Friday, March 23, 2012

1203.4893 (A. K. Likhoded et al.)

Production of $χ_{b}$-mesons at ATLAS    [PDF]

A. K. Likhoded, A. V. Luchinsky, S. V. Poslavsky
Recent data on $\chi_{b}(nP)$-meson production at ATLAS are discussed. Our predictions for the ratio of $\chi_{b}(2P)$- and $\chi_{b}(1P)$-mesons yields are about two times larger, than the experimental results. The branching fractions of $\chi_{b1}(3P) -> \Upsilon(1S)\gamma$ decay is estimated. The experimental results for $\chi_b(2P)$ in $\Upsilon(2S)\gamma$, on the contrary, are in our opinion, significantly underestimated.
View original: http://arxiv.org/abs/1203.4893

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