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Identifying multiquark hadrons from heavy ion collisions
Sungtae Cho1, Takenori Furumoto, Tetsuo Hyodo
1Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Korea.
Physical Review Letters
|June 25, 2011
Summary
Identifying exotic hadrons is challenging. Studying their production in heavy ion collisions reveals their structure, with yields differing significantly for multiquark states versus hadronic molecules.
Area of Science:
- Nuclear Physics
- Particle Physics
- Hadron Spectroscopy
Background:
- Identifying hadrons with multiquark components or exotic quantum numbers is a significant challenge in hadronic physics.
- Understanding hadron structure is crucial for advancing fundamental physics theories.
Purpose of the Study:
- To investigate the production of exotic hadrons in relativistic heavy ion collisions.
- To determine if hadron production yields can elucidate the structure of exotic hadrons.
Main Methods:
- Utilizing the coalescence model for hadron production.
- Analyzing the expected yields of exotic hadrons based on their structural properties (compact multiquark states vs. loosely bound hadronic molecules).
Main Results:
- Exotic hadron yields are sensitive to their internal structure.
- Compact multiquark states are predicted to have yields an order of magnitude smaller than nonexotic hadrons.
- Loosely bound hadronic molecules are predicted to have yields 2 times larger than nonexotic hadrons.
Conclusions:
- Relativistic heavy ion collisions offer a viable method for identifying exotic hadrons.
- Experimental measurements of exotic hadron production can distinguish between different structural models.
- Newly proposed heavy exotic states may be detectable in current or near-future experiments.
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