The Ω(2012) as a Hadronic Molecule  

作　　者：Ju-Jun Xie Li-Sheng Geng 谢聚军;耿立升(Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Nuclear Sciences and Technology,University of Chinese Academy of Sciences,Beijing 101408,China;Southern Center for Nuclear-Science Theory(SCNT),Institute of Modern Physics,Chinese Academy of Sciences,Huizhou 516000,China;School of Physics,Beihang University,Beijing 102206,China;Beijing Key Laboratory of Advanced Nuclear Materials and Physics,Beihang University,Beijing 102206,China;Peng Huanwu Collaborative Center for Research and Education,Beihang University,Beijing 100191,China)

机构地区：[1]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China [2]School of Nuclear Sciences and Technology,University of Chinese Academy of Sciences,Beijing 101408,China [3]Southern Center for Nuclear-Science Theory(SCNT),Institute of Modern Physics,Chinese Academy of Sciences,Huizhou 516000,China [4]School of Physics,Beihang University,Beijing 102206,China [5]Beijing Key Laboratory of Advanced Nuclear Materials and Physics,Beihang University,Beijing 102206,China [6]Peng Huanwu Collaborative Center for Research and Education,Beihang University,Beijing 100191,China

出　　处：《Chinese Physics Letters》2024年第8期13-16,共4页中国物理快报（英文版）

基　　金：supported by the National Key R&D Program of China(Grant No.2023YFA1606703);the National Natural Science Foundation of China(Grant Nos.12075288 and 12361141819);the Youth Innovation Promotion Association of CAS.

摘　　要：Recently,a new excited baryon state,Ω(2012),was observed in the invariant mass spectra of𝐾K^(-)■^(0) and K_(S)^(0)■^(-)by the Belle collaboration.This state has a narrow width(∼6 MeV)compared to other baryon states with a similar mass.Here,we provide a mini-review on the Ω(2012)state from the molecular perspective,where it appears to be a dynamically generated state with spin-parity 3/2^(−)from the coupled-channels interactions of the K■(1530)and ηΩ in s-wave and K■ in𝑑d-wave.Additionally,alternative explanations for the Ω(2012)resonance are also discussed.

关 键 词：wave. INVARIANT STATE 

分 类 号：O572.33[理学—粒子物理与原子核物理]