Composite Higgs under LHC Experimental Scrutiny

Light Composite Higgs: Lch @ Lhc

Here I summarize some of the salient features of technicolor theories with technifermions in higher dimensional representations of the technicolor gauge group. The expected phase diagram as function of number of flavors and colors for the two index (anti)symmetric representation of the gauge group is reviewed. After having constructed the simplest walking technicolor theory one can show that it...

Host specificity under molecular and experimental scrutiny.

Current research on the patterns and processes underpinning host specificity in parasites goes well beyond field observations. Molecular studies are used increasingly on a range of parasite taxa to uncover levels of specificity not recognized previously. By contrast, the widespread use of experimental infections indicates that new host-parasite combinations are achieved easily in the laboratory...

Under Scrutiny

LHC Higgs Boson searches

A summary of the Higgs boson searches by the ATLAS and CMS collabrations using 1 f b −1 of LHC data is presented, concentrating on the Standard Model Higgs boson. Both experiments have the sensitivity to exclude at 95% CL a Standard Model Higgs boson in most of the Higgs boson mass region between about 130 GeV and 400 GeV. The observed data allow the exclusion of a Higgs Boson of mass 155 GeV t...

Folic acid under scrutiny

A consideration of the absorption and metabolism of folic acid in human subjects is timely, owing to the recent recommendation by the UK Government’s Scientific Advisory Committee on Nutrition that a mandatory folic acid fortification programme be implemented in the UK. In this issue of the British Journal of Nutrition, Wright et al. take us through the processes of absorption and metabolism of...