We conducted a time-resolved photometric campaign of the helium dwarf nova , 2003aw in 2004 May–June .
2003aw stayed at 14.7–15.7 mag for the first several days during this campaign , which is the plateau phase of this superoutburst .
This variable then rapidly decayed to \sim 18.0 mag , still brighter by about 2 mag than its quiescence magnitude , and maintained this brightness for about 20 days , having short flares of \sim 2 mag .
A long fading tail followed it .
We detected superhumps with a period of 0.02357 ( 4 ) d [ = 2036 ( 3 ) s ] during the plateau phase .
The whole light curve of the superoutburst in 2003aw , taking into account the present data and those in the literature , perfectly resembles that of the 1996-1997 superoutburst of the peculiar WZ Sge-type hydrogen-rich dwarf nova , EG Cnc .