Large-scale shell-model study of two-neutrino double beta decay of 82Se, 94Zr, 108Cd, 124Sn, 128Te, 130Te, 136Xe, and 150Nd

Patel, Deepak; Srivastava, Praveen C.; Kota, V.K.B.; Sahu, R.

doi:10.1016/j.nuclphysa.2023.122808

Nuclear Physics A

2024

DOI: 10.1016/j.nuclphysa.2023.122808

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Large-scale shell-model study of two-neutrino double beta decay of 82Se, 94Zr, 108Cd, 124Sn, 128Te, 130Te, 136Xe, and 150Nd

Deepak Patel,

Praveen C. Srivastava,

V.K.B. Kota

et al.

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Cited by 2 publications

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Deformed Shell Model Applications to Weak Interaction Processes

Sahu,

Kota,

Kosmas

2024

Particles

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The deformed shell model (DSM), based on Hartree–Fock intrinsic states with angular momentum projection and band mixing, has been found to be quite successful in describing many spectroscopic properties of nuclei in the A = 60–100 region. More importantly, DSM has been used recently with good success in calculating nuclear structure factors, which are needed for a variety of weak interaction processes. In this article, in addition to giving an overview of this, we discuss the applications of DSM to obtain cross-sections for coherent and incoherent neutrino nucleus scattering on 96,98,100Mo targets and also for obtaining two neutrino double beta decay nuclear transition matrix elements for 100Mo.

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Deformed Shell Model Applications to Weak Interaction Processes

Sahu,

Kota,

Kosmas

2024

Particles

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Theoretical Advances in Beta and Double-Beta Decay

Sevestrean,

Stoica

2024

Symmetry

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Weak interaction processes continue to be hot topics in fundamental physics research. In this paper, we briefly review some recent advances in the theoretical study of beta and double-beta decays that include both the nuclear and atomic part of these processes. On the nuclear side, we present a statistical approach for the computation of the nuclear matrix elements (NME) for neutrinoless double-beta (0νββ). A range of NME values, the most probable value for NME, and the associated theoretical uncertainty are given. Correlations with other related observables are shown as well. On the atomic side, we first briefly review the methods used to obtain the electrons’ wave functions. Further, we use them for the computation of some relevant kinematic quantities such as Fermi functions, electron spectra, and angular correlation between the emitted electrons. Then, we present applications of these calculations to the experimental data analysis related to the search of the Lorentz invariance violation in two-neutrino double-beta (2νββ) decay and description of the decay rates and decay rate ratios for allowed and unique forbidden electron capture (EC) processes.

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Large-scale shell-model study of two-neutrino double beta decay of 82Se, 94Zr, 108Cd, 124Sn, 128Te, 130Te, 136Xe, and 150Nd

Cited by 2 publications

References 60 publications

Deformed Shell Model Applications to Weak Interaction Processes

Deformed Shell Model Applications to Weak Interaction Processes

Theoretical Advances in Beta and Double-Beta Decay

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