Indications for a bound tetraneutron

Using the reaction 7Li(7Li,10C) we tried to populate states in the tetraneutron. A peak in the energy spectrum of identified 10C, which we cannot attribute to a reaction with any other of the target components, corresponds to an excitation of the 10C+4n system of 2.93±0.16 MeV. Under different kinem...

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Autores principales:	Thomas Faestermann, Andreas Bergmaier, Roman Gernhäuser, Dominik Koll, Mahmoud Mahgoub
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Multi-nucleon transfer Neutron-rich nuclei Neutron matter Physics QC1-999
Acceso en línea:	https://doaj.org/article/cf0137b4d0074781972e515a19c96366
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spelling	oai:doaj.org-article:cf0137b4d0074781972e515a19c963662021-12-02T04:59:03ZIndications for a bound tetraneutron0370-269310.1016/j.physletb.2021.136799https://doaj.org/article/cf0137b4d0074781972e515a19c963662022-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0370269321007395https://doaj.org/toc/0370-2693Using the reaction 7Li(7Li,10C) we tried to populate states in the tetraneutron. A peak in the energy spectrum of identified 10C, which we cannot attribute to a reaction with any other of the target components, corresponds to an excitation of the 10C+4n system of 2.93±0.16 MeV. Under different kinematic conditions an equivalent peak was observed. For a binding energy of the tetraneutron of −2.93 MeV a much larger width than the observed upper limit of Γ<0.24 MeV (mainly due to experimental spread) is expected. Therefore, we favor the interpretation that this peak corresponds to 10C in the first excited state at 3.354 MeV and a tetraneutron with a binding energy of +0.42±0.16 MeV.Thomas FaestermannAndreas BergmaierRoman GernhäuserDominik KollMahmoud MahgoubElsevierarticleMulti-nucleon transferNeutron-rich nucleiNeutron matterPhysicsQC1-999ENPhysics Letters B, Vol 824, Iss , Pp 136799- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Multi-nucleon transfer Neutron-rich nuclei Neutron matter Physics QC1-999
spellingShingle	Multi-nucleon transfer Neutron-rich nuclei Neutron matter Physics QC1-999 Thomas Faestermann Andreas Bergmaier Roman Gernhäuser Dominik Koll Mahmoud Mahgoub Indications for a bound tetraneutron
description	Using the reaction 7Li(7Li,10C) we tried to populate states in the tetraneutron. A peak in the energy spectrum of identified 10C, which we cannot attribute to a reaction with any other of the target components, corresponds to an excitation of the 10C+4n system of 2.93±0.16 MeV. Under different kinematic conditions an equivalent peak was observed. For a binding energy of the tetraneutron of −2.93 MeV a much larger width than the observed upper limit of Γ<0.24 MeV (mainly due to experimental spread) is expected. Therefore, we favor the interpretation that this peak corresponds to 10C in the first excited state at 3.354 MeV and a tetraneutron with a binding energy of +0.42±0.16 MeV.
format	article
author	Thomas Faestermann Andreas Bergmaier Roman Gernhäuser Dominik Koll Mahmoud Mahgoub
author_facet	Thomas Faestermann Andreas Bergmaier Roman Gernhäuser Dominik Koll Mahmoud Mahgoub
author_sort	Thomas Faestermann
title	Indications for a bound tetraneutron
title_short	Indications for a bound tetraneutron
title_full	Indications for a bound tetraneutron
title_fullStr	Indications for a bound tetraneutron
title_full_unstemmed	Indications for a bound tetraneutron
title_sort	indications for a bound tetraneutron
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/cf0137b4d0074781972e515a19c96366
work_keys_str_mv	AT thomasfaestermann indicationsforaboundtetraneutron AT andreasbergmaier indicationsforaboundtetraneutron AT romangernhauser indicationsforaboundtetraneutron AT dominikkoll indicationsforaboundtetraneutron AT mahmoudmahgoub indicationsforaboundtetraneutron
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Indications for a bound tetraneutron

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