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 GeV<p t<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. © Springer-Verlag Berlin Heidelberg 2007.

Study of inclusive strange-baryon production and search for pentaquarks in two-photon collisions at LEP / P., A., O., A., M., A.B., J., A., G., A., J., A., A., A., M. G., A., H., A., V. P., A., F., A., A., A., T., A., T., A., Bagnaia, P., A., B., G., B., L., B., S. V., B., S., B., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 49:2(2007), pp. 395-410. [10.1140/epjc/s10052-006-0140-3]

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

BAGNAIA, Paolo;BORGIA, BRUNO;DIONISI, Carlo;GENTILE, Simonetta;GIAGU, Stefano;LONGO, Egidio;LUCI, Claudio;ORGANTINI, Giovanni;PARAMATTI, Riccardo;
2007

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 GeV<p t<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. © Springer-Verlag Berlin Heidelberg 2007.
2007
01 Pubblicazione su rivista::01a Articolo in rivista
Study of inclusive strange-baryon production and search for pentaquarks in two-photon collisions at LEP / P., A., O., A., M., A.B., J., A., G., A., J., A., A., A., M. G., A., H., A., V. P., A., F., A., A., A., T., A., T., A., Bagnaia, P., A., B., G., B., L., B., S. V., B., S., B., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 49:2(2007), pp. 395-410. [10.1140/epjc/s10052-006-0140-3]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/357493
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