A Study of the Low-Lying States of <sup>9</sup>B with a Super-Enge Split-Pole Spectrograph (SE-SPS) and the Silicon Array for Branching Ratio Experiments (SABRE)

ORAL

Abstract

We used the single-particle transfer reaction 10B(3He,α) to investigate the structure of the light, neutron-deficient nucleus 9B. Previous studies of 9B report discrepant values for the energy, width, and spin-parity of this isotope’s first-excited state, which is thought to be the mirror of the 1.65-MeV 1/2+ state in 9Be. Experimental results for this state’s energy range between 0.7-1.8 MeV with widths between 0.3-1.5 MeV. We performed the 10B(3He,α) reaction at Florida State University with a 7.5-MeV 3He beam incident on an isotopically enriched 10B target. Alpha particles were momentum-analyzed by the new Super-Enge Split-Pole magnetic spectrograph (SE-SPS) and detected at the focal plane, while the decay particles of 9B were detected by the Silicon Array for Branching Ratio Experiments (SABRE) at backward laboratory angles. Preliminary results from this experiment will be presented.

*The instrumentation was funded by NSF Major Instrumentation Award No. PHY-1429189 and partially supported by the NSF under PHY-2012522. R.M. Malecek is supported by the Center for Excellence in Nuclear Training and University-Based Research and the National Nuclear Security Administration under grant number DE-NA0003841.

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Presenters

  • Rachel Malecek

    • Louisiana State University, Baton Rouge, LA.
    • Louisiana State University

Authors

  • Rachel Malecek

    • Louisiana State University, Baton Rouge, LA.
    • Louisiana State University

  • Scott T Marley

    • Louisiana State University

  • Catherine M Deibel

    • Louisiana State University
    • Louisiana State University, Baton Rouge, LA.

  • Kevin T Macon

    • Louisiana State University
    • Louisiana State University, Baton Rouge, LA.

  • Erin C Good

    • FRIB
    • FRIB, East Lansing, MI.

  • Balakrishnan Sudarsan

    • Louisiana State University
    • Louisiana State University, Baton Rouge, LA.

  • Khang H Pham

    • Louisiana State University, Baton Rouge, LA.
    • Louisiana State University

  • Keilah S Davis

    • Louisiana State University, Baton Rouge, LA.
    • Louisiana State University

  • William D Braverman

    • Louisiana State University, Baton Rouge, LA.
    • Louisiana State University

  • Zach M Purcell

    • Louisiana State University, Baton Rouge, LA.
    • Louisiana State University

  • Ingo L Wiedenhoever

    • Florida State University
    • Florida State University, Tallahassee, FL.

  • Lagy T Baby

    • Florida State University
    • Florida State University, Tallahassee, FL.

  • Gordon W McCann

    • Florida State University
    • Florida State University, Tallahassee, FL.

  • Chris J Esparza

    • Florida State University
    • Florida State University, Tallahassee, FL.

  • Benjamin W Asher

    • Florida State University

  • Eilens L Lopez Saavedra

    • Florida State University
    • Florida State University, Tallahassee, FL.

  • Bryan Kelly

    • Florida State University, Tallahassee, FL.
    • Florida State University

  • Caleb Benetti

    • Florida State University
    • Florida State University, Tallahassee, FL.

  • Vignesh Sitaraman

    • Florida State University

  • Alex Conley

    • Florida State University

  • Ashton B Morelock

    • Florida State University
    • Florida State University, Tallahassee, FL.

  • Kenneth G Hanselman

    • Florida State University
    • Florida State University, Tallahassee, FL.

  • Jesus F Perello

    • Florida State University

  • Eli S Temanson

    • Florida State University, Tallahassee, FL.
    • Florida State University

  • Aldo Bonasera

    • Texas A&M University