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Separating Fermion and Gauge Resonances with Species-Dependent Lightcones in Warped Geometry
Abstract
Extra-dimensional flavor models generally tie together the mass scales of gauge and fermion Kaluza--Klein modes. We show how species-dependent five-dimensional lightcones, which can be generated, for example, by a simple scalar profile, can separate these scales while preserving four-dimensional Lorentz invariance and any proposed extra-dimensional flavor structure. In two illustrative models on stabilized backgrounds, right-handed quark partners lie at 6.6--12 TeV with 30 TeV KK gluons, or a 5.5 TeV gluon lies below fermion partners above 10 TeV. We compare with deconstructed and three-brane models.
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BibTeX
@misc{randall2026separating,
title = {{Separating Fermion and Gauge Resonances with Species-Dependent Lightcones in Warped Geometry}},
author = {Lisa Randall and Marcos Riojas},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.40967},
eprint = {2610.40967},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.40967},
}
RIS
TY - UNPB
TI - Separating Fermion and Gauge Resonances with Species-Dependent Lightcones in Warped Geometry
AU - Lisa Randall
AU - Marcos Riojas
PY - 2026
DA - 2026/10/29
PB - arXiv
DO - 10.48550/arxiv.2610.40967
UR - https://arxiv.org/abs/2610.40967
AB - Extra-dimensional flavor models generally tie together the mass scales of gauge and fermion Kaluza--Klein modes. We show how species-dependent five-dimensional lightcones, which can be generated, for example, by a simple scalar profile, can separate these scales while preserving four-dimensional Lorentz invariance and any proposed extra-dimensional flavor structure. In two illustrative models on stabilized backgrounds, right-handed quark partners lie at 6.6--12 TeV with 30 TeV KK gluons, or a 5.5 TeV gluon lies below fermion partners above 10 TeV. We compare with deconstructed and three-brane models.
ER -