J/psi production in sqrt s_NN=200 GeV Cu+Cu collisions.
Phys Rev Lett
; 101(12): 122301, 2008 Sep 19.
Article
en En
| MEDLINE
| ID: mdl-18851363
ABSTRACT
Yields for J/psi production in Cu+Cu collisions at sqrt s_NN=200 GeV have been measured over the rapidity range |y|<2.2 and compared with results in p+p and Au+Au collisions at the same energy. The Cu+Cu data offer greatly improved precision over existing Au+Au data for J/psi production in collisions with small to intermediate numbers of participants, in the range where the quark-gluon plasma transition threshold is predicted to lie. Cold nuclear matter estimates based on ad hoc fits to d+Au data describe the Cu+Cu data up to N_part approximately 50, corresponding to a Bjorken energy density of at least 1.5 GeV/fm(3).
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Base de datos:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Año:
2008
Tipo del documento:
Article
País de afiliación:
Estados Unidos