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

• Main Authors: Bauer, Gerry P. (Contributor), Gomez-Ceballos, Guillelmo (Contributor), Goncharov, Maxim (Contributor), Makhoul, Khaldoun (Contributor), Paus, Christoph M. E. (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
• Format: Article
• Language: English
• Published: American Physical Society, 2012-08-15T19:27:33Z.
• Subjects: Article
• Online Access: Get fulltext

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.