Scientific article
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English

Study of inclusive strange-baryon production and search for pentaquarks in two-photon collisions at LEP

ContributorsField, John; L3 Collaboration
Published inEuropean physical journal. C, Particles and fields, vol. 49, no. 2, p. 395-410
Publication date2007
Abstract

Measurements of inclusive production of the Λ, Ξ- and Ξ*(1530) baryons in two-photon collisions with the L3 detector at LEP are presented. The inclusive differential cross sections for Λ and Ξ- are measured as a function of the baryon transverse momentum, pt, and pseudo-rapidity, η. The mean number of Λ, Ξ- and Ξ*(1530) baryons per hadronic two-photon event is determined in the kinematic range 0.4 GeVt<2.5 GeV, |η|<1.2. Overall agreement with the theoretical models and Monte Carlo predictions is observed. A search for inclusive production of the pentaquark θ+(1540) in two-photon collisions through the decay θ+→pK0 S is also presented. No evidence for production of this state is found.

Citation (ISO format)
FIELD, John. Study of inclusive strange-baryon production and search for pentaquarks in two-photon collisions at LEP. In: European physical journal. C, Particles and fields, 2007, vol. 49, n° 2, p. 395–410. doi: 10.1140/epjc/s10052-006-0140-3
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accessLevelPublic
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Journal ISSN1434-6044
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