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Invariant-mass spectroscopy of Ne18, O16 , and C10 excited states formed in neutron-transfer reactions

Journal Article · · Physical Review C
 [1];  [2];  [2];  [2];  [2];  [3];  [4];  [3];  [3];  [3];  [3];  [3];  [3];  [3];  [5];  [6];  [6]
  1. Washington Univ., St. Louis, MO (United States); DOE/OSTI
  2. Washington Univ., St. Louis, MO (United States)
  3. Michigan State Univ., East Lansing, MI (United States)
  4. Michigan State Univ., East Lansing, MI (United States); Western Michigan Univ., Kalamazoo MI (United States)
  5. Western Michigan Univ., Kalamazoo MI (United States)
  6. Western Michigan Univ., Kalamazoo MI (United States); Univ. of Connecticut, Storrs, CT (United States)
+ Show Author Affiliations
Neutron-transfer reactions with fast secondary beams of 17Ne, 15O, and 9C have been studied with the HiRA and CAESAR arrays. Excited states of 18Ne, 16O, and 10C in the continuum have been identified using invariant-mass spectroscopy. The best experimental resolution of these states is achieved by selecting events where the decay fragments are emitted transverse to the beam direction. We have confirmed a number of spin assignments made in previous works for the negative-parity states of 18Ne. In addition we have found new higher-lying excited states in 16O and 18Ne, some of which fission into two ground-state 8Be fragments. Finally for 10C, a new excited state was observed. Furthermore, these transfer reactions were found to leave the remnant of the 9Be target nuclei at very high excitation energies and may be associated with the pickup of a deeply bound 9Be neutron.
Research Organization:
Krell Institute, Ames, IA (United States); Univ. of Connecticut, Storrs, CT (United States); Washington Univ., St. Louis, MO (United States); Western Michigan Univ., Kalamazoo MI (United States)
Sponsoring Organization:
National Science Foundation; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
FG02-04ER41320; FG02-87ER40316; NA0002135; SC0014552
OSTI ID:
1609530
Alternate ID(s):
OSTI ID: 1506126
Journal Information:
Physical Review C, Journal Name: Physical Review C Journal Issue: 4 Vol. 99; ISSN PRVCAN; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (2)

Particle decays of levels in N 11 , 12 and O 12 investigated with the invariant-mass method journal August 2019
Invariant-mass spectroscopy of O 14 excited states journal December 2019

Figures / Tables (24)

FIG. 1(p. 4)figure FIG. 1
FIG. 2(p. 4)figure FIG. 2
FIG. 3(p. 5)figure FIG. 3
FIG. 4(p. 6)figure FIG. 4
FIG. 5(p. 7)figure FIG. 5
FIG. 6(p. 8)figure FIG. 6
TABLE I(p. 8)table TABLE I
TABLE II(p. 8)table TABLE II
FIG. 7(p. 9)figure FIG. 7
FIG. 8(p. 9)figure FIG. 8
FIG. 10(p. 10)figure FIG. 10
FIG. 9(p. 10)figure FIG. 9
TABLE III(p. 10)table TABLE III
FIG. 11(p. 11)figure FIG. 11
FIG. 12(p. 11)figure FIG. 12
FIG. 13(p. 12)figure FIG. 13
TABLE IV(p. 13)table TABLE IV
FIG. 14(p. 15)figure FIG. 14
FIG. 15(p. 15)figure FIG. 15
TABLE V(p. 15)table TABLE V
FIG. 16(p. 16)figure FIG. 16
FIG. 17(p. 17)figure FIG. 17
FIG. 18(p. 18)figure FIG. 18
TABLE VI(p. 18)table TABLE VI

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Related Subjects

6 ≤ A ≤ 19
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
direct reactions
energy levels & level densities
low & intermediate energy heavy-ion reactions
physics
proton emission
radioactive beams
resonance reactions
unstable nuclei induced nuclear reactions