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).
引用
收藏
页数：7
相关论文
共 50 条
  • [41] Waiting for precise measurements of K+→π+ν(ν)over-bar and KL→π0ν(ν)over-bar
    Buras, Andrzej J.
    Uhlig, Selma
    Schwab, Felix
    REVIEWS OF MODERN PHYSICS, 2008, 80 (03) : 965 - 1007
  • [42] Doubly-heavy tetraquark states cc(u)over-bar(d)over-bar and bb(u)over-bar(d)over-bar
    Chen, Xiaoyun
    Yang, Youchang
    CHINESE PHYSICS C, 2022, 46 (05)
  • [43] 'What tH(e)over-bar #$*!(D)over-barθ wΣ (k)πow!?'
    Kemp, P
    SIGHT AND SOUND, 2005, 15 (06): : 79 - 80
  • [44] Measurement of the cross section for e+e- → Λ(Λ)over-bar and evidence of the decay ψ(3770) → Λ(Λ)over-bar
    Ablikim, M.
    Achasov, M. N.
    Adlarson, P.
    Ahmed, S.
    Albrecht, M.
    Aliberti, R.
    Amoroso, A.
    An, M. R.
    An, Q.
    Bai, X. H.
    Bai, Y.
    Bakina, O.
    Ferroli, R. Baldini
    Balossino, I
    Ban, Y.
    Begzsuren, K.
    Berger, N.
    Bertani, M.
    Bettoni, D.
    Bianchi, F.
    Bloms, J.
    Bortone, A.
    Boyko, I
    Briere, R. A.
    Cai, H.
    Cai, X.
    Calcaterra, A.
    Cao, G. F.
    Cao, N.
    Cetin, S. A.
    Chang, J. F.
    Chang, W. L.
    Chelkov, G.
    Chen, D. Y.
    Chen, G.
    Chen, H. S.
    Chen, M. L.
    Chen, S. J.
    Chen, X. R.
    Chen, Y. B.
    Chen, Z. J.
    Cheng, W. S.
    Cibinetto, G.
    Cossio, F.
    Cui, X. F.
    Dai, H. L.
    Dai, J. P.
    Dai, X. C.
    Dbeyssi, A.
    de Boer, R. E.
    PHYSICAL REVIEW D, 2021, 104 (09)
  • [45] On the shape of the (d)over-bar - (u)over-bar asymmetry
    Accardi, A.
    Keppel, C. E.
    Li, S.
    Melnitchouk, W.
    Niculescu, G.
    Niculescu, I.
    Owens, J. F.
    PHYSICS LETTERS B, 2020, 801
  • [46] Flavor models for (B)over-bar → D(*)τ(ν)over-bar
    Freytsis, Marat
    Ligeti, Zoltan
    Ruderman, Joshua T.
    PHYSICAL REVIEW D, 2015, 92 (05)
  • [47] Λ(Λ)over-bar production in p(p)over-bar collisions
    Ortega, P. G.
    Entem, D. R.
    Fernandez, F.
    CHINESE PHYSICS C, 2010, 34 (09) : 1462 - 1464
  • [48] A search for a promising tetraquark candidate X(ud($)over-bar($)over-bar($)over-bar) in pn → ΛΛX
    Liu, Xiao-Hai
    Zhao, Qiang
    JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2009, 36 (01)
  • [49] Bell's inequality in charmonium decays ηc → Λ(Λ)over-bar, χc → Λ(Λ)over-bar and J/ψ → Λ(Λ)over-bar
    Baranov, S. P.
    JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2008, 35 (07)
  • [50] Measurement of (B)over-bar → D(*)τ-(ν)over-barτ at Belle
    Hirose, Shigeki
    NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS, 2017, 287 : 185 - 188
12345