PaperPanorama
FAQ

Nuclear Theory·nucl-th

Monday·February 29, 2016

5 papers—3 primary·2 cross-listed

All5Primary3Cross-lists2
  1. 04

    [Submitted on 26 Feb 2016] (cross-list from physics.comp-ph)

    Generation of random deviates for relativistic quantum-statistical distributions

    Boris Tomášik · Ivan Melo · Jakub Cimerman

    We provide an algorithm for generation of momenta (or energies) of relativistic particles according to the relativistic Bose-Einstein or Fermi-Dirac distributions. The algorithm uses rejection method with effectively selected comparison function so that the acceptance rate of the generated values is always better than 0.9. It might find its use in Monte-Carlo generators of particles from reactions in high-energy physics.

    Comments:
    9 pages, 3 figures
    Subjects:
    Computational Physics (physics.comp-ph); High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1602.08233 [pdf]
    0 citations
  2. 05

    [Submitted on 26 Feb 2016] (cross-list from hep-ph)

    As the Lightest State

    Richard F. Lebed🇺🇸 · Antonio D. Polosa🇮🇹

    The state has recently been demoted by the Particle Data Group from its previous status as the conventional state, largely due to the absence of expected decays. We propose that is actually the lightest state, and calculate the spectrum of such states using the diquark model, identifying many of the observed charmoniumlike states that lack open-charm decay modes as . Among other results, we argue that is a state that has been not been seen in two-photon fusion largely as a consequence of the Landau-Yang theorem.

    Comments:
    9 pages, pdflatex, version accepted for publication by Phys. Rev. D
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1602.08421 [pdf]
    PRD(2016)·97 citations

Affiliations

first authorsco-authorsvia INSPIRE