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We analyze the big bounce transition of the quantum FRW model in the setting of the nonstandard loop quantum cosmology (LQC). Elementary observables are used to quantize compound observables. The spectrum of the energy density operator is bounded and continuous. The spectrum of the volume operator is bounded from below and discrete. It has equally distant levels defining a quantum of the volume. The discreteness may imply a foamy structure of spacetime at semiclassical level which may be detected in astro-cosmo observations. The nonstandard LQC method has a free parameter that should be fixed in some way to specify the big bounce transition. [ABSTRACT FROM AUTHOR]

A brief report of some recent experimental developments concerning the X, Y and Z charmoniumlike mesons states and other puzzling states from the BaBar, Belle, BESIII and CDF experiments is presented. [ABSTRACT FROM AUTHOR]

Spectral profiles and lifetimes have been calculated for the He(21S)-Ne loosely bound molecule. It has been found that the radiating properties of the molecule depend strong on temperature. [ABSTRACT FROM AUTHOR]

The CaF2:0.83 mol% ErF3 crystal was grown using the vertical Bridgman method. The Judd-Ofelt intensity parameters Ω2, Ω4, and Ω6 for f-f transitions of Er3+ ions were determined from the optical absorption spectrum. The predicted radiative lifetimes are compared to those of Er3+ transitions reported in various hosts. Apart from the green and red emission, reported by other researchers, an UV (314 nm) emission band was observed, not reported before. [ABSTRACT FROM AUTHOR]

A quasiclassical approach to the calculations of radiative transition probabilities in parabolic variables is under consideration. Kramers formulas for total radiative transition intensities are obtained in parabolic coordinates. The quasiclassical limit of Gordon formulas for radiative transition probabilities between highly excited atomic states is investigated. The transition from quantum Gorgon results to classical M.Born formulas for spectral line intensities in parabolic variables is obtained. The simple universal quasictassical formulas for Stark component intensities are applied for calculations of statistical and dynamical spectral line shapes in plasmas. [ABSTRACT FROM AUTHOR]

The excited states in 127I were investigated via in-beam gamma-ray spectroscopy techniques. The excited states were populated in reaction 124Sn (7Li, 4nγ) 127I at beam energy of 33 MeV. Multipolarities and linear polarization measurements were carried out for several transitions belonging to the negative parity band based on the πh11/2[550] 1/2-Nilsson state. The spin and parity have been confirmed for several states. A very weak E2 transitions of 683.7 keV was observed populating the Iπ = 27/2- state at 3958 keV. The Iπ = 27/2- state mainly populated via strong M1 transition of 409.5 keV. These observations indicate a change in the configuration of the Iπ = 29/2- state of this band. [ABSTRACT FROM AUTHOR]

Antimony borate glasses of the composition 30PbO-25Sb2O3-(45-x)B2O3-xEr2O3 with x = 0 to 1.0 in steps of 0.2 were prepared by the melt-quenching method. Various physical parameters. radiative parameters, transition probability A, branching ratio β and the radiative life time τ for different emission levels of Er3+ ions, have been evaluated. [ABSTRACT FROM AUTHOR]