Conference Presentation

PUBDB-2025-03687

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Search for long-lived supersymmetric taus in CMS using BDT

Vashishtha, S. (Corresponding author)DESY* ; Melzer-Pellmann, I.DESY* ; Shchedrolosiev, M.Extern*

2025

Abstract: The standard model is an effective theory but a low-energy approximation to a more complete theory. Supersymmetry (SUSY) extends the Standard Model but is expected to be broken and mediated to the visible sector via mechanisms like gravity or gauge mediation. In the search for beyond the standard model processes, we present an ongoing analysis based on simplified models to study the pair production and semileptonic decay of the hypothetical SUSY partner of the tau lepton, known as the stau (τ) within the CMS experiment at the CERN Large Hadron Collider (LHC). In gauge-mediated SUSY-breaking scenarios, the stau has macroscopic lifetime, and decays via τ → τχ01. This study focuses on events where one tau lepton decays to a muon, and the other decays hadronically, forming a jet. Using a dedicated machine learning algorithm for displaced tau tagging, we reconstruct the stau.

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Contributing Institute(s):

1. LHC/CMS Experiment (CMS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. LHC: CMS

Appears in the scientific report 2025

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Conference Presentation Braga da Rosa, L. (Corresponding author)DESY*
MaPSA quality control for the CMS phase-II detector upgrade
2025DPG Spring Meeting (German Physical Society), DPG2025, GöttingenGöttingen, Germany, 31 Mar 2025 - 4 Apr 20252025-03-312025-04-04     Files  Fulltext BibTeX | EndNote: XML, Text | RIS

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