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  • 1
    Electronic Resource
    Electronic Resource
    Photoacoustic investigation of low optical absorption in several nonlinear-optical crystals (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 586-589 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We use developed high-sensitivity photoacoustic cell to determine the absorption coefficient in crystals of pure LiNbO3, Mg-doped LiNbO3, Fe-doped LiNbO3, KH2PO4, and KD2PO4 at the wavelengths of 1060.0, 632.8, 514.5, 488.0 nm. The experimental results are in good agreement with those measured by the laser calorimetric method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.350410
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A new approach to evaluate nuclear medium effects (1994)
    Springer
    The European physical journal 350 (1994), S. 65-69 
    Details
    ISSN: 1434-601X
    Keywords: 21.30.+y ; 25.80.N ; 11.30.Rd
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The effect of the nuclear medium is considered in terms of an effective pion background field and a new way of evaluation is proposed. Namely, in the scattering of a kaon from a nucleon in the nuclear matter, the effect of the classical pion cloud is attributed to the individual nucleon through a background field termu(x) in the extended Dirac equation. By employing several ansatz for the pion field, the agreement between the calculated result and experimental data is obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01285054
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Inelastic final-state interactions in B → VV →π K processes (1999)
    Springer
    The European physical journal 4 (1999), S. 91-96 
    Details
    ISSN: 1434-601X
    Keywords: PACS:13.25.Hw Decays of bottom mesons – 13.75.Lb Meson-meson interaction – 11.30.Er Charge conjugation, parity, time reversal, and other discrete symmetries – 13.40.Hq Electromagnetic decays
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We study the final-state interactions in B →π K decays through B → VV →π K processes where the inelastic rescattering occurs via single pion exchange. The next-to-leading order low-energy effective Hamiltonian and Bauer-Stech-Wirbel (BSW) model are used to evaluate the weak transition matrix elements and final-state interactions. We found that the final-state interaction effects in B →ρ K*→π K processes are significant. The Fleischer-Mannel relation for the Cabibbo-Kobayashi-Maskawa (CKM) angle γ can be significantly modified.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050207
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Comment on “a unified scheme for flavored mesons and baryons” (2000)
    Springer
    The European physical journal 7 (2000), S. 107-108 
    Details
    ISSN: 1434-601X
    Keywords: PACS: 12.10.Dm Unified theories and models of strong and electroweak interactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We indicate the inconsistencies and mistakes in the paper [1] and conclude that their numerical results should be recalculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050017
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  • 5
    Electronic Resource
    Electronic Resource
    Gluonic mesons in $J/\psi$ radiative decay (1998)
    Springer
    The European physical journal 1 (1998), S. 579-583 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Two–gluon coupling of gluonic mesons is estimated in a spectator model to be considerably larger than that of $Q\bar{Q}$ . As an example of a gluonic meson that may be produced in $J/\psi$ radiative decay, we analyse $\eta(1760)$ . We deduce from experimental data that its branching ratio to two gluons is bounded, $0.4\pm 0.3 \stackrel{〈}{\scriptstyle \sim} BR(\eta(1760)\rightarrow gg)\stackrel{〈}{\scriptstyle \sim} 0.9\pm 0.3$ , consistent with a gluonic meson, but not compelling it. We propose further tests, and estimate the two–photon coupling of $\eta(1760)$ to be $1.4\pm 0.7$ keV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100520050106
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  • 6
    Electronic Resource
    Electronic Resource
    A possible hidden symmetry and geometrical source of the phase in the CKM matrix (1999)
    Springer
    The European physical journal 9 (1999), S. 437-451 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Based on the present data, the three Cabibbo–Kobayashi–Maskawa (CKM) angles may construct a spherical surface triangle whose area automatically provides a “holonomy” phase. By assuming this geometrical phase to be that in the CKM matrix determined by an unknown hidden symmetry, we compare the theoretical prediction on $\epsilon$ with experimental data and find the two are consistent within error range. The $\alpha,\beta,\gamma$ predicted from this symmetry are also consistent with data. Further applications to the B-physics are briefly discussed. We also suggest restrictions for the Wolfenstein parameters explicitly; the agreement will be tested by more precise measurements in the future.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100520050036
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    Paper (German National Licenses)
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