Two-neutron sequential decay of O24

Jones, M. D.; Frank, N.; Baumann, T.; Brett, J.; Bullaro, J.; DeYoung, P. A.; Finck, J. E.; Hammerton, K.; Hinnefeld, J.; Kohley, Z.; Kuchera, A. N.; Pereira, J.; Rabeh, A.; Rogers, W. F.; Smith, J. K.; Spyrou, A.; Stephenson, S. L.; Stiefel, K.; Tuttle-Timm, M.; Zegers, R. G.  T.; Thoennessen, M.

doi:10.1103/PhysRevC.92.051306

Two-neutron sequential decay of ${}^{24}O$

Journal Article · Wed Nov 25 00:00:00 EST 2015 · Physical Review C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.92.051306· OSTI ID:1454772

Jones, M. D. ^[1]; Frank, N. ^[2]; Baumann, T. ^[3]; Brett, J. ^[4]; Bullaro, J. ^[2]; DeYoung, P. A. ^[4]; Finck, J. E. ^[5]; Hammerton, K. ^[6]; Hinnefeld, J. ^[7]; Kohley, Z. ^[6]; Kuchera, A. N. ^[3]; Pereira, J. ^[3]; Rabeh, A. ^[2]; Rogers, W. F. ^[8]; Smith, J. K. ^[9]; Spyrou, A. ^[9]; Stephenson, S. L. ^[10]; Stiefel, K. ^[6]; Tuttle-Timm, M. ^[2]; Zegers, R. G. T. ^[11] more »

Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy; UC Berkeley
Augustana College, Rock Island, IL (United States)
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Laboratory
Hope College, Holland, MI (United States). Department of Physics
Central Michigan University, Mount Pleasant, MI (United States). Department of Physics
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Laboratory and Department of Chemistry
Indiana University South Bend, IN (United States). Department of Physics and Astronomy
Westmont College, Santa Barbara, CA (United States). Department of Physics
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy
Gettysburg College, PA (United States). Department of Physics
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Laboratory, Department of Physics and Astronomy and Joint Institute for Nuclear Astrophysics – Center for the Evolution of the Elements

In this study, a two-neutron unbound excited state of ²⁴O was populated through a (d,d') reaction at 83.4 MeV/nucleon. A state at E=715±110 (stat) ±45 (sys) keV with a width of Γ<2 MeV was observed above the two-neutron separation energy placing it at 7.65 ± 0.2 MeV with respect to the ground state. Three-body correlations for the decay of ²⁴O → ²²O + 2n show clear evidence for a sequential decay through an intermediate state in ²³O. Neither a di-neutron nor phase-space model for the three-body breakup were able to describe these correlations.

View Accepted Manuscript (DOE)

Research Organization:: Nuclear Science and Security Consortium, Berkeley, CA (United States)

Sponsoring Organization:: USDOE; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0000979

OSTI ID:: 1454772

Alternate ID(s):: OSTI ID: 1227080

Journal Information:: Physical Review C, Nuclear Physics, Journal Name: Physical Review C, Nuclear Physics Journal Issue: 5 Vol. 92; ISSN 0556-2813; ISSN PRVCAN

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (44)

On neutron-deficient isotopes of light nuclei and the phenomena of proton and two-proton radioactivity Goldansky, V. I. Nuclear Physics, Vol. 19 https://doi.org/10.1016/0029-5582(60)90258-3	journal	September 1960
Neutron cross-talk rejection in a modular array and the detection of halo neutrons Marqués, F. M.; Labiche, M.; Orr, N. A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 450, Issue 1 https://doi.org/10.1016/S0168-9002(00)00248-5	journal	August 2000
MoNA—The Modular Neutron Array Luther, B.; Baumann, T.; Thoennessen, M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 505, Issue 1-2 https://doi.org/10.1016/S0168-9002(03)01014-3	journal	June 2003
Geant4—a simulation toolkit Agostinelli, S.; Allison, J.; Amako, K. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8	journal	July 2003
Discovery of isotopes with Thoennessen, M. Atomic Data and Nuclear Data Tables, Vol. 98, Issue 1 https://doi.org/10.1016/j.adt.2011.08.002	journal	January 2012
Liquid hydrogen and helium targets for radioisotope beams at RIKEN Ryuto, H.; Kunibu, M.; Minemura, T. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 555, Issue 1-2 https://doi.org/10.1016/j.nima.2005.08.102	journal	December 2005
COSY INFINITY Version 9 Makino, Kyoko; Berz, Martin Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 558, Issue 1 https://doi.org/10.1016/j.nima.2005.11.109	journal	March 2006
Reconstruction of nuclear charged fragment trajectories from a large-gap sweeper magnet Frank, N.; Schiller, A.; Bazin, D. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 580, Issue 3 https://doi.org/10.1016/j.nima.2007.07.008	journal	October 2007
Neutron decay spectroscopy of neutron-rich oxygen isotopes Frank, N.; Baumann, T.; Bazin, D. Nuclear Physics A, Vol. 813, Issue 3-4 https://doi.org/10.1016/j.nuclphysa.2008.09.009	journal	December 2008
Three-body correlations in the decay of 10He and 13Li Johansson, H. T.; Aksyutina, Yu.; Aumann, T. Nuclear Physics A, Vol. 847, Issue 1-2 https://doi.org/10.1016/j.nuclphysa.2010.07.002	journal	December 2010
Evidence for a doubly magic 24O Hoffman, C. R.; Baumann, T.; Bazin, D. Physics Letters B, Vol. 672, Issue 1 https://doi.org/10.1016/j.physletb.2008.12.066	journal	February 2009
Neutron occupancy of the 0 d 5 / 2 orbital and the N = 16 shell closure in 24 O Tshoo, K.; Satou, Y.; Bertulani, C. A. Physics Letters B, Vol. 739 https://doi.org/10.1016/j.physletb.2014.10.033	journal	December 2014
Physics of unstable nuclei: from structure to sequential decays Volya, Alexander EPJ Web of Conferences, Vol. 38 https://doi.org/10.1051/epjconf/20123803003	journal	January 2012
Reaching the limits of nuclear stability Thoennessen, M. Reports on Progress in Physics, Vol. 67, Issue 7 https://doi.org/10.1088/0034-4885/67/7/R04	journal	June 2004
Nuclear structure experiments along the neutron drip line Baumann, T.; Spyrou, A.; Thoennessen, M. Reports on Progress in Physics, Vol. 75, Issue 3 https://doi.org/10.1088/0034-4885/75/3/036301	journal	February 2012
The Ame2012 atomic mass evaluation Wang, M.; Audi, G.; Wapstra, A. H. Chinese Physics C, Vol. 36, Issue 12 https://doi.org/10.1088/1674-1137/36/12/003	journal	December 2012
Cross Sections for Products of 90-Mev Neutrons on Carbon Kellogg, D. A. Physical Review, Vol. 90, Issue 2 https://doi.org/10.1103/PhysRev.90.224	journal	April 1953
N = 14 and 16 shell gaps in neutron-rich oxygen isotopes Stanoiu, M.; Azaiez, F.; Dombrádi, Zs. Physical Review C, Vol. 69, Issue 3 https://doi.org/10.1103/PhysRevC.69.034312	journal	March 2004
Correlation studies of the H 5 spectrum Golovkov, M. S.; Grigorenko, L. V.; Fomichev, A. S. Physical Review C, Vol. 72, Issue 6 https://doi.org/10.1103/PhysRevC.72.064612	journal	December 2005
Continuum shell model Volya, Alexander; Zelevinsky, Vladimir Physical Review C, Vol. 74, Issue 6 https://doi.org/10.1103/PhysRevC.74.064314	journal	December 2006
Proton-proton correlations observed in two-proton decay of Mg 19 and Ne 16 Mukha, I.; Grigorenko, L.; Sümmerer, K. Physical Review C, Vol. 77, Issue 6 https://doi.org/10.1103/PhysRevC.77.061303	journal	June 2008
Observation of a two-neutron cascade from a resonance in O 24 Hoffman, C. R.; Baumann, T.; Brown, J. Physical Review C, Vol. 83, Issue 3 https://doi.org/10.1103/PhysRevC.83.031303	journal	March 2011
Spectroscopy of neutron-unbound 27 , 28 F Christian, G.; Frank, N.; Ash, S. Physical Review C, Vol. 85, Issue 3 https://doi.org/10.1103/PhysRevC.85.034327	journal	March 2012
First observation of the 13 Li ground state Kohley, Z.; Lunderberg, E.; DeYoung, P. A. Physical Review C, Vol. 87, Issue 1 https://doi.org/10.1103/PhysRevC.87.011304	journal	January 2013
Beyond the neutron drip line: The unbound oxygen isotopes 25 O and 26 O Caesar, C.; Simonis, J.; Adachi, T. Physical Review C, Vol. 88, Issue 3 https://doi.org/10.1103/PhysRevC.88.034313	journal	September 2013
Low-lying neutron unbound states in Be 12 Smith, J. K.; Baumann, T.; Bazin, D. Physical Review C, Vol. 90, Issue 2 https://doi.org/10.1103/PhysRevC.90.024309	journal	August 2014
Three-body correlations in the ground-state decay of O 26 Kohley, Z.; Baumann, T.; Christian, G. Physical Review C, Vol. 91, Issue 3 https://doi.org/10.1103/PhysRevC.91.034323	journal	March 2015
Unbound excited states of the N = 16 closed shell nucleus O 24 Rogers, W. F.; Garrett, S.; Grovom, A. Physical Review C, Vol. 92, Issue 3 https://doi.org/10.1103/PhysRevC.92.034316	journal	September 2015
Determination of the N = 16 Shell Closure at the Oxygen Drip Line Hoffman, C. R.; Baumann, T.; Bazin, D. Physical Review Letters, Vol. 100, Issue 15 https://doi.org/10.1103/PhysRevLett.100.152502	journal	April 2008
One-Neutron Removal Measurement Reveals O 24 as a New Doubly Magic Nucleus Kanungo, R.; Nociforo, C.; Prochazka, A. Physical Review Letters, Vol. 102, Issue 15 https://doi.org/10.1103/PhysRevLett.102.152501	journal	April 2009
First Observation of Ground State Dineutron Decay: Be 16 Spyrou, A.; Kohley, Z.; Baumann, T. Physical Review Letters, Vol. 108, Issue 10 https://doi.org/10.1103/PhysRevLett.108.102501	journal	March 2012
Evidence for the Ground-State Resonance of O 26 Lunderberg, E.; DeYoung, P. A.; Kohley, Z. Physical Review Letters, Vol. 108, Issue 14 https://doi.org/10.1103/PhysRevLett.108.142503	journal	April 2012
Structure of He 10 Low-Lying States Uncovered by Correlations Sidorchuk, S. I.; Bezbakh, A. A.; Chudoba, V. Physical Review Letters, Vol. 108, Issue 20 https://doi.org/10.1103/PhysRevLett.108.202502	journal	May 2012
N = 16 Spherical Shell Closure in O 24 Tshoo, K.; Satou, Y.; Bhang, H. Physical Review Letters, Vol. 109, Issue 2 https://doi.org/10.1103/PhysRevLett.109.022501	journal	July 2012
Democratic Decay of Be 6 Exposed by Correlations Egorova, I. A.; Charity, R. J.; Grigorenko, L. V. Physical Review Letters, Vol. 109, Issue 20 https://doi.org/10.1103/PhysRevLett.109.202502	journal	November 2012
Unresolved Question of the He 10 Ground State Resonance Kohley, Z.; Snyder, J.; Baumann, T. Physical Review Letters, Vol. 109, Issue 23 https://doi.org/10.1103/PhysRevLett.109.232501	journal	December 2012
Study of Two-Neutron Radioactivity in the Decay of O 26 Kohley, Z.; Baumann, T.; Bazin, D. Physical Review Letters, Vol. 110, Issue 15 https://doi.org/10.1103/PhysRevLett.110.152501	journal	April 2013
Study of the Be 14 Continuum: Identification and Structure of its Second 2 + State Aksyutina, Yu.; Aumann, T.; Boretzky, K. Physical Review Letters, Vol. 111, Issue 24 https://doi.org/10.1103/PhysRevLett.111.242501	journal	December 2013
Two-Proton Radioactivity of F 45 e Giovinazzo, J.; Blank, B.; Chartier, M. Physical Review Letters, Vol. 89, Issue 10 https://doi.org/10.1103/PhysRevLett.89.102501	journal	August 2002
Observation of Strong Low-Lying E 1 Strength in the Two-Neutron Halo Nucleus Li 11 Nakamura, T.; Vinodkumar, A. M.; Sugimoto, T. Physical Review Letters, Vol. 96, Issue 25 https://doi.org/10.1103/PhysRevLett.96.252502	journal	June 2006
Spectroscopic Study of Neutron Shell Closures via Nucleon Transfer in the Near-Dripline Nucleus O 23 Elekes, Z.; Dombrádi, Zs.; Aoi, N. Physical Review Letters, Vol. 98, Issue 10 https://doi.org/10.1103/PhysRevLett.98.102502	journal	March 2007
Selective Population and Neutron Decay of an Excited State of O 23 Schiller, A.; Frank, N.; Baumann, T. Physical Review Letters, Vol. 99, Issue 11 https://doi.org/10.1103/PhysRevLett.99.112501	journal	September 2007
Radioactive decays at limits of nuclear stability Pfützner, M.; Karny, M.; Grigorenko, L. V. Reviews of Modern Physics, Vol. 84, Issue 2 https://doi.org/10.1103/RevModPhys.84.567	journal	April 2012
System Testing and Installation of the NHMFL/NSCL Sweeper Magnet Bird, M. D.; Kenney, S. J.; Toth, J. IEEE Transactions on Appiled Superconductivity, Vol. 15, Issue 2 https://doi.org/10.1109/TASC.2005.849553	journal	June 2005

Cited By (6)

Chronology of the three-body dissociation of ⁸ He Laurent, B.; Marqués, F. M.; Angulo, C. Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 3 https://doi.org/10.1088/1361-6471/ab02c3	journal	February 2019
Three-body model for the two-neutron emission of Be 16 Lovell, A. E.; Nunes, F. M.; Thompson, I. J. Physical Review C, Vol. 95, Issue 3 https://doi.org/10.1103/physrevc.95.034605	journal	March 2017
Search for excited states in O 25 Jones, M. D.; Fossez, K.; Baumann, T. Physical Review C, Vol. 96, Issue 5 https://doi.org/10.1103/physrevc.96.054322	journal	November 2017
Two-nucleon emitters within a pseudostate method: The case of Be 6 and Be 16 Casal, J. Physical Review C, Vol. 97, Issue 3 https://doi.org/10.1103/physrevc.97.034613	journal	March 2018
The oxygen isotopes Alex Brown, B. Quarks, Nuclei and Stars https://doi.org/10.1142/9789813220669_0002	book	March 2017
The oxygen isotopes Brown, B. Alex International Journal of Modern Physics E, Vol. 26, Issue 01n02 https://doi.org/10.1142/s0218301317400031	journal	January 2017

Similar Records

Three-body correlations in the ground-state decay of

{}^{26}O

Journal Article · Thu Mar 19 20:00:00 EDT 2015 · Physical Review C, Nuclear Physics · OSTI ID:1454776

Neutron-unbound excited states of

{}^{23}N

Journal Article · Mon Apr 24 20:00:00 EDT 2017 · Physical Review C · OSTI ID:1407961

Search for unbound

{}^{15}{Be}

states in the

3 n + {}^{12}{Be}

channel

Journal Article · Tue Jan 27 19:00:00 EST 2015 · Physical Review C, Nuclear Physics · OSTI ID:1454846

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS