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 kinky
superconductors
Researchers working at the Advanced Light Source have discovered, in
three different families of high-temperature superconductors, "kinks"
in the energy spectrum of low-energy electrons — the signature
of coupling between electrons and phonons. Electron-phonon coupling accounts
for low-temperature superconductivity in metals and alloys, but most scientists
did not expect to find it in high-temperature, copper-oxide superconductors.
comparative
genomics at the JGI: an interview
Mice, puffer fish, sea squirts: what
do these creatures have to do with humans? To find out why scientists
are comparing their genomes — and those of many other creatures —
Science Beat interviewed Trevor Hawkins, director of the Joint Genome
Institute; Paul Richardson, JGI's head of functional genomics; and Dan
Rokhsar, JGI's head of computational genomics.
challenging
the standard model of physics
Z particles carry the weak nuclear force, and the measurement of their decay
spells trouble for the theory that has successfully explained fundamental
physics since the 1970s. A Berkeley Lab theorist argues that whether scientists
accept the measurement as valid or dismiss it as an anomaly, the
Standard Model loses.
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