Testing for three-body quark forces in L=1 excited baryons

Dan Pirjol, Carlos Schat

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We discuss the matching of the quark model to the effective mass operator of the 1/Nc expansion using the permutation group SN. As an illustration of the general procedure we perform the matching of the Isgur-Karl model for the spectrum of the negative parity L=1 excited baryons. Assuming the most general two-body quark Hamiltonian, we derive two correlations among the masses and mixing angles of these states which should hold in any quark model. These correlations constrain the mixing angles and can be used to test for the presence of three-body quark forces.

Original languageEnglish
Title of host publicationXI Hadron Physics
Pages159-164
Number of pages6
DOIs
StatePublished - 2010
EventInternational Conference "1st Stars and Galaxies: Challenges for the Next Decade" - Sao Paulo, Brazil
Duration: 21 Mar 201026 Mar 2010

Publication series

NameAIP Conference Proceedings
Volume1296
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference "1st Stars and Galaxies: Challenges for the Next Decade"
Country/TerritoryBrazil
CitySao Paulo
Period21/03/1026/03/10

Keywords

  • 1/N expansion of QCD
  • Quark model
  • excited baryons

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