Measurement of χF3 and F2 structure functions in low Q2 region with the IHEP-JINR neutrino detector

A. V. Sidorova,Y. A. Batusov, S. A. Bunyatova,A. A. Borisov,S. K. Chernichenko,G. L. Chukin,O. Y. Denisov,R. M. Fachrutdinov,V. N. Goryachev, M. Y. Kazarinova,M. M. Kirsanov, O. L. Klimova,A. I. Kononov, A. V. Krasnoperova,V. E. Kuznetsova,A. I. Mukhin, Y. A. Nefedova, B. A. Popova, S. N. Prakhova,Y. I. Salomatin,V. I. Snyatkova,Y. M. Sviridov,V. V. Tereshchenko, V. Y. Valueva,A. S. Vovenko

Nuclear Physics B - Proceedings Supplements（1999）

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摘要

The isoscalar structure functions χF3 and F2 are measured as functions of χ averaged over all Q2 permissible for the range of 6 to 28 GeV of incident neutrino (anti-neutrino) energy at the IHEP-JINR Neutrino Detector. The QCD analysis of χF3 structure function provides Λ(4)M S = (411 ± 200) MeV under the assumption of QCD validity in the region of low Q2. The corresponding value of the strong interaction constant αS (MZ = 0.123−0.013+0.010 agrees with the recent result of the CCFR collaboration and with the combined LEP/SLC result.

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f2 structure functions,χf3,neutrino,low q2 region,ihep-jinr

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