Hello Osamu, 

> Who should I ask for the specific luminosity info from experiments? Could 
> anybody nominate the persons for STAR and PHENIX?  

STAR specific luminosity plots:
www.physics.ucla.edu/~joanna/WCM_Data

This is done run by run (STAR), fill number is included in
the title of each plot. STAR run number is 30XXYYY where XX=day,
YYY-run number. So to look at plot from e.g. 18January, look at
any of Run30180**_WCM.ps 
This is done for runs where we have reliable luminosity information
from the scalers (11- 23January)

I can prepare this specific luminosity info in any format you like 
(text file instead of ps), just let me know. 

    Regards, Joanna