928 research outputs found

    From Coulomb excitation cross sections to non-resonant astrophysical rates in three-body systems: 17^{17}Ne case

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    Coulomb and nuclear dissociation of 17^{17}Ne on light and heavy targets are studied theoretically. The dipole E1 strength function is determined in a broad energy range including energies of astrophysical interest. Dependence of the strength function on different parameters of the 17^{17}Ne ground state structure and continuum dynamics is analyzed in a three-body model. The discovered dependence plays an important role for studies of the strength functions for the three-body E1 dissociation and radiative capture. The constraints on the [s2]/[d2][s^2]/[d^2] configuration mixing in 17^{17}Ne and on pp-wave interaction in the 15^{15}O+pp channel are imposed based on experimental data for 17^{17}Ne Coulomb dissociation on heavy target.Comment: 12 pages, 13 figure

    ΠžΠ±ΡΠ·Π°Π½Π½ΠΎΡΡ‚ΠΈ судСй судов ΠΎΠ±Ρ‰Π΅ΠΉ ΡŽΡ€ΠΈΡΠ΄ΠΈΠΊΡ†ΠΈΠΈ

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    Π£ сучасних ΡƒΠΌΠΎΠ²Π°Ρ… Ρ€ΠΎΠ·Π²ΠΈΡ‚ΠΊΡƒ Π£ΠΊΡ€Π°Ρ—Π½ΠΈ як Π½Π΅Π·Π°Π»Π΅ΠΆΠ½ΠΎΡ—, Π΄Π΅ΠΌΠΎΠΊΡ€Π°Ρ‚ΠΈΡ‡Π½ΠΎΡ— Ρ– ΠΏΡ€Π°Π²ΠΎΠ²ΠΎΡ— Π΄Π΅Ρ€ΠΆΠ°Π²ΠΈ особливої Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚Ρ– Π½Π°Π±ΡƒΠ²Π°Ρ” ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ° конституційно-ΠΏΡ€Π°Π²ΠΎΠ²ΠΎΠ³ΠΎ статусу судів суддів Π·Π°Π³Π°Π»ΡŒΠ½ΠΎΡ— ΡŽΡ€ΠΈΡΠ΄ΠΈΠΊΡ†Ρ–Ρ—. Π— судово-ΠΏΡ€Π°Π²ΠΎΠ²ΠΎΡŽ Ρ€Π΅Ρ„ΠΎΡ€ΠΌΠΎΡŽ особливої ΡƒΠ²Π°Π³ΠΈ Π·Π°ΡΠ»ΡƒΠ³ΠΎΠ²ΡƒΡŽΡ‚ΡŒ обов’язки судів суддів Π·Π°Π³Π°Π»ΡŒΠ½ΠΎΡ— ΡŽΡ€ΠΈΡΠ΄ΠΈΠΊΡ†Ρ–Ρ—.In the modern terms of development of Ukraine as the independent, democratic and legal state of the special actuality is acquired by a problem constitutionally legal to status of courts of judges of general jurisdiction.Π’ Π½Ρ‹Π½Π΅ΡˆΠ½ΠΈΡ… условиях развития Π£ΠΊΡ€Π°ΠΈΠ½Ρ‹ ΠΊΠ°ΠΊ нСзависимого, Π΄Π΅ΠΌΠΎΠΊΡ€Π°Ρ‚ΠΈΡ‡Π½ΠΎΠ³ΠΎ ΠΈ ΠΏΡ€Π°Π²ΠΎΠ²ΠΎΠ³ΠΎ государства особСнной Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ заслуТиваСт ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ° конституционно-ΠΏΡ€Π°Π²ΠΎΠ²ΠΎΠ³ΠΎ статуса судСй судов ΠΎΠ±Ρ‰Π΅ΠΉ ΡŽΡ€ΠΈΡΠ΄ΠΈΠΊΡ†ΠΈΠΈ. Π‘ судСбно-ΠΏΡ€Π°Π²ΠΎΠ²ΠΎΠΉ Ρ€Π΅Ρ„ΠΎΡ€ΠΌΡ‹ особСнного внимания Π·Π°ΡΠ»ΡƒΠΆΠΈΠ²Π°ΡŽΡ‚ обязанности судСй судов ΠΎΠ±Ρ‰Π΅ΠΉ ΡŽΡ€ΠΈΡΠ΄ΠΈΠΊΡ†ΠΈΠΈ

    НСкоторый ΡΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ ΠΎΠΏΠΈΡ‚ формирования судСйского корпуса Π£ΠΊΡ€Π°ΠΈΠ½Ρ‹ ΠΈ Π·Π°Ρ€ΡƒΠ±Π΅ΠΆΠ½Ρ‹Ρ… стран

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    Π£ сучасних ΡƒΠΌΠΎΠ²Π°Ρ… Ρ€ΠΎΠ·Π²ΠΈΡ‚ΠΊΡƒ Π£ΠΊΡ€Π°Ρ—Π½ΠΈ як Π½Π΅Π·Π°Π»Π΅ΠΆΠ½ΠΎΡ—, Π΄Π΅ΠΌΠΎΠΊΡ€Π°Ρ‚ΠΈΡ‡Π½ΠΎΡ— Ρ– ΠΏΡ€Π°Π²ΠΎΠ²ΠΎΡ— Π΄Π΅Ρ€ΠΆΠ°Π²ΠΈ особливої Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚Ρ– Π½Π°Π±ΡƒΠ²Π°Ρ” ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ° формування ΡΡƒΠ΄Π΄Ρ–Π²ΡΡŒΠΊΠΎΠ³ΠΎ корпусу Π£ΠΊΡ€Π°Ρ—Π½ΠΈ Ρ– Π·Π°Ρ€ΡƒΠ±Ρ–ΠΆΠ½ΠΈΡ… ΠΊΡ€Π°Ρ—Π½. Π— судово-ΠΏΡ€Π°Π²ΠΎΠ²ΠΎΡŽ Ρ€Π΅Ρ„ΠΎΡ€ΠΌΠΎΡŽ особливої ΡƒΠ²Π°Π³ΠΈ заслуговує формування ΡΡƒΠ΄Π΄Ρ–Π²ΡΡŒΠΊΠΎΠ³ΠΎ корпусу.In the modern terms of development of Ukraine as the independent, democratic and legal state of the special actuality is acquired by the problem of forming of judge corps of Ukraine and foreign countries. Forming of judge corps deserves with sudovo-pravovoy reform of the special attention.Π’ Π½Ρ‹Π½Π΅ΡˆΠ½ΠΈΡ… условиях развития Π£ΠΊΡ€Π°ΠΈΠ½Ρ‹ ΠΊΠ°ΠΊ нСзависимого, Π΄Π΅ΠΌΠΎΠΊΡ€Π°Ρ‚ΠΈΡ‡Π½ΠΎΠ³ΠΎ ΠΈ ΠΏΡ€Π°Π²ΠΎΠ²ΠΎΠ³ΠΎ государства особСнной Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ заслуТиваСт ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ° формирования судСйского корпуса Π² Π£ΠΊΡ€Π°ΠΈΠ½Π΅ ΠΈ Π² Π·Π°Ρ€ΡƒΠ±Π΅ΠΆΠ½Ρ‹Ρ… странах. Π‘ судСбно-ΠΏΡ€Π°Π²ΠΎΠ²ΠΎΠΉ Ρ€Π΅Ρ„ΠΎΡ€ΠΌΡ‹ особСнного внимания заслуТиваСт Ρ„ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ судСйского корпуса

    Scattering Theory for Jacobi Operators with Steplike Quasi-Periodic Background

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    We develop direct and inverse scattering theory for Jacobi operators with steplike quasi-periodic finite-gap background in the same isospectral class. We derive the corresponding Gel'fand-Levitan-Marchenko equation and find minimal scattering data which determine the perturbed operator uniquely. In addition, we show how the transmission coefficients can be reconstructed from the eigenvalues and one of the reflection coefficients.Comment: 14 page

    Long-Time Asymptotics of Perturbed Finite-Gap Korteweg-de Vries Solutions

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    We apply the method of nonlinear steepest descent to compute the long-time asymptotics of solutions of the Korteweg--de Vries equation which are decaying perturbations of a quasi-periodic finite-gap background solution. We compute a nonlinear dispersion relation and show that the x/tx/t plane splits into g+1g+1 soliton regions which are interlaced by g+1g+1 oscillatory regions, where g+1g+1 is the number of spectral gaps. In the soliton regions the solution is asymptotically given by a number of solitons travelling on top of finite-gap solutions which are in the same isospectral class as the background solution. In the oscillatory region the solution can be described by a modulated finite-gap solution plus a decaying dispersive tail. The modulation is given by phase transition on the isospectral torus and is, together with the dispersive tail, explicitly characterized in terms of Abelian integrals on the underlying hyperelliptic curve.Comment: 45 pages. arXiv admin note: substantial text overlap with arXiv:0705.034

    Spectrum of cosmic rays, produced in supernova remnants

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    Nonlinear kinetic theory of cosmic ray (CR) acceleration in supernova remnants is employed to calculate CR spectra. The magnetic field in SNRs is assumed to be significantly amplified by the efficiently accelerating nuclear CR component. It is shown that the calculated CR spectra agree in a satisfactory way with the existing measurements up to the energy 101710^{17} eV. The power law spectrum of protons extends up to the energy 3Γ—10153\times 10^{15} eV with a subsequent exponential cutoff. It gives a natural explanation for the observed knee in the Galactic CR spectrum. The maximum energy of the accelerated nuclei is proportional to their charge number ZZ. Therefore the break in the Galactic CR spectrum is the result of the contribution of progressively heavier species in the overall CR spectrum so that at 101710^{17} eV the CR spectrum is dominated by iron group nuclei. It is shown that this component plus a suitably chosen extragalactic CR component can give a consistent description for the entire Galactic CR spectrum.Comment: 4 pages with emulateapj, 3 figures, accepted for publication in the Astrophysical Journal Letter
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