This title appears in the Scientific Report :
2015
Please use the identifier:
http://dx.doi.org/10.1038/nature16067 in citations.
Please use the identifier: http://hdl.handle.net/2128/9791 in citations.
Ab initio alpha–alpha scattering
Ab initio alpha–alpha scattering
Processes involving alpha particles and alpha-like nuclei comprise a major part of stellar nucleosynthesis and hypothesized mechanisms for thermonuclear supernovae. In an effort towards understanding alpha processes from first principles, we describe in this letter the first ab initio calculation of...
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Personal Name(s): | Elhatisari, Serdar |
---|---|
Lee, Dean (Corresponding author) / Rupak, Gautam / Epelbaum, Evgeny / Krebs, Hermann / Lähde, Timo / Luu, Tom / Meissner, Ulf-G. | |
Contributing Institute: |
Theorie der Starken Wechselwirkung; IAS-4 John von Neumann - Institut für Computing; NIC Theorie der starken Wechselwirkung; IKP-3 |
Published in: |
Nature |
Imprint: |
London [u.a.]
Nature Publ. Group78092
2015
|
PubMed ID: |
26632590 |
DOI: |
10.1038/nature16067 |
Document Type: |
Journal Article |
Research Program: |
Nuclear Lattice Simulations Study of Strongly Interacting Matter TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik Nuclear Physics from Quantum Chromodynamics Computational Science and Mathematical Methods |
Subject (ZB): | |
Link: |
Restricted OpenAccess Restricted OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/9791 in citations.
Processes involving alpha particles and alpha-like nuclei comprise a major part of stellar nucleosynthesis and hypothesized mechanisms for thermonuclear supernovae. In an effort towards understanding alpha processes from first principles, we describe in this letter the first ab initio calculation of alpha-alpha scattering. We use lattice effective field theory to describe the low-energy interactions of nucleons and apply a technique called the adiabatic projection method to reduce the eight-body system to an effective two-cluster system. We find good agreement between lattice results and experimental phase shifts for S-wave and D-wave scattering. The computational scaling with particle number suggests that alpha processes involving heavier nuclei are also within reach in the near future. |