J/ψ dissociation by pions in QCD

Francisco O. Durães, Su Houng Lee, Fernando S. Navarra, Marina Nielsen

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

We compute the J/ψ → charmed mesons cross section using QCD sum rules. This cross section is important to distinguish the suppression in the production of J/ψ through the dissociation by comoving pions and through the formation of quarkgluon plasma. Our sum rules for the J/ψ π → D̄ D*, D D̄*, D̄* D* and D̄ D hadronic matrix elements are constructed by using vacuum-pion correlation functions, and we work up to twist-4. After doing a thermal average we get (σπJ/ψ v) ∼ 0.2-0.4 mb at T = 150 MeV.

Original languageEnglish
Pages (from-to)97-103
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume564
Issue number1-2
DOIs
Publication statusPublished - 2003 Jun 3

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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