The rifleman was stationed near Cu Chi and was part of Alpha Company, for whom he walked point or flank for 63 days.

BBC: Return to Vietnam

Vega is not actually part of the true Greek alphabet (Alpha-Beta) that is so beloved by financial quants etc and yet it fits neatly into the family tree of performance benchmarks.

FORBES: Rogue Trading...Look Past Delta, What About Vega?

Theorists, for their part, have been worrying about what might cause alpha to change, and what change would imply for the stability of its components.

ECONOMIST: Fundamental physics