Courier

semileptonic

no hyphen

Synchrotron-light for Experimental Science and Applications in the Middle East

Spell out in first use then use acronym for the CERN Courier

Stanford Linear Accelerator Center, US (now named SLAC National Accelerator Laboratory)

Acronym doesn't need spelling out for the CERN Courier

Sudbury Neutrino Observatory

Spell out in first use then use acronym for the CERN Courier

for singular and plural

use ndash

Scientific Policy Committee

Spell out in first use then use acronym for the CERN Courier

Stanford Positron Electron Asymmetric Rings (SLAC)

Acronym doesn’t need spelling out for the CERN Courier

Super Proton Synchrotron

Acronym doesn't need spelling out for the CERN Courier

Caps when referring to the theory of particle physics.

The Standard Model is a theory that describes particle physics. The MacBook is a standard model of computer.

Add a hyphen when using the term as a compound adjective:

The results of the experiment were consistent with Standard-Model predictions.

Avoid abbreviating Standard Model to SM. It’s irritating to the reader to have to check back on unnecessary abbreviations.