▁The ▁six ▁Time - of - F light ▁( TO F ) ▁detect ors ▁surrounding ▁the ▁H AT PC s ▁and ▁Super F G D ▁are ▁a ▁series ▁of ▁pl astic ▁sc int ill ator ▁layers ▁designed ▁to ▁identify ▁the ▁particle ▁direction ▁sense ▁through ▁the ▁measurement ▁of ▁the ▁time ▁of ▁flight ▁for ▁each ▁crossing ▁track ▁with ▁a ▁timing ▁resolution ▁of ▁the ▁order ▁of ▁ 6 0 0 ▁ps . ▁The ▁cap ability ▁to ▁determine ▁track ▁direction ▁sense ▁has ▁been ▁proven ▁in ▁the ▁actual ▁N D 2 8 0 ▁to ▁be ▁critical ▁to ▁reduce ▁background ▁generated ▁outside ▁the ▁active ▁inner ▁detect ors . ▁ ▁Imp act ▁on ▁Ne ut r ino ▁O sc ill ation ▁Physics ▁ ▁The ▁impact ▁the ▁N D 2 8 0 ▁Up grade ▁will ▁have ▁on ▁the ▁anal ys es ▁at ▁T 2 K ▁is ▁two - fold . ▁First ly , ▁an ▁increase ▁in ▁statistics ▁thanks ▁to ▁the ▁ 2 ▁ton ▁Super F G D ▁target ▁will ▁allow ▁to ▁nearly ▁double ▁the ▁amount ▁of ▁data ▁in ▁certain ▁samples . ▁ ▁Second ly ▁and ▁more ▁relevant , ▁the ▁new ▁configuration ▁will ▁allow ▁for ▁better ▁detection ▁of ▁additional ▁final ▁state ▁particles : ▁high ▁angle ▁particles ▁thanks ▁to ▁the ▁increased ▁angular ▁accept ance , ▁and ▁less - ener get ic ▁particles ▁because ▁of ▁lower ▁detection ▁th resh olds . ▁This ▁det ector ▁accept ance ▁improvement ▁is ▁important ▁to ▁cover ▁almost ▁the ▁same ▁phase ▁space ▁available ▁at ▁the ▁far ▁det ector ▁( SK ). ▁In ▁addition , ▁final ▁state ▁particles ▁will ▁allow ▁prob