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Title: Dark Forces At The Tevatron

A simple explanation of the W + dijet excess recently reported by the CDF collaboration involves the introduction of a new gauge boson with sizable couplings to quarks, but with no or highly suppressed couplings to leptons. Anomaly-free theories which include such a leptophobic gauge boson must also include additional particle content, which may include a stable and otherwise viable candidate for dark matter. Based on the couplings and mass of the Z` required to generate the CDF excess, we predict such a dark matter candidate to possess an elastic scattering cross section with nucleons on the order of σ ~ 10-40 cm2, providing a natural explanation for the signals reported by the CoGeNT and DAMA/LIBRA collaborations. In this light, CDF may be observing the gauge boson responsible for the force which mediates the interactions between the dark and visible matter of our universe.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States). Fermilab Center for Particle Astrophysics
  2. Univ. of Wisconsin, Madison, WI (United States). Phenomenology Inst., Dept. of Physics
  3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States). Fermilab Center for Particle Astrophysics; Univ. of Chicago, IL (United States). Dept. of Astronomy and Astrophysics
  4. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States). Particle Theory Group
Publication Date:
OSTI Identifier:
1012691
Report Number(s):
FERMILAB-PUB--11-180-A-T
Journal ID: ISSN 0370-2693; arXiv eprint number arXiv:1104.3145; TRN: US1102362
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 702; Journal Issue: 4; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS, 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BOSONS; CROSS SECTIONS; ELASTIC SCATTERING; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; LEPTONS; NONLUMINOUS MATTER; NUCLEONS; QUARKS; UNIVERSE Astrophysics, Phenomenology-HEP