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Searches for heavy neutral leptons at FCC-ee in final states including a muon.

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Title: Searches for heavy neutral leptons at FCC-ee in final states including a muon.
Authors: Bellagamba, L.1 (AUTHOR) lorenzo.bellagamba@cern.ch, Polesello, G.2 (AUTHOR) giacomo.polesello@cern.ch, Valle, N.2 (AUTHOR) nicolo.valle@cern.ch
Source: European Physical Journal C -- Particles & Fields. Sep2025, Vol. 85 Issue 9, p1-15. 15p.
Subjects: Muons, Neutrinos, Monte Carlo method, Parameterization, Colliders (Nuclear physics), Particle decays, Particle accelerators, Lepton interactions
Abstract: The sensitivity of the CERN FCC-ee collider to the production of heavy neutral leptons (HNL) is investigated. The study focuses on a simplified model with a single low-mass HNL mixing with a muon, and addresses the fully leptonic and semileptonic decay modes of the HNL. Complete Monte Carlo analyses of signal and background based on a parametrised detector simulation are performed for the FCC-ee run at the Z pole, resulting in an estimate of the intervals of the mixing parameter for which the FCC-ee will have a 95% CL sensitivity as a function of the HNL mass. [ABSTRACT FROM AUTHOR]
Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Searches for heavy neutral leptons at FCC-ee in final states including a muon.
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  Data: <searchLink fieldCode="AR" term="%22Bellagamba%2C+L%2E%22">Bellagamba, L.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lorenzo.bellagamba@cern.ch</i><br /><searchLink fieldCode="AR" term="%22Polesello%2C+G%2E%22">Polesello, G.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> giacomo.polesello@cern.ch</i><br /><searchLink fieldCode="AR" term="%22Valle%2C+N%2E%22">Valle, N.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> nicolo.valle@cern.ch</i>
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  Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+C+--+Particles+%26+Fields%22">European Physical Journal C -- Particles & Fields</searchLink>. Sep2025, Vol. 85 Issue 9, p1-15. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Muons%22">Muons</searchLink><br /><searchLink fieldCode="DE" term="%22Neutrinos%22">Neutrinos</searchLink><br /><searchLink fieldCode="DE" term="%22Monte+Carlo+method%22">Monte Carlo method</searchLink><br /><searchLink fieldCode="DE" term="%22Parameterization%22">Parameterization</searchLink><br /><searchLink fieldCode="DE" term="%22Colliders+%28Nuclear+physics%29%22">Colliders (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+decays%22">Particle decays</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+accelerators%22">Particle accelerators</searchLink><br /><searchLink fieldCode="DE" term="%22Lepton+interactions%22">Lepton interactions</searchLink>
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  Label: Abstract
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  Data: The sensitivity of the CERN FCC-ee collider to the production of heavy neutral leptons (HNL) is investigated. The study focuses on a simplified model with a single low-mass HNL mixing with a muon, and addresses the fully leptonic and semileptonic decay modes of the HNL. Complete Monte Carlo analyses of signal and background based on a parametrised detector simulation are performed for the FCC-ee run at the Z pole, resulting in an estimate of the intervals of the mixing parameter for which the FCC-ee will have a 95% CL sensitivity as a function of the HNL mass. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1140/epjc/s10052-025-14749-y
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Neutrinos
        Type: general
      – SubjectFull: Monte Carlo method
        Type: general
      – SubjectFull: Parameterization
        Type: general
      – SubjectFull: Colliders (Nuclear physics)
        Type: general
      – SubjectFull: Particle decays
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      – SubjectFull: Particle accelerators
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      – SubjectFull: Lepton interactions
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      – TitleFull: Searches for heavy neutral leptons at FCC-ee in final states including a muon.
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            – D: 01
              M: 09
              Text: Sep2025
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              Y: 2025
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