About
By elementary hadron we mean a compact state made of quarks as opposite to a composite hadron, which is made up by other elementary hadrons. To investigate the structure of the exotic unstable hadrons one may either look for patterns in spectroscopy, as the quark model suggests, or resort to the physics of shallow bound states. In recent times, following an experimental study by the LHCb collaboration, a discussion has been raised on the role of the scattering effective range r_0 as a discriminating parameter between the elementary and composite hypotheses for the 𝑋 (3872). I will present a short introduction to the main aspects of this discussion. .
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The talk
Credits and licence
- Institution
- CERN
- Department
- Theory Colloquia
- Speaker
- Antonio Polosa
- Year
- 2023
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed