Spatial structure of superconducting correlations of $$d_{x^2 - y^2 } $$ symmetry in high-temperature superconductors

The spatial structure of the correlation function of the order parameter of the $ d_{x^2 - y^2 } $ d_{x^2 - y^2 } symmetry has been investigated within the t-J model in the generalized mean field approximation taking into account the “no-double occupancy” constraint due to strong electron correlations. A slow decay of the correlation function to the thirtieth coordination sphere has been found. The limitation by pairing of only the nearest neighbors makes it possible to take into account less than 17% of the superconducting correlations.     

Self-Consistent Calculations of Probabilities for Transitions between $${3}_{1}^{{-}}$$ and $${2}_{1}^{{+}}$$ One-Phonon States in Tin Isotopes

Physics of Atomic Nuclei - For the first time, a self-consistent method for studying second-order anharmonic effects within quantum many-body theory is applied to calculating probabilities for...     

Study of the Process $${e}^{{+}}{e}^{{-}}{\to}{\eta\pi}^{{0}}{\gamma}$$ in the Cossision-Energy Range of $$\sqrt{{s}}{=}{1.05{-}2.00}$$ GeV

Physics of Atomic Nuclei - The process $$e^{+}e^{-}\to\eta\pi^{0}\gamma$$ is studied in the range of center-of-mass (c.m.) collision energies between 1.05 and 2.00 GeV on the basis of data...     

Measurement of the Cross Section for the Process $${e^{+}e^{-}}{\to}{K}^{{+}}{K}^{{-}}{\pi}^{{0}}$$ with the SND Detector at Collision Energies of $$\sqrt{{s}}{=}{1.3{-}2.0}$$ GeV in the Center-of-Mass Frame

Physics of Atomic Nuclei - In an experiment with the SND detector at the VEPP-2000 $$e^{+}e^{-}$$ collider, the cross sections for the processes $$e^{+}e^{-}\to K^{+}K^{-}\pi^{0}$$ and...     

Branching Ratio and CP Violation in $${B}_{{s}}^{{0}}\rightarrow{\rho}^{{0}}{\phi}$$ Decay in the Framework of QCD Factorization

Physics of Atomic Nuclei - We present an analytic calculation of Branching Ratio (BR) and Charge–Parity (CP) violating asymmetries of the $$B_{s}^{0}$$ -meson decay into the two light vectors...     

Measurement of Cross Sections for the Reactions $${}^{{232}}{\textrm{Th}}({{}^{3}}{\textrm{He}}{,p4n})^{{230}}$$ Pa, $${}^{{232}}{\textrm{Th}}({{}^{3}}{\textrm{He}}{,p2n})^{{232}}$$ Pa,and $${}^{{232}}{\textrm{Th}}({{}^{3}}{\textrm{He}}{,2p+pn})^{{233}}$$ Pa Induced by the Irradiation of a ThO $${}_{2}$$ Target with $${}^{3}$$ He Nuclei

Physics of Atomic Nuclei - The efficiency of employing a beam of intermediate-energy $${}^{3}$$ He particles for the production of the radionuclide $${}^{230}$$ Pa on natural-thorium targets, which...     

Investigation of Excitation of $${K}$$ Isomers $${}^{{179m2}}$$ Hf and $${}^{{180m}}$$ Hf in ( $${\gamma,\gamma^{\prime}}$$ ) Reactions

Physics of Atomic Nuclei - The weighted-average cross sections for $${}^{179m2}$$ Hf and $${}^{180m}$$ Hf population in ( $$\gamma,\gamma^{\prime}$$ ) reactions induced by gamma rays of...     

Hyperfine splitting constants in the optical transition \boldsymbol{{4{f}^{7}} {6{s}^{2}} \;{^{8}{\rm S}_{7/2}} \to {4{f}^{7}} {6{s}6{p}}\; {^{6}{\rm P}_{5/2}} \ {\rm of} \ {^{151-155}{\rm Eu}}} isotopes and hyperfine anomaly

Using the method of laser-induced fluorescence in an atomic beam we have measured the hyperfine splitting constants, A and B, of the ground and excited states of the optical transition 4f ⁷6s ^{2 8}S $_{1/2}\to 4f^{7}$ 6s6p ⁶P_5/2 (564.58 nm) for ^151???155Eu isotopes. For all isotopes, the magnetic dipole constants of the ⁶P_5/2 atomic level are determined to a precision better than 0.04%. The A and B constants for the ground state ⁸S_7/2 of the radioactive ^152,154,155Eu were obtained for the first time with a precision better than 0.5%. Our data along with previous ground state hyperfine structure measurements for the stable europium isotopes allow us to determine the hyperfine anomaly for mentioned Eu isotopes.     

An effect of extra compactified dimensions of space in the molecule $$\hbox {NO}_{{2}}$$ NO 2

The European Physical Journal D - A self-consistent data set, with all the necessary inputs for Monte Carlo simulations of electron transport through gaseous tetrahydrofuran (THF) in the energy...     

Existence and Regularity of Weak Solutions to the Quasi-Geostrophic Equations in the Spaces Lp or $$\dot{H}^{-1/2}$$

In this paper we study the 2D quasi-geostrophic equation with and without dissipation. We give global existence results of weak solutions for an initial data in the space L ^p or . In the dissipative case, when the initial data is in L ^p , p > 2, we give a regularity result of these solutions.     

Decays of(vh_{11/2} ^n )^{10 + } and(\pi d_{5/2} vh_{11/2} ^n )^{25/2 + } isomers in even-A Sn and odd-A Sb nuclei

Isomeric decays in^{116, 118, 120}Sn and^{119, 120}Sb have been studied by measurements of delayedγ-rays following reactions of 26–40 MeV⁷Li ions on Cd targets. A 6.3 μs isomer of \((vh_{11/2} ^n )^{10 + } \) character in¹²⁰Sn is reported. The experimental variation inB(E2, 10⁺ → 8⁺) between \(vh_{11/2} ^n \) states in^{116, 118, 120, 128, 130}Sn is compared with the expected dependence on vh^11/2 subshell occupation number. Isomerism in Sb nuclei is also discussed, and a known high-spin isomer in¹¹⁹Sb is assigned the same seniority-three configuration \((\pi d_{5/2} vh_{11/2} ^n )^{25/2 + } \) as a well-established 340 μs isomer in¹¹⁷Sb.     

Analysis of Angular $$\boldsymbol{t{-}\gamma}$$ Correlations in the Reaction $${}^{\boldsymbol{27}}$$ Al $$\boldsymbol{(\alpha,t)^{28}}$$ Si(2 $${}^{\boldsymbol{+}}$$ )

Physics of Atomic Nuclei - Angular $$t$$ – $$\gamma$$ correlations measured earlier in the reaction $${}^{27}$$ Al $$(\alpha,t)^{28}$$ Si(2 $${}^{+}$$ ) occurring at $$E_{\alpha}=30.3$$ MeV...     

Rapid Communication: $$\Delta v=2$$ seniority changing transitions in yrast $$3^-$$3- states and $$B(\textit{E}3)$$B(E3) systematics of Sn isotopes

Using the transfer matrix method, the effect of temperature on one-dimensional (1D) nanostructure photonic crystal with coupled defects has been investigated. One of the layers of this structure is silver. The complex refractive index of silver is dependent on temperature and wavelength. This structure is tunable with temperature and incident angle. It is found that the number of defect modes is equal to the number of coupled defects in all incident angles for both polarizations. Also by increasing the temperature, due to dissipation, the wavelength of the defect modes increases and the height of the defect modes decreases. The wavelengths of defect modes depend linearly on temperature for both polarizations in all incident angles.