2,332 research outputs found
Precision measurements in nuclear {\beta}-decay with LPCTrap
The experimental achievements and the current program with the LPCTrap device
installed at the LIRAT beam line of the SPIRAL1-GANIL facility are presented.
The device is dedicated to the study of the weak interaction at low energy by
means of precise measurements of the {\beta}-{\nu} angular correlation
parameter. Technical aspects as well as the main results are reviewed. The
future program with new available beams is briefly discussed.Comment: Annalen der Physik (2013
Résultats de l’enquête internationale 2012 « Quelles activités, quels processus, quelles méthodes, quels systèmes », Observatoire International du Contrôle de Gestion
International audienc
Résultats de l’Enquête internationale 2013 « Quelles activités, quels processus, quelles méthodes, quels systèmes »
International audienc
Studying minijets via the dependence of two-particle correlation in azimuthal angle
Following my previous proposal that two-particle correlation functions can be
used to resolve the minijet contribution to particle production in minimum
biased events of high energy hadronic interactions, I study the and
energy dependence of the correlation. Using HIJING Monte Carlo model, it is
found that the correlation in azimuthal angle between
two particles with resembles much like two back-to-back jets as
increases at high colliding energies due to minijet production. It
is shown that , which is related to the relative fraction of
particles from minijets, increases with energy. The background of the
correlation for fixed also grows with energy due to the increase of
multiple minijet production. Application of this analysis to the study of jet
quenching in ultrarelativistic heavy ion collisions is also discussed.Comment: 11 pages Latex text and 8 ps figures, LBL-3349
On substitutions closed under derivation: examples
We study infinite words fixed by a morphism and their derived words. A
derived word is a coding of return words to a factor. We exhibit two examples
of sets of morphisms which are closed under derivation --- any derived word
with respect to any factor of the fixed point is again fixed by a morphism from
this set. The first example involves standard episturmian morphisms, and the
second concerns the period doubling morphism.Comment: 10 pages, 1 figures, submitted to Words 201
Entanglement Degree of Parasupersymmetric Coherent States of Harmonic Oscillator
We study the boson-parafermion entanglement of the parasupersymmetric
coherent states of the harmonic oscillator and derive the degree of
entanglement in terms of the concurrence. The conditions for obtaining the
maximal entanglement is also examined, and it is shown that in the usual
supersymmetry situation we can obtain maximally entangled Bell states.Comment: 8 pages, 1 figur
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