UAB Digital Repository of Documents 2 records found  Search took 0.01 seconds. 
1.
10 p, 735.6 KB The Zc structures in a coupled-channels model / Ortega, Pablo G. (Universidad de Salamanca. Grupo de Física Nuclear and Instituto Universitario de Física Fundamental y Matemáticas) ; Segovia, Jorge (Universitat Autònoma de Barcelona. Departament de Física) ; Entem, David R. (Universidad de Salamanca. Grupo de Física Nuclear and Instituto Universitario de Física Fundamental y Matemáticas) ; Fernández, Francisco (Universidad de Salamanca. Grupo de Física Nuclear and Instituto Universitario de Física Fundamental y Matemáticas)
The Z(3900) / Z(3885) and Z(4020) are two charmonium-like structures discovered in the πJ/ ψ and DD¯ + h. c. invariant mass spectra. Their nature is puzzling due to their charge, which forces its minimal quark content to be cc¯ ud¯ (cc¯ du¯). [...]
2019 - 10.1140/epjc/s10052-019-6552-7
The European Physical Journal. C, Particles and Fields, Vol. 79, Issue 1 (January 2019) , art. 78  
2.
11 p, 311.7 KB Spin structure of heavy-quark hybrids / Brambilla, Nora (Technische Universität München. Institute for Advanced Study) ; Lai, Wai Kin (Technische Universität München. Physik Department) ; Segovia, Jorge (Universitat Autònoma de Barcelona. Departament de Física) ; Tarrús Castellà, Jaume (Institut de Física d'Altes Energies) ; Vairo, Antonio (Technische Universität München. Physik Department)
A unique feature of quantum chromodynamics (QCD), the theory of strong interactions, is the possibility for gluonic degrees of freedom to participate in the construction of physical hadrons, which are color singlets, in an analogous manner to valence quarks. [...]
2019 - 10.1103/PhysRevD.99.014017
Physical Review D, Vol. 99, issue 1 (Jan. 2019) , art. 14017  

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