how big is the plant and the container you tried to up pot out of?

If it was a seedling and less than a few inches tall there's a chance she'll make it. There is a reason it's called WEED!!!! Just put her back in the same pot and water her with PH'd water.

Bit of advice tho, Do NOT add any extra fertilizers thinking your gonna help kick new root growth into overdrive. Odds are a strong dose of fert after that kind of trauma could kill her by burning the already damaged roots to a crisp. (Only mention that because a girlfriend of mine nearly wiped her peppers out doing that! )