Five-body calculation of s-wave n-4He scattering at next-to-leading order pionless effective field theory

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00575102" target="_blank" >RIV/61389005:_____/23:00575102 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.physletb.2023.138078" target="_blank" >https://doi.org/10.1016/j.physletb.2023.138078</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2023.138078" target="_blank" >10.1016/j.physletb.2023.138078</a>

Result language
angličtina
Original language name
Five-body calculation of s-wave n-4He scattering at next-to-leading order pionless effective field theory
Original language description
We present the first five-body calculations of s-wave n-He-4 scattering within leading order and next-toleading order (NLO) pionless effective field theory (pi/EFT). Using an harmonic oscillator trap technique and pi/EFT fitted to just six well-established experimental parameters, we predict the s-wave n-He-4 phase shifts, scattering length a(n4He)(1/2)( NLO) = 2.47(4 num.)(17 theor.) fm, and effective range r(n4He)(1/2)( NLO) = 1.384(3 num.)(211 theor.) fmin agreement with experiment. The apparent cutoff independence of our results is used to estimate the theoretical errors coming as an integral part of our final results.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
<a href="/en/project/GA22-14497S" target="_blank" >GA22-14497S: Advancing the frontiers of first-principle modeling of atomic nuclei</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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