Ammar, Raymond G.Baringer, Philip S.Bean, AliceBesson, David ZekeCoppage, DonDarling, C.Davis, Robin E. P.Kotov, S.Kravchenko, I.Kwak, NowhanZhou, L.2014-10-212014-10-211998-04-01M. Bishai et al. ((CLEO Collaboration)). (1998). "Search for the decay B⃗ D(+)(s1) (2536)X." Physical Review D, 57(7):3847. http://dx.doi.org/10.1103/PhysRevD.57.3847.1550-7998https://hdl.handle.net/1808/15342This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.57.3847.We have searched for the decay B⃗ D(+)(s1)(2536)X and measured an upper limit for the inclusive branching fraction of B(B⃗ D(+)(s1)X)<0.96% at the 90% confidence level. This limit is small compared with the total expected B⃗ D(*)D(*)KX rate. Assuming factorization, the D+s1 decay constant is constrained to be f(D(+)(s1))<114 MeV at the 90% confidence level, at least 2.5 times smaller than that of D(+)(s).Article10.1103/PhysRevD.57.3847openAccess