Authors:	Capel, Pierre Phillips, Daniel R. Andis, Andrew Bagnarol, Mirko Behzadmoghaddam, Behnaz Bonaiti, Francesca Bubna, Rishabh Capitani, Ylenia Duerinck, Pierre-Yves Durant, Victoria Döpper, Niklas El Boustani, Aya Farrell, Roland Geiger, Maurus Gennari, Michael Goldberg, Nitzan Herko, Jakub Kirchner, Tanja Kubushishi, Live-Palm Li, Zhen Li Muli, Simone S. Long, Alexander Martin, Brady Mohseni, Kamyar Moumene, Imane Paracone, Nicola Parnes, Elad Romeo, Beatriz Springer, Victor Svensson, Isak Thim, Oliver Yapa, Nuwan
Title:	Effective field theory analysis of the Coulomb breakup of the one-neutron halo nucleus 19C
Online publication date:	15-Dec-2023
Year of first publication:	2023
Language:	english
Abstract:	We analyse the Coulomb breakup of C measured at 67A MeV at RIKEN. We use the Coulomb-Corrected Eikonal (CCE) approximation to model the reaction and describe the one-neutron halo nucleus C within Halo Effective Field Theory (Halo EFT). At leading order we obtain a fair reproduction of the measured cross section as a function of energy and angle. The description is insensitive to the choice of optical potential, as long as it accurately represents the size of C. It is also insensitive to the interior of the C wave function. Comparison between theory and experiment thus enables us to infer asymptotic properties of the ground state of C: these data put constraints on the one-neutron separation energy of this nucleus and, for a given binding energy, can be used to extract an asymptotic normalisation coefficient (ANC). These results are confirmed by CCE calculations employing next-to-leading order Halo EFT descriptions of C: at this order the results for the Coulomb breakup cross section are completely insensitive to the choice of the regulator. Accordingly, this reaction can be used to constrain the one-neutron separation energy and ANC of C.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-9811
Version:	Published version
Publication type:	Zeitschriftenaufsatz
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	The European physical journal : A, Hadrons and nuclei 59
Pages or article number:	273
Publisher:	Macmillan Publishers Limited, part of Springer Nature
Publisher place:	Berlin u.a.
Issue date:	2023
ISSN:	1434-601X
Publisher DOI:	10.1140/epja/s10050-023-01181-7
Appears in collections:	DFG-491381577-H