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http://hdl.handle.net/123456789/2386| Title: | Observation of Transverse Λ/¯Λ Hyperon Polarization in e+e− Annihilation at Belle |
| Authors: | Bhardwaj, V. |
| Keywords: | Quantum Chromodynamics Hyperon Polarization |
| Issue Date: | 2019 |
| Publisher: | American Physical Society |
| Citation: | Physical Review Letters,122(4) |
| 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. |
| Description: | Only IISERM authors are available in the record. |
| URI: | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.042001 http://hdl.handle.net/123456789/2386 |
| Appears in Collections: | Research Articles |
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