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Effective field theory for proton halo nuclei

Emil Ryberg (Institutionen för fundamental fysik) ; Christian Forssén (Institutionen för fundamental fysik) ; H. W. Hammer ; Lucas Platter (Institutionen för fundamental fysik)
Physical Review C. Nuclear Physics (0556-2813). Vol. 89 (2014), 1,
[Artikel, refereegranskad vetenskaplig]

We use halo effective field theory to analyze the universal features of proton halo nuclei bound due to a large S-wave scattering length. Our work provides a fully field-theoretical treatment of bound halo nuclei in the presence of a repulsive Coulomb interaction. With a Lagrangian built from effective core and valence-proton fields, we derive a leading-order expression for the charge form factor. Within the same framework we also calculate the radiative proton capture cross section. We present general results at leading order that can be applied to any one-proton halo system bound in a relative S wave. We illustrate the method by studying the excited 1/2(+) state of fluorine 17, for which we give results for the charge radius and the astrophysical S factor.

Denna post skapades 2014-04-10. Senast ändrad 2016-03-22.
CPL Pubid: 196555


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Institutionen för fundamental fysik (2005-2015)



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Denna publikation ingår i:

Cluster Effective Field Theory



Denna publikation är ett resultat av följande projekt:

Ab initio approach to nuclear structure and reactions (++) (ANSR) (EC/FP7/240603)