Coherent Λπ− production on Pb of 600GeV Σ− hyperons has been studied with the SELEX facility at Fermilab. Using the Primakoff formalism, we set a 90% CL upper limit on the radiative decay width Γ[Σ(1385)− → Σ−γ] < 9.5 keV, and estimate the cross section for γΣ− → Λπ− at √s ≈ 1.385GeV to be 56± 16μb.

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The reaction mechanisms for K (1385) photoproduction from the reaction γp → K+ 0(1385) in the resonance energy region are investigated in a hadronic model. Both contributions from N and resonances of masses around 2 GeV as given in the Review of Particle Data Group and by the quark model predictions are included. The Lagrangians for describing the decays of these resonances into K (1385) are co...

Background: Loss of hearing is a non-visible disability (NVD) and the second most common congenital pathology. Apart from hearing loss, further disability in these domains has been reported like development of language, speech, cognition, and other evolving domains. These can be prevented by early identification and intervention. The aim of this study was to assess the outcomes of neonatal hear...

Purpose: to reveal the influence of functional asymmetry on performance technical actions in freestyle wrestlers. Material and methods. Analysis scientific methodical literature Internet sources; pedagogical testing; experiment; methods mathematical statistics. The profile brain wrestlers was determined. We used tapping test by E. Ilyin, tests determine motor visual dynamometry. According resul...

The main aim of this paper is manifested in the hypothesis that there a statistically significant correlation between length an active wrestling career and selected attitudes behaviours caused by COVID-19 virus pandemic. sample respondents (N=131) consists international wrestlers (average age 22.32±5.08 years) from all competition categories (seniors, senior juniors U23, cadets). collected surv...

Coherent Λπ− production on Pb of 600GeV Σ− hyperons has been studied with the SELEX facility at Fermilab. Using the Primakoff formalism, we set a 90% CL upper limit on the radiative decay width Γ[Σ(1385)− → Σ−γ] < 9.5 keV, and estimate the cross section for γΣ− → Λπ− at √s ≈ 1.385GeV to be 56± 16μb.