ISSN:
1434-6052
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The cross section of the quasi-elastic reactions $$\bar v_\mu p \to \mu ^ + \Lambda (\Sigma ^0 )$$ in the energy range 5–100 GeV is determined from Fermilab 15′ bubble chamber antineutrino data. TheQ 2 analysis of quasi-elastic Λ events yieldsM A=1.0±0.3 GeV/c2 for the axial mass value. With zero µΛ K 0 events observed, the 90% confidence level upper limit $$\sigma (\bar v_\mu p \to \mu ^ + \Lambda {\rm K}^0 )〈 2.0 \cdot 10^{ - 40} cm^2 $$ is obtained. At the same time, we found that the cross section of reaction $$\bar v_\mu p \to \mu ^ + \Lambda {\rm K}^0 + m\pi ^0 $$ is equal to $$\left( {3.9\begin{array}{*{20}c} { + 1.6} \\ { - 1.3} \\ \end{array} } \right) \cdot 10^{ - 40} cm^2 $$ .
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01573931
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