XIAO-GANG HE2018-09-102018-09-101997http://www.scopus.com/inward/record.url?eid=2-s2.0-0042595615&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/332880Color-octet contribution and direct CP violation in B → ψ(ψ′)Xjournal article10.1016/S0370-2693(96)01466-92-s2.0-0042595615