33.3 MB (1.7 MB compressed)
2812 x 4142 pixels
23.9 x 35.1 cm ⏐ 9.4 x 13.8 in (300dpi)
JOHN GIANNICCHI / SCIENCE PHOTO LIBRARY JOHN GIANNICCHI / SCIENCE PHOTO LIBRARY
First observation of omega-minus particle. In this historic photograph from the 80-inch (200cm) bubble chamber at the Brookhaven National Laboratory, a negative kaon enters at bottom left & collides with a proton in the chamber's hydrogen to produce 3 particles, including the omega-minus, which consists of three strange quarks. The omega travels a short distance before decaying into a negative pion, which veers to the right across the bottom part of the picture, & a neutral xi particle which leaves no track.
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