Question
Two answers required. Collisions of these two particles were detected by early B factories like the BaBar experiment. These two particles interact in Bhabha scattering. Blackett and Occhialini’s discovery of one of these particles by observing its curving relative to the other was scooped by a scientist who observed their tracks from cosmic rays in a (*) cloud chamber. Radiotracers like carbon-11 emit one of these particles whose interaction with the other is detected by gamma cameras. These two particles correspond to opposite-sign solutions to the Dirac equation according to hole theory. These two particles have opposite charges with magnitudes equal to the elementary charge. For 10 points, name this negatively-charged nucleus-orbiting fermion and its antiparticle. ■END■
Buzzes
Player | Team | Opponent | Buzz Position | Value |
---|---|---|---|---|
Ali Hamzeh | Kinkaid | Troy | 24 | 0 |
Sam Macchi | Belmont | Hunter A | 43 | 20 |
Aatreyo Bhattacharyya | Mira Loma | Thomas Jefferson C | 46 | 20 |
Vardhan Agnihotri | St. Mark's | Winston Churchill A | 57 | 10 |
Shreyas Singh | University Lab | Plymouth | 86 | 10 |
Yashwanth Bajji | Troy | Kinkaid | 114 | 10 |