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Investigation of proton emission using deformed relativistic mean field densities

T. Sahoo

Department of Physics, Veer Surendra Sai University of Technology, Burla-768018, India

E-mail Address: trupti9vssut@gmail.com

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Manpreet Kaur

Institute of Physics, Sachivalaya Marg, Bhubaneswar 751005, India

Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400085, Maharashtra, India

E-mail Address: manpreetphys@gmail.com

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R. N. Panda

Department of Physics, Siksha O Anusandhan Deemed to be University, Bhubaneswar 751030, India

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Piyush R. Das

Department of Physics, Veer Surendra Sai University of Technology, Burla-768018, India

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, and

S. K. Patra

Institute of Physics, Sachivalaya Marg, Bhubaneswar 751005, India

Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400085, Maharashtra, India

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https://doi.org/10.1142/S0218301319500952Cited by:7 (Source: Crossref)

Abstract

The proton emission in neutron deficient nuclei with $Z = 53 – 83$ $Z = 53 – 83$ has been investigated within the framework of axially deformed relativistic mean field (RMF) theory using NL3 and density-dependent DD-ME1 and DD-ME2 parameters. The quasi-bound states from which the proton emission is probable are determined. The RMF densities are folded with the M3Y effective nucleon–nucleon interaction to obtain the nuclear potential. The total interaction potential consisting of nuclear, Coulomb and centrifugal potentials is used to calculate the proton decay half-lives using the Wentzel–Kramers–Brillouin (WKB) approximation. For this, we have used the $Q -value = - 𝜖_{p}$ $Q -value = - 𝜖_{p}$ , $𝜖_{p}$ $𝜖_{p}$ being the single-particle energy of the decaying proton near the Fermi surface. The calculated proton decay half-lives for different nuclei are in consonance with experimental data.

Keywords:

PACS: 21.10.k, 21.10.Dr, 21.60.n

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