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LHC searches for dark sector showers

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3];  [2]
  1. Univ. of Oregon, Eugene, OR (United States). Inst. of Theoretical Science; Univ. of Oregon, Eugene, OR (United States)
  2. Princeton Univ., NJ (United States). Dept. of Physics
  3. Univ. of California, Berkeley, CA (United States). Dept. of Physics
This paper proposes a new search program for dark sector parton showers at the Large Hadron Collider (LHC). These signatures arise in theories characterized by strong dynamics in a hidden sector, such as Hidden Valley models. A dark parton shower can be composed of both invisible dark matter particles as well as dark sector states that decay to Standard Model particles via a portal. The focus here is on the specific case of ‘semi-visible jets,’ jet-like collider objects where the visible states in the shower are Standard Model hadrons. We present a Simplified Model-like parametrization for the LHC observables and propose targeted search strategies for regions of parameter space that are not covered by existing analyses. Following the ‘mono-X’ literature, the portal is modeled using either an effective field theoretic contact operator approach or with one of two ultraviolet completions; sensitivity projections are provided for all three cases. We additionally highlight that the LHC has a unique advantage over direct detection experiments in the search for this class of dark matter theories.
Research Organization:
Princeton Univ., NJ (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231; SC0007968
OSTI ID:
1505199
Alternate ID(s):
OSTI ID: 22710171
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 11 Vol. 2017; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (13)

Strongly interacting dark sectors in the early Universe and at the LHC through a simplified portal journal January 2020
Heavy Higgs of the Twin Higgs models journal February 2018
Dark mesons at the LHC journal July 2019
Collider phenomenology of Hidden Valley mediators of spin 0 or 1/2 with semivisible jets journal August 2018
A flavoured dark sector journal August 2018
Tagging a jet from a dark sector with jet substructures at colliders journal December 2019
Cosmology and accelerator tests of strongly interacting dark matter journal March 2018
Searching for confining hidden valleys at LHCb, ATLAS, and CMS journal May 2018
Strongly interacting dark sectors in the early Universe and at the LHC through a simplified portal text January 2020
Collider phenomenology of Hidden Valley mediators of spin 0 or 1/2 with semivisible jets text January 2017
Cosmology and Accelerator Tests of Strongly Interacting Dark Matter text January 2018
Dark Mesons at the LHC text January 2018
Strongly interacting dark sectors in the early Universe and at the LHC through a simplified portal text January 2019

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