Angular Correlations of $\gamma$-rays from $^{76}$As

ORAL

Abstract

The intermediate nucleus of the hypothetical neutrinoless double-beta ($0\nu 2\beta$) decay mode of $^{76}$Ge is $^{76}$As. Structural knowledge of this nucleus is important to the ongoing theoretical study of the $0\nu 2\beta$-decay mode. Energies and parities of many low-lying states of $^{76}$As are known; however, the only state of this nucleus with known spin is the ground state. The low-lying states of $^{76}$As have been studied in a $\gamma$-$\gamma$ angular correlations experiment at WNSL, Yale University. The $^{76}$Ge(p,n) reaction with 6 MeV incident protons was used to populate excited states of $^{76}$As. $\gamma$-rays were detected by a pair of LEPS detectors and 10 Compton-suppressed clover detectors mounted in the YRAST Ball array. Preliminary results will be presented.

*This work was supported by the U.S. DOE under grant no. DE-FG02-91ER40609.

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Authors

  • N. Cooper

    • Yale University

  • V. Werner

    • Yale University

  • E. Williams

    • Yale University

  • C. Bernards

    • Yale University

  • R.J. Casperson

    • Yale University

  • A. Heinz

    • Yale University

  • M. Marshall

    • Yale University

  • J. Qian

    • Yale University

  • M.K. Smith

    • Yale University

  • J.R. Terry

    • Yale University

  • R. Winkler

    • Yale University

  • B.P. Crider

    • University of Kentucky

  • S.W. Yates

    • University of Kentucky