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Inclusive study of bottomonium production in association with an η meson in e+e- annihilations near Υ(5S).
- Source :
- European Physical Journal C -- Particles & Fields; Aug2018, Vol. 78 Issue 8, p1-1, 1p
- Publication Year :
- 2018
-
Abstract
- We study bottomonium production in association with an η<inline-graphic></inline-graphic> meson in e+e-<inline-graphic></inline-graphic> annihilations near the Υ(5S)<inline-graphic></inline-graphic>, at a centre-of-mass energy of s=10.866<inline-graphic></inline-graphic> GeV. The results are based on the 121.4 fb-1<inline-graphic></inline-graphic> data sample collected by the Belle experiment at the asymmetric-energy KEKB collider. Only the η<inline-graphic></inline-graphic> meson is reconstructed and the missing-mass spectrum of η<inline-graphic></inline-graphic> candidates is investigated. We observe the e+e-→ηΥJ(1D)<inline-graphic></inline-graphic> process and find evidence for the e+e-→ηΥ(2S)<inline-graphic></inline-graphic> process, while no significant signals of Υ(1S)<inline-graphic></inline-graphic>, hb(1P)<inline-graphic></inline-graphic>, nor hb(2P)<inline-graphic></inline-graphic> are found. Cross sections for the studied processes are reported. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14346044
- Volume :
- 78
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- European Physical Journal C -- Particles & Fields
- Publication Type :
- Academic Journal
- Accession number :
- 131798426
- Full Text :
- https://doi.org/10.1140/epjc/s10052-018-6086-4