This content will become publicly available on October 4, 2020
Intruder dominance in the $${0_2^+}$$ state of 32Mg studied with a novel technique for in-flight decays
Abstract
The development of advanced $γ$-ray tracking arrays allows for a sensitive new technique to investigate elusive states of exotic nuclei with fast rare-isotope beams. By taking advantage of the excellent energy and position resolution of the Gamma-Ray Energy Tracking In-beam Nuclear Array in this study, we developed a novel technique to identify in-flight isomeric decays of the 0$$^+_2$$ state in 32Mg populated in a two-proton removal reaction. We confirm the 0$$^+_2$$ → 2$$^+_1$$ $γ$-ray transition of 32Mg and constrain the 0$$^+_2$$ decay lifetime, suggesting a large collectivity. The small partial cross section populating the 0$$^+_2$$ state in this reaction provides experimental evidence for the reduced occupancy of the normal configuration of the 0$$^+_2$$ state, indicating the intruder dominance of this state.
- Authors:
- more »
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab. and Dept. of Physics and Astronomy
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Univ. of Massachusetts, Lowell, MA (United States). Dept. of Physics
- Univ. zu Köln, Köln (Germany). Inst. für Kernphysik
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
- Osaka Univ., Ibaraki, Osaka (Japan). Research Center for Nuclear Physics
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Ruđer Boškovic Inst., Zagreb (Croatia)
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.
- Univ. of Surrey, Guildford, Surrey (United Kingdom). Dept. of Physics
- Publication Date:
- Research Org.:
- Univ. of California, Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1570217
- Grant/Contract Number:
- NA0003180
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 100; Journal Issue: 4; 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
Elder, R., Iwasaki, H., Ash, J., Bazin, D., Bender, P. C., Braunroth, T., Brown, B. A., Campbell, C. M., Crawford, H. L., Elman, B., Gade, A., Grinder, M., Kobayashi, N., Longfellow, B., Macchiavelli, A. O., Mijatović, T., Pereira, J., Revel, A., Rhodes, D., Tostevin, J. A., and Weisshaar, D. Intruder dominance in the ${0_2^+}$ state of 32Mg studied with a novel technique for in-flight decays. United States: N. p., 2019.
Web. doi:10.1103/PhysRevC.100.041301.
Elder, R., Iwasaki, H., Ash, J., Bazin, D., Bender, P. C., Braunroth, T., Brown, B. A., Campbell, C. M., Crawford, H. L., Elman, B., Gade, A., Grinder, M., Kobayashi, N., Longfellow, B., Macchiavelli, A. O., Mijatović, T., Pereira, J., Revel, A., Rhodes, D., Tostevin, J. A., & Weisshaar, D. Intruder dominance in the ${0_2^+}$ state of 32Mg studied with a novel technique for in-flight decays. United States. doi:10.1103/PhysRevC.100.041301.
Elder, R., Iwasaki, H., Ash, J., Bazin, D., Bender, P. C., Braunroth, T., Brown, B. A., Campbell, C. M., Crawford, H. L., Elman, B., Gade, A., Grinder, M., Kobayashi, N., Longfellow, B., Macchiavelli, A. O., Mijatović, T., Pereira, J., Revel, A., Rhodes, D., Tostevin, J. A., and Weisshaar, D. Fri .
"Intruder dominance in the ${0_2^+}$ state of 32Mg studied with a novel technique for in-flight decays". United States. doi:10.1103/PhysRevC.100.041301.
@article{osti_1570217,
title = {Intruder dominance in the ${0_2^+}$ state of 32Mg studied with a novel technique for in-flight decays},
author = {Elder, R. and Iwasaki, H. and Ash, J. and Bazin, D. and Bender, P. C. and Braunroth, T. and Brown, B. A. and Campbell, C. M. and Crawford, H. L. and Elman, B. and Gade, A. and Grinder, M. and Kobayashi, N. and Longfellow, B. and Macchiavelli, A. O. and Mijatović, T. and Pereira, J. and Revel, A. and Rhodes, D. and Tostevin, J. A. and Weisshaar, D.},
abstractNote = {The development of advanced $γ$-ray tracking arrays allows for a sensitive new technique to investigate elusive states of exotic nuclei with fast rare-isotope beams. By taking advantage of the excellent energy and position resolution of the Gamma-Ray Energy Tracking In-beam Nuclear Array in this study, we developed a novel technique to identify in-flight isomeric decays of the 0$^+_2$ state in 32Mg populated in a two-proton removal reaction. We confirm the 0$^+_2$ → 2$^+_1$ $γ$-ray transition of 32Mg and constrain the 0$^+_2$ decay lifetime, suggesting a large collectivity. The small partial cross section populating the 0$^+_2$ state in this reaction provides experimental evidence for the reduced occupancy of the normal configuration of the 0$^+_2$ state, indicating the intruder dominance of this state.},
doi = {10.1103/PhysRevC.100.041301},
journal = {Physical Review C},
number = 4,
volume = 100,
place = {United States},
year = {2019},
month = {10}
}
Works referenced in this record:
Role of intruder configurations in Ne and Mg
journal, September 1999
- Pritychenko, B. V.; Glasmacher, T.; Cottle, P. D.
- Physics Letters B, Vol. 461, Issue 4
Large deformation of the very neutron-rich nucleus 32Mg from intermediate-energy Coulomb excitation
journal, March 1995
- Motobayashi, T.; Ikeda, Y.; Ieki, K.
- Physics Letters B, Vol. 346, Issue 1-2
Quadrupole Collectivity in and the Shell Closure
journal, March 1998
- Ibbotson, R. W.; Glasmacher, T.; Brown, B. A.
- Physical Review Letters, Vol. 80, Issue 10
Spectroscopy of strongly deformed by proton knockout reactions
journal, January 2019
- Murray, I.; MacCormick, M.; Bazin, D.
- Physical Review C, Vol. 99, Issue 1
Isomeric 0+ state in 12Be
journal, May 2003
- Shimoura, S.; Saito, A.; Minemura, T.
- Physics Letters B, Vol. 560, Issue 1-2
“Safe” Coulomb Excitation of
journal, May 2005
- Niedermaier, O.; Scheit, H.; Bildstein, V.
- Physical Review Letters, Vol. 94, Issue 17
Status of the Nuclear Shell Model
journal, December 1988
- Brown, B. A.; Wildenthal, B. H.
- Annual Review of Nuclear and Particle Science, Vol. 38, Issue 1
Large collectivity of 34Mg
journal, December 2001
- Iwasaki, H.; Motobayashi, T.; Sakurai, H.
- Physics Letters B, Vol. 522, Issue 3-4
Beta decay of and their descendants
journal, January 1979
- Détraz, C.; Guillemaud, D.; Huber, G.
- Physical Review C, Vol. 19, Issue 1
The “puzzle” reexamined
journal, November 2016
- Macchiavelli, A. O.; Crawford, H. L.; Campbell, C. M.
- Physical Review C, Vol. 94, Issue 5
Commissioning the A1900 projectile fragment separator
journal, May 2003
- Morrissey, D. J.; Sherrill, B. M.; Steiner, M.
- Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 204
Nuclear magic numbers: New features far from stability
journal, October 2008
- Sorlin, O.; Porquet, M. -G.
- Progress in Particle and Nuclear Physics, Vol. 61, Issue 2
Evaluation of theoretical conversion coefficients using BrIcc
journal, May 2008
- Kibédi, T.; Burrows, T. W.; Trzhaskovskaya, M. B.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 589, Issue 2
Island of inversion around
journal, November 2010
- Lenzi, S. M.; Nowacki, F.; Poves, A.
- Physical Review C, Vol. 82, Issue 5
Exotic neutron-rich medium-mass nuclei with realistic nuclear forces
journal, February 2017
- Tsunoda, Naofumi; Otsuka, Takaharu; Shimizu, Noritaka
- Physical Review C, Vol. 95, Issue 2
New “USD” Hamiltonians for the shell
journal, September 2006
- Brown, B. Alex; Richter, W. A.
- Physical Review C, Vol. 74, Issue 3
New Direct Reaction: Two-Proton Knockout from Neutron-Rich Nuclei
journal, June 2003
- Bazin, D.; Brown, B. A.; Campbell, C. M.
- Physical Review Letters, Vol. 91, Issue 1
Shape Coexistence in as the Portal to the Fifth Island of Inversion
journal, December 2016
- Nowacki, F.; Poves, A.; Caurier, E.
- Physical Review Letters, Vol. 117, Issue 27
New structure information on 30Mg, 31Mg and 32Mg
journal, July 2005
- Mach, H.; Fraile, L. M.; Tengblad, O.
- The European Physical Journal A, Vol. 25, Issue S1
Characterization of a gamma-ray tracking array: A comparison of GRETINA and Gammasphere using a 60Co source
journal, November 2016
- Lauritsen, T.; Korichi, A.; Zhu, S.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 836
Direct Evidence for the Breakdown of the Shell Closure in
journal, July 2000
- Navin, A.; Anthony, D. W.; Aumann, T.
- Physical Review Letters, Vol. 85, Issue 2
The S800 spectrograph
journal, May 2003
- Bazin, D.; Caggiano, J. A.; Sherrill, B. M.
- Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 204
Measurement of transition strengths in
journal, November 2005
- Church, J. A.; Campbell, C. M.; Dinca, D. -C.
- Physical Review C, Vol. 72, Issue 5
Scientific Opportunities with the NSCL Coupled Cyclotron Facility
journal, January 2002
- Sherrill, B. -M.
- Progress of Theoretical Physics Supplement, Vol. 146
Varying shell gap and deformation in unstable nuclei studied by the Monte Carlo shell model
journal, October 1999
- Utsuno, Yutaka; Otsuka, Takaharu; Mizusaki, Takahiro
- Physical Review C, Vol. 60, Issue 5
Shape coexistence in the N = 19 neutron-rich nucleus 31 Mg explored by β – γ spectroscopy of spin-polarized 31 Na
journal, April 2017
- Nishibata, H.; Shimoda, T.; Odahara, A.
- Physics Letters B, Vol. 767
Collapse of the conventional shell-model ordering in the very-neutron-rich isotopes of Na and Mg
journal, November 1980
- Wildenthal, B. H.; Chung, W.
- Physical Review C, Vol. 22, Issue 5
Collapse of the Shell Closure in
journal, July 2007
- Bastin, B.; Grévy, S.; Sohler, D.
- Physical Review Letters, Vol. 99, Issue 2
The performance of the γ-ray tracking array GRETINA for γ-ray spectroscopy with fast beams of rare isotopes
journal, March 2017
- Weisshaar, D.; Bazin, D.; Bender, P. C.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 847
Merging of the islands of inversion at and
journal, July 2014
- Caurier, E.; Nowacki, F.; Poves, A.
- Physical Review C, Vol. 90, Issue 1
Unveiling the Intruder Deformed State in
journal, August 2012
- Rotaru, F.; Negoita, F.; Grévy, S.
- Physical Review Letters, Vol. 109, Issue 9
On the structure of 30 Mg and 32 Mg
journal, May 2017
- Macchiavelli, A. O.; Crawford, H. L.
- Physica Scripta, Vol. 92, Issue 6
Collectivity at in neutron-rich
journal, May 2010
- Gade, A.; Janssens, R. V. F.; Baugher, T.
- Physical Review C, Vol. 81, Issue 5
Geant4—a simulation toolkit
journal, July 2003
- 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
Direct measurement of the masses of and with an on-line mass spectrometer
journal, August 1975
- Thibault, C.; Klapisch, R.; Rigaud, C.
- Physical Review C, Vol. 12, Issue 2
Nuclear Data Sheets for A = 30
journal, September 2010
- Shamsuzzoha Basunia, M.
- Nuclear Data Sheets, Vol. 111, Issue 9
Three-Body Forces and the Limit of Oxygen Isotopes
journal, July 2010
- Otsuka, Takaharu; Suzuki, Toshio; Holt, Jason D.
- Physical Review Letters, Vol. 105, Issue 3
Discovery of the Shape Coexisting State in by a Two Neutron Transfer Reaction
journal, December 2010
- Wimmer, K.; Kröll, T.; Krücken, R.
- Physical Review Letters, Vol. 105, Issue 25
Diffraction dissociation contributions to two-nucleon knockout reactions and the suppression of shell-model strength
journal, December 2006
- Tostevin, J. A.; Brown, B. A.
- Physical Review C, Vol. 74, Issue 6
Two-proton knockout from : Intruder amplitudes in and implications for the binding of
journal, April 2010
- Fallon, P.; Rodriguez-Vieitez, E.; Macchiavelli, A. O.
- Physical Review C, Vol. 81, Issue 4
Relativistic Coulomb excitation in near 200 MeV/nucleon with a thick target
journal, July 2015
- Li, K.; Ye, Y.; Motobayashi, T.
- Physical Review C, Vol. 92, Issue 1
Lifetime measurement of the state of with the recoil distance method
journal, August 2016
- Loelius, C.; Iwasaki, H.; Brown, B. A.
- Physical Review C, Vol. 94, Issue 2
Mass systematics for A =29–44 nuclei: The deformed A ∼32 region
journal, March 1990
- Warburton, E. K.; Becker, J. A.; Brown, B. A.
- Physical Review C, Vol. 41, Issue 3
Nuclear Data Sheets for A = 32
journal, September 2011
- Ouellet, Christian; Singh, Balraj
- Nuclear Data Sheets, Vol. 112, Issue 9
Electric and nuclear transition strength in 30,32Mg
journal, August 2001
- Chisté, V.; Gillibert, A.; Lépine-Szily, A.
- Physics Letters B, Vol. 514, Issue 3-4