@Article{Bruschini+Gonzalez2021,
author="Bruschini, R.
and Gonzalez, P.",
title="Strong decays of the lowest bottomonium hybrid within an extended Born-Oppenheimer framework",
journal="European Physical Journal C",
year="2021",
publisher="Springer",
volume="81",
number="1",
pages="74--9pp",
abstract="We analyze the decays of the theoretically predicted lowest bottomonium hybrid H(1P) to open bottom two-meson states. We do it by embedding a quark pair creation model into the Born-Oppenheimer framework which allows for a unified, QCD-motivated description of bottomonium hybrids as well as bottomonium. A new 1P1 decay model for H(1P) comes out. The same analysis applied to bottomonium leads naturally to the well-known 3 P0 decay model. We show that H(1P) and the theoretically predicted bottomonium state Upsilon (5S), whose calculated masses are close to each other, have very different widths for such decays. A comparison with data from Upsilon (10860), an experimental resonance whose mass is similar to that of Upsilon (5S) and H(1P), is carried out. Neither a Upsilon (5S) nor a H(1P) assignment can explain the measured decay widths. However, a Upsilon (5S)-H(1P) mixing may give account of them supporting previous analyses of dipion decays of Upsilon (10860) and suggesting a possible experimental evidence of H(1P).",
optnote="WOS:000612840500001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4695), last updated on Tue, 16 Feb 2021 09:51:47 +0000",
issn="1434-6044",
doi="10.1140/epjc/s10052-021-08872-9",
opturl="https://arxiv.org/abs/1912.07337",
opturl="https://doi.org/10.1140/epjc/s10052-021-08872-9",
language="English"
}