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Title: Probing energetic light dark matter with multi-particle tracks signatures at DUNE

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3]; ORCiD logo [4];  [5];  [6]
  1. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  2. Texas A & M Univ. at Galveston, TX (United States); Univ. of Arizona, Tucson, AZ (United States)
  3. Univ. of Perugia, Perugia (Italy)
  4. Chungnam National Univ., Daejeon (Korea, Republic of)
  5. Jeonbuk National University, Jeonju (Korea, Republic of)
  6. Univ. of Cambridge (United Kingdom)

The search for relativistic scattering signals of cosmogenic light dark matter at terrestrial detectors has received increasing attention as an alternative approach to probe dark-sector physics. Large-volume neutrino experiments are well motivated for searches of dark matter that interacts very weakly with Standard Model particles and/or that exhibits a small incoming flux. We perform a dedicated signal sensitivity study for a detector similar to the one proposed by the DUNE Collaboration for cosmogenic dark-matter signals resulting from a non-minimal multi-particle dark-sector scenario. The liquid argon time projection chamber technology adopted for the DUNE detectors is particularly suited for searching for complicated signatures owing to good measurement resolution and particle identification, as well as dE/dx measurements to recognize merged tracks. Taking inelastic boosted dark matter as our benchmark scenario that allows for multiple visible particles in the final state, we demonstrate that the DUNE far detectors have a great potential for probing scattering signals induced by relativistic light dark matter. Detector effects and backgrounds have been estimated and taken into account. Model-dependent and model-independent expected sensitivity limits for a DUNE-like detector are presented.

Research Organization:
Univ. of Arizona, Tucson, AZ (United States); Texas A & M Univ., College Station, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Research Foundation of Korea (NRF); National Science Foundation (NSF)
Grant/Contract Number:
SC0009913; SC0010813; FG02-13ER41976; NRF-2019R1C1C1005073; NRF-2018R1A4A1025334; NRF-2020R1I1A3072747; PHY-1607611
OSTI ID:
1851187
Journal Information:
Journal of High Energy Physics (Online), Vol. 2020, Issue 11; ISSN 1029-8479
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

New Physics of Strong Interaction and Dark Universe journal October 2020