Universal scaling behaviour of the transverse polarization for inclusively produced hyperons in hadron-hadron collisions

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dc.creatorAbramov, Victor V.
dc.date2001-11-11
dc.date.accessioned2026-07-07T03:45:47Z
dc.date.available2026-07-07T03:45:47Z
dc.descriptionExperimental data on the polarization of hyperons, inclusively produced in hadron-hadron collisions, have been analyzed. It is shown that the existing data can be described by a function of transverse momentum (Pt) and two scaling variables Xa+-=(Xr +- Xf)/2: P_H=A^alpha*F(Pt)[G(Xa+ -x2) -sigma*G(Xa- +x2)]. The function G(x) is proportional to sin[omega*(x -x1)]/omega, which results for some reactions in an oscillation of P_H as a function of Xf. The "omega", as well as the magnitude and the sign of the hyperon polarization depend on quark composition of hadrons participating in a reaction. The atomic weight dependence of the Lambda hyperon polarization is characterized by the parameter alpha = -0.16|Xf|. There is an analogy between the scaling properties of the hyperon polarization and the analyzing power (An) in hadron production reactions. This new scaling law allows one to predict hyperon polarization for reactions and kinematic regions, yet unexplored in experiments and to confront these predictions with future experiments and various models.
dc.description58 pages (Latex), 12 Postscript figures, 11 Tables
dc.identifierhttps://arxiv.org/abs/hep-ph/0111128
dc.identifierhttp://arxiv.org/abs/hep-ph/0111128
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/41052
dc.subjectHigh Energy Physics - Phenomenology
dc.titleUniversal scaling behaviour of the transverse polarization for inclusively produced hyperons in hadron-hadron collisions
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