H-3(Lambda) and (3)((Lambda)over-bar)(H)over-bar lifetime measurement in Pb-Pb collisions at √sNN=5.02 TeV via two-body decay

dc.contributor.author	Acharya, Shreyasi	pt_BR
dc.contributor.author	Gay Ducati, Maria Beatriz	pt_BR
dc.contributor.author	Pereira, Luis Gustavo	pt_BR
dc.contributor.author	Pezzi, Rafael Peretti	pt_BR
dc.contributor.author	ALICE Collaboration	pt_BR
dc.date.accessioned	2019-11-13T03:51:47Z	pt_BR
dc.date.issued	2019	pt_BR
dc.identifier.issn	0370-2693	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/201676	pt_BR
dc.description.abstract	An improved value for the lifetime of the (anti-)hypertriton has been obtained using the data sample of Pb–Pb collisions at √sNN =5.02 TeV collected by the ALICE experiment at the LHC. The (anti-)hypertriton has been reconstructed via its charged two-body mesonic decay channel and the lifetime has been determined from an exponential fit to the dN/d(ct) spectrum. The measured value, τ=242+34−38 +-17 (syst.) ps, is compatible with representative theoretical predictions, thus contributing to the solution of the longstanding hypertriton lifetime puzzle.	en
dc.format.mimetype	application/pdf	pt_BR
dc.language.iso	eng	pt_BR
dc.relation.ispartof	Physics letters. B. Amsterdam. Vol. 797 (Oct. 2019), 134905, p. 1-12	pt_BR
dc.rights	Open Access	en
dc.subject	Aceleradores de partículas	pt_BR
dc.subject	Colisao de ions pesados	pt_BR
dc.title	H-3(Lambda) and (3)((Lambda)over-bar)(H)over-bar lifetime measurement in Pb-Pb collisions at √sNN=5.02 TeV via two-body decay	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	001105302	pt_BR
dc.type.origin	Estrangeiro	pt_BR

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