% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Haidenbauer:1008862, author = {Haidenbauer, Johann and Meißner, Ulf-G.}, title = {$\Lambda {\bar{\Lambda }}$ final-state interaction in the reactions $e^+e^- \rightarrow \phi {\Lambda }{\bar{{\Lambda }}}$ and $e^+e^- \rightarrow \eta {\Lambda }{\bar{{\Lambda }}}$}, journal = {The European physical journal / A}, volume = {59}, number = {6}, issn = {1434-6001}, address = {Heidelberg}, publisher = {Springer}, reportid = {FZJ-2023-02515}, pages = {136}, year = {2023}, abstract = {Near-threshold ΛΛ¯ mass spectra for the reactions e+e−→ηΛΛ¯ and e+e−→ϕΛΛ¯ are investigated with an emphasis on the role played by the interaction in the ΛΛ¯ system. A variety of ΛΛ¯ potential models is employed that have been established in the analysis of data on pp¯→ΛΛ¯ in the past. It is shown that the near-threshold enhancement observed for the two e+e− reactions can be reproduced by considering the ΛΛ¯ final-state interaction in the partial waves suggested by the helicity-angle analysis of the experiments. For e+e−→ηΛΛ¯ the same ΛΛ¯ S-wave interaction as in e+e−→ΛΛ¯ is relevant and with it a consistent description of the pertinent measurements can be achieved. It is pointed out that a nonzero threshold cross section as observed for the latter reaction is not supported by the new ηΛΛ¯ data.}, cin = {IAS-4 / IKP-3}, ddc = {530}, cid = {I:(DE-Juel1)IAS-4-20090406 / I:(DE-Juel1)IKP-3-20111104}, pnm = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) / DFG project 196253076 - TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik (196253076)}, pid = {G:(DE-HGF)POF4-5111 / G:(GEPRIS)196253076}, typ = {PUB:(DE-HGF)16}, UT = {WOS:001018455900002}, doi = {10.1140/epja/s10050-023-01017-4}, url = {https://juser.fz-juelich.de/record/1008862}, }