A study of ccc¯c¯ tetraquark decays in 4 muons and in D(⁎)D¯(⁎) at LHC

Becchi, C.; Ferretti, Jacopo; Giachino, A.; Maiani, L.; Santopinto, E.

doi:10.1016/j.physletb.2020.135952

dc.contributor.author	Becchi, C.
dc.contributor.author	Ferretti, Jacopo
dc.contributor.author	Giachino, A.
dc.contributor.author	Maiani, L.
dc.contributor.author	Santopinto, E.
dc.date.accessioned	2020-11-19T12:24:19Z
dc.date.available	2020-11-19T12:24:19Z
dc.date.issued	2020
dc.identifier.citation	Becchi, C., Ferretti, J., Giachino, A., Maiani, L., & Santopinto, E. (2020). A study of ccc¯c¯ tetraquark decays in 4 muons and in D(⁎)D¯(⁎) at LHC. <i>Physics Letters B</i>, <i>811</i>, Article 135952. <a href="https://doi.org/10.1016/j.physletb.2020.135952" target="_blank">https://doi.org/10.1016/j.physletb.2020.135952</a>
dc.identifier.other	CONVID_47045041
dc.identifier.uri	https://jyx.jyu.fi/handle/123456789/72694
dc.description.abstract	We perform a quantitative analysis of the decays of ccc¯c¯ tetraquarks with JPC=0++,2++ into 4 muons and into hidden- and open-charm mesons and estimate, for the first time, the fully charmed tetraquark decay width. The calculated cross section upper limit is ∼39(780) fb for the 4 muons channel, and ∼42(616) pb for the ⁎⁎D(⁎)D¯(⁎)→eμ channel, in the 0++(2++) case. Decay widths depend upon the additional parameter ξ=\|ΨT(0)\|2/\|ΨJ/ψ(0)\|2, which can be computed with a considerable error. We find Γ(0++)∼Γ(2++)=97±30. On the basis of our results and with the present sensitivity, LHCb should detect both 0++ and 2++ fully-charmed tetraquarks.	en
dc.format.mimetype	application/pdf
dc.language	eng
dc.language.iso	eng
dc.publisher	Elsevier
dc.relation.ispartofseries	Physics Letters B
dc.rights	CC BY 4.0
dc.subject.other	quantitative analysis
dc.title	A study of ccc¯c¯ tetraquark decays in 4 muons and in D(⁎)D¯(⁎) at LHC
dc.type	article
dc.identifier.urn	URN:NBN:fi:jyu-202011196698
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	811
dc.type.version	publishedVersion
dc.rights.copyright	© 2020 The Author(s). Published by Elsevier B.V.
dc.rights.accesslevel	openAccess	fi
dc.subject.yso	hiukkasfysiikka
dc.format.content	fulltext
jyx.subject.uri	http://www.yso.fi/onto/yso/p15576
dc.rights.url	https://creativecommons.org/licenses/by/4.0/
dc.relation.doi	10.1016/j.physletb.2020.135952
dc.type.okm	A1

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