Search strategy for gluinos at the LHC with a Higgs boson decaying into tau leptons
Abstract The possibility in supersymmetric scenarios that the dark matter candidate is a Higgsino-like neutralino means that its production can be associated with Higgs bosons. Taking advantage of this fact, we propose a LHC search strategy for gluinos with $$\tau $$ τ leptons in the final state, co...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-10-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-022-10951-4 |
| _version_ | 1811233772952092672 |
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| author | Ernesto Arganda Antonio Delgado Roberto A. Morales Mariano Quirós |
| author_facet | Ernesto Arganda Antonio Delgado Roberto A. Morales Mariano Quirós |
| author_sort | Ernesto Arganda |
| collection | DOAJ |
| description | Abstract The possibility in supersymmetric scenarios that the dark matter candidate is a Higgsino-like neutralino means that its production can be associated with Higgs bosons. Taking advantage of this fact, we propose a LHC search strategy for gluinos with $$\tau $$ τ leptons in the final state, coming from the decay of a Higgs boson. We consider the strong production of a pair of gluinos, one of which decays into the Higgsino plus jets while the other decays into the bino plus jets. In turn, this bino decays into the Higgsino plus a Higgs boson which finally decays into a $$\tau $$ τ -lepton pair. Therefore, the experimental signature under study consists of 4 jets, 2 $$\tau $$ τ leptons, and a large amount of missing transverse energy. This work represents a proof of principle of a search that is sensitive to a spectrum such that the gluino does not directly decay to the dark matter candidate but to an intermediate electroweakino that then produces Higgs bosons in its subsequent decay. Our cut-based search strategy allows us to reach, for a LHC center-of-mass energy of 14 TeV and a total integrated luminosity of 1 ab $$^{-1}$$ - 1 , significances of up to 2 standard deviations, considering systematic uncertainties in the SM background of 30%. The projections for 3 ab $$^{-1}$$ - 1 are encouraging, with significances at the evidence level, which in more optimistic experimental scenarios could exceed 4 standard deviations. |
| first_indexed | 2024-04-12T11:25:04Z |
| format | Article |
| id | doaj.art-118fb9501f61431ab4c73e211c886f37 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-12T11:25:04Z |
| publishDate | 2022-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-118fb9501f61431ab4c73e211c886f372022-12-22T03:35:15ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522022-10-0182101810.1140/epjc/s10052-022-10951-4Search strategy for gluinos at the LHC with a Higgs boson decaying into tau leptonsErnesto Arganda0Antonio Delgado1Roberto A. Morales2Mariano Quirós3Instituto de Física Teórica UAM/CSICDepartment of Physics, University of Notre DameInstituto de Física Teórica UAM/CSICInstitut de Física d’Altes Energies (IFAE) and BISTAbstract The possibility in supersymmetric scenarios that the dark matter candidate is a Higgsino-like neutralino means that its production can be associated with Higgs bosons. Taking advantage of this fact, we propose a LHC search strategy for gluinos with $$\tau $$ τ leptons in the final state, coming from the decay of a Higgs boson. We consider the strong production of a pair of gluinos, one of which decays into the Higgsino plus jets while the other decays into the bino plus jets. In turn, this bino decays into the Higgsino plus a Higgs boson which finally decays into a $$\tau $$ τ -lepton pair. Therefore, the experimental signature under study consists of 4 jets, 2 $$\tau $$ τ leptons, and a large amount of missing transverse energy. This work represents a proof of principle of a search that is sensitive to a spectrum such that the gluino does not directly decay to the dark matter candidate but to an intermediate electroweakino that then produces Higgs bosons in its subsequent decay. Our cut-based search strategy allows us to reach, for a LHC center-of-mass energy of 14 TeV and a total integrated luminosity of 1 ab $$^{-1}$$ - 1 , significances of up to 2 standard deviations, considering systematic uncertainties in the SM background of 30%. The projections for 3 ab $$^{-1}$$ - 1 are encouraging, with significances at the evidence level, which in more optimistic experimental scenarios could exceed 4 standard deviations.https://doi.org/10.1140/epjc/s10052-022-10951-4 |
| spellingShingle | Ernesto Arganda Antonio Delgado Roberto A. Morales Mariano Quirós Search strategy for gluinos at the LHC with a Higgs boson decaying into tau leptons European Physical Journal C: Particles and Fields |
| title | Search strategy for gluinos at the LHC with a Higgs boson decaying into tau leptons |
| title_full | Search strategy for gluinos at the LHC with a Higgs boson decaying into tau leptons |
| title_fullStr | Search strategy for gluinos at the LHC with a Higgs boson decaying into tau leptons |
| title_full_unstemmed | Search strategy for gluinos at the LHC with a Higgs boson decaying into tau leptons |
| title_short | Search strategy for gluinos at the LHC with a Higgs boson decaying into tau leptons |
| title_sort | search strategy for gluinos at the lhc with a higgs boson decaying into tau leptons |
| url | https://doi.org/10.1140/epjc/s10052-022-10951-4 |
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