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Production of Λ[superscript 0], Λ̅ [superscript 0], Ξ[superscript ±], and Ω[superscript ±] hyperons in pp̅ collisions at √s=1.96  TeV

Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Makhoul, Khaldoun; Paus, Christoph M. E.; Bauer, Gerry P
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Abstract
We report a set of measurements of inclusive invariant pT differential cross sections of Λ[superscript 0], Λ̅ [superscript 0], Ξ[superscript ±], and Ω[superscript ±] hyperons reconstructed in the central region with pseudorapidity |η|<1 and p[subscript T] up to 10  GeV/c. Events are collected with a minimum-bias trigger in pp̅ collisions at a center-of-mass energy of 1.96 TeV using the CDF II detector at the Tevatron Collider. As p[subscript T] increases, the slopes of the differential cross sections of the three particles are similar, which could indicate a universality of the particle production in p[subscript T]. The invariant differential cross sections are also presented for different charged-particle multiplicity intervals.
Date issued
2012-07
URI
http://hdl.handle.net/1721.1/72162
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Production of Λ[superscript 0], Λ̅ [superscript 0], Ξ[superscript ±], and Ω[superscript ±] hyperons in pp̅ collisions at √s=1.96  TeV.” Physical Review D 86.1 (2012). © 2012 American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918

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