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Tamponi, U.*; 谷田 聖; Belle Collaboration*; 他174名*
European Physical Journal C, 78(8), p.633_1 - 633_10, 2018/08
被引用回数:14 パーセンタイル:58.08(Physics, Particles & Fields)We study bottomonium production in association with an meson in
annihilations near the
, at a center of mass energy of
GeV. The results are based on the
fb
data sample collected by the Belle experiment at the asymmetric energy KEKB collider. Only the
meson is reconstructed and the missing-mass spectrum of
candidates is investigated. We observe the
process and find evidence for the
process, while no significant signals of
,
, nor
are found. Cross sections for the studied processes are reported.
Choi, S.-K.*; 谷田 聖; Belle Collaboration*; 他174名*
Physical Review D, 91(9), p.092011_1 - 092011_12, 2015/05
被引用回数:15 パーセンタイル:53.87(Astronomy & Astrophysics)We report improved measurements of the product branching fractions and
, where the first errors are statistical, the second are systematic and the third are from
and
branching fractions. In addition, we report negative results from a search for hypothesized neutral (
) and doubly charged (
) isospin partners of the
and provide upper limits on the product branching fractions
and
that are more than an order of magnitude smaller than theoretical expectations for the hypotheses that the
is a member of an isospin triplet. The analysis uses a 711
data sample containing 772 million
-meson pairs collected at the
resonance in the Belle detector at the KEKB collider.
Bala, A.*; 谷田 聖; Belle Collaboration*; 他174名*
Physical Review D, 91(5), p.051101_1 - 051101_7, 2015/03
被引用回数:21 パーセンタイル:65.00(Astronomy & Astrophysics)We report the first observation of and evidence for
. We measure the product of branching fractions for the former to be
and find that
does not dominate the
decay mode. We also measure
. This study is based on the full data sample of 711
(
pairs) collected at the
resonance with the Belle detector at the KEKB collider.