Newly observed <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>a</mml:mi><mml:mn>0</mml:mn></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mn>1817</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math> as the scaling point of constructing the scalar meson spectroscopy
نویسندگان
چکیده
Stimulated by the newly observed $a_0(1817)$ BESIII Collaboration, we find a perfect Regge trajectory composed of $a_0(980)$, $a_0(1450)$, and $a_0(1817)$, which leads us to categorize into isovector scalar meson family. This scenario is supported their two-body Okubo-Zweig-Iizuka allowed strong decay behaviors. In this scheme, also predict third radial excitation denoted as $a_0(2115)$, accessible at future experiment direct test assignment. We another contains three isoscalar states $f_0(980)$, $X(1812)$, $f_0(2100)$. investigate patterns, are roughly consistent with experimental data. The $f_0(2100)$ can be well grouped want emphasize that these two trajectories have similar slope. summary, present work provides scheme constructing family based on reported states. possibility $f_0(1710)$ candidate glueball cannot excluded observation since more suitable partner $X(1812)$.
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ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.105.114014