Particle Physics

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INSIDE A PENTAQUARK  Two particles discovered at the Large Hadron Collider are made up of five quarks: two up (u), one down (d), one charm (c) and one anticharm (c̅).

CMS collision illustration

BACK TO WORK  The CMS detector tracks the trajectories of particles (yellow and red lines) created in proton collisions at the Large Hadron Collider on June 3 — the first day of data collection after more than two years of upgrades. The green and blue bars represent the amount of energy deposited by different types of particles.

effects of radiation on the brain

BRAIN ZAP  After radiation exposure, mouse dendrites (green) in the medial prefrontal cortex were shorter and branched less than those of mice not exposed to radiation, as seen in this digital reconstruction. Exposed dendrites also had fewer docking sites (red) that detect messages from other cells. 

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