Courier

QED

Quantum electrodynamics

Acronym doesn't need spelling out for the CERN Courier

Quark–gluon plasma

Lower case, note the en dash

Spell out in full for the CERN Courier

use hyphen

no hyphen, no space, not "red shift" or "red-shift"

Relativistic Heavy Ion Collider (at Brookhaven)

No "the" before RHIC

Acronym doesn't need spelling out for the CERN Courier

no hyphen, not "road-map"

Regional Office for Science and Technology in Europe

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

Rheinisch-Westfälische Technische Hochschule Aachen, a research university in Germany

Acronym doesn’t need spelling out for the CERN Courier

use hyphen