The Lambda baryon, in its excited state, behaves like a molecule, according to new lattice chromodynamics simulations of the particle’s magnetic structure.

[Phys. Rev. Lett. 114, 132002] Published Wed Apr 01, 2015

]]> This review summarizes baryon resonances from QCD in the large N_{c} expansion and a comparison with lattice is made. These techniques are more intricate for excited baryons with mixed symmetries. Modern approaches which address this problem exist using symmetry arguments as well as consistency with b...

[Rev. Mod. Phys. 87, 211] Published Tue Mar 10, 2015

]]>The ratio of the frequencies of a pulsating star is approximately the golden mean, a clue that the pulsing is fractal in time.

[Phys. Rev. Lett. 114, 054101] Published Tue Feb 03, 2015

]]>A better measure of an iron isotope’s half-life may lead to new ways of dating astrophysical events that unfold over millions of years.

[Phys. Rev. Lett. 114, 041101] Published Wed Jan 28, 2015

]]>