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Title: Scattering of dark particles with light mediators

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology
 [1];  [2];  [2];  [3]
  1. Univ. of Oregon, Eugene, OR (United States). Inst. of Theoretical Science
  2. Durham Univ. (United Kingdom). Inst. for Particle Physics Phenomenology
  3. Univ. of California, Irvine, CA (United States)

We present a treatment of the high energy scattering of dark Dirac fermions from nuclei, mediated by the exchange of a light vector boson. The dark fermions are produced by proton-nucleus interactions in a fixed target and, after traversing shielding that screens out strongly interacting products, appear similarly to neutrino neutral current scattering in a detector. Using the Fermilab experiment E613 as an example, we place limits on a secluded dark matter scenario. Visible scattering in the detector includes both the familiar regime of large momentum transfer to the nucleus (Q2) described by deeply inelastic scattering, as well as small Q2 kinematics described by the exchanged vector mediator fluctuating into a quark-antiquark pair whose interaction with the nucleus is described by a saturation model. Here, we find that the improved description of the low Q2 scattering leads to important corrections, resulting in more robust constraints in a regime where a description entirely in terms of deeply inelastic scattering cannot be trusted.

Research Organization:
Univ. of Oregon, Eugene, OR (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0011640
OSTI ID:
1601467
Alternate ID(s):
OSTI ID: 1180872
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 90, Issue 11; ISSN 1550-7998
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 44 works
Citation information provided by
Web of Science

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Cited By (5)

Minicharged particles from the Sun: a cutting-edge bound journal March 2016
Probing the Higgs portal at the Fermilab short-baseline neutrino experiments journal December 2019
Z Portal Dark Matter in the Minimal B - L Model journal July 2018
Is it possible to discover a dark matter particle with an accelerator? journal September 2016
Probing the Higgs Portal at the Fermilab Short-Baseline Neutrino Experiments text January 2019

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