Digamma diagnostics for the mixed-phase generation at NICAстатья
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Дата последнего поиска статьи во внешних источниках: 14 августа 2017 г.
Аннотация: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.