α decay of the T=1, 2+ state in B10 and isospin symmetry breaking in the A=10 triplet

Kuvin, S. A.; Wuosmaa, A. H.; Lister, C. J.; Avila, M. L.; Hoffman, C. R.; Kay, B. P.; McNeel, D. G.; Morse, C.; McCutchan, E. A.; Santiago-Gonzalez, D.; Winkelbauer, J. R.

doi:10.1103/PhysRevC.96.041301

Title: $α$ decay of the $T = 1, 2^{+}$ state in ${}^{10}B$ and isospin symmetry breaking in the $A = 10$ triplet

Abstract

The rate of the T = 1, 2(+) to T = 1, 0(+) transition in B-10 (T = 1, T-z = 0) is compared to the analog transitions in Be-10 (T = 1, T-z = -1) and C-10 (T = 1, T-z = +1) to provide constraints on ab initio calculations using realistic nuclear forces. The relevant state in B-10, at E-x = 5.164 MeV, is particle unbound. Therefore, a determination of the B(E2) electromagnetic transition rate requires a precise and accurate determination of the width of the state, as well as the alpha-particle and gamma-ray branching ratios. Previous measurements of the a-particle branching ratio are just barely in agreement. We report on a new study of the alpha-particle branch by studying the B-10(p, p') B-10* reaction in inverse kinematics with the HELIOS spectrometer. The alpha-particle branching ratio that we observe, 0.144 +/- 0.027, is in good agreement with the evaluated value and improves the associated uncertainty. The resulting experimental B(E2) value is 7.0 +/- 2.2 e(2)fm(4) and is more consistent with a flat trend across the A = 10 triplet than previously reported. This is inconsistent with Green's functionMonte Carlo predictions using realistic three-nucleon Hamiltonians, which overpredict the B(E2)more » value in C-10 and B-10.« less

Authors:

Kuvin, S. A. ^[1]; Wuosmaa, A. H. ^[1]; Lister, C. J. ^[2]; Avila, M. L. ^[3]; Hoffman, C. R. ^[3]; Kay, B. P. ^[3]; McNeel, D. G. ^[1]; Morse, C. ^[2]; McCutchan, E. A. ^[4]; Santiago-Gonzalez, D. ^[5]; Winkelbauer, J. R. ^[6]

Univ. of Connecticut, Storrs, CT (United States)
Univ. of Massachusetts, Lowell, MA (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)
Louisiana State Univ., Baton Rouge, LA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: Tue Oct 03 00:00:00 EDT 2017

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1411143

Alternate Identifier(s):: OSTI ID: 1396310; OSTI ID: 1425216

Report Number(s):: BNL-114283-2017-JA
Journal ID: ISSN 2469-9985; PRVCAN; TRN: US1800181

Grant/Contract Number:: SC0012704; SC0014552; AC02-98CH10946; AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 96; 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


                    Kuvin, S. A., Wuosmaa, A. H., Lister, C. J., Avila, M. L., Hoffman, C. R., Kay, B. P., McNeel, D. G., Morse, C., McCutchan, E. A., Santiago-Gonzalez, D., and Winkelbauer, J. R. α decay of the T=1, 2+ state in B10 and isospin symmetry breaking in the A=10 triplet.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevC.96.041301.

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                    Kuvin, S. A., Wuosmaa, A. H., Lister, C. J., Avila, M. L., Hoffman, C. R., Kay, B. P., McNeel, D. G., Morse, C., McCutchan, E. A., Santiago-Gonzalez, D., & Winkelbauer, J. R. α decay of the T=1, 2+ state in B10 and isospin symmetry breaking in the A=10 triplet.  United States.  https://doi.org/10.1103/PhysRevC.96.041301

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                    Kuvin, S. A., Wuosmaa, A. H., Lister, C. J., Avila, M. L., Hoffman, C. R., Kay, B. P., McNeel, D. G., Morse, C., McCutchan, E. A., Santiago-Gonzalez, D., and Winkelbauer, J. R. Tue .  
"α decay of the T=1, 2+ state in B10 and isospin symmetry breaking in the A=10 triplet".  United States.  https://doi.org/10.1103/PhysRevC.96.041301.  https://www.osti.gov/servlets/purl/1411143.

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@article{osti_1411143,

  title        = {α decay of the T=1, 2+ state in B10 and isospin symmetry breaking in the A=10 triplet},

  author       = {Kuvin, S. A. and Wuosmaa, A. H. and Lister, C. J. and Avila, M. L. and Hoffman, C. R. and Kay, B. P. and McNeel, D. G. and Morse, C. and McCutchan, E. A. and Santiago-Gonzalez, D. and Winkelbauer, J. R.},

  abstractNote = {The rate of the T = 1, 2(+) to T = 1, 0(+) transition in B-10 (T = 1, T-z = 0) is compared to the analog transitions in Be-10 (T = 1, T-z = -1) and C-10 (T = 1, T-z = +1) to provide constraints on ab initio calculations using realistic nuclear forces. The relevant state in B-10, at E-x = 5.164 MeV, is particle unbound. Therefore, a determination of the B(E2) electromagnetic transition rate requires a precise and accurate determination of the width of the state, as well as the alpha-particle and gamma-ray branching ratios. Previous measurements of the a-particle branching ratio are just barely in agreement. We report on a new study of the alpha-particle branch by studying the B-10(p, p') B-10* reaction in inverse kinematics with the HELIOS spectrometer. The alpha-particle branching ratio that we observe, 0.144 +/- 0.027, is in good agreement with the evaluated value and improves the associated uncertainty. The resulting experimental B(E2) value is 7.0 +/- 2.2 e(2)fm(4) and is more consistent with a flat trend across the A = 10 triplet than previously reported. This is inconsistent with Green's functionMonte Carlo predictions using realistic three-nucleon Hamiltonians, which overpredict the B(E2) value in C-10 and B-10.},

  doi          = {10.1103/PhysRevC.96.041301},

  journal      = {Physical Review C},

  number       = 4,

  volume       = 96,

  place        = {United States},

  year         = {Tue Oct 03 00:00:00 EDT 2017},

  month        = {Tue Oct 03 00:00:00 EDT 2017}

}

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Works referenced in this record:

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Precise Electromagnetic Tests of Ab Initio Calculations of Light Nuclei: States in ${}^{10}{Be}$
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Title: α decay of the T = 1 , 2+ state in B 10 and isospin symmetry breaking in the A = 10 triplet

Abstract

Citation Formats

Gamma-Ray Studies in Boron-10 journal, November 1961

Energy levels of light nuclei journal, December 2004

Identification of Doublet States at 5.16 Mev in B 10 journal, September 1961

Properties of the 4.77- and 5.16-MeV States of B 10 journal, March 1966

Precise γ -ray intensity measurements in 10 B journal, November 2012

Ab initio shell model for A = 10 nuclei journal, August 2002

Commissioning of the HELIOS spectrometer journal, October 2010

Quantum Monte Carlo calculations of A = 9 , 10 nuclei journal, October 2002

Opposite deformations between protons and neutrons in proton-rich C isotopes journal, June 1997

Lifetime of the 2 1 + state in 10 C journal, July 2012

Lattice Effective Field Theory Calculations for A = 3 , 4, 6, 12 Nuclei journal, April 2010

Absolute resonance strengths in the $^{6,7}Li(\alpha, \gamma)^{10,11}B$ reactions journal, August 2004

Precise Electromagnetic Tests of Ab Initio Calculations of Light Nuclei: States in Be 10 journal, November 2009

Ab initio coupled-cluster approach to nuclear structure with modern nucleon-nucleon interactions journal, September 2010

Quantum Monte Carlo methods for nuclear physics journal, September 2015

The 5.11 and 5.16 MeV levels of B10 journal, August 1963

Study of the Excited States of B 10 from 5 to 8 MeV by the B 11 ( He 3 , α ) B 10 Reaction and a Note on the B 11 ( He 3 , t 0 ) C 11 Reaction journal, March 1965

Gamma Rays from B 10 + p ; Decay Schemes and Excitation Functions journal, May 1966

A solenoidal spectrometer for reactions in inverse kinematics journal, October 2007

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

Structure of C 14 and B 14 from the C 14 , 15 ( d , He 3 ) B 13 , 14 reactions journal, April 2016

Title: $α$ decay of the $T = 1, 2^{+}$ state in ${}^{10}B$ and isospin symmetry breaking in the $A = 10$ triplet

Gamma-Ray Studies in Boron-10
journal, November 1961

Energy levels of light nuclei
journal, December 2004

Identification of Doublet States at 5.16 Mev in $B^{10}$
journal, September 1961

Properties of the 4.77- and 5.16-MeV States of $B^{10}$
journal, March 1966

Precise $γ$ -ray intensity measurements in $^{10}$ B
journal, November 2012

Ab initio shell model for $A = 10$ nuclei
journal, August 2002

Commissioning of the HELIOS spectrometer
journal, October 2010

Quantum Monte Carlo calculations of $A = 9, 10$ nuclei
journal, October 2002

Opposite deformations between protons and neutrons in proton-rich C isotopes
journal, June 1997

Lifetime of the $2_{1}^{+}$ state in $^{10}$ C
journal, July 2012

Lattice Effective Field Theory Calculations for $A = 3$ , 4, 6, 12 Nuclei
journal, April 2010

Absolute resonance strengths in the $^{6,7}Li(\alpha, \gamma)^{10,11}B$ reactions
journal, August 2004

Precise Electromagnetic Tests of Ab Initio Calculations of Light Nuclei: States in ${}^{10}{Be}$
journal, November 2009

Ab initio coupled-cluster approach to nuclear structure with modern nucleon-nucleon interactions
journal, September 2010

Quantum Monte Carlo methods for nuclear physics
journal, September 2015

The 5.11 and 5.16 MeV levels of B10
journal, August 1963

Study of the Excited States of $B^{10}$ from 5 to 8 MeV by the $B^{11} ({He}^{3}, α) B^{10}$ Reaction and a Note on the $B^{11} ({He}^{3}, t_{0}) C^{11}$ Reaction
journal, March 1965

Gamma Rays from $B^{10}$ + $p$ ; Decay Schemes and Excitation Functions
journal, May 1966

A solenoidal spectrometer for reactions in inverse kinematics
journal, October 2007

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

Structure of ${}^{14}C$ and ${}^{14}B$ from the ${}^{14, 15}C (d, {}^{3}{He}) {}^{13, 14}B$ reactions
journal, April 2016