@article{8a7a0ad3fa574471854a800adc360f2b,
title = "Measurements of weak decay asymmetries of Λ+c → pK0s, Λπ+, Σ+ π0, and Σ0π+",
abstract = "Using e+e- → Λ+cΛ-c production from a 567 pb-1 data sample collected by BESIII at 4.6 GeV, a full angular analysis is carried out simultaneously on the four decay modes of Λ+c → pK0S, Λπ+, Σ+π0, and Σ0π+. For the first time, the Λ+c transverse polarization is studied in unpolarized e+e- collisions, where a nonzero effect is observed with a statistical significance of 2.1σ. The decay asymmetry parameters of the Λ+c weak hadronic decays into pK0S, Λπ+, Σ+π0 and Σ0π+ are measured to be 0.18 ± 0.43(stat) ± 0.14(syst), -0.80 ± 0.11(stat) ± 0.02(syst), -0.57 ± 0.10(stat) ± 0.07(syst), and -0.73 ± 0.17(stat) ± 0.07(syst), respectively. In comparison with previous results, the measurements for the Λπ+ and Σ+π0 modes are consistent but with improved precision, while the parameters for the pK0S and Σ0π+ modes are measured for the first time.",
author = "\{BESIII Collaboration\} and M. Ablikim and Achasov, \{M. N.\} and P. Adlarson and S. Ahmed and M. Albrecht and M. Alekseev and A. Amoroso and An, \{F. F.\} and Q. An and Y. Bai and O. Bakina and \{Baldini Ferroli\}, R. and Y. Ban and K. Begzsuren and Bennett, \{J. V.\} and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and J. Biernat and J. Bloms and I. Boyko and Briere, \{R. A.\} and H. Cai and X. Cai and A. Calcaterra and Cao, \{G. F.\} and N. Cao and Cetin, \{S. A.\} and J. Chai and Chang, \{J. F.\} and Chang, \{W. L.\} and G. Chelkov and Chen, \{D. Y.\} and G. Chen and Chen, \{H. S.\} and Chen, \{J. C.\} and Chen, \{M. L.\} and Chen, \{S. J.\} and Chen, \{Y. B.\} and W. Cheng and G. Cibinetto and F. Cossio and Cui, \{X. F.\} and Dai, \{H. L.\} and Dai, \{J. P.\} and Dai, \{X. C.\} and A. Dbeyssi and D. Dedovich and Deng, \{Z. Y.\}",
note = "Publisher Copyright: {\textcopyright} 2019 authors.",
year = "2019",
month = oct,
day = "14",
doi = "10.1103/PhysRevD.100.072004",
language = "English",
volume = "100",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "7",
}