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A model of quark and lepton compositeness

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arxiv 2112.15132 v1 pith:COZEK23B submitted 2021-12-30 hep-ph hep-th

classification hep-phhep-th
keywords boundchirallambdaleptonsmodelprebaryonspreonsquarks
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abstract

In the chiral $SU(15)$ gauge theory presented here, the quarks and leptons are bound states ("prebaryons") of massless preons. The Standard Model charges of the preons imply 3 generations of quarks and leptons, plus some vectorlike fermions lighter than the confining scale $\Lambda_{\rm pre}$. Under certain assumptions about the chiral dynamics, bound states of two prebaryons behave as Higgs fields. The QCD and electroweak groups may unify above $\Lambda_{\rm pre}$, while $SU(15)$ prevents rapid proton decay.

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Cited by 1 Pith paper

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  1. The flavour of SU(15) composite quarks and leptons

    hep-ph 2026-07 conditional novelty 6.0 of 10

    A hand-imposed hierarchical texture for two flavour spurions fits the SM quark/lepton masses and CKM, and the same spurions make the electron EDM and K0-Kbar0 mixing the strongest probes of the SU(15) preon scale.

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