Measurement of $xF_3$ and $F_2$ Structure Functions in Low $Q^2$ Region with the IHEP-JINR Neutrino Detector
| Autor: | Alexey Krasnoperov, O.L. Klimov, S.A. Bunyatov, A.I. Mukhin, A.S. Kozhin, Y. Nefedov, A.S. Vovenko, A. Borisov, V.B. Anykeyev, V.N. Goryachev, V. Valuev, S.K. Chernichenko, Yu.I. Salomatin, Aleksander V. Sidorov, B. A. Popov, V.I. Snyatkov, M. Y. Kazarinov, V.V. Lipajev, M.M. Kirsanov, V.L. Tumakov, Yu M. Sviridov, O.Y. Denisov, Yu.A. Batusov, S.N. Prakhov, N. I. Bozhko, V. Tereshchenko, R.M. Fachrutdinov, G.L. Chukin, V.E. Kuznetsov, V.I. Kravtsov, A.I. Kononov |
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| Jazyk: | angličtina |
| Rok vydání: | 1999 |
| Předmět: |
Physics
Quantum chromodynamics Particle physics Range (particle radiation) Physics and Astronomy (miscellaneous) Physics::Instrumentation and Detectors Isoscalar Strong interaction High Energy Physics::Phenomenology FOS: Physical sciences Lambda High Energy Physics - Experiment High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Neutrino detector High Energy Physics::Experiment Neutrino Engineering (miscellaneous) Energy (signal processing) |
| Popis: | The isoscalar structure functions $xF_3$ and $F_2$ are measured as functions of $x$ averaged over all $Q^2$ 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 $xF_3$ structure function provides $\Lambda_{\bar{MS}}^{(4)} = (411 \pm 200)$ MeV under the assumption of QCD validity in the region of low $Q^2$. The corresponding value of the strong interaction constant $\alpha_S (M_Z) = 0.123^{+0.010}_{-0.013}$ agrees with the recent result of the CCFR collaboration and with the combined LEP/SLC result. Comment: 11 pages, 1 Postscript figure, LaTeX. Talk given at the 7th International Workshop on Deep Inelastic Scattering and QCD (DIS 99), Zeuthen, Germany, 19-23 Apr 1999 |
| Databáze: | OpenAIRE |
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