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Effective-field-theory predictions of the muon-deuteron capture rate

Acharya, B. (author)
Johannes Gutenberg-Universität Mainz,Johannes Gutenberg University Mainz,University of Tennessee
Ekström, Andreas, 1980 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Platter, Lucas, 1976 (author)
University of Tennessee,Oak Ridge National Laboratory
 (creator_code:org_t)
2018
2018
English.
In: Physical Review C. - 2469-9985 .- 2469-9993. ; 98:6
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We quantify the theoretical uncertainties of chiral effective-field-theory predictions of the muon-deuteron capture rate. Theoretical error estimates of this low-energy process are important for a reliable interpretation of forthcoming experimental results by the MuSun Collaboration. Specifically, we estimate the three dominant sources of uncertainties that impact theoretical calculations of this rate: those resulting from uncertainties in the pool of fit data used to constrain the coupling constants in the nuclear interaction, those due to the truncation of the effective field theory, and those due to uncertainties in the axial radius of the nucleon. For the capture rate into the S01 channel, we find an uncertainty of approximately 4.6s-1 due to the truncation in the effective field theory and an uncertainty of 3.9s-1 due to the uncertainty in the axial radius of the nucleon, both of which are similar in size to the targeted experimental precision of a few percent.

Subject headings

NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)
NATURVETENSKAP  -- Fysik -- Annan fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Other Physics Topics (hsv//eng)
NATURVETENSKAP  -- Kemi -- Teoretisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)

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