2,771 research outputs found

    On the Special Significance of the Latest PAMELA Results in Astroparticle Physics

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    In continuation of their earlier measurements, the PAMELA group reported data on antiproton flux and Pˉ/P\bar{P}/P ratios in 2010 at much higher energies. In past we had dealt with these specific aspects of PAMELA data in great detail and each time we captured the contemporary data-trends quite successfully with the help of a multiple production model of secondary antiprotons with some non-standard ilk and with some other absolutely standard assumptions and approximations. In this work we aim at presenting a comprehensive and valid description of all the available data on antiproton flux and the nature of Pˉ/P\bar{P}/P ratios at the highest energies reported so far by the PAMELA experiment in 2010. The main physical implication of all this would, in the end, be highlighted.Comment: 8 pages, 6 figure

    Production of J/Ψ\Psi-Particles at RHIC and LHC energies: An Alternative `Psi'-chology

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    We attempt here to understand successfully some crucial aspects of J/ΨJ/\Psi-production in some high energy nuclear collisions in the light of a non-standard framework outlined in the text. It is found that the results arrived at with this main working approach here is fairly in good agreement with both the measured data and the results obtained on the basis of some other models of the `standard' variety. Impact and implications of this comparative study have also been precisely highlighted in the end.Comment: 14 pages, 7 figures, to appear in Open Journal of Microphysics. arXiv admin note: substantial text overlap with arXiv:0906.2612, arXiv:1110.5582, and overlap with arXiv:1103.6269, arXiv:1007.451
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