Decay of the key 92-keV resonance in the 25Mg(p,γ) reaction to the ground and isomeric states of the cosmic γ-ray emitter 26Al

Kankainen, A.; Woods, P.J.; Doherty, D.T.; Albers, H.M.; Albers, M.; Ayangeakaa, A.D.; Carpenter, M.P.; Chiara, C.J.; Harker, J.L.; Janssens, R.V.F.; Lederer-Woods, C.; Seweryniak, D.; Strieder, F.; Zhu, S.

doi:10.1016/j.physletb.2020.136033

dc.contributor.author	Kankainen, A.
dc.contributor.author	Woods, P.J.
dc.contributor.author	Doherty, D.T.
dc.contributor.author	Albers, H.M.
dc.contributor.author	Albers, M.
dc.contributor.author	Ayangeakaa, A.D.
dc.contributor.author	Carpenter, M.P.
dc.contributor.author	Chiara, C.J.
dc.contributor.author	Harker, J.L.
dc.contributor.author	Janssens, R.V.F.
dc.contributor.author	Lederer-Woods, C.
dc.contributor.author	Seweryniak, D.
dc.contributor.author	Strieder, F.
dc.contributor.author	Zhu, S.
dc.date.accessioned	2020-12-29T10:50:35Z
dc.date.available	2020-12-29T10:50:35Z
dc.date.issued	2021
dc.identifier.citation	Kankainen, A., Woods, P.J., Doherty, D.T., Albers, H.M., Albers, M., Ayangeakaa, A.D., Carpenter, M.P., Chiara, C.J., Harker, J.L., Janssens, R.V.F., Lederer-Woods, C., Seweryniak, D., Strieder, F., & Zhu, S. (2021). Decay of the key 92-keV resonance in the 25Mg(p,γ) reaction to the ground and isomeric states of the cosmic γ-ray emitter 26Al. <i>Physics Letters B</i>, <i>813</i>, Article 136033. <a href="https://doi.org/10.1016/j.physletb.2020.136033" target="_blank">https://doi.org/10.1016/j.physletb.2020.136033</a>
dc.identifier.other	CONVID_47529576
dc.identifier.uri	https://jyx.jyu.fi/handle/123456789/73504
dc.description.abstract	The 92-keV resonance in the 25Mg(p,γ)26Al reaction plays a key role in the production of 26Al at astrophysical burning temperatures of ≈100 MK in the Mg-Al cycle. However, the state can decay to feed either the ground, 26gAl, or isomeric state, 26mAl. It is the ground state that is critical as the source of cosmic γ rays. It is therefore important to precisely determine the ground-state branching fraction f0 of this resonance. Here we report on the identification of four γ-ray transitions from the 92-keV resonance, and determine the spin of the state and its ground-state branching fraction f0=0.52(2)stat(6)syst. The f0 value is the most precise reported to date, and at the lower end of the range of previously adopted values, implying a lower production rate of 26gAl and its cosmic 1809-keV γ rays.	en
dc.format.mimetype	application/pdf
dc.language	eng
dc.language.iso	eng
dc.publisher	Elsevier BV
dc.relation.ispartofseries	Physics Letters B
dc.rights	CC BY 4.0
dc.subject.other	nuclear astrophysics
dc.subject.other	26Al
dc.subject.other	γ spectroscopy
dc.subject.other	cosmic γ rays
dc.title	Decay of the key 92-keV resonance in the 25Mg(p,γ) reaction to the ground and isomeric states of the cosmic γ-ray emitter 26Al
dc.type	article
dc.identifier.urn	URN:NBN:fi:jyu-202012297432
dc.contributor.laitos	Fysiikan laitos	fi
dc.contributor.laitos	Department of Physics	en
dc.type.uri	http://purl.org/eprint/type/JournalArticle
dc.type.coar	http://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatus	peerReviewed
dc.relation.issn	0370-2693
dc.relation.volume	813
dc.type.version	publishedVersion
dc.rights.copyright	© 2020 The Authors. Published by Elsevier B.V.
dc.rights.accesslevel	openAccess	fi
dc.relation.grantnumber	771036
dc.relation.grantnumber	771036
dc.relation.grantnumber	275389
dc.relation.projectid	info:eu-repo/grantAgreement/EC/H2020/771036/EU//MAIDEN
dc.subject.yso	ydinfysiikka
dc.subject.yso	astrofysiikka
dc.subject.yso	kosminen säteily
dc.format.content	fulltext
jyx.subject.uri	http://www.yso.fi/onto/yso/p14759
jyx.subject.uri	http://www.yso.fi/onto/yso/p20188
jyx.subject.uri	http://www.yso.fi/onto/yso/p14258
dc.rights.url	https://creativecommons.org/licenses/by/4.0/
dc.relation.doi	10.1016/j.physletb.2020.136033
dc.relation.funder	European Commission	en
dc.relation.funder	Research Council of Finland	en
dc.relation.funder	Euroopan komissio	fi
dc.relation.funder	Suomen Akatemia	fi
jyx.fundingprogram	ERC Consolidator Grant	en
jyx.fundingprogram	Academy Research Fellow, AoF	en
jyx.fundingprogram	ERC Consolidator Grant	fi
jyx.fundingprogram	Akatemiatutkija, SA	fi
jyx.fundinginformation	This work was supported by The U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-O6CH11357. This research used resources of ANL's ATLAS facility which is a DOE office of Science User Facility. The support from STFC under grant ST/J00006X/1 is gratefully acknowledged. A.K. acknowledges the funding from the European Union's Horizon 2020 research and innovation program under grant agreement No. 771036 (ERC CoG MAIDEN) and Academy of Finland grant No. 275389. This work was supported by The U.S. Department of Energy (DOE), Office of Nuclear Physics, under Grants No. DE-FG02-97ER41033 (TUNL), DE-FG02-97ER41041 (UNC) and DE-FG02-94ER40834 (UMD). C.L.W. acknowledges support from the Austrian Science Fund (FWF): J3503
dc.type.okm	A1

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