The 90Zr(d, p)91Zr reaction with high resolution

Graue, A.; Herland, L.H.; Lervik, K.J.; Nesse, J.T.; Cosman, E.R.

doi:10.1016/0375-9474(72)90079-6

Cited by 37 publications

(6 citation statements)

References 6 publications

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“…For the N =4 major neutron shell (including the h = -", orbital), the single-particle energies where changed from the values given by the Nilsson formula to those given by Kisslinger and Sorensen (KS) [31]. The reason for this substitution is to reproduce the experimental level ordering for the zirconium isotopes which has the 3s»2 orbit following the 2d5~2, and the lg7~2 orbit raised above the lh»zz [32]. The KS level spacings were used in the calculations for Zr, and were slightly compressed for the other isotopes to avoid giving false systematic differences in their shell gaps.…”

Section: Inelastic Scatteringmentioning

confidence: 99%

Systematics of isospin character of transitions to the21+and31
Hören
¹
,
Auble
²
,
Campo
³

et al. 1993
Phys. Rev. C
25
1
12
0
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DiII'erential cross sections for exciting the 2&+ and 3& states of ' ' ' Zr with 70-MeV Li ions have been measured. Calculations of the cross sections have been performed using a deformed optical model potential (DOMP) with OMP deduced from fits to the elastic data, as well as a folding model with an e6'ective nucleon-nucleon interaction with a Yukawa form factor obtained from fits to the elastic data and transition densities obtained from open-shell random phase approximation (RPA) calculations. The DOMP fits to the data yield values of M"/M~which are in good agreement with those predicted using the RPA. For the 2&+ states, we find M"/M~increases from less than N/Z to greater than N/Z in going from Zr to Zr. However, for the 3, states M"/M~remains less than N/Z for all cases, a result which is in disagreement with previous works. The folding model, with the RPA transition densities, provides good agreement with the 2&+ measurements, but underpredicts the cross sections for the 3& states. A reanalysis of the earlier data from excitation of these states by (a, a') reactions removes much of the apparent discrepancies between those measurements and other measurements, including the ones reported here. The localization of the Li interaction is also discussed.PACS number(s): 21.10.Hw, 27.60. +j

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Section: Inelastic Scatteringmentioning

confidence: 99%

Systematics of isospin character of transitions to the21+and31
Hören
¹
,
Auble
²
,
Campo
³

et al. 1993
Phys. Rev. C
25
1
12
0
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“…It should be noted that DWIA calculations using this parameter set better reproduce the polarization transfer D N N (0 • ) for the 90 Zr(p, n) reaction than those at 270 MeV [10]. The radial wave functions were generated from a Woods-Saxon (WS) potential [20], adjusting the depth of central potential V 0 to reproduce the binding energies [21,22,23,24]. The unbound particle states were assumed to have a shallow binding energy to simplify the calculations.…”

mentioning

confidence: 99%

Determination of the Gamow–Teller quenching factor from charge exchange reactions on 90Zr

et al. 2005

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Double differential cross sections between 0 • -12 • were measured for the 90 Zr(n, p) reaction at 293 MeV over a wide excitation energy range of 0-70 MeV. A multipole decomposition technique was applied to the present data as well as the previously obtained 90 Zr(p, n) data to extract the Gamow-Teller (GT) component from the continuum. The GT quenching factor Q was derived by using the obtained total GT strengths. The result is Q = 0.88 ± 0.06, not including an overall normalization uncertainty in the GT unit cross section of 16%.The (p, n) reaction at intermediate energies (T p > 100 MeV) provides a highly selective probe of spin-isospin excitations in nuclei due to the energy dependence of the isovector part of nucleon-nucleon (NN ) t-matrices [1]. The

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“…Contamination was a problem for the 88 Sr and 90 Zr targets, so additional angles of 10 • and 22.5 • were used for the α-induced reaction to reveal all states for at least one angle. Angular-momentum assignments for the majority of the states populated have been made in previous work [7][8][9][10][11][12][13][14][15][16][17][18][19]; these were checked using measured angular distributions and information gained by a comparison of cross sections from the two different reactions used.…”

Section: Reactions On 88 Sr 90 Zr and 92 Momentioning

confidence: 99%

“…The (d,p) reaction on N = 50 targets has been studied previously [7][8][9][10][11][12][13][14][15][16][17][18]. However, different experimental techniques and beam energies have been used for each target.…”

Section: Introductionmentioning

confidence: 99%

Neutron single-particle strength outside theN=50core

et al. 2013

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The single-neutron properties of N = 51 nuclei have been studied with the (d,p) and (α, 3 He) reactions, at beam energies of 15 and 50 MeV respectively, on 88 Sr, 90 Zr, and 92 Mo targets. The light reaction products were momentum analyzed using a conventional magnetic spectrometer. Additionally, the 2 H(86 Kr,p) reaction was measured at a beam energy of 10 MeV/u, where outgoing light ions were analyzed using a helical-orbit spectrometer. Absolute cross sections and angular distributions corresponding to the population of different final states in the heavy product were obtained for each reaction. Spectroscopic factors were extracted and centroids of the single-particle strength were deduced. The observations appear consistent with calculations based on an evolution of single-particle structure driven by the nucleon-nucleon forces acting between valence protons and neutrons.

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The 90Zr(d, p)91Zr reaction with high resolution

Cited by 37 publications

References 6 publications

Systematics of isospin character of transitions to the21+and31
Hören
¹
,
Auble
²
,
Campo
³

et al. 1993
Phys. Rev. C
25
1
12
0
View full text Add to dashboard Cite

Systematics of isospin character of transitions to the21+and31
Hören
¹
,
Auble
²
,
Campo
³

et al. 1993
Phys. Rev. C
25
1
12
0
View full text Add to dashboard Cite

Determination of the Gamow–Teller quenching factor from charge exchange reactions on 90Zr

Neutron single-particle strength outside theN=50core

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The 90Zr(d, p)91Zr reaction with high resolution

Cited by 37 publications

References 6 publications

Systematics of isospin character of transitions to the21+and31Hören1, Auble2, Campo3 et al. 1993Phys. Rev. C251120View full textAdd to dashboardCite

Systematics of isospin character of transitions to the21+and31Hören1, Auble2, Campo3 et al. 1993Phys. Rev. C251120View full textAdd to dashboardCite

Determination of the Gamow–Teller quenching factor from charge exchange reactions on 90Zr

Neutron single-particle strength outside theN=50core

Contact Info

Product

Resources

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Systematics of isospin character of transitions to the21+and31
Hören
¹
,
Auble
²
,
Campo
³

et al. 1993
Phys. Rev. C
25
1
12
0
View full text Add to dashboard Cite

Systematics of isospin character of transitions to the21+and31
Hören
¹
,
Auble
²
,
Campo
³

et al. 1993
Phys. Rev. C
25
1
12
0
View full text Add to dashboard Cite