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Whether (Formula presented.) is a proton magic number has been controversial in nuclear physics. The even-even (Formula presented.) isotopes are calculated based on the DRHBc calculations with PC-PK1. The evolutions of quadrupole deformation and pairing energies for neutron and proton are analyzed to study the possible nuclear magicity. Spherical shape occurs and neutron pairing energy vanishes at (Formula presented.) and 350, which are the results of possible neutron magicity, while the proton pairing energy never vanishes in Ubh isotopes, which does not support the proton magicity at (Formula presented.). In the single-proton spectrum, there is no discernible gap at (Formula presented.), while significant gaps appear at (Formula presented.) and 138. Therefore, (Formula presented.) is not supported as a proton magic number, while (Formula presented.) and 138 are suggested as candidates of proton magic numbers. © 2025 by the authors.
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Particles
ISSN: 2571-712X
Year: 2025
Issue: 1
Volume: 8
1 . 7 0 0
JCR@2023
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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