@article{bd4b544c4df54bd786ecac2753f9334f,
title = "Observation of Transverse Λ / Λ Hyperon Polarization in e+e- Annihilation at Belle",
abstract = "We report the first observation of the spontaneous polarization of Λ and Λ hyperons transverse to the production plane in e+e- annihilation, which is attributed to the effect arising from a polarizing fragmentation function. For inclusive Λ/Λ production, we also report results with subtracted feed-down contributions from Σ0 and charm. This measurement uses a dataset of 800.4 fb-1 collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV. We observe a significant polarization that rises with the fractional energy carried by the Λ/Λ hyperon.",
keywords = "FINAL-STATE INTERACTIONS, SPIN ASYMMETRIES, LAMBDA, GAUGE",
author = "{The BELLE collaboration} and Y. Guan and A. Vossen and I. Adachi and K. Adamczyk and Ahn, {J. K.} and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and I. Badhrees and Bakich, {A. M.} and V. Bansal and P. Behera and C. Bele{\~n}o and M. Berger and V. Bhardwaj and B. Bhuyan and T. Bilka and J. Biswal and A. Bobrov and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and L. Cao and D. {\v C}ervenkov and P. Chang and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Choi, {S. K.} and S. Eidelman and D. Epifanov and N. Gabyshev and A. Garmash and P. Krokovny and D. Matvienko and V. Shebalin and A. Sokolov and Y. Usov and A. Vinokurova and V. Vorobyev and V. Zhilich and V. Zhulanov",
year = "2019",
month = jan,
day = "29",
doi = "10.1103/PhysRevLett.122.042001",
language = "English",
volume = "122",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "4",
}