Digamma diagnostics for the mixed-phase generation at NICA

A novel type of diagnostics for dense and/or hot nuclear matter produced in heavy-ion collisions at NICA and similar future colliders (FAIR, etc.) is suggested. The diagnostics is based on an assumption (confirmed in many experiments worldwide) about intensive generation of light scalar mesons (σ) t...

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Bibliographic Details
Main Authors: Kukulin, V.I., Platonova, M.N.
Format: Conference Proceeding
Language:English
Subjects:
Atomic collisions
Mesons
Nuclear matter
Temperature dependence
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Summary:A novel type of diagnostics for dense and/or hot nuclear matter produced in heavy-ion collisions at NICA and similar future colliders (FAIR, etc.) is suggested. The diagnostics is based on an assumption (confirmed in many experiments worldwide) about intensive generation of light scalar mesons (σ) the consequent decay of which produces γγ pairs with the mass and width dependent upon density and temperature of the fireball produced in the collision process. Thus, measurements of the absolute yield, mass and width of the γγ signal carry valuable information about the state of fireball generated during the high-energy nuclear collision.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201713803006