Study of J/psi and psi (3686) decay to Lambda(Lambda)over-bar and Sigma(0)(Sigma)over-tilde(0) final states
- Ablikim, M.
- Achasov, M. N.
- Ahmed, S.
- Albrecht, M.
- Amoroso, A.
- An, F. F.
- An, Q.
- Bai, J. Z.
- Bai, Y.
- Bakina, O.
- Ferroli, R. Baldini
- Ban, Y.
- Bennett, D. W.
- Bennett, J. V.
- Berger, N.
- Bertani, M.
- Bettoni, D.
- Bian, J. M.
- Bianchi, F.
- Boger, E.
- Boyko, I.
- Briere, R. A.
- Cai, H.
- Cai, X.
- Cakir, O.
- Calcaterra, A.
- Cao, G. F.
- Cetin, S. A.
- Chai, J.
- Chang, J. F.
- Chelkov, G.
- Chen, G.
- Chen, H. S.
- Chen, J. C.
- Chen, M. L.
- Chen, S. J.
- Chen, X. R.
- Chen, Y. B.
- Chu, X. K.
- Cibinetto, G.
- Dai, H. L.
- Dai, J. P.
- Dbeyssi, A.
- Dedovich, D.
DOIAbstract
Using 1310.6 x 10(6) J/psi and 447.9 x 10(6) psi (3686) events collected with the BESIII detector at the BEPCII e(+)e(-) collider, the branching fractions and the angular distributions of J/psi and psi (3686) decays to Lambda(Lambda) over bar and Sigma(0)(Sigma) over tilde (0) final states are measured. The branching fractions are determined, with much improved precision, to be 19.43 +/- 0.03 +/- 0.33, 11.64 +/- 0.04 +/- 0.23, 3.97 +/- 0.02 +/- 0.12 and 2.44 +/- 0.03 +/- 0.11 for J/psi -> Lambda(Lambda) over bar -> Sigma(0)(Sigma) over tilde (0) , psi (3686) -> Lambda(Lambda) over bar and psi (3686) -> Sigma(0)(Sigma) over tilde (0), respectively. The polar angular distributions of psi (3686) decays are measured for the first ti...
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