Some of you might not have awared that the first Nature paper of NTU HEP group (together with the Belle Collaboration) has been published in Nature 20 March 2008 Volume 452 Number 7185, p332, with the title and abstract as follows. -------------------------------------------------------------------------- "Difference in direct charge-parity violation between charged and neutral B meson decays." This study measures direct CP violation in B meson decays. Previous work suggested a difference in the decay of charged and neutral particles, but the large uncertainties on these measurements made it difficult to say whether the difference was real. This study reduces the uncertainty on the charged particle decay rate asymmetry by a factor of 1.7. Although firm conclusions cannot be drawn from this result, the measurement provides stronger evidence for a large deviation in direct CP violation between charged and neutral B-meson decays and possible new sources of CP violation beyond the standard model. doi:10.1038/nature06827 First paragraph | Full Text | PDF See also: News and Views by Peskin | Editor's summary PDF files are attached below --

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