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H[lambda]3 and H‾[lambda]‾3 lifetime measurement in Pb-Pb collisions at √sNN=5.02 TeV via two-body decay

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 bee...

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Main Authors: Acharya, Shreyasi (Author) , Angelov, Venelin (Author) , Arslandok, Mesut (Author) , Danisch, Meike (Author) , Feuillard, Victor (Author) , Glässel, Peter (Author) , Kim, Jiyoung (Author) , Kim, Minjung (Author) , Klewin, Sebastian (Author) , Köhler, Markus Konrad (Author) , Leardini, Lucia (Author) , Ohlson, Alice (Author) , Pachmayer, Yvonne C. (Author) , Reygers, Klaus (Author) , Schicker, Rainer (Author) , Schmah, Alexander (Author) , Schmidt, Marten Ole (Author) , Stachel, Johanna (Author) , Weiser, Dennis (Author) , Windelband, Bernd (Author) , Yüncü, Alperen (Author)
Corporate Author: ALICE (Author)
Format: Article (Journal)
Language:English
Published: 3 September 2019
In: Physics letters
Year: 2019, Volume: 797
ISSN:1873-2445
DOI:10.1016/j.physletb.2019.134905
Online Access:Verlag, Volltext: https://doi.org/10.1016/j.physletb.2019.134905
Verlag: http://www.sciencedirect.com/science/article/pii/S0370269319306276
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Author Notes:ALICE Collaboration*
Description
Summary: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=242−38+34 (stat.) ± 17 (syst.) ps, is compatible with representative theoretical predictions, thus contributing to the solution of the longstanding hypertriton lifetime puzzle.
Item Description:Im Titel ist [lambda] als griechischer Buchstabe dargestellt
Im Titel steht der Ausdruck "sNN" unter dem Wurzelzeichen
Im Titel ist [lambda] tiefgestellt
Im Titel ist die Zahl "3" hochgestellt
Im Titel ist der Buchstabe "s" hochgestellt
Der Name "Yuncu" [Yüncü] ist in der Verfasserangabe falsch geschrieben
*ALICE Collaboration: S. Archaya, V. Anguelov, M. Arslandok, M.C. Danisch, V.J.G. Feuillard, P. Glässel, J. Kim, M. Kim, S. Klewin, M.K. Köhler, L. Leardini, A. Ohlson, Y. Pachmayer, K. Reygers, R. Schicker, A. Schmah, M.O. Schmidt, J. Stachel, D.F. Weiser, B. Windelband, A. Yuncu [und 1021 weitere Personen]
Gesehen am 25.10.2019
Physical Description:Online Resource
ISSN:1873-2445
DOI:10.1016/j.physletb.2019.134905

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