Change search
CiteExportLink to record
Permanent link

Direct link
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Charge symmetry breaking in dd -> He-4 pi(0) with WASA-at-COSY
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
Show others and affiliations
2014 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 739, 44-49 p.Article in journal (Refereed) Published
Abstract [en]

Charge symmetry breaking (CSB) observables are a suitable experimental tool to examine effects induced by quark masses on the nuclear level. Previous high precision data from TRIUMF and IUCF are currently used to develop a consistent description of CSB within the framework of chiral perturbation theory. In this work the experimental studies on the reaction dd -> He-4 pi(0) have been extended towards higher excess energies in order to provide information on the contribution of p-waves in the final state. For this, an exclusive measurement has been carried out at a beam momentum of p(d) = 1.2GeV/c using the WASA-at-COSY facility. The total cross section amounts to sigma(tot) =(118 +/- 18(stat) +/- 13(sys) +/- 8(ext)) p band first data on the differential cross section are consistent with s-wave pion production.

Place, publisher, year, edition, pages
2014. Vol. 739, 44-49 p.
Keyword [en]
Charge symmetry breaking, Deuteron-deuteron interactions, Pion production
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-241404DOI: 10.1016/j.physletb.2014.10.029ISI: 000346002000006OAI: diva2:782149
Available from: 2015-01-20 Created: 2015-01-12 Last updated: 2017-12-05Bibliographically approved

Open Access in DiVA

fulltext(438 kB)