The Rydberg constant is of interest due to its relation to other fundamental constants and its role in calculations of atomic energy levels. Its current relative uncertainty stands at 5.9x10^-12 [1]. However, a large discrepancy involving the proton radius and the Rydberg constant has emerged in muonic hydrogen and deuterium (“proton radius puzzle” [2]). One concern expressed by the leading aut...

The chameleon is a scalar field whose mass depends on the density of its environment. Chameleons are necessarily coupled to matter particles and will excite transitions between atomic energy levels in an analogous manner to photons. When created inside an optical cavity by passing a laser beam through a constant magnetic field, chameleons are trapped between the cavity walls and form a standing...

The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. We calculate direct neutron capture on the even-even isotopes 124−145Sn and 208−238Pb with energy levels, masses, and nuclear density distributions taken from different nuclear-structure models. The utilized structure models are a Hartree-Fock-Bogoliubov model, a relativistic mean fiel...

Among the significant issues of the subcontinental region, one can refer to the concern over Pakistan’s inability to maintain the security of its nuclear facilities, the illegal increase in its nuclear weapon production, extremist organizations’ access to nuclear weapons, as well as the fact that this country has not joined the NPT treaty. Meanwhile, the International Atomic Energy Agency (IAEA...

Nuclear structure effects lead to small corrections electron energy-level shifts and isotope in neutral atoms but have enhanced on heavy hydrogenlike ions. The authors analyze how nuclear scale with charge, mass number, other parameters various ions, an emphasis

Density functional theory methods(DFT) and natural bond orbital (NBO) analysis were used to investigate the effects of isomerism and side chain mutation at a microscopic level on the stability, binding energy and NMR/NQR tensors of structural isomers, L- methionylasparagine (Met-Asn) and L- asparagylmethionine (Asn-Met) in the gas phase. The results represented that the isomerism and side chain...

Conceiving of nuclear energy as a social experiment gives rise to the question of what to do when the experiment is no longer responsible or desirable. To be able to appropriately respond to such a situation, the nuclear energy technology in question should be reversible, i.e. it must be possible to stop its further development and implementation in society, and it must be possible to undo its ...

Nuclear structure of Ba is investigated within a framework of the pair-truncated shell model. The model reproduces experimental energy levels of the magnetic dipole band with the ν(h 11/2)⊗π(h11/2g7/2) configuration. From analysis of its structure, it turns out that two angular momenta of valence neutrons and protons gradually close as total spin increases. PACS numbers: 21.60.Cs, 21.60.Ev, 27....