Observation of Ground-state Two-neutron Decay

Thoennessen, M.; Kohley, Z.; Spyrou, A.; Lunderberg, E.; DeYoung, Paul; Attanayake, Harsha; Baumann, T.; Bazin, D.; Brown, Beth; Christian, G.; Divaratne, Dilupama; Grimes, S. M.; Haagsma, Autumn; Finck, J. E.; Frank, N.; Luther, B.; Mosby, S.; Nagi, T; Peaslee, Graham F.; Peters, William A.; Schiller, A.; Smith, J. K.; Snyder, J.; Strongman, M. J.; Volya, Alexander

doi:10.5506/aphyspolb.44.543

Cited by 8 publications

(2 citation statements)

References 35 publications

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“…In particular, by using techniques such as invariant-mass spectroscopy, it is possible to obtain the experimental decay energy spectrum of some unstable nuclei that decay by neutron emission (see for example Refs. [3,[15][16][17]). Hence, it is important to be able to calculate such spectra theoretically.…”

Section: Introductionmentioning

confidence: 99%

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The Gamow-state description of the decay energy spectrum of neutron-unbound 25O

Betán

Madrid

2018

Nuclear Physics A

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We show the feasibility of calculating the decay energy spectrum of neutron emitting nuclei within the Gamow-state description of resonances by obtaining the decay energy spectrum of 25 O. We model this nucleus as a valence neutron interacting with an 24 O inert core, and we obtain the resulting resonant energies, widths and decay energy spectra for the ground and first excited states. We also discuss the similarities and differences between the decay energy spectrum of a Gamow state and the Breit-Wigner distribution with energy-dependent width.

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Section: Introductionmentioning

confidence: 99%

“…[28]. The ground state [27,29], excited states and decay modes [17,26] of 26 O have also been studied.…”

Section: Introductionmentioning

confidence: 99%

The Gamow-state description of the decay energy spectrum of neutron-unbound 25O

Betán

Madrid

2018

Nuclear Physics A

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Perspectives on Few-Body Cluster Structures in Exotic Nuclei

et al. 2023

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Nuclear Data Sheets for A = 26

Basunia

Hurst

2016

Nuclear Data Sheets

111

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Evaluated spectroscopic data and level schemes from radioactive decay and nuclear reaction studies are presented for 26 O, 26 F, 26 Ne, 26 Na, 26 Mg, 26 Al, 26 Si, 26 P, and 26 S. This evaluation for A=26 supersedes the earlier one by P. M. Endt (1998En04) and updates for some nuclides in ENSDF. Highlights of this evaluation are the following: This evaluation includes search results for 26 S nuclide and its proton-decay mode (2011Fo08). An isomeric state (2.2 ms) in 26 F has been discovered by 2013Le03. The state is proposed at 643.4 keV 1 from γ-ray measurements. Internal-transition and beta-decay branches for the state are also determined. New excited levels in 26 Ne have been identified from 26 F βdecay (2.2 ms). For some 26 Si resonance states conflicting spin-parity assignments exist in the literature. These are identified by footnotes. 2015Do07 (3 He,nγ) propose the first 0+ state above proton separation energy at an excitation energy of 5890 keV and suggested for additional independent measurements to confirm or refute the existence of 5946 keV 4. 2016Ch09 consider 5946 keV level as a distinct excited state in their reanalysis of the literature data with possible spin-parity assignment of 0+ or 4+ This evaluation also includes discovery of an isomeric state, at 164.1 keV 1, in 26 P by 2014NiZZ.

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Observation of Ground-state Two-neutron Decay

Cited by 8 publications

References 35 publications

The Gamow-state description of the decay energy spectrum of neutron-unbound 25O

The Gamow-state description of the decay energy spectrum of neutron-unbound 25O

Perspectives on Few-Body Cluster Structures in Exotic Nuclei

Nuclear Data Sheets for A = 26

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