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Theory, phenomenology, and experimental avenues for dark showers: a Snowmass 2021 report

Albouy, G. ; Doglioni, C. LU ; Hemme, N. ; Sjöstrand, T. LU orcid and Wang, L. (2022) In European Physical Journal C 82(12).
Abstract
In this work, we consider the case of a strongly coupled dark/hidden sector, which extends the Standard Model (SM) by adding an additional non-Abelian gauge group. These extensions generally contain matter fields, much like the SM quarks, and gauge fields similar to the SM gluons. We focus on the exploration of such sectors where the dark particles are produced at the LHC through a portal and undergo rapid hadronization within the dark sector before decaying back, at least in part and potentially with sizeable lifetimes, to SM particles, giving a range of possibly spectacular signatures such as emerging or semi-visible jets. Other, non-QCD-like scenarios leading to soft unclustered energy patterns or glueballs are also discussed. After a... (More)
In this work, we consider the case of a strongly coupled dark/hidden sector, which extends the Standard Model (SM) by adding an additional non-Abelian gauge group. These extensions generally contain matter fields, much like the SM quarks, and gauge fields similar to the SM gluons. We focus on the exploration of such sectors where the dark particles are produced at the LHC through a portal and undergo rapid hadronization within the dark sector before decaying back, at least in part and potentially with sizeable lifetimes, to SM particles, giving a range of possibly spectacular signatures such as emerging or semi-visible jets. Other, non-QCD-like scenarios leading to soft unclustered energy patterns or glueballs are also discussed. After a review of the theory, existing benchmarks and constraints, this work addresses how to build consistent benchmarks from the underlying physical parameters and present new developments for the pythia Hidden Valley module, along with jet substructure studies. Finally, a series of improved search strategies is presented in order to pave the way for a better exploration of the dark showers at the LHC. © 2022, The Author(s). (Less)
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type
Contribution to journal
publication status
published
subject
in
European Physical Journal C
volume
82
issue
12
article number
1132
publisher
Springer
external identifiers
  • scopus:85144333556
ISSN
1434-6044
DOI
10.1140/epjc/s10052-022-11048-8
language
English
LU publication?
yes
id
e15e87f9-44d5-4ce8-82aa-f1b485d42e5b
date added to LUP
2023-01-16 09:27:03
date last changed
2024-04-17 21:02:02
@article{e15e87f9-44d5-4ce8-82aa-f1b485d42e5b,
  abstract     = {{In this work, we consider the case of a strongly coupled dark/hidden sector, which extends the Standard Model (SM) by adding an additional non-Abelian gauge group. These extensions generally contain matter fields, much like the SM quarks, and gauge fields similar to the SM gluons. We focus on the exploration of such sectors where the dark particles are produced at the LHC through a portal and undergo rapid hadronization within the dark sector before decaying back, at least in part and potentially with sizeable lifetimes, to SM particles, giving a range of possibly spectacular signatures such as emerging or semi-visible jets. Other, non-QCD-like scenarios leading to soft unclustered energy patterns or glueballs are also discussed. After a review of the theory, existing benchmarks and constraints, this work addresses how to build consistent benchmarks from the underlying physical parameters and present new developments for the pythia Hidden Valley module, along with jet substructure studies. Finally, a series of improved search strategies is presented in order to pave the way for a better exploration of the dark showers at the LHC. © 2022, The Author(s).}},
  author       = {{Albouy, G. and Doglioni, C. and Hemme, N. and Sjöstrand, T. and Wang, L.}},
  issn         = {{1434-6044}},
  language     = {{eng}},
  number       = {{12}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal C}},
  title        = {{Theory, phenomenology, and experimental avenues for dark showers: a Snowmass 2021 report}},
  url          = {{http://dx.doi.org/10.1140/epjc/s10052-022-11048-8}},
  doi          = {{10.1140/epjc/s10052-022-11048-8}},
  volume       = {{82}},
  year         = {{2022}},
}