We have performed a dense core survey toward the Infrared Dark Cloud G14.225-0.506 at 3 mm continuum emission with the Atacama Large Millimeter/Submillimeter Array ( ALMA ) .
This survey covers the two hub-filament systems with an angular resolution of \sim 3 \arcsec ( \sim 0.03 pc ) .
We identified 48 dense cores .
Twenty out of the 48 cores are protostellar due to their association with young stellar objects ( YSOs ) and/or X-ray point-sources , while the other 28 cores are likely prestellar and unrelated with known IR or X-ray emission .
Using APEX 870 \mu m continuum emission , we also identified the 18 clumps hosting these cores .
Through virial analysis using the ALMA N _ { 2 } H ^ { + } and VLA/Effelsberg NH _ { 3 } molecular line data , we found a decreasing trend in the virial parameter with decreasing scales from filaments to clumps , and then to cores .
The virial parameters of 0.1 - 1.3 in cores , indicate that cores are likely undergoing dynamical collapse .
The cumulative Core Mass Function ( CMF ) for the prestellar cores candidates has a power law index of \alpha = 1.6 , with masses ranging from 1.5 to 22 M _ { \odot } .
We find no massive prestellar or protostellar cores .
Previous studies suggest that massive O-tpye stars have not been produced yet in this region .
Therefore , high-mass stars should be formed in the prestellar cores by accreting a significant amount of gas from the surrounding medium .
Another possibility is that low-mass YSOs become massive by accreting from their parent cores that are fed by filaments .
These two possibilities might be consistent with the scenario of global hierarchical collapse .