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- Centre National de la Recherche ScientifiqueFR640 papers
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79 papers · 1 filter
Properties of Ly-alpha and Gamma Ray Burst selected starbursts at high redshifts
J. P. U. Fynbo, B. Krog, K. Nilsson +6
Selection of starbursts through either deep narrow band imaging of redshifted Ly-alpha emitters, or localisation of host galaxies of gamma-ray bursts both give access to starburst…
An alternative approach to homotopy operations
Marcel Bokstedt, Iver Ottosen
We give a particular choice of the higher Eilenberg-MacLane maps by a recursive formula.This choice leads to a simple description of the homotopy operations for simplicial Z/2-alge…
A spectral sequence for string cohomology
Marcel Bokstedt, Iver Ottosen
Let X be a 1-connected space with free loop space LX. We introduce two spectral sequences converging towards H^*(LX;Z/p) and H^*((LX)_hT;Z/p). The E2-terms are certain non Abelian…
Cosmic ray strangelets
Jes Madsen
Searching for strangelets in cosmic rays may be the best way to test the possible stability of strange quark matter. I review calculations of the astrophysical strangelet flux in t…
Anatomy of three-body decay II. Decay mechanism and resonance structure
E. Garrido, D. V. Fedorov, A. S. Jensen +1
We use the hyperspherical adiabatic expansion method to discuss the the two mechanisms of sequential and direct three-body decay. Both short-range and Coulomb interactions are incl…
Anatomy of three-body decay I. Schematic models
E. Garrido, D. V. Fedorov, A. S. Jensen +1
Sequential three-body decay proceeds via spatially confined quasi-stationary two-body configurations. Direct three-body decay populates the three-body continuum without intermediat…