A hadron with a baryon number of 0

Usage examples of mesotron.

Then, instead of clearing a landing area with the usual quick scythe of the mesotron rifles, he polarized the spindizzy screen.

Another rocket, under the guidance of one of Hazleton’s assistants, dived down before it, scything a narrow runway in the jungle with a mesotron rifle—for the bandit towns kept no supersonic no-plant’s-land between themselves and the rank vegetation.

After the molten rock had hardened, the clogged channels were drilled again, with mesotron rifles set to the smallest possible dispersion.

Our lasers and mesotrons and nuclear reactors and neutrino telescopes would have seemed pure magic to the best scientists of the nineteenth century.