Date: Fri, 3 Jun 2005 19:53:54 +0200 (CEST)
From: Georges Audi <audi@csnsm.in2p3.fr>
To: Recipients of AMDC bulletin: ;
Subject: AMDC - News from the Atomic Mass Data Center

    This special issue of the bulletin of the AMDC is to announce that:

    The LEBIT team at MSU is pleased to inform you that LEBIT is in
    business. Last week they measured the mass of doubly-charged Ca-38
    (T1/2 = 440 ms).

    The resonance shown at:
    http://amdc.in2p3.fr/experimental/LEBIT-38Ca.pdf
    is one of many and the first evaluation of all measurements
    indicates that the statistical mass uncertainty is about 600-700 eV.

    This first direct measurement of the mass of Ca-38 provides an
    improved mass value, making this nuclide suitable for a test
    of the conserved vector current hypothesis.

    The experiment is also the first successful demonstration that
    rare nuclides produced by beam fragmentation at energies of 100
    MeV/u can be slowed down and prepared such that precision
    experiments with low-energy beams are possible.

    The LEBIT team is still in the process of evaluating the data.
    They have made a number of (cross) reference measurements with
    40Ar2+ and H30 which make this essentially a doublet measurement.
    They hope they can push the uncertainty limit further.

    This first real measurement has been obtained only 4-5
    years after starting to build LEBIT trap.