From Ω- to Ωb, doubly heavy baryons and exotics

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Abstract

I discuss accurate theoretical predictions for masses of baryons containing the b quark. I point out an approximate effective supersymmetry between heavy quark baryons and mesons and provide predictions for the magnetic moments of Λc and Λb. Proper treatment of the color-magnetic hyperfine interaction in QCD is crucial for obtaining these results. Closely related methods are then applied to doubly-heavy hadrons: the recently observed exotic QQqq mesons and QQq baryons. Predictions are given for the masses and decay modes of additional QQqq mesons and of QQq baryons: Ξcc(ccq), Ξbb(bbq) and Ξbc(bcq), which might soon be seen experimentally, as indicated by the large number of Bc mesons observed by LHCb.

Original languageEnglish
Title of host publication50 Years of Quarks
PublisherWorld Scientific Publishing Co.
Pages345-365
Number of pages21
ISBN (Electronic)9789814618113
ISBN (Print)9789814618090
DOIs
StatePublished - 1 Jan 2015

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