Probing Color Octet Electrons at the LHC

Abstract

Models with quark and lepton compositeness predict the existence of colored partners of the Standard Model leptons. In this paper we study the LHC phenomenology of a charged colored lepton partner, namely the color octet electron, $e_8$ in an effective theory framework. We explore various mechanisms for resonant production of $e_8$'s. With the pair production channel the 14 TeV LHC can probe $e_8$'s with masses up to 2.5 TeV (2.8 TeV) with 100 fb${}^{-1}$ (300 fb${}^{-1}$) of integrated luminosity. A common feature in all the resonant production channels is the presence of two high $p_T$ electrons and at least one high $p_T$ jet in the final state. Using this feature, we implement a search method where the signal is a combination of pair and single production events. This method has potential to increase the LHC reach significantly. Using the combined signal we estimate the LHC discovery potential for the $e_8$'s. Our analysis shows that the LHC with 14 TeV center-of-mass energy and 100 fb${}^{-1}$ (300 fb${}^{-1}$) of integrated luminosity can probe $e_8$'s with masses up to 3.4 TeV (4 TeV) for the compositeness scale of 5 TeV.

12 pages, 10 figures and 2 tables. Typos fixed, reference added. The version to appear in Phys. Rev. D

References in corpus (6)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• FeynRules - Feynman rules made easy
• QCD radiation in the production of heavy colored particles at the LHC
• Search for pair production of first- and second-generation scalar leptoquarks in pp collisions at sqrt(s) = 7 TeV
• Search for pair production of third-generation leptoquarks and top squarks in pp collisions at sqrt(s) = 7 TeV

Cited by in corpus (21)

• Pair Production of Scalar Leptoquarks at the LHC to NLO Parton Shower Accuracy
• $R_{D^{(\ast )}}$ motivated ${\mathcal{S}}_1$ leptoquark scenarios: Impact of interference on the exclusion limits from LHC data
• Single Productions of Colored Particles at the LHC: An Example with Scalar Leptoquarks
• Addressing the ${\mathbf{R}}_{D^{(\ast )}}$ anomalies with an ${\mathbf{S}}_1$ leptoquark from $\mathbf{SO}(10)$ grand unification
• Hunting scalar leptoquarks with boosted tops and light leptons
• Combined explanation of $W$-mass, muon $g-2$, $R_{K^{(\ast )}}$ and $R_{D^{(\ast )}}$ anomalies in a singlet-triplet scalar leptoquark model
• Precise limits on the charge-$2/3$ $U_1$ vector leptoquark
• Improving third-generation leptoquark searches with combined signals and boosted top
• Roadmap to explore vectorlike quarks decaying to a new scalar or pseudoscalar
• Boosting vector leptoquark searches with boosted tops
• Probing Compositeness with the CMS $eejj$ & $eej$ Data
• Right-handed neutrino pair production via second-generation leptoquarks
• Fresh look at the LHC limits on scalar leptoquarks
• Resonant Production of Color Octet Muons at the Future Circular Collider Based Muon-Proton Colliders
• Looking for leptogluons
• Leptogluons in dilepton production at LHC
• Vector leptoquark contributions to lepton dipole moments
• Color Octet Electron Search Potential of the FCC Based e-p Colliders
• New IceCube data and color octet neutrino interpretation of the PeV energy events
• Tagging fully hadronic exotic decays of the vectorlike $\mathbf{B}$ quark using a graph neural network
• SppC based energy frontier lepton-proton colliders: luminosity and physics