J/ψ absorption by π and ρ mesons in a meson exchange model with anomalous parity interactions

Yongseok Oh, Taesoo Song, Su Houng Lee

Research output: Contribution to journalArticle

150 Citations (Scopus)

Abstract

We reanalyze the dissociation process of the J/ψ by π and ρ mesons into D + D̄, D* + D̄, D + D̄*, and D* + D̄* within a meson exchange model. In addition to the dissociation mechanisms considered in the literature, we consider anomalous parity interactions, whose couplings are constrained by heavy quark spin symmetry and phenomenology. This opens new dissociation channels and adds new diagrams in the previously considered processes. Compared to the previous results, we find that these new additions have only a minor effect on the ρ + J/ψ total inelastic cross section, but reduce the one for π + J/ψ by about 50% near the threshold.

Original languageEnglish
Article number034901
Pages (from-to)349011-3490111
Number of pages3141101
JournalPhysical Review C - Nuclear Physics
Volume63
Issue number3
DOIs
Publication statusPublished - 2001 Jan 1

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parity
mesons
dissociation
interactions
phenomenology
diagrams
quarks
thresholds
cross sections
symmetry

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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abstract = "We reanalyze the dissociation process of the J/ψ by π and ρ mesons into D + D̄, D* + D̄, D + D̄*, and D* + D̄* within a meson exchange model. In addition to the dissociation mechanisms considered in the literature, we consider anomalous parity interactions, whose couplings are constrained by heavy quark spin symmetry and phenomenology. This opens new dissociation channels and adds new diagrams in the previously considered processes. Compared to the previous results, we find that these new additions have only a minor effect on the ρ + J/ψ total inelastic cross section, but reduce the one for π + J/ψ by about 50{\%} near the threshold.",
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J/ψ absorption by π and ρ mesons in a meson exchange model with anomalous parity interactions. / Oh, Yongseok; Song, Taesoo; Lee, Su Houng.

In: Physical Review C - Nuclear Physics, Vol. 63, No. 3, 034901, 01.01.2001, p. 349011-3490111.

Research output: Contribution to journalArticle

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AB - We reanalyze the dissociation process of the J/ψ by π and ρ mesons into D + D̄, D* + D̄, D + D̄*, and D* + D̄* within a meson exchange model. In addition to the dissociation mechanisms considered in the literature, we consider anomalous parity interactions, whose couplings are constrained by heavy quark spin symmetry and phenomenology. This opens new dissociation channels and adds new diagrams in the previously considered processes. Compared to the previous results, we find that these new additions have only a minor effect on the ρ + J/ψ total inelastic cross section, but reduce the one for π + J/ψ by about 50% near the threshold.

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