In-beam γ-ray spectroscopy at the proton dripline: 40Sc

Gade, A.; Weisshaar, D.; Brown, B. A.; Tostevin, J. A.; Bazin, D.; Brown, K.; Charity, R. J.; Farris, P. J.; Hill, A. M.; Li, J.; Longfellow, B.; Reviol, W.; Rhodes, D.

doi:10.1016/j.physletb.2020.135637

Title: In-beam γ-ray spectroscopy at the proton dripline: 40Sc

Abstract

We report on the first in-beam gamma-ray spectroscopy of the proton-dripline nucleus Sc-40 using two-nucleon pickup onto an intermediate-energy rare-isotope beam of Ca-38. The Be-9(Ca-38,Sc-40+gamma)X reaction at 60.9 MeV/nucleon mid-target energy selectively populates states in Sc-40 for which the transferred proton and neutron couple to high orbital angular momentum. In turn, due to angular-momentum selection rules in proton emission and the nuclear structure and energetics of Ca-39, such states in Sc-40 then exhibit gamma-decay branches although they are well above the proton separation energy. This work uniquely complements results from particle spectroscopy following charge-exchange reactions on Ca-40 as well as Ti-40 EC/beta(+) decay which both display very different selectivities. The population and gamma-ray decay of the previously known first (5(-)) state at 892 keV and the observation of a new level at 2744 keV are discussed in comparison to the mirror nucleus and shell-model calculations. On the experimental side, this work shows that high-resolution in-beam gamma-ray spectroscopy is possible with new generation Ge arrays for reactions induced by rare-isotope beams on the level of a few mu b of cross section. (C) 2020 The Author(s). Published by Elsevier B.V.

Authors:

; Weisshaar, D.; Brown, B. A.; Tostevin, J. A.; Bazin, D.;

; Charity, R. J.; Farris, P. J.; Hill, A. M.; Li, J.; Longfellow, B.; Reviol, W.; Rhodes, D.

Publication Date:: Tue Sep 01 00:00:00 EDT 2020

Research Org.:: Michigan State Univ., East Lansing, MI (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)

OSTI Identifier:: 1641875

Alternate Identifier(s):: OSTI ID: 1642516; OSTI ID: 1774260

Grant/Contract Number:: NA0003180; SC0020451; FG02-87ER40316; AC02-06CH11357; SC0019034; PHY-1565546; PHY-1811855

Resource Type:: Published Article

Journal Name:: Physics Letters. B

Additional Journal Information:: Journal Name: Physics Letters. B Journal Volume: 808 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Gade, A., Weisshaar, D., Brown, B. A., Tostevin, J. A., Bazin, D., Brown, K., Charity, R. J., Farris, P. J., Hill, A. M., Li, J., Longfellow, B., Reviol, W., and Rhodes, D. In-beam γ-ray spectroscopy at the proton dripline: 40Sc.  Netherlands: N. p., 2020. 
Web.  doi:10.1016/j.physletb.2020.135637.

Copy to clipboard


                    Gade, A., Weisshaar, D., Brown, B. A., Tostevin, J. A., Bazin, D., Brown, K., Charity, R. J., Farris, P. J., Hill, A. M., Li, J., Longfellow, B., Reviol, W., & Rhodes, D. In-beam γ-ray spectroscopy at the proton dripline: 40Sc.  Netherlands.  https://doi.org/10.1016/j.physletb.2020.135637

Copy to clipboard


                    Gade, A., Weisshaar, D., Brown, B. A., Tostevin, J. A., Bazin, D., Brown, K., Charity, R. J., Farris, P. J., Hill, A. M., Li, J., Longfellow, B., Reviol, W., and Rhodes, D. Tue .  
"In-beam γ-ray spectroscopy at the proton dripline: 40Sc".  Netherlands.  https://doi.org/10.1016/j.physletb.2020.135637.

Copy to clipboard


                    
@article{osti_1641875,

  title        = {In-beam γ-ray spectroscopy at the proton dripline: 40Sc},

  author       = {Gade, A. and Weisshaar, D. and Brown, B. A. and Tostevin, J. A. and Bazin, D. and Brown, K. and Charity, R. J. and Farris, P. J. and Hill, A. M. and Li, J. and Longfellow, B. and Reviol, W. and Rhodes, D.},

  abstractNote = {We report on the first in-beam gamma-ray spectroscopy of the proton-dripline nucleus Sc-40 using two-nucleon pickup onto an intermediate-energy rare-isotope beam of Ca-38. The Be-9(Ca-38,Sc-40+gamma)X reaction at 60.9 MeV/nucleon mid-target energy selectively populates states in Sc-40 for which the transferred proton and neutron couple to high orbital angular momentum. In turn, due to angular-momentum selection rules in proton emission and the nuclear structure and energetics of Ca-39, such states in Sc-40 then exhibit gamma-decay branches although they are well above the proton separation energy. This work uniquely complements results from particle spectroscopy following charge-exchange reactions on Ca-40 as well as Ti-40 EC/beta(+) decay which both display very different selectivities. The population and gamma-ray decay of the previously known first (5(-)) state at 892 keV and the observation of a new level at 2744 keV are discussed in comparison to the mirror nucleus and shell-model calculations. On the experimental side, this work shows that high-resolution in-beam gamma-ray spectroscopy is possible with new generation Ge arrays for reactions induced by rare-isotope beams on the level of a few mu b of cross section. (C) 2020 The Author(s). Published by Elsevier B.V.},

  doi          = {10.1016/j.physletb.2020.135637},

  journal      = {Physics Letters. B},

  number       = C,

  volume       = 808,

  place        = {Netherlands},

  year         = {Tue Sep 01 00:00:00 EDT 2020},

  month        = {Tue Sep 01 00:00:00 EDT 2020}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Publisher's Version of Record
https://doi.org/10.1016/j.physletb.2020.135637

Other availability

Search WorldCat to find libraries that may hold this journal

Figures / Tables:

Figure 1: Part of the nuclear chart around ⁴⁰Sc. In fact, ⁴⁰Sc is the heaviest dripline nucleus for which the directly neighboring isobar (⁴⁰Ca) is actually stable, allowing for extensive charge-exchange studies with stable beams and targets. The only other such isobar pair in the sd shell or above ismore »

All figures and tables (5 total)

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Neutrino capture cross sections for 40Ar and β-decay of 40Ti
journal, February 1995

Ormand, W. E.; Pizzochero, P. M.; Bortignon, P. F.
Physics Letters B, Vol. 345, Issue 4
DOI: 10.1016/0370-2693(94)01605-C

A measurement of the mass of 39Sc
journal, July 1988

Woods, C. L.; Catford, W. N.; Fifield, L. K.
Nuclear Physics A, Vol. 484, Issue 1
DOI: 10.1016/0375-9474(88)90146-7

Measurement of the $^{40} Ca (^{3} He {, t)}^{40} Sc$ reaction
journal, January 2000

Hansper, V. Y.; Champagne, A. E.; Hale, S. E.
Physical Review C, Vol. 61, Issue 2
DOI: 10.1103/PhysRevC.61.028801

Study of the ${}^{40}{Ca} ({}^{3}{He}, t) {}^{40}{Sc}$ Reaction at 30.2 MeV
journal, October 1971

Loiseaux, J-M.; Bruge, G.; Kossanyi-Demay, P.
Physical Review C, Vol. 4, Issue 4
DOI: 10.1103/PhysRevC.4.1219

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
DOI: 10.1016/j.nima.2016.12.001

In-beam γ-ray spectroscopy at the proton dripline: 23Al
journal, August 2008

Gade, A.; Adrich, P.; Bazin, D.
Physics Letters B, Vol. 666, Issue 3
DOI: 10.1016/j.physletb.2008.07.062

Radionuclides ${Al}^{24}$ , $P^{28}$ , ${Cl}^{32}$ , and ${Sc}^{40}$
journal, June 1955

Glass, Neel W.; Richardson, J. Reginald
Physical Review, Vol. 98, Issue 5
DOI: 10.1103/PhysRev.98.1251

The 40Ca(α, d)42Sc reaction
journal, November 1977

Nann, H.; Chien, W. S.; Saha, A.
Nuclear Physics A, Vol. 292, Issue 1-2
DOI: 10.1016/0375-9474(77)90367-0

Neutrino absorption efficiency of an $^{40} Ar$ detector from the β decay of $^{40} Ti$
journal, December 1998

Bhattacharya, M.; García, A.; Kaloskamis, N. I.
Physical Review C, Vol. 58, Issue 6
DOI: 10.1103/PhysRevC.58.3677

Stretched proton-neutron configurations in fp-shell nuclei
journal, March 1994

Fister, U.; Jahn, R.; von Neumann-Cosel, P.
Nuclear Physics A, Vol. 569, Issue 3
DOI: 10.1016/0375-9474(94)90312-3

$β$ decay of $^{40} Ti$ and $^{41} Ti$ and implication for solar-neutrino detection
journal, November 1998

Liu, W.; Hellström, M.; Collatz, R.
Physical Review C, Vol. 58, Issue 5
DOI: 10.1103/PhysRevC.58.2677

NSCL and FRIB at Michigan State University: Nuclear science at the limits of stability
journal, April 2016

Gade, A.; Sherrill, B. M.
Physica Scripta, Vol. 91, Issue 5
DOI: 10.1088/0031-8949/91/5/053003

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
DOI: 10.1016/S0168-583X(02)01895-5

The performance of the Gamma-Ray Energy Tracking In-beam Nuclear Array GRETINA
journal, May 2013

Paschalis, S.; Lee, I. Y.; Macchiavelli, A. O.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 709
DOI: 10.1016/j.nima.2013.01.009

Particle-hole strength excited in the ${}^{40}{Ca}$ (p,n $)^{40}$ Sc reaction at 134 MeV
journal, July 1986

Chittrakarn, T.; Anderson, B. D.; Baldwin, A. R.
Physical Review C, Vol. 34, Issue 1
DOI: 10.1103/PhysRevC.34.80

Charged-particle thermonuclear reaction rates: II. Tables and graphs of reaction rates and probability density functions
journal, October 2010

Iliadis, C.; Longland, R.; Champagne, A. E.
Nuclear Physics A, Vol. 841, Issue 1-4
DOI: 10.1016/j.nuclphysa.2010.04.009

Analog $E 1$ transitions and isospin mixing
journal, August 2008

Pattabiraman, N. S.; Jenkins, D. G.; Bentley, M. A.
Physical Review C, Vol. 78, Issue 2
DOI: 10.1103/PhysRevC.78.024301

Experimental study of states in s-d shell nuclei
journal, July 1976

Del Vecchio, R. M.; Kouzes, R. T.; Sherr, R.
Nuclear Physics A, Vol. 265, Issue 2
DOI: 10.1016/0375-9474(76)90351-1

The empirical (1f 7/2 ) n model
journal, December 1978

Kutschera, W.; Brown, B. A.; Ogawa, K.
La Rivista Del Nuovo Cimento Series 3, Vol. 1, Issue 12
DOI: 10.1007/BF02724440

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
DOI: 10.1016/S0168-583X(02)02142-0

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
DOI: 10.1103/PhysRevC.41.1147

Stretched states in ${}^{12, 13}B$ with the $(d, α)$ reaction
journal, December 2014

Wuosmaa, A. H.; Schiffer, J. P.; Bedoor, S.
Physical Review C, Vol. 90, Issue 6
DOI: 10.1103/PhysRevC.90.061301

The (3He, t) reaction at 197 MeV on 12C, 24Mg, 28Si and 40Ca
journal, June 1984

Tabor, S. L.; Neuschaefer, G.; Carr, J. A.
Nuclear Physics A, Vol. 422, Issue 1
DOI: 10.1016/0375-9474(84)90429-9

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar Records in DOE PAGES and OSTI.GOV collections:

Probing proton cross-shell excitations through the two-neutron removal from ³⁸Ca

Journal Article Beck, T. ; Gade, A. ; Brown, B. A. ; ... - Physical Review. C

Bound states of the neutron-deficient, near-dripline nucleus ³⁶Ca were populated in two-neutron removal from the ground state of ³⁸Ca, a direct reaction sensitive to the single-particle configurations and couplings of the removed neutrons in the projectile wave function. Final-state exclusive cross sections for the formation of ³⁶Ca and the corresponding longitudinal momentum distributions, both determined through the combination of particle and γ-ray spectroscopy, are compared to predictions combining eikonal reaction theory and shell-model two-nucleon amplitudes from the USDB, USDC, and ZBM2 effective interactions. The final-state cross-section ratio σ(more »« less
https://doi.org/10.1103/physrevc.108.l061301
Dissipative Reactions with Intermediate-Energy Beams: A Novel Approach to Populate Complex-Structure States in Rare Isotopes

Journal Article Gade, A. ; Brown, B. A. ; Weisshaar, D. ; ... - Physical Review Letters

A novel pathway for the formation of multiparticle-multihole excited states in rare isotopes is reported from highly energy- and momentum-dissipative inelastic-scattering events measured in reactions of an intermediate-energy beam of ³⁸Ca on a Be target. The negative-parity, complex-structure final states in ³⁸Ca are observed following the in-beam γ-ray spectroscopy of events in the ⁹Be(³⁸Ca, ³⁸Ca + γ)X reaction in which the scattered projectile loses longitudinal momentum of order Δp_|| = 700 MeV/c. Here, the characteristics of the observed final states are discussed and found to be consistent with the formation of excited states involving the rearrangement of multiple nucleons inmore »« less
https://doi.org/10.1103/physrevlett.129.242501

Full Text Available
Exploiting dissipative reactions to perform in-beam γ-ray spectroscopy of the neutron-deficient isotopes ^38,39Ca

Journal Article Gade, A. ; Weisshaar, D. ; Brown, B. A. ; ... - Physical Review. C

The neutron-deficient Ca isotopes continue to attract attention due to their importance for testing isospin symmetry and their relevance in capture reactions of interest for nova nucleosynthesis and the shape of light curves in Type I x-ray bursts. To date, spectroscopic information on ^38,39Ca is largely limited to data on lower-spin excited states. Here, we report in-beam γ-ray spectroscopy of complementary higher-spin, complex-structure states in ³⁹Ca populated in fast-beam-induced, momentum-dissipative processes leading to neutron pickup onto excited configurations of the projectile, ⁹Be(³⁸Ca*,³⁹Ca + γ)X. Such a dissipative reaction was recently characterized for the case of inelastic scattering of ³⁸Ca offmore »« less
https://doi.org/10.1103/physrevc.106.064303

Full Text Available
Level structures of ^56,58Ca cast doubt on a doubly magic ⁶⁰Ca

Journal Article Chen, S. ; Browne, F. ; Doornenbal, P. ; ... - Physics Letters. B

Gamma decays were observed in ⁵⁶Ca and ⁵⁸Ca following quasi-free one-proton knockout reactions from ^57,59Sc beams at ≈200 MeV/nucleon. For ⁵⁶Ca, a γ ray transition was measured to be 1456(12) keV, while for ⁵⁸Ca an indication for a transition was observed at 1115(34) keV. Both transitions were tentatively assigned as themore »« less
https://doi.org/10.1016/j.physletb.2023.138025

Full Text Available
Nuclear structure studies along the proton dripline at ATLAS

Journal Article Seweryniak, D ; Carpenter, M P ; Hoffman, C ; ... - AIP Conference Proceedings

Nuclei far from the line of stability are a focal point of contemporary nuclear physics. Nuclear structure studies along the proton dripline remain an important component of the scientific program at the ATLAS facility. The Gammasphere gamma-ray array and the Fragment Mass Analyzer offer the unprecedented sensitivity and selectivity required to study nuclei at and beyond the proton dripline. Recent results in proton decay studies, in-beam {gamma}-ray spectroscopy around {sup 100}Sn and studies of proton resonances in light nuclei involved in the astrophysical hydrogen burning are presented. Future prospects in the context of planned and on-going upgrades of ATLAS andmore »« less
https://doi.org/10.1063/1.3664149

Similar Records

Title: In-beam γ-ray spectroscopy at the proton dripline: 40Sc

Abstract

Citation Formats

Figures / Tables:

Neutrino capture cross sections for 40Ar and β-decay of 40Ti journal, February 1995

A measurement of the mass of 39Sc journal, July 1988

Measurement of the 40 Ca ( 3 He , t ) 40 Sc reaction journal, January 2000

Study of the Ca 40 ( He 3 , t ) Sc 40 Reaction at 30.2 MeV journal, October 1971

The performance of the γ-ray tracking array GRETINA for γ-ray spectroscopy with fast beams of rare isotopes journal, March 2017

In-beam γ-ray spectroscopy at the proton dripline: 23Al journal, August 2008

Radionuclides Al 24 , P 28 , Cl 32 , and Sc 40 journal, June 1955

The 40Ca(α, d)42Sc reaction journal, November 1977

Neutrino absorption efficiency of an 40 Ar detector from the β decay of 40 Ti journal, December 1998

Stretched proton-neutron configurations in fp-shell nuclei journal, March 1994

β decay of 40 Ti and 41 Ti and implication for solar-neutrino detection journal, November 1998

NSCL and FRIB at Michigan State University: Nuclear science at the limits of stability journal, April 2016

Commissioning the A1900 projectile fragment separator journal, May 2003

The performance of the Gamma-Ray Energy Tracking In-beam Nuclear Array GRETINA journal, May 2013

Particle-hole strength excited in the Ca 40 (p,n ) 40 Sc reaction at 134 MeV journal, July 1986

Charged-particle thermonuclear reaction rates: II. Tables and graphs of reaction rates and probability density functions journal, October 2010

Analog E 1 transitions and isospin mixing journal, August 2008

Experimental study of states in s-d shell nuclei journal, July 1976

The empirical (1f 7/2 ) n model journal, December 1978

The S800 spectrograph journal, May 2003

Mass systematics for A =29–44 nuclei: The deformed A ∼32 region journal, March 1990

Stretched states in B 12 , 13 with the ( d , α ) reaction journal, December 2014

The (3He, t) reaction at 197 MeV on 12C, 24Mg, 28Si and 40Ca journal, June 1984

Neutrino capture cross sections for 40Ar and β-decay of 40Ti
journal, February 1995

A measurement of the mass of 39Sc
journal, July 1988

Measurement of the $^{40} Ca (^{3} He {, t)}^{40} Sc$ reaction
journal, January 2000

Study of the ${}^{40}{Ca} ({}^{3}{He}, t) {}^{40}{Sc}$ Reaction at 30.2 MeV
journal, October 1971

The performance of the γ-ray tracking array GRETINA for γ-ray spectroscopy with fast beams of rare isotopes
journal, March 2017

In-beam γ-ray spectroscopy at the proton dripline: 23Al
journal, August 2008

Radionuclides ${Al}^{24}$ , $P^{28}$ , ${Cl}^{32}$ , and ${Sc}^{40}$
journal, June 1955

The 40Ca(α, d)42Sc reaction
journal, November 1977

Neutrino absorption efficiency of an $^{40} Ar$ detector from the β decay of $^{40} Ti$
journal, December 1998

Stretched proton-neutron configurations in fp-shell nuclei
journal, March 1994

$β$ decay of $^{40} Ti$ and $^{41} Ti$ and implication for solar-neutrino detection
journal, November 1998

NSCL and FRIB at Michigan State University: Nuclear science at the limits of stability
journal, April 2016

Commissioning the A1900 projectile fragment separator
journal, May 2003

The performance of the Gamma-Ray Energy Tracking In-beam Nuclear Array GRETINA
journal, May 2013

Particle-hole strength excited in the ${}^{40}{Ca}$ (p,n $)^{40}$ Sc reaction at 134 MeV
journal, July 1986

Charged-particle thermonuclear reaction rates: II. Tables and graphs of reaction rates and probability density functions
journal, October 2010

Analog $E 1$ transitions and isospin mixing
journal, August 2008

Experimental study of states in s-d shell nuclei
journal, July 1976

The empirical (1f 7/2 ) n model
journal, December 1978

The S800 spectrograph
journal, May 2003

Mass systematics for A =29–44 nuclei: The deformed A ∼32 region
journal, March 1990

Stretched states in ${}^{12, 13}B$ with the $(d, α)$ reaction
journal, December 2014

The (3He, t) reaction at 197 MeV on 12C, 24Mg, 28Si and 40Ca
journal, June 1984