Internet Archive Scholar

Measurement of the η–η′ mixing angle in π − and K − beams with the GAMS-4π Spectrometer

S. V. Donskov, V. N. Kolosov, A. A. Lednev, Yu. V. Mikhailov, V. A. Polyakov, V. D. Samoylenko, G. V. Khaustov
2013 European Physical Journal C: Particles and Fields  

Preserved Fulltext

fulltext thumbnail
Web Archive Capture PDF (130.3 kB)
https://web.archive.org/web/20200826235340/https://arxiv.org/pdf/1301.6987v1.pdf

A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL. The file type is application/pdf.

Note that this fulltext copy is not of the "primary" version of this work. The version it corresponds to is:

2013 pre-print arXiv:1301.6987v1 fatcat:5qpvu4gbgnfmjdwglteazeudca

Other Versions

2013 accepted
arXiv:1301.6987v2 fatcat:y3nljbrrnffvvpn3y7qwe6zl7e
The results of mixing angle measurement for η', η mesons generated in charge exchange reactions with π^- and K^- beams are preseneted. When the η', η mesons are described in nonstrange(NS)--strange(S) quark basis the π^- and K^- beams allow to study |η_q> and |η_s> parts of the meson wave function. The cross section ratio at t'=0 (GeV/c)^2 in the π^- beam is R_π(η'/η)= 0.56 ± 0.04, results in mixing angle ϕ_P = (36.8 ± 1.)^o . For K^- beam the ratio is R_K(η'/η)= 1.30 ± 0.16. It was found that
more » ... luonium content in η' is sin^2ψ_G= 0.15 ± 0.06. The experiment was carried out with GAMS-4π Setup.
doi:10.1140/epjc/s10052-013-2614-4 fatcat:42p5je3w4zaebdm6zydgznbccq
DOAJ Multiple Versions
Citation

S. V. Donskov, V. N. Kolosov, A. A. Lednev, Yu. V. Mikhailov, V. A. Polyakov, V. D. Samoylenko, G. V. Khaustov. "Measurement of the η–η′ mixing angle in π − and K − beams with the GAMS-4π Spectrometer." European Physical Journal C: Particles and Fields 73.10 (2013)