Probing an axial-vector tetraquark Zs via its semileptonic decay Zs → → X(4274) l l ¯ ν_l ν l

2018/04/30 by H. Sundu, B. Barsbay, S. S. Agaev +1 · 10 citations
Physics and Astronomy · #Particle physics theoretical and experimental studies #QCD sum rules #Quantum Chromodynamics and Particle Interactions #Quantum and Classical Electrodynamics #Quantum chromodynamics #Semileptonic decay #Sum rule in quantum mechanics #Tetraquark #hep-ex #hep-lat #hep-ph

paper · pdf · doi:10.1140/epja/i2018-12552-0

published in The European Physical Journal A 54(7) (Springer Science+Business Media) · 8 Pages, 3 Figures and 1 Table

openalex created_date 2018/04/24 · openalex publication_date 2018/07/01 · arxiv created 2018/07/12 · arxiv updated 2018/08/15 · openalex updated_date 2026/08/05

Abstract

The semileptonic decays of the open charm-bottom axial-vector tetraquark Z_s=[cs][bs] to X(4274)l ν_l, l=e, μ, τ are explored by means of the QCD three-point sum rule method. Both Z_s and X(4274)=[cs][cs] are treated as color sextet diquark-antidiquark states. The full width of the decays Z_s → X(4274)l ν_l is found. Obtained predictions for Γ(Z_s → X(4274)l ν_l) demonstrate that, as in the case of the conventional hadrons, the semileptonic transitions form a very small part of its full width.

Citations

• Observation and Properties of theX(3872)Decaying toJ/ψπ+π−inpp¯Collisions ats=1.96 TeV
• The new heavy mesons: A status report
• Four-quark hadrons: An updated review
• The Exotic XYZ Charmonium-Like Mesons
• Study of theB−→J/ψK−π+π−decay and measurement of theB−→X(3872)K−branching fraction
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• The hidden-charm pentaquark and tetraquark states
• A review of the open charm and open bottom systems