By the same authors

From the same journal

What is the nature of the ABC effect?

Research output: Contribution to journalArticlepeer-review

Published copy (DOI)

Author(s)

Department/unit(s)

Publication details

JournalInternational Journal of Modern Physics A
DatePublished - 10 Feb 2011
Issue number3-4
Volume26
Number of pages3
Pages (from-to)627-629
Original languageEnglish

Abstract

The ABC effect - an intriguing low-mass enhancement in the ππ invariant mass spectrum - is known from inclusive measurements of two-pion production in nuclear fusion reactions. Exclusive measurements have been carried out at CELSIUS/WASA and WASA-at-COSY for the fusion reactions leading to d, 3He and 4He. They all reveal this effect to be of isoscalar nature and associated with a narrow Lorentzian-shaped structure in the total cross section. The latter could point to the formation of an isoscalar resonance, which couples to the pn channel as well as to an intermediate ΔΔ state.

    Research areas

  • ΔΔ excitation, ABC effect, pn channel

Discover related content

Find related publications, people, projects, datasets and more using interactive charts.

View graph of relations