Testing the molecular nature of the Ω (2012) with the ψ (3770) → (Ω)over-bar(K)over-barΞ and ψ (3770) → (Ω)over-bar(K)over-barΞ* (1530) ((Ω)over-bar(K)over-barπΞ) reactions

被引：0
|
作者：
Song, Jing [1 ,2 ,3 ]
Liang, Wei-Hong [4 ,5 ]
Xiao, Chu-Wen [4 ,5 ,6 ]
Dias, Jorgivan Morais [7 ,8 ]
Oset, Eulogio [2 ,3 ,4 ]
机构：
[1] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China
[2] CSIC Inst Invest Paterna, Ctr Mixto Univ Valencia, Dept Fis Teor, Apartado 22085, Valencia 46071, Spain
[3] CSIC Inst Invest Paterna, Ctr Mixto Univ Valencia, IFIC, Apartado 22085, Valencia 46071, Spain
[4] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China
[5] Guangxi Normal Univ, Guangxi Key Lab Nucl Phys & Technol, Guilin 541004, Peoples R China
[6] Cent South Univ, Sch Phys, Changsha 410083, Peoples R China
[7] Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
[8] Univ Fed Piaui, Dept Fis, BR-64049550 Teresina, Piaui, Brazil
来源：
EUROPEAN PHYSICAL JOURNAL C | 2024年 / 84卷 / 12期
基金：
欧盟地平线“2020”; 中国国家自然科学基金; 中国博士后科学基金;
关键词：
RESONANCES;
D O I：
10.1140/epjc/s10052-024-13710-9
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We report on the reactions psi(3770) -> (Omega) over bar+(K) over bar Xi and psi(3770) -> (Omega) over bar (+)(K) over bar Xi*(1530) (Xi* (1530) -> pi Xi), and calculate the mass distributions d Gamma/dM(inv)((K) over bar Xi) and d Gamma/dM(inv)(K Xi*), respectively. We obtain clear peaks corresponding to the Omega(2012). From the decay of psi(3770) -> (Omega) over bar (+)(K) over bar Xi*, we also get a second, broader, peak around 2035MeV, which comes from the Omega(2012) decay to (K) over bar Xi*. This second peak is closely tied to the molecular picture of the Omega(2012) with the (K) over bar Xi* (1530) and eta Omega components. Its observation would provide a boost to the molecular picture of the Omega (2012).
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页数：7
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