A novel experimental search channel for very light higgs bosons in the 2HDM type I
Abstract We present a reinterpretation study of existing results from the CMS Collaboration, specifically, searches for light Beyond the Standard Model (BSM) Higgs pairs produced in the chain decay $$pp\rightarrow H_\textrm{SM}\rightarrow hh(aa)$$ p p → H SM → h h ( a a ) into a variety of final sta...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-03-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-12574-3 |
| _version_ | 1827254008273698816 |
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| author | S. Moretti S. Semlali C. H. Shepherd-Themistocleous |
| author_facet | S. Moretti S. Semlali C. H. Shepherd-Themistocleous |
| author_sort | S. Moretti |
| collection | DOAJ |
| description | Abstract We present a reinterpretation study of existing results from the CMS Collaboration, specifically, searches for light Beyond the Standard Model (BSM) Higgs pairs produced in the chain decay $$pp\rightarrow H_\textrm{SM}\rightarrow hh(aa)$$ p p → H SM → h h ( a a ) into a variety of final states, in the context of the CP-conserving 2-Higgs Doublet Model (2HDM) Type-I. Through this, we test the Large Hadron Collider (LHC) sensitivity to a possible new signature, $$pp\rightarrow H_\textrm{SM}\rightarrow ZA\rightarrow ZZ h$$ p p → H SM → Z A → Z Z h , with $$ZZ\rightarrow jj \mu ^+\mu ^-$$ Z Z → j j μ + μ - and $$h\rightarrow b\bar{b}$$ h → b b ¯ . We perform a systematic scan over the 2HDM Type-I parameter space, by taking into account all available theoretical and experimental constraints, in order to find a region with a potentially visible signal. We investigate the significance of it through a full Monte Carlo simulation down to the parametrised detector level. We show that such a signal is an alternative promising channel to standard four-body searches for light BSM Higgs bosons at the LHC already with an integrated luminosity of $${{\mathcal {L}}} = 300~\textrm{fb}^{-1}$$ L = 300 fb - 1 . For a tenfold increase of the latter, discovery should be possible over most of the allowed parameter space. |
| first_indexed | 2024-04-25T01:04:22Z |
| format | Article |
| id | doaj.art-edf83275f881431c89c1b8f67c2d9fda |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2025-03-22T01:00:17Z |
| publishDate | 2024-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-edf83275f881431c89c1b8f67c2d9fda2024-05-12T11:30:27ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-03-0184311610.1140/epjc/s10052-024-12574-3A novel experimental search channel for very light higgs bosons in the 2HDM type IS. Moretti0S. Semlali1C. H. Shepherd-Themistocleous2School of Physics and Astronomy, University of SouthamptonSchool of Physics and Astronomy, University of SouthamptonParticle Physics Department, Rutherford Appleton LaboratoryAbstract We present a reinterpretation study of existing results from the CMS Collaboration, specifically, searches for light Beyond the Standard Model (BSM) Higgs pairs produced in the chain decay $$pp\rightarrow H_\textrm{SM}\rightarrow hh(aa)$$ p p → H SM → h h ( a a ) into a variety of final states, in the context of the CP-conserving 2-Higgs Doublet Model (2HDM) Type-I. Through this, we test the Large Hadron Collider (LHC) sensitivity to a possible new signature, $$pp\rightarrow H_\textrm{SM}\rightarrow ZA\rightarrow ZZ h$$ p p → H SM → Z A → Z Z h , with $$ZZ\rightarrow jj \mu ^+\mu ^-$$ Z Z → j j μ + μ - and $$h\rightarrow b\bar{b}$$ h → b b ¯ . We perform a systematic scan over the 2HDM Type-I parameter space, by taking into account all available theoretical and experimental constraints, in order to find a region with a potentially visible signal. We investigate the significance of it through a full Monte Carlo simulation down to the parametrised detector level. We show that such a signal is an alternative promising channel to standard four-body searches for light BSM Higgs bosons at the LHC already with an integrated luminosity of $${{\mathcal {L}}} = 300~\textrm{fb}^{-1}$$ L = 300 fb - 1 . For a tenfold increase of the latter, discovery should be possible over most of the allowed parameter space.https://doi.org/10.1140/epjc/s10052-024-12574-3 |
| spellingShingle | S. Moretti S. Semlali C. H. Shepherd-Themistocleous A novel experimental search channel for very light higgs bosons in the 2HDM type I European Physical Journal C: Particles and Fields |
| title | A novel experimental search channel for very light higgs bosons in the 2HDM type I |
| title_full | A novel experimental search channel for very light higgs bosons in the 2HDM type I |
| title_fullStr | A novel experimental search channel for very light higgs bosons in the 2HDM type I |
| title_full_unstemmed | A novel experimental search channel for very light higgs bosons in the 2HDM type I |
| title_short | A novel experimental search channel for very light higgs bosons in the 2HDM type I |
| title_sort | novel experimental search channel for very light higgs bosons in the 2hdm type i |
| url | https://doi.org/10.1140/epjc/s10052-024-12574-3 |
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