Now, the LHC is set to return in 2015 nearly twice as powerful as its first run from 2010 to 2013. "Doubling the energy will have a huge impact on the search for new particles at LHC," said experimental particle physicist Gabriella Sciolla, of Brandeis University in Waltham, Massachusetts, who works on the ATLAS experiment at the LHC. "The higher the energy, the heavier the particle one can possibly produce."