Search for the weak decays J/psi -> D-s(()*()-) e( )nu(e) c.c.

Ablikim M^*; Achasov M N; Ai X C; Albayrak O; Albrecht M; Ambrose D J; Amoroso A; An F F; An Q; Bai J Z; Ferroli R Baldini; Ban Y; Bennett D W; Bennett J V; Bertani M; Bettoni D; Bian J M; Bianchi F; Boger E; Bondarenko O; Boyko I; Briere R A; Cai H; Cai X; Cakir O; Calcaterra A; Cao G F; Cetin S A; Chang J F; Chelkov G; Chen G; Chen H S; Chen H Y; Chen J C; Chen M L; Chen S J; Chen X; Chen X R; Chen Y B; Cheng H P; Chu X K; Chu Y P; Cibinetto G; Cronin Hennessy D; Dai H L; Dai J P

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wuhan univ; univ chinese acad sci; huangshan coll; cent china normal univ; univ south china; beihang univ; 湖南大学; nankai univ; guangxi univ; zhejiang univ; nanjing univ; perugia; soochow univ; nanjing normal univ; shanghai jiao tong univ; henan normal univ; shandong univ; lanzhou univ; henan univ; hangzhou normal univ; guangxi normal univ; hunan univ; peking univ; tsinghua univ; liaoning univ; zhengzhou univ

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Using a sample of 2.25 x 10(8) J/psi events collected with the BESIII detector at the BEPCII collider, we search for the J/psi semileptonic weak decay J/psi -> D-s(-) e(+)nu(e) +c.c. with a much higher sensitivity than previous searches. We also perform the first search for J/psi -> D-s(*-) e(+) nu(e) + c.c. No significant excess of a signal above background is observed in either channel. At the 90% confidence level, the upper limits are determined to be B(J/psi -> D-s(-) e(+) nu(e) + c.c.) < 1.3 x 10(-6) and B(J/psi -> D-s*(-) e(+) nu(e) + c.c.) < 1.8 x 10(-6), respectively. Both are consistent with Standard Model predictions.

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