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High Energy Physics - Phenomenology

arXiv:1503.04811 (hep-ph)
[Submitted on 16 Mar 2015 (v1), last revised 20 May 2015 (this version, v2)]

Title:Chiral power counting of one- and two-body currents in direct detection of dark matter

Authors:Martin Hoferichter, Philipp Klos, Achim Schwenk
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Abstract:We present a common chiral power-counting scheme for vector, axial-vector, scalar, and pseudoscalar WIMP-nucleon interactions, and derive all one- and two-body currents up to third order in the chiral expansion. Matching our amplitudes to non-relativistic effective field theory, we find that chiral symmetry predicts a hierarchy amongst the non-relativistic operators. Moreover, we identify interaction channels where two-body currents that so far have not been accounted for become relevant.
Comments: 8 pages, 1 table; journal version
Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); Nuclear Theory (nucl-th)
Cite as: arXiv:1503.04811 [hep-ph]
  (or arXiv:1503.04811v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1503.04811

Submission history

From: Martin Hoferichter [view email]
[v1] Mon, 16 Mar 2015 20:00:23 UTC (22 KB)
[v2] Wed, 20 May 2015 20:21:46 UTC (23 KB)
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