Options
Partial wave analysis of the charmed baryon hadronic decay Λc+ → Λπ <sup>+</sup> π <sup>0</sup>
Date Issued
01-12-2022
Author(s)
Ablikim, M.
Achasov, M. N.
Adlarson, P.
Albrecht, M.
Aliberti, R.
Amoroso, A.
An, M. R.
An, Q.
Bai, X. H.
Bai, Y.
Bakina, O.
Baldini Ferroli, R.
Balossino, I.
Ban, Y.
Batozskaya, V.
Becker, D.
Begzsuren, K.
Berger, N.
Bertani, M.
Bettoni, D.
Bianchi, F.
Bloms, J.
Bortone, A.
Boyko, I.
Briere, R. A.
Brueggemann, A.
Cai, H.
Cai, X.
Calcaterra, A.
Cao, G. F.
Cao, N.
Cetin, S. A.
Chang, J. F.
Chang, W. L.
Chelkov, G.
Chen, C.
Chen, Chao
Chen, G.
Chen, H. S.
Chen, M. L.
Chen, S. J.
Chen, S. M.
Chen, T.
Chen, X. R.
Chen, X. T.
Chen, Y. B.
Chen, Z. J.
Cheng, W. S.
Choi, S. K.
Chu, X.
Cibinetto, G.
Cossio, F.
Cui, J. J.
Dai, H. L.
Dai, J. P.
Dbeyssi, A.
de Boer, R. E.
Dedovich, D.
Deng, Z. Y.
Denig, A.
Denysenko, I.
Destefanis, M.
De Mori, F.
Ding, Y.
Dong, J.
Dong, L. Y.
Dong, M. Y.
Dong, X.
Du, S. X.
Egorov, P.
Fan, Y. L.
Fang, J.
Fang, S. S.
Fang, W. X.
Fang, Y.
Farinelli, R.
Fava, L.
Feldbauer, F.
Felici, G.
Feng, C. Q.
Feng, J. H.
Fischer, K.
Fritsch, M.
Fritzsch, C.
Fu, C. D.
Gao, H.
Gao, Y. N.
Gao, Yang
Garbolino, S.
Garzia, I.
Ge, P. T.
Ge, Z. W.
Geng, C.
Gersabeck, E. M.
Gilman, A.
Goetzen, K.
Gong, L.
Gong, W. X.
Gradl, W.
Greco, M.
Abstract
Based on e+e− collision samples corresponding to an integrated luminosity of 4.4 fb−1 collected with the BESIII detector at center-of-mass energies between 4.6 GeV and 4.7 GeV, a partial wave analysis of the charmed baryon hadronic decay Λc+→ Λπ+π0 is performed, and the decays Λc+→ Λρ(770)+ and Λc+→ Σ(1385)π are studied for the first time. Making use of the world-average branching fraction B(Λc+→Λπ+π0), their branching fractions are determined to beB(Λc+→Λρ(770)+)=(4.06±0.30±0.35±0.23)×10−2,B(Λc+→Σ(1385)+π0)=(5.86±0.49±0.52±0.35)×10−3,B(Λc+→Σ(1385)0π+)=(6.47±0.59±0.66±0.38)×10−3,where the first uncertainties are statistical, the second are systematic, and the third are from the uncertainties of the branching fractions B(Λc+→Λπ+π0) and B(Σ (1385) → Λ π). In addition, the decay asymmetry parameters are measured to be αΛρ(770)+ = − 0.763 ± 0.053 ± 0.045, αΣ(1385)+π0=−0.917±0.069±0.056, and αΣ(1385)0π+=−0.789±0.098±0.056. [Figure not available: see fulltext.]
Volume
2022