American Journal of Modern Physics

Volume 2, Issue 1, January 2013

  • MSSM Neutral Higgs Production Cross Section Via Gluon Fusion and Bottom Quark Fusion at NNLO in QCD

    Tetiana Obikhod

    Issue: Volume 2, Issue 1, January 2013
    Pages: 1-6
    Received: 29 December 2012
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    Abstract: MSSM Higgs production cross section in bottom-quark annihilation is evaluated at next-to-next-to-leading order (NNLO) in QCD. Scale dependence for both the factorization and renormalization scales for center of mass energies 7, 8 TeV was found. With the help of computer program HIGLU the neutral MSSM Higgs production cross section via gluon fusion ... Show More
  • Rayleigh Waves in a Non-Homogeneous, Thermo, Magneto, Prestressed Granular Material with Variable Density under the Effect of Gravity

    Rajneesh Kakar, Shikha Kakar

    Issue: Volume 2, Issue 1, January 2013
    Pages: 7-20
    Received: 20 December 2012
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    Abstract: The effect of various inhomogeneity factors on propagation of Rayleigh waves in prestressed elastic granular medium are investigated. Inhomogeneities have been assumed to vary exponentially with depth. Lame’s potential is used to solve the problem. Some special cases have also been deduced. Dispersion curves are computed numerically and presented g... Show More
  • A Method for Analyzing Physical Processes at the Vortex Front in High-Temperature Superconductors

    Khalil Rostami

    Issue: Volume 2, Issue 1, January 2013
    Pages: 21-33
    Published: 10 January 2013
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    Abstract: A method of simultaneous analysis of the magnetic and crystalline microstates of superconductors is proposed to find out the specific features of interaction between the crystalline and magnetic microstructures of polycrystalline HTSCs. Qualitatively new results are obtained for samples with different microstructures. For example, regular steps are... Show More
  • Depolarization of the Resonance Line of C4+ due to the Electron Beam Density Effect

    Zeyneb BEDRANE

    Issue: Volume 2, Issue 1, January 2013
    Pages: 34-37
    Published: 10 January 2013
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    Abstract: We investigate theoretically the linear polarization of the Helium-like resonance line 1s2p 1P1 1s2 1S0 emitted from C4+ ions using a steady-state collisional-radiative model, taking into account both the excitation from the ground level 1s2 1S0 and the metastable level 1s2s 1S0 in the population of the 1s2p 1P1 upper level of the resonance line. ... Show More