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Effective-field-the...
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Acharya, B.Johannes Gutenberg-Universität Mainz,Johannes Gutenberg University Mainz,University of Tennessee
(author)
Effective-field-theory predictions of the muon-deuteron capture rate
- Article/chapterEnglish2018
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LIBRIS-ID:oai:research.chalmers.se:be18ade5-9dee-456c-a84b-e50eaa50469a
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https://research.chalmers.se/publication/508266URI
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https://doi.org/10.1103/PhysRevC.98.065506DOI
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Language:English
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Summary in:English
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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.
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Ekström, Andreas,1980Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)andeks
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Platter, Lucas,1976University of Tennessee,Oak Ridge National Laboratory(Swepub:cth)platter
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Johannes Gutenberg-Universität MainzUniversity of Tennessee
(creator_code:org_t)
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In:Physical Review C98:62469-99852469-9993
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