}{2}}^{(+)}$, (${frac{11}{2}}^{ensuremath{-}}$), 0.06; 3133.7, ${frac{9}{2}}^{(ensuremath{-})}$, ${frac{11}{2}}^{(ensuremath{-})}$,${frac{13}{2}}^{(ensuremath{-})}$, ${0.32}_{ensuremath{-}0.06}^{+0.11}$; 3259.4, undetermined, > 3, 1000; 3341.6, ${frac{9}{2}}^{ifmmodepmelsetextpmfi{}}$, ${frac{11}{2}}^{ifmmodepmelsetextpmfi{}}$, ${frac{13}{2}}^{+}$, > 5, 1000. $ensuremath{gamma}$-ray branching ratios and multipole mixing ratios were also obtained from the data, and reduced electromagnetic transition matrix elements have been extracted for a number of observed transitions. The positive parity states of $^{49}mathrm{V}$ were organized into two rotational bands with ${K}^{ensuremath{pi}}={frac{1}{2}}^{+}$ and ${K}^{ensuremath{pi}}={frac{3}{2}}^{+}$. Calculations have been performed for negative parity states based on the strong-coupling model of Bohr and Mottelson with correctly treated phases in particle-hole excitations and the ${({ensuremath{Sigma}}_{i}{j}_{i})}^{2}$ term in the Hamiltonian. The results are compared with experiment.NUCLEAR REACTIONS $^{46}mathrm{Ti}(ensuremath{alpha}, pensuremath{gamma})$, ${E}_{ensuremath{alpha}}=10.6$ MeV and $^{49}mathrm{Ti}(p, nensuremath{gamma})$, ${E}_{p}=2.1$ MeV; measured $ensuremath{gamma}ensuremath{gamma}$, $pensuremath{gamma}$, $nensuremath{gamma}$, ${E}_{ensuremath{gamma}}$, ${T}_{frac{1}{2}}$, $ensuremath{delta}$ for transitions in $^{49}mathrm{V}$. Deduced $J$, $ensuremath{pi}$ for levels." @default.
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- W2321340887 date "1975-04-01" @default.
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- W2321340887 title "Properties of excited states ofV49" @default.
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- W2321340887 doi "https://doi.org/10.1103/physrevc.11.1179" @default.
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