Measurement of the lifetime and Λ separation energy of 3 ΛH

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	ALICE Collaboration	pt_BR
dc.date.accessioned	2024-01-12T03:27:52Z	pt_BR
dc.date.issued	2023	pt_BR
dc.identifier.issn	0031-9007	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/270876	pt_BR
dc.description.abstract	The most precise measurements to date of the 3 Λ H lifetime τ and Λ separation energy B Λ are obtained using the data sample of Pb-Pb collisions at √ s NN = 5.02 TeV collected by ALICE at the LHC. The 3 Λ H is reconstructed via its charged two-body mesonic decay channel ( 3 Λ H → 3 He + π − and the charge-conjugate process). The measured values τ = [ 253 ± 11 ( stat ) ± 6 ( syst ) ] ps and B Λ = [ 102 ± 63 ( stat ) ± 67 ( syst ) ] keV are compatible with predictions from effective field theories and confirm that the 3 Λ H structure is consistent with a weakly bound system.	en
dc.format.mimetype	application/pdf	pt_BR
dc.language.iso	eng	pt_BR
dc.relation.ispartof	Physical review letters. Melville. Vol. 131, no. 10 (Sept. 2023), 102302, 13 p.	pt_BR
dc.rights	Open Access	en
dc.subject	Colisao de ions pesados	pt_BR
dc.subject	Mesons	pt_BR
dc.subject	Hiperons	pt_BR
dc.title	Measurement of the lifetime and Λ separation energy of 3 ΛH	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	001193598	pt_BR
dc.type.origin	Estrangeiro	pt_BR

Este item está licenciado na Creative Commons License