2006/09/28 by P. Achard, L3 Collaboration, O. Adriani +97 · 7 citations
Physics and Astronomy · #Baryon #Exotic hadron #Hadron #High-Energy Particle Collisions Research #Lambda #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Pentaquark #Photon #Physics #Production (economics) #Proton #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Rapidity #hep-ex
paper · pdf · open access · doi:10.1140/epjc/s10052-006-0140-3
published in The European Physical Journal C 49(2), 395-410 (Springer Science+Business Media)
arxiv created 2006/09/28 · openalex publication_date 2006/12/01 · arxiv updated 2012/08/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
Measurements of inclusive production of the Lambda, Xi- and Xi*(1530) baryons in two-photon collisions with the L3 detector at LEP are presented. The inclusive differential cross sections for Lambda and Xi- are measured as a function of the baryon transverse momentum, pt, and pseudo-rapidity, eta. The mean number of Lambda, Xi- and Xi*(1530) baryons per hadronic two-photon event is determined in the kinematic range 0.4 GeV < pt< 2.5 GeV, |eta| < 1.2. Overall agreement with the theoretical models and Monte Carlo predictions is observed. A search for inclusive production of the pentaquark theta+(1540) in two-photon collisions through the decay theta+ -> proton K0s is also presented. No evidence for production of this state is found.