The pan-European Stoxx 600 was around 0.1% lower at 8:27 a.m. in London (4:27 a.m. ET).LONDON — European stocks opened slightly lower on Thursday as investors digest the U.S. Federal Reserve's latest rate cut and Swiss central bank's decision to hold rates.Switzerland's central bank published its latest monetary policy decision on Thursday and left rates unchanged at 0% citing inflation coming in slightly lower than expected.Global economic growth was stronger than expected in the third quarter, the Swiss N ...