Mutually elusive: vectorlike antileptons and leptoquarks (2312.09189v2)
Abstract: We study the properties of vectorlike fermions that have the same gauge charges as the Standard Model lepton doublets, but opposite lepton number. These antileptons undergo decays mediated by heavier scalar leptoquarks, while the symmetries of this renormalizable model protect the vectorlike fermions and the leptoquarks from standard decays probed so far at colliders. If the new particles couple predominantly to second-generation quarks, then their collider probes involve multiple jets and two taus or neutrinos, and are hampered by large backgrounds. If couplings to third-generation quarks are large, then the collider signals involve top quarks, and can be probed more efficiently at the LHC. Even in that case, both the vectorlike fermion doublet and the leptoquarks remain more elusive than in models with standard decays.
- N. Kumar and S. P. Martin, Phys. Rev. D 92, 115018 (2015), arXiv:1510.03456 [hep-ph] .
- P. N. Bhattiprolu and S. P. Martin, Phys. Rev. D 100, 015033 (2019), arXiv:1905.00498 [hep-ph] .
- A. M. Sirunyan et al. (CMS), Phys. Rev. D 100, 052003 (2019), arXiv:1905.10853 [hep-ex] .
- A. Tumasyan et al. (CMS), Phys. Rev. D 105, 112007 (2022), arXiv:2202.08676 [hep-ex] .
- B. A. Dobrescu and F. Yu, J. Phys. G 45, 08LT01 (2018), arXiv:1612.01909 [hep-ph] .
- A. Greljo and B. A. Stefanek, Phys. Lett. B 782, 131 (2018), arXiv:1802.04274 [hep-ph] .
- A. Tumasyan et al. (CMS), Phys. Lett. B 846, 137713 (2023), arXiv:2208.09700 [hep-ex] .
- E. Bernreuther and B. A. Dobrescu, JHEP 07, 079 (2023), arXiv:2304.08509 [hep-ph] .
- A. Crivellin and L. Schnell, Comput. Phys. Commun. 271, 108188 (2022), arXiv:2105.04844 [hep-ph] .
- L. Silvestrini,  arXiv:1905.00798 [hep-ph] .
- G. Isidori, in 2012 European School of High-Energy Physics (2014) pp. 69–105, arXiv:1302.0661 [hep-ph] .
- R. Mandal and A. Pich, JHEP 12, 089 (2019), arXiv:1908.11155 [hep-ph] .
- M. Bona et al. (UTfit), Rend. Lincei Sci. Fis. Nat. 34, 37 (2023), arXiv:2212.03894 [hep-ph], [http://www.utfit.org/UTfit/ResultsSummer2022NP] .
- S. D. Thomas and J. D. Wells, Phys. Rev. Lett. 81, 34 (1998), arXiv:hep-ph/9804359 .
- R. D. Ball et al. (NNPDF), Eur. Phys. J. C 82, 428 (2022), arXiv:2109.02653 [hep-ph] .
- E. Bothmann et al. (Sherpa), SciPost Phys. 7, 034 (2019), arXiv:1905.09127 [hep-ph] .
- T. C. Collaboration et al. (CMS), JHEP 10, 244 (2019), arXiv:1908.04722 [hep-ex] .
- G. Aad et al. (ATLAS), Phys. Rev. D 104, 112005 (2021a), arXiv:2108.07665 [hep-ex] .
- G. Aad et al. (ATLAS), JHEP 06, 179 (2021b), arXiv:2101.11582 [hep-ex] .
- A. M. Sirunyan et al. (CMS), Eur. Phys. J. C 80, 3 (2020), arXiv:1909.03460 [hep-ex] .
- A. M. Sirunyan et al. (CMS), JINST 13, P05011 (2018), arXiv:1712.07158 [physics.ins-det] .
- R. L. Workman et al. (Particle Data Group), PTEP 2022, 083C01 (2022).
- G. Aad et al. (ATLAS), Eur. Phys. J. C 80, 1085 (2020), arXiv:2007.14858 [hep-ex] .
- A. Hayrapetyan et al. (CMS), Phys. Lett. B 847, 138290 (2023), arXiv:2305.13439 [hep-ex] .
- G. Aad et al. (ATLAS), JHEP 05, 093 (2021c), arXiv:2101.12527 [hep-ex] .
Sponsor
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.
Top Community Prompts
Collections
Sign up for free to add this paper to one or more collections.