The large Nc baryon-meson It = Jt rule holds for three flavors

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

It has long been known that nonstrange baryon-meson scattering in the 1 / Nc expansion of QCD greatly simplifies when expressed in terms of t-channel exchanges: The leading-order amplitudes satisfy the selection rule It = Jt. We show that It = Jt, as well as Yt = 0, also hold for the leading amplitudes when the baryon and/or meson contain strange quarks, and also characterize their 1 / Nc corrections, thus opening a new front in the phenomenological study of baryon-meson scattering and baryon resonances.

Original languageEnglish (US)
Pages (from-to)68-73
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume639
Issue number2
DOIs
StatePublished - Aug 3 2006

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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