Particle Tracks (image) DOE/Brookhaven National Laboratory Share Print E-Mail Caption Telltale signs of a lambda hyperon (Λ) decaying into a proton (p) and a pion (π-) as tracked by the Time Projection Chamber of the STAR detector. Because the proton comes out nearly aligned with the hyperon's spin direction, tracking where these 'daughter' protons strike the detector can be a stand-in for tracking how the hyperons' spins are aligned. Credit Brookhaven National Laboratory Usage Restrictions OK for use with stories about this research Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.