{psi}{prime} and J/{psi} suppression in high-energy nucleon-nucleus and nucleus-nucleus collisions
Conference
·
OSTI ID:192477
The observed features of {psi}` to J/{psi} suppression in pA and nucleus-nucleus collisions can be explained in terms of a two-component absorption model. For the hard component of the absorption due to the interaction of the produced c{bar c} systems with baryons at high relative energies, the absorption cross sections are insensitive to the radii of the c{bar c} systems, as described by the Additive Quark Model. For the soft component due to the low energy c{bar c} interactions with soft particles produced by other baryon-baryon collisions, the absorption cross sections are greater for {psi}` than for J/{psi}, because the breakup threshold for {psi}` is much smaller than for {psi}.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 192477
- Report Number(s):
- CONF-950802-5; ON: DE96005982; TRN: 96:008352
- Resource Relation:
- Conference: 8. international nuclear physics conference, Beijing (China), 21-26 Aug 1995; Other Information: PBD: 1995
- Country of Publication:
- United States
- Language:
- English
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