Vertex displacements for acausal particles: Testing the Lee-Wick standard model at the LHC

We propose to search for wrong displaced vertices, where decay products of the secondary vertex move towards the primary vertex instead of away from it, as a signature for microscopic violation of causality. We analyze in detail the leptonic sector of the recently proposed Lee-Wick Standard Model, w...

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Autores principales: Álvarez, E., Da Rold, L., Schat, C., Szynkman, A.
Formato: JOUR
Materias:
Beyond Standard Model
Rare Decays
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_11266708_v2009_n10_p_Alvarez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_11266708_v2009_n10_p_Alvarez
record_format dspace
spelling todo:paper_11266708_v2009_n10_p_Alvarez2023-10-03T16:06:43Z Vertex displacements for acausal particles: Testing the Lee-Wick standard model at the LHC Álvarez, E. Da Rold, L. Schat, C. Szynkman, A. Beyond Standard Model Rare Decays We propose to search for wrong displaced vertices, where decay products of the secondary vertex move towards the primary vertex instead of away from it, as a signature for microscopic violation of causality. We analyze in detail the leptonic sector of the recently proposed Lee-Wick Standard Model, which provides a well motivated framework to study acausal effects. We find that, assuming Minimal Flavor Violation, the Lee-Wick partners of the electron, ℓ̃ e and ẽ, can produce measurable wrong vertices at the LHC, the most promising channel being qq̄ ℓ̃ eℓ̃ ee +e -jjjj. A Monte-Carlo simulation using MadGraph/MadEvent suggests that for M ℓ ≲450GeV the measurement of these acausal vertex displacements should be accessible in the LHC era. © SISSA 2009. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_11266708_v2009_n10_p_Alvarez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Beyond Standard Model
Rare Decays
spellingShingle Beyond Standard Model
Rare Decays
Álvarez, E.
Da Rold, L.
Schat, C.
Szynkman, A.
Vertex displacements for acausal particles: Testing the Lee-Wick standard model at the LHC
topic_facet Beyond Standard Model
Rare Decays
description We propose to search for wrong displaced vertices, where decay products of the secondary vertex move towards the primary vertex instead of away from it, as a signature for microscopic violation of causality. We analyze in detail the leptonic sector of the recently proposed Lee-Wick Standard Model, which provides a well motivated framework to study acausal effects. We find that, assuming Minimal Flavor Violation, the Lee-Wick partners of the electron, ℓ̃ e and ẽ, can produce measurable wrong vertices at the LHC, the most promising channel being qq̄ ℓ̃ eℓ̃ ee +e -jjjj. A Monte-Carlo simulation using MadGraph/MadEvent suggests that for M ℓ ≲450GeV the measurement of these acausal vertex displacements should be accessible in the LHC era. © SISSA 2009.
format JOUR
author Álvarez, E.
Da Rold, L.
Schat, C.
Szynkman, A.
author_facet Álvarez, E.
Da Rold, L.
Schat, C.
Szynkman, A.
author_sort Álvarez, E.
title Vertex displacements for acausal particles: Testing the Lee-Wick standard model at the LHC
title_short Vertex displacements for acausal particles: Testing the Lee-Wick standard model at the LHC
title_full Vertex displacements for acausal particles: Testing the Lee-Wick standard model at the LHC
title_fullStr Vertex displacements for acausal particles: Testing the Lee-Wick standard model at the LHC
title_full_unstemmed Vertex displacements for acausal particles: Testing the Lee-Wick standard model at the LHC
title_sort vertex displacements for acausal particles: testing the lee-wick standard model at the lhc
url http://hdl.handle.net/20.500.12110/paper_11266708_v2009_n10_p_Alvarez
work_keys_str_mv AT alvareze vertexdisplacementsforacausalparticlestestingtheleewickstandardmodelatthelhc
AT daroldl vertexdisplacementsforacausalparticlestestingtheleewickstandardmodelatthelhc
AT schatc vertexdisplacementsforacausalparticlestestingtheleewickstandardmodelatthelhc
AT szynkmana vertexdisplacementsforacausalparticlestestingtheleewickstandardmodelatthelhc
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