Indications of a Four-Quark Structure for theX(3872)andX(3876)Particles from Recent Belle andBABARData

2007/07/31 by Luciano Maiani, L. Maiani, A. D. Polosa +1 · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #hep-ph

paper · pdf · doi:10.1103/physrevlett.99.182003

published as Phys.Rev.Lett.99:182003,2007 · 5 pages, some revision of the text, results unchanged. To appear in Phys. Rev. Lett

arxiv created 2007/09/19 · openalex publication_date 2007/11/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Recent results by Belle and BABAR point to the existence of a second X particle decaying in D(0)D(0)pi(0), a few MeV above the X(3872). We identify the two X states with the neutral particles predicted by the four-quark model and show that production and decays are consistent with this assignment. We consider the yet-to-be-observed charged partners and give new hints on how to look for them.

Citations

• Diquark-antidiquark states with hidden or open charm and the nature ofX(3872)
• Search for a charged partner of theX(3872)in theBmeson decayB→X−K,X−→J/ψπ−π0
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• THE X(3872) MESON AND "EXOTIC" SPECTROSCOPY AT CDF II — OR NOT? —
• Review of Particle Physics

Cited by

• A theory of X and Z multiquark resonances
• Possible Bound States in the D^∗ D^∗/B^∗ B^∗ and D^∗ D^∗/ B^∗ B^∗ Systems within the Bethe-Salpeter Formalism
• Quark model description of the tetraquark stateX(3872)in a relativistic constituent quark model with infrared confinement

Related

• Properties of the X(3872) at Belle
• Update on Z(4430) and X(3872) at Belle
• Do c c n n bound states exist?
• Observation of candidate exotic mesons containing heavy quarks with Belle
• Tetra-Quark Interpretation of X(3872) and Z_c(3900) Revisited