This title appears in the Scientific Report :
2013
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevD.87.085018 in citations.
Please use the identifier: http://hdl.handle.net/2128/5450 in citations.
Varying the light quark mass: Impact on the nuclear force and big bang nucleosynthesis
Varying the light quark mass: Impact on the nuclear force and big bang nucleosynthesis
The quark mass dependences of light element binding energies and nuclear scattering lengths are derived using chiral perturbation theory in combination with non-perturbative methods. In particular, we present new, improved values for the quark mass dependence of meson resonances that enter the nucle...
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Personal Name(s): | Berengut, J. C. (Corresponding author) |
---|---|
Epelbaum, E. / Flambaum, V. V. / Hanhart, C. / Meißner, Ulf-G. / Nebreda, J. / Peláez, J. R. | |
Contributing Institute: |
Theorie der Starken Wechselwirkung; IAS-4 Theorie der starken Wechselwirkung; IKP-3 |
Published in: | Physical Review D Physical review / D, 87 87 (2013 2013) 8 8, S. 085018 085018 |
Imprint: |
[S.l.]
Soc.
2013
2013-04-10 2013-04-01 |
DOI: |
10.1103/PhysRevD.87.085018 |
Document Type: |
Journal Article |
Research Program: |
Hadron Structure and Dynamics (HSD) |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/5450 in citations.
The quark mass dependences of light element binding energies and nuclear scattering lengths are derived using chiral perturbation theory in combination with non-perturbative methods. In particular, we present new, improved values for the quark mass dependence of meson resonances that enter the nuclear force. A detailed analysis of the theoretical uncertainties arising in this determination is presented. As an application we derive from a comparison of observed and calculated primordial deuterium and helium abundances a stringent limit on the variation of the light quark mass, $\delta m_q/m_q = 0.02 \pm 0.04$. Inclusion of the neutron lifetime modification under the assumption of a variation of the Higgs vacuum expectation value that translates into changing quark, electron, and weak gauge boson masses, leads to a stronger limit, $|\delta m_q/m_q| < 0.009$. |