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Rotational bands in the mass 100 region

Jul 29, 1991

24 pages

Published in:

Nucl.Phys.A 530 (1991) 111-134

Published: Jul 29, 1991

DOI:

10.1016/0375-9474(91)90758-X

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Nuclear Science References

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Abstract: (Elsevier)

Rotational bands up to spin of ≈10 h ̵ have been studied in even-even and odd- A nuclei in the mass 100 region, by observing prompt γ-rays from the spontaneous fission of 248 Cm. Transitions in the neutro-rich nuclei 103 Zr, 104 Zr, 107 Mo and 108 Mo have been observed for the first time, and evidence for a band in 105 Nb is presented. Rotational bands are also reported in 98–100 Sr, 99,101 Y, 100–102 Zr, 101,103 Nb and 102–106 Mo. In most cases these bands have been extended to much higher spins than previously known. The data on the even-even nuclei provide information on deformation trends in this region. The level structures of the odd- A nuclei indicates which Nilsson orbitals lie close to the Fermi level. Bands based on the 5 2 + [422] and 5 2 − [303] configurations are identified in the odd- A nuclei with Z = 39 and 41. Evidence is presented that certain bands observed in N = 61 and 63 nuclei are built on the 5 2 − [532] configuration, and the role of the neutron h 11 2 orbital in stabilizing the deformation in this region is discussed.

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References(41)

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[1]

New neutron-rich nuclei Zr-103, Zr-104 and the A ~ 100 region of deformation

et al.

- Phys.Rev.Lett. 64 (1990) 3123-3126
•
DOI:
- 10.1103/PhysRevLett.64.3123

[2]

Experimental Information Concerning Deformation of Neutron Rich Nuclei in the A ~ 100 Region

- Phys.Rev.Lett. 25 (1970) 38-43
•
DOI:
- 10.1103/PhysRevLett.25.38

[3]

[4]

Deformation and shape coexistence of 0 + states in 98 Sr and 100 Zr

et al.

- Phys.Lett.B 230 (1989) 21-26
•
DOI:
- 10.1016/0370-2693(89)91646-8

[5]

Ground-state deformations for neutron-rich nuclei in the A ≈ 100 region

- Nucl.Phys.A 230 (1974) 302-316
•
DOI:
- 10.1016/0375-9474(74)90309-1

[6]

Self-consistent study of triaxial deformations: Application to the isotopes of Kr, Sr, Zr and Mo

- Nucl.Phys.A 443 (1985) 39-63
•
DOI:
- 10.1016/0375-9474(85)90320-3

[7]

D. Galeriu
,
D. Bucurescu
,
M. Ivacscu

- J.Phys.G 12 (1986) 329

[8]

Z. Physik, in press

R.R. Chasman

[9]

Towards a unified microscopic description of nuclear deformation

- Phys.Lett.B 69 (1977) 385-388
•
DOI:
- 10.1016/0370-2693(77)90825-5

[9]

Unified shell-model description of nuclear deformation

P. Federman
(
- Mexico U.
)
,
S. Pittel
(
- Delaware U., Bartol Inst.
)

- Phys.Rev.C 20 (1979) 820-829
•
DOI:
- 10.1103/PhysRevC.20.820

[10]

Importance of the neutron-proton interaction for Zr isotopes

A. Etchegoyen
(
- CNEA, Buenos Aires
)
,
P. Federman
(
- Buenos Aires U.
)
,
E.G. Vergini
(
- CNEA, Buenos Aires
)

- Phys.Rev.C 39 (1989) 1130-1133
•
DOI:
- 10.1103/PhysRevC.39.1130

[11]

Nuclear structure of Sr, Zr, and Mo isotopes

- Phys.Rev.C 32 (1985) 2116-2121
•
DOI:
- 10.1103/PhysRevC.32.2116

[12]

E. Monnand
,
J.A. Pinston
,
F. Schussler
,
B. Pfeiffer
,
H. Lawin

et al.

- Z.Phys.A 306 (1982) 183

[13]

F.K. Wohn
,
J.C. Hill
,
R.F. Petry
,
H. Dejbakhsh
,
Z. Berant

et al.

- Phys.Rev.Lett. 51 (1983) 873

[14]

K. Shizuma
,
H. Ahrens
,
J.P. Bocquet
,
N. Kaffrell
,
B.D. Kern

et al.

- Z.Phys.A 315 (1984) 65

[14]

T. Seo
,
H. Lawin
,
G. Lhersonneau
,
R.A. Meyer
,
G. Menzen

et al.

- Z.Phys.A 320 (1985) 393

[15]

P. Pfeiffer
,
E. Monnand
,
J.A. Pinston
,
J. Münzel
,
P. Möller

et al.

- Z.Phys.A 317 (1984) 123

[16]

T. Seo
,
A.-M. Schmitt
,
H. Ahrens
,
J.P. Bocquet
,
N. Kaffrell

et al.

- Z.Phys.A 315 (1984) 251

[17]

T. Seo
,
R.A. Meyer
,
K. Sistemich

[18]

Deformation in odd-mass nuclei near A ∼ 100: one- and three-quasiparticle nilsson states in 99 39 Y 60

et al.

- Nucl.Phys.A 439 (1985) 510-534
•
DOI:
- 10.1016/0375-9474(85)90424-5

[19]

Rotational structure of highly deformed Y-99: Decay of Sr-99

R.F. Petry
(
- Oklahoma U.
)
,
H. Dejbakhsh
(
- Oklahoma U.
)
,
John C. Hill
(
- Iowa State U., IITAP
)
,
F.K. Wohn
(
- Iowa State U., IITAP
)
,
M. Shmid
(
- Brookhaven
)

et al.

- Phys.Rev.C 31 (1985) 621-633
•
DOI:
- 10.1103/PhysRevC.31.621

[20]

Decay of Sr-101 and the rotational structure of Y-101

R.F. Petry
(
- Oklahoma U.
)
,
J.D. Goulden
(
- Oklahoma U.
)
,
F.K. Wohn
(
- Iowa State U., IITAP
)
,
John C. Hill
(
- Iowa State U., IITAP
)
,
R.L. Gill
(
- Brookhaven
)

et al.

- Phys.Rev.C 37 (1988) 2704-2721
•
DOI:
- 10.1103/PhysRevC.37.2704

[21]

Rotational structure of highly deformed Y-99: Particle-rotor model calculations

F.K. Wohn
(
- Iowa State U., IITAP
)
,
John C. Hill
(
- Iowa State U., IITAP
)
,
R.F. Petry
(
- Oklahoma U.
)

- Phys.Rev.C 31 (1985) 634-645
•
DOI:
- 10.1103/PhysRevC.31.634

[22]

Octupole deformation in neutron-rich barium isotopes

et al.

- Phys.Rev.Lett. 57 (1986) 3257-3260
•
DOI:
- 10.1103/PhysRevLett.57.3257

[23]

Average spins of primary fission fragments

et al.

- Phys.Lett.B 199 (1987) 504-508
•
DOI:
- 10.1016/0370-2693(87)91617-0

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