D-s meson

noun Physics.

a positively charged meson having a mass 3852 times that of the electron and a mean lifetime of approximately 4.7 X 10-13 seconds.

Also called D-s particle.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

d-s particle in Science

D-s particle

[dē′ĕs′]

A positively charged meson having a mass 3,852 times that of the electron and a mean lifetime of approximately 4.7 X 10-13 seconds. See Table at subatomic particle.