Measurement of differences between J/ψ and ψ’ suppression in p-A collisions

FNAL E866/NuSea Collaboration

Research output: Contribution to journalArticlepeer-review


Measurements of the suppression of the yield per nucleon of J/ψ and ψ’ production for 800 GeV/c protons incident on heavy nuclear targets relative to light nuclear targets have been made with very broad coverage in xF and pT. The observed suppression is smallest at xF values of 0.25 and below and increases at larger values of xF. It is also strongest at small pT. Substantial differences between ψ’ and J/ψ production are observed for the first time in p-A collisions. The suppression for ψ’ production is stronger than that for J/ψ for xF near zero but becomes comparable to that for J/ψ for xF>0.6.

Original languageEnglish (US)
Pages (from-to)3256-3260
Number of pages5
JournalPhysical review letters
Issue number15
StatePublished - 2000

ASJC Scopus subject areas

  • General Physics and Astronomy


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