20 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

    On Production of Hadrons in Proton-Proton Collisions at RHIC and LHC Energies and an Approach

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    From the very early days of Particle Physics, both experimental and theoretical studies on proton-proton collisions had occupied the center-stage of attention for very simple and obvious reasons. And this intense interest seems now to be at peak value with the onset of the Large Hadron Collider (LHC)-studies at TeV ranges of energies. In this work, we have chosen to analyse the inclusive cross-sections, the rapidity density, the K/Ï€K/\pi and p/Ï€p/\pi-ratio behaviours and the -values, in the light of the Sequential Chain Model (SCM). And the limited successes of the model encourage us to take up further studies on several other aspects of topmost importance in particle physics with the same approach.Comment: 14 pages, 3 tables, 7 figures; to appear in Journal of Modern Physic
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