Measurement of the weak neutral current excitation at Eνμ=29.8 MeV

Autor:	T. Jannakos, C. Ruf, B. A. Bodmann, M. Steidl, W. Kretschmer, C. Oehler, I. Blair, R. Maschuw, M. Kleifges, B. Zeitnitz, B. Armbruster, P. Jünger, C. Eichner, O. Stumm, J. Kleinfeller, E. Finckh, J. Rapp, K. Eitel, Guido Drexlin, J. Hößl, N.E. Booth, J.A. Edgington, B. Seligmann, Joachim Wolf, H. Gemmeke, P. Plischke, V. Eberhard
Rok vydání:	1998
Předmět:	Physics Coupling constant Nuclear physics Nuclear and High Energy Physics Cross section (physics) Neutral current Hadron Neutrino Atomic physics Excitation KARMEN Standard Model
Zdroj:	Physics Letters B. 423:15-20
ISSN:	0370-2693
Popis:	The weak neutral current reaction 12 C( ν μ , ν μ ′ ) 12 C ∗ (1 + ,1; 15.1MeV) has been observed for the first time in the KARMEN experiment. Neutrino events were separated from background using two different analysis methods. The measured cross section σ NC =(3.2 ± 0.5 stat. ± 0.4 syst. ) × 10 −42 cm 2 for monoenergetic ν μ from π + -decay at rest is in good agreement with the standard model, the isovector-axialvector coupling constant of weak hadronic current deduced from this experiment is | β |=1.11±0.13.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8083eca13afc3b20b9b56917fe5326bf https://doi.org/10.1016/s0370-2693(98)00087-2 Zobrazit plný text záznamu Full Text from ScienceDirect