The measurement of the transverse polarization of $\Lambda$ hyperons produced in $nC$ reactions in the EXCHARM experiment

A.N.Aleev et al.

doi:doi:10.1007/s100520000285

2022 Impact factor 4.4

Particles and Fields

Eur. Phys. J. C 13, 427-432
DOI 10.1007/s100520000285

The measurement of the transverse polarization of $\Lambda$ hyperons produced in nC reactions in the EXCHARM experiment

A.N.Aleev ¹ - V.P.Balandin ¹ - E.A.Dvalishvili ¹ - A.N. Gaponenko ¹ - A.V. Gusev ¹ - P.Z.Hristov ¹ - Z.M.Ivanchenko ¹ - I.M. Ivanchenko ¹ - M.N.Kapishin ¹ - N.N.Karpenko ¹ - V.D.Kekelidze ¹ - T.V.Khristova ¹ - Z.I.Kojenkova ¹ - I.G.Kosarev ¹ - Yu.A.Kretov ¹ - A.S.Kurilin ¹ - N.A.Kuz'min ¹ - A.L.Lyubimov ¹ - D.T.Madigojin ¹ - A.S.Mestvirishvili ^1, - N.A.Molokanova ¹ - A.N.Morozov ¹ - Yu.K.Potrebenikov ¹ - A.G.Skripnichuk ¹ - L.A.Slepets ¹ - V.N.Spaskov ¹ - G.T.Tatishvili ¹ - A.L.Tkatchev ¹ - I.P.Yudin ¹ - A.I.Zinchenko ¹ - A.P.Bugorski ² - A.A.Loktionov ³ - T.Ponta ⁴ - T.Preda ⁴ - I.M.Geshkov ⁵ - L.N.Abesalashvili ⁶ - N.S.Amaglobeli ⁶ - B.G.Chiladze ⁶ - R.A.Kvatadze ⁶ - M.V.Kopadze ⁶ - N.L.Lomidze ⁶ - G.I.Nikobadze ⁶ - T.G.Pitskelauri ⁶ - T.S.Grigalashvili ⁷ - I.F.Emel'janchik ⁸ - A.V.Raspereza ^8, - S.V.Sushkov ⁸

¹ Joint Institute of Nuclear Research, Dubna, Russia
² Institute of High Energy Physics, Protvino, Russia
³ High Energy Physics Institute, Academy of Science, Kazakhstan
⁴ Institute of Atomic Physics, Section of High Energy Physics, Bucharest, Rumania
⁵ Institute of Atomic Research and Atomic Energy
⁶ High Energy Physic institute, Tbilisi State University, Tbilisi, Republic of Georgia
⁷ Physics, Georgian Academy of Science, Tbilisi, Republic of Georgia
⁸ Institute of Nuclear Problems of Belarus state University, Minsk, Belarus

Received: 25 August 1999 / Published online: 25 February 2000 - © Springer-Verlag 2000

Abstract
New precise data of the $\Lambda^0$ polarization are obtained in the EXCHARM experiment at the Serpukhov accelerator. The $\Lambda^0$ s have been produced in nC interactions in the neutron energy interval 40-70GeV and detected in the kinematic range of $0.1\lesssim x_{\mathrm {F}} \lesssim 0.6$ and $0.2\le p_{\mathrm {t}} \le 1.2$ GeV/c. The obtained results are compared with other measurements in the pp and pA interactions.