Anomaly driven signatures of new invisible physics at the Large Hadron Collider |
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Authors: | Ignatios Antoniadis Alexey Boyarsky Sam Espahbodi Oleg Ruchayskiy James D Wells |
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Institution: | 1. CERN PH-TH, CH-1211 Geneva 23, Switzerland;2. CPHT, UMR du CNRS 7644, École Polytechnique, 91128 Palaiseau Cedex, France;3. ETHZ, Zürich, CH-8093, Switzerland;4. Bogolyubov Institute for Theoretical Physics, Kiev 03680, Ukraine;5. MCTP, University of Michigan, Ann Arbor, MI 48109, USA;6. École Polytechnique Fédérale de Lausanne, FSB/ITP/LPPC, BSP, CH-1015, Lausanne, Switzerland |
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Abstract: | Many extensions of the Standard Model (SM) predict new neutral vector bosons at energies accessible by the Large Hadron Collider (LHC). We study an extension of the SM with new chiral fermions subject to non-trivial anomaly cancellations. If the new fermions have SM charges, but are too heavy to be created at LHC, and the SM fermions are not charged under the extra gauge field, one would expect that this new sector remains completely invisible at LHC. We show, however, that a non-trivial anomaly cancellation between the new heavy fermions may give rise to observable effects in the gauge boson sector that can be seen at the LHC and distinguished from backgrounds. |
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