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Exploring scalar and vector bileptons at the LHC in a 331 model. (English) Zbl 1398.81296
Summary: We present an analysis on the production of two same-sign lepton pairs at the LHC, mediated by bileptons in the \(\mathrm{SU}(3)_c \times \mathrm{SU}(3)_L \times \mathrm U(1)_X\) theory, the so-called 331 model. Compared to other 331 scenarios, in this model the embedding of the hypercharge is obtained with the addition of 3 exotic quarks and doubly-charged vector gauge bosons with lepton numbers \(\pm 2\) in the spectrum \((Y^{\pm \pm})\), which can mediate the production of four-lepton final states. Furthermore, a complete description of the model requires the introduction of a Higgs scalar sector, which is a sextet of \(\mathrm{SU}(3)_L\), necessary in order to correctly account for the lepton masses. As a result of this, new doubly-charged scalar states \(H^{\pm \pm}\) are part of the spectrum as well and can in principle compete with the vector bileptons in giving rise to four-lepton final states. We investigate both channels and study several observables at the LHC, for both signal and Standard Model \(ZZ\) background. With respect to previous work on vector- and scalar-bilepton production, we use the most updated exclusion limits at the LHC and implement the 331 model in a full Monte Carlo simulation code, capable of being interfaced with any analysis framework. Our result is that the 331 signal can be discriminated from the background with a significance of 6–9 standard deviations, depending on the LHC luminosity, with the vector bileptons dominating over the scalar ones.
MSC:
81V22 Unified quantum theories
81T10 Model quantum field theories
Software:
FORM; HERWIG 5.1; SARAH
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[1] Frampton, P. H., Chiral dilepton model and the flavor question, Phys. Rev. Lett., 69, 2889, (1992)
[2] Pisano, F.; Pleitez, V., An SU(3) × U(1) model of electroweak interactions, Phys. Rev. D, 46, 410, (1992)
[3] Singer, M.; Valle, J. W.F.; Schechter, J., Canonical neutral current predictions from the weak electromagnetic group \(S U(3) \times U(1)\), Phys. Rev. D, 22, 738, (1980)
[4] Corcella, G.; Corianò, C.; Costantini, A.; Frampton, P. H., Bilepton signatures at the LHC, Phys. Lett. B, 773, 544, (2017)
[5] Dion, B.; Grégoire, T.; London, D.; Marleau, L.; Nadeau, H., Bilepton production at hadron colliders, Phys. Rev. D, 59, (1999)
[6] Ramirez Barreto, E.; Coutinho, Y. A.; Sá Borges, J., Vector-bilepton contribution to four lepton production at the LHC, Phys. Rev. D, 88, (2013) · Zbl 1192.81384
[7] Alves, A.; Ramirez Barreto, E.; Dias, A. G., Jets plus same-sign dileptons signatures from fermionic leptoquarks, Phys. Rev. D, 86, (2012)
[8] Nepomuceno, A. A.; Eccard, F. L.; Meirose, B., First results on bilepton production based on LHC collision data and predictions for run II, Phys. Rev. D, 94, (2016)
[9] Search for doubly-charged Higgs bosons in like-sign dilepton final states at \(\sqrt{s} = 7\) TeV with the ATLAS detector, Eur. Phys. J. C, 72, 2244, (2012)
[10] Alloul, A.; Frank, M.; Fuks, B.; Rausch de Traubenberg, M., Doubly-charged particles at the large hadron collider, Phys. Rev. D, 88, (2013)
[11] Ramirez Barreto, E.; Coutinho, Y. A.; Sá Borges, J., Vector- and scalar-bilepton pair production in hadron colliders, Phys. Rev. D, 83, (2011)
[12] Tonasse, M. D., Decay properties of a class of doubly charged Higgs bosons, Phys. Lett. B, 718, 86, (2012)
[13] Vermaseren, J. A.M., New features of FORM
[14] Staub, F., SARAH 4: a tool for (not only SUSY) model builders, Comput. Phys. Commun., 185, 1773, (2014) · Zbl 1348.81026
[15] Alwall, J., The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations, J. High Energy Phys., 1407, (2014)
[16] Corcella, G., HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes), J. High Energy Phys., 0101, (2001)
[17] Search for doubly charged Higgs boson production in multi-lepton final states with the ATLAS detector using proton-proton collisions at \(\sqrt{s} = 13\) TeV, Eur. Phys. J. C, 78, 199, (2018)
[18] CMS Collaboration, A search for doubly-charged Higgs boson production in three and four lepton final states at \(\sqrt{s} = 13\) TeV, CMS-PAS-HIG-16-036.
[19] Pati, J. C.; Salam, A., Lepton number as the fourth color, Phys. Rev. D, Phys. Rev. D, 11, 70, (1975), Erratum:
[20] Mohapatra, R. N.; Pati, J. C., Left-right gauge symmetry and an isoconjugate model of CP violation, Phys. Rev. D, 11, 566, (1975)
[21] Muhlleitner, M.; Spira, M., Note on doubly charged Higgs pair production at hadron colliders, Phys. Rev. D, 68, (2003)
[22] Cao, Q. H.; Liu, Y.; Xie, K. P.; Yan, B.; Zhang, D. M., Diphoton excess, low energy theorem, and the 331 model, Phys. Rev. D, 93, (2016)
[23] Tully, M. B.; Joshi, G. C., Int. J. Mod. Phys. A, 18, 1573, (2003)
[24] Dias, A. G.; Martinez, R.; Pleitez, V., Concerning the Landau pole in 3-3-1 models, Eur. Phys. C, 39, 101, (2005)
[25] Martinez, R.; Ochoa, F., The Landau pole and \(Z^\prime\) decays in the 331 dilepton model, Eur. Phys. C, 51, 101, (2005)
[26] Search for new high-mass phenomena in the dilepton final state using 36 fb^−1 of proton-proton collision data at \(\sqrt{s} = 13\) TeV with the ATLAS detector, J. High Energy Phys., 1710, (2017)
[27] CMS Collaboration, Search for high-mass resonances in dilepton final states in proton-proton collisions at \(\sqrt{s} = 13\), TeV CMS-EXO-16-047, CERN-EP-2018-027.
[28] Degrande, C.; Duhr, C.; Fuks, B.; Grellscheid, D.; Mattelaer, O.; Reiter, T., UFO - the universal feynrules output, Comput. Phys. Commun., 183, 1201, (2012)
[29] G. Corcella, A. Costantini, M. Ghezzi, L. Panizzi, G.M. Pruna, in preparation.
[30] Gomez Dumm, D., Leptophobic character of the Z-prime in an \(S U(3)_C \times S U(3)_L \times U(1)_X\) model, Phys. Lett. B, 411, 313, (1997)
[31] Araz, J. Y.; Corcella, G.; Frank, M.; Fuks, B., Loopholes in \(Z^\prime\) searches at the LHC: exploring supersymmetric and leptophobic scenarios, J. High Energy Phys., 1802, (2018)
[32] Ball, R. D., Parton distributions with QED corrections, Nucl. Phys. B, 877, 290, (2013) · Zbl 1284.81345
[33] A. Sidoti, Private communication.
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