Invariant-mass spectroscopy of excited states
Abstract
Excited states in 14O have been investigated both experimentally and theoretically. Experimentally, these states were produced via neutron-knockout reactions with a fast 15O beam and the invariant-mass technique was employed to isolate the 1p and 2 p decay channels and determine their branching ratios. The spectrum of excited states was also calculated with the shell model embedded in the continuum that treats bound and scattering states in a unified model. By comparing energies, widths, and decay branching patterns, spin and parity assignments for all experimentally observed levels below 8 MeV are made. This includes the location of the second 2+state that we find is in near degeneracy with the third 0+ state. An interesting case of sequential 2 p decay through a pair of degenerate 13N excited states with opposite parities was found where the interference between the two sequential decay pathways produces an unusual relative-angle distribution between the emitted protons.
- Authors:
-
- Washington Univ., St. Louis, MO (United States). Dept. of Chemistry
- Polish Academy of Sciences (PAS), Krakow (Poland). Inst. of Nuclear Physics
- Grand Accélérateur National d’Ions Lourds (GANIL), Caen (France)
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab. and Dept. of Physics and Astronomy
- Western Michigan Univ., Kalamazoo MI (United States). Dept. of Physics
- Western Michigan Univ., Kalamazoo MI (United States). Dept. of Physics; Univ. of Connecticut, Storrs, CT (United States). Dept. of Physics
- Publication Date:
- Research Org.:
- Washington Univ., St. Louis, MO (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1577258
- Grant/Contract Number:
- FG02-87ER40316; FG02-04ER41320; SC0014552; NA0002135; PHY-0606007; DGE-1143954
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 100; Journal Issue: 6; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Charity, R. J., Brown, K. W., Okołowicz, J., Płoszajczak, M., Elson, J. M., Reviol, W., Sobotka, L. G., Buhro, W. W., Chajecki, Z., Lynch, W. G., Manfredi, J., Shane, R., Showalter, R. H., Tsang, M. B., Weisshaar, D., Winkelbauer, J. R., Bedoor, S., and Wuosmaa, A. H. Invariant-mass spectroscopy of O14 excited states. United States: N. p., 2019.
Web. doi:10.1103/PhysRevC.100.064305.
Charity, R. J., Brown, K. W., Okołowicz, J., Płoszajczak, M., Elson, J. M., Reviol, W., Sobotka, L. G., Buhro, W. W., Chajecki, Z., Lynch, W. G., Manfredi, J., Shane, R., Showalter, R. H., Tsang, M. B., Weisshaar, D., Winkelbauer, J. R., Bedoor, S., & Wuosmaa, A. H. Invariant-mass spectroscopy of O14 excited states. United States. doi:10.1103/PhysRevC.100.064305.
Charity, R. J., Brown, K. W., Okołowicz, J., Płoszajczak, M., Elson, J. M., Reviol, W., Sobotka, L. G., Buhro, W. W., Chajecki, Z., Lynch, W. G., Manfredi, J., Shane, R., Showalter, R. H., Tsang, M. B., Weisshaar, D., Winkelbauer, J. R., Bedoor, S., and Wuosmaa, A. H. Fri .
"Invariant-mass spectroscopy of O14 excited states". United States. doi:10.1103/PhysRevC.100.064305. https://www.osti.gov/servlets/purl/1577258.
@article{osti_1577258,
title = {Invariant-mass spectroscopy of O14 excited states},
author = {Charity, R. J. and Brown, K. W. and Okołowicz, J. and Płoszajczak, M. and Elson, J. M. and Reviol, W. and Sobotka, L. G. and Buhro, W. W. and Chajecki, Z. and Lynch, W. G. and Manfredi, J. and Shane, R. and Showalter, R. H. and Tsang, M. B. and Weisshaar, D. and Winkelbauer, J. R. and Bedoor, S. and Wuosmaa, A. H.},
abstractNote = {Excited states in 14O have been investigated both experimentally and theoretically. Experimentally, these states were produced via neutron-knockout reactions with a fast 15O beam and the invariant-mass technique was employed to isolate the 1p and 2 p decay channels and determine their branching ratios. The spectrum of excited states was also calculated with the shell model embedded in the continuum that treats bound and scattering states in a unified model. By comparing energies, widths, and decay branching patterns, spin and parity assignments for all experimentally observed levels below 8 MeV are made. This includes the location of the second 2+state that we find is in near degeneracy with the third 0+ state. An interesting case of sequential 2 p decay through a pair of degenerate 13N excited states with opposite parities was found where the interference between the two sequential decay pathways produces an unusual relative-angle distribution between the emitted protons.},
doi = {10.1103/PhysRevC.100.064305},
journal = {Physical Review C},
number = 6,
volume = 100,
place = {United States},
year = {2019},
month = {12}
}
Web of Science
Works referenced in this record:
On the Origin of Nuclear Clustering
journal, January 2012
- Okołowicz, Jacek; Płoszajczak, Marek; Nazarewicz, Witold
- Progress of Theoretical Physics Supplement, Vol. 196
Toward understanding the microscopic origin of nuclear clustering
journal, August 2012
- Okołowicz, J.; Nazarewicz, W.; Płoszajczak, M.
- Fortschritte der Physik, Vol. 61, Issue 2-3
Consistent analysis of one-nucleon spectroscopic factors involving weakly- and strongly-bound nucleons
journal, June 2016
- Okołowicz, J.; Lam, Y. H.; Płoszajczak, M.
- Physics Letters B, Vol. 757
Collectivization of anti-analog strength above charged particle thresholds
journal, April 2018
- Okołowicz, J.; Płoszajczak, M.; Charity, R. J.
- Physical Review C, Vol. 97, Issue 4
Dynamics of quantum systems embedded in a continuum
journal, February 2003
- Okołowicz, J.; Płoszajczak, M.; Rotter, I.
- Physics Reports, Vol. 374, Issue 4-5
Observation of Long-Range Three-Body Coulomb Effects in the Decay of
journal, December 2014
- Brown, K. W.; Charity, R. J.; Sobotka, L. G.
- Physical Review Letters, Vol. 113, Issue 23
Interplay between sequential and prompt two-proton decay from the first excited state of
journal, September 2015
- Brown, K. W.; Charity, R. J.; Sobotka, L. G.
- Physical Review C, Vol. 92, Issue 3
Proton-decaying states in light nuclei and the first observation of
journal, April 2017
- Brown, K. W.; Charity, R. J.; Elson, J. M.
- Physical Review C, Vol. 95, Issue 4
The high resolution array (HiRA) for rare isotope beam experiments
journal, December 2007
- Wallace, M. S.; Famiano, M. A.; van Goethem, M. -J.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 583, Issue 2-3
Energy levels of light nuclei A = 13–15
journal, February 1991
- Ajzenberg-Selove, F.
- Nuclear Physics A, Vol. 523, Issue 1
CAESAR—A high-efficiency CsI(Na) scintillator array for in-beam spectroscopy with fast rare-isotope beams
journal, December 2010
- Weisshaar, D.; Gade, A.; Glasmacher, T.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 624, Issue 3
Invariant-mass spectroscopy of , and excited states formed in neutron-transfer reactions
journal, April 2019
- Charity, R. J.; Brown, K. W.; Elson, J.
- Physical Review C, Vol. 99, Issue 4
Multiple angular scattering of heavy ions (16,17O, 40Ar, 86Kr and 100Mo) at intermediate energies (20–90 MeV/u)
journal, September 1988
- Anne, R.; Herault, J.; Bimbot, R.
- Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 34, Issue 3
Coulomb shift in the mirror pair of and as a signature of the linear-chain structure
journal, February 2019
- Baba, T.; Kimura, M.
- Physical Review C, Vol. 99, Issue 2
Single-particle resonance levels in 14O examined by <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mmultiscripts><mml:mi mathvariant="normal">N</mml:mi><mml:mprescripts/><mml:none/><mml:mn>13</mml:mn></mml:mmultiscripts><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math> elastic resonance scattering
journal, June 2007
- Teranishi, T.; Kubono, S.; Yamaguchi, H.
- Physics Letters B, Vol. 650, Issue 2-3
elastic resonance scattering via a thick-target method
journal, April 2008
- Wang, Y. B.; Wang, B. X.; Qin, X.
- Physical Review C, Vol. 77, Issue 4
Shell-model study of boron, carbon, nitrogen, and oxygen isotopes with a monopole-based universal interaction
journal, June 2012
- Yuan, Cenxi; Suzuki, Toshio; Otsuka, Takaharu
- Physical Review C, Vol. 85, Issue 6
Level widths of states studied in the high-resolution reaction
journal, April 2005
- Negret, A.; Adachi, T.; Berg, G. P. A.
- Physical Review C, Vol. 71, Issue 4
Gamow-Teller Strengths in the Multiplet: A Challenge to the Shell Model
journal, August 2006
- Negret, A.; Adachi, T.; Barrett, B. R.
- Physical Review Letters, Vol. 97, Issue 6
Continuum spectroscopy with a beam: Cluster structure and three-body decay
journal, August 2009
- Charity, R. J.; Wiser, T. D.; Mercurio, K.
- Physical Review C, Vol. 80, Issue 2
Angular Correlation of Nuclear Radiation
journal, December 1953
- Frauenfelder, H.
- Annual Review of Nuclear Science, Vol. 2, Issue 1
Theory of Angular Correlation of Nuclear Radiations
journal, July 1953
- Biedenharn, L. C.; Rose, M. E.
- Reviews of Modern Physics, Vol. 25, Issue 3
Spin alignment following inelastic scattering of , lifetime of , and its constraint on the continuum coupling strength
journal, May 2018
- Charity, R. J.; Brown, K. W.; Okołowicz, J.
- Physical Review C, Vol. 97, Issue 5
Analysis of the capture reaction using the shell model embedded in the continuum
journal, May 2000
- Bennaceur, K.; Nowacki, F.; Okołowicz, J.
- Nuclear Physics A, Vol. 671, Issue 1-4
Theory of the two-proton radioactivity in the continuum shell model
journal, March 2006
- Rotureau, J.; Okołowicz, J.; Płoszajczak, M.
- Nuclear Physics A, Vol. 767
Exceptional points in the scattering continuum
journal, September 2009
- Okołowicz, J.; Płoszajczak, M.
- Physical Review C, Vol. 80, Issue 3
Destruction of order in nuclear spectra by a residual GOE interaction
journal, December 1983
- Zirnbauer, M. R.; Verbaarschot, J. J. M.; Weidenmüller, H. A.
- Nuclear Physics A, Vol. 411, Issue 2
Transitional regions of finite Fermi systems and quantum chaos
journal, April 1991
- Heiss, W. D.; Sannino, A. L.
- Physical Review A, Vol. 43, Issue 8
Unexpected features of quantum degeneracies in a pairing model with two integrable limits
journal, July 2009
- Dukelsky, J.; Okołowicz, J.; Płoszajczak, M.
- Journal of Statistical Mechanics: Theory and Experiment, Vol. 2009, Issue 07
Collectivity, phase transitions, and exceptional points in open quantum systems
journal, September 1998
- Heiss, W. D.; Müller, M.; Rotter, I.
- Physical Review E, Vol. 58, Issue 3
Repulsion of resonance states and exceptional points
journal, January 2000
- Heiss, W. D.
- Physical Review E, Vol. 61, Issue 1
Experimental Observation of the Topological Structure of Exceptional Points
journal, January 2001
- Dembowski, C.; Gräf, H. -D.; Harney, H. L.
- Physical Review Letters, Vol. 86, Issue 5
Observation of a Chiral State in a Microwave Cavity
journal, January 2003
- Dembowski, C.; Dietz, B.; Gräf, H. -D.
- Physical Review Letters, Vol. 90, Issue 3
Unfolding a diabolic point: a generalized crossing scenario
journal, February 2003
- Keck, F.; Korsch, H. J.; Mossmann, S.
- Journal of Physics A: Mathematical and General, Vol. 36, Issue 8