Back to Search Start Over

Inclusive study of bottomonium production in association with an η meson in e+e- annihilations near Υ(5S).

Authors :
Tamponi, U.
Guido, E.
Mussa, R.
Adachi, I.
Aihara, H.
Al Said, S.
Asner, D. M.
Atmacan, H.
Aulchenko, V.
Aushev, T.
Ayad, R.
Babu, V.
Badhrees, I.
Bakich, A. M.
Bansal, V.
Barberio, E.
Behera, P.
Berger, M.
Bhardwaj, V.
Bhuyan, B.
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