We consider the nuclear modification ratios in heavy ion collisions, R-CP and R-AA, in the region of intermediate transverse momentum, and study the dependency upon the constituent quark composition of the observed hadron. Adopting a two component recombination/fragmentation model, validated by experimental information from STAR and PHENIX, we show that a clear distinction is predicted for the f(0)(980) between the assumptions of s (s) over bar or diquark-antidiquark content. (c) 2006 Published by Elsevier B.V.
Counting valence quarks at RHIC and LHC / Maiani, Luciano; Polosa, ANTONIO DAVIDE; V., Riquer; C. A., Salgado. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 645:2-3(2007), pp. 138-145. [10.1016/j.physletb.2006.11.072]
Counting valence quarks at RHIC and LHC
MAIANI, Luciano;POLOSA, ANTONIO DAVIDE;
2007
Abstract
We consider the nuclear modification ratios in heavy ion collisions, R-CP and R-AA, in the region of intermediate transverse momentum, and study the dependency upon the constituent quark composition of the observed hadron. Adopting a two component recombination/fragmentation model, validated by experimental information from STAR and PHENIX, we show that a clear distinction is predicted for the f(0)(980) between the assumptions of s (s) over bar or diquark-antidiquark content. (c) 2006 Published by Elsevier B.V.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
