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SUMMARY:Polarization measurement of $\\Lambda$- and $\\bar{\\Lambda}$-hype
 rons formed by the interaction of $K^{-}$- and $\\pi^{-}$-mesons with nucl
 ei at the SPASCHARM facility at the U-70 accelerator
DTSTART;VALUE=DATE-TIME:20241023T153500Z
DTEND;VALUE=DATE-TIME:20241023T155000Z
DTSTAMP;VALUE=DATE-TIME:20260819T052902Z
UID:indico-contribution-4366@cern.ch
DESCRIPTION:Speakers: Vyacheslav Moiseev (NRC «Kurchatov Institute» - IH
 EP)\nThe first results on the polarization of inclusively produced $\\Lamb
 da$-hyperons in the $K^{-}$- and $\\pi^{-}$-beams and $\\bar{\\Lambda}$-hy
 perons in the $\\pi^{-}$-beam with a momentum of 26.5 GeV/$c$ were obtaine
 d at the SPASCHARM facility at the U-70 accelerator complex in Protvino. F
 or the data on the $K^{-}$-meson beam\, a noticeable positive polarization
  is observed in the region of large values of the Feynman variable $x_F$ a
 nd the transverse momentum $p_T$\, which was measured for the first time o
 n nuclei. The polarization of $\\Lambda$- and $\\bar{\\Lambda}$-hyperons i
 n the $\\pi^{-}$-beam does not exceed several percent in most of the studi
 ed kinematic region\, with the exception of the region $p_T>1\\ \\text{GeV
 }/c$\, where the $\\Lambda$ polarization is $23\\pm 9$ %.\n\nhttps://indic
 o.particle.mephi.ru/event/436/contributions/4366/
LOCATION: Petrovskiy 2
URL:https://indico.particle.mephi.ru/event/436/contributions/4366/
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