prikaz prve stranice dokumenta Measurement of the Λ hyperon lifetime
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Scientific paper - Original scientific paper
Measurement of the Λ hyperon lifetime
Physical Review D, 108 (2023), 3; 032009. https://doi.org/10.1103/PhysRevD.108.032009
(ALICE Collaboration) Acharya, S.; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ...; Karatović, David; ...; Lončar, Petra; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Vicković, Linda; ...; Zurlo, N More authors...

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Acharya, S., Erhardt, F., Gotovac, S., Jerčić, M., Karatović, D., Lončar, P. ... Zurlo, N. (2023). Measurement of the Λ hyperon lifetime. Physical Review D, 108. (3). doi: 10.1103/PhysRevD.108.032009

Acharya, S., et al. "Measurement of the Λ hyperon lifetime." Physical Review D, vol. 108, no. 3, 2023. https://doi.org/10.1103/PhysRevD.108.032009

Acharya, S., Filip Erhardt, Sven Gotovac, Marko Jerčić, David Karatović, Petra Lončar, Mirko Planinić, Nikola Poljak, Linda Vicković and N Zurlo. "Measurement of the Λ hyperon lifetime." Physical Review D 108, no. 3 (2023). https://doi.org/10.1103/PhysRevD.108.032009

Acharya, S., et al. (2023) 'Measurement of the Λ hyperon lifetime', Physical Review D, 108(3). doi: 10.1103/PhysRevD.108.032009

Acharya S, Erhardt F, Gotovac S, Jerčić M, Karatović D, Lončar P, and sur.. Measurement of the Λ hyperon lifetime. Physical Review D [Internet]. 2023 [cited 2024 December 29];108(3). doi: 10.1103/PhysRevD.108.032009

S. Acharya, et al., "Measurement of the Λ hyperon lifetime", Physical Review D, vol. 108, no. 3, 2023. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:121363. [Accessed: 29 December 2024]

Metadata
Title (english)Measurement of the Λ hyperon lifetime
AuthorS. Acharya
Author
...
AuthorFilip Erhardt
Author
...
AuthorSven Gotovac
Author
...
AuthorMarko Jerčić
Author
...
AuthorDavid Karatović
Author
...
AuthorPetra Lončar
Author
...
AuthorMirko Planinić
Author
...
AuthorNikola Poljak
Author
...
AuthorLinda Vicković
Author
...
AuthorN Zurlo
CollaborationALICE Collaboration
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
A new, more precise measurement of the Λ hyperon lifetime is performed using a large data sample of Pb–Pb collisions at √𝑠NN=5.02  TeV with ALICE. The Λ and ¯Λ hyperons are reconstructed at midrapidity using their two-body weak decay channel Λ→p+𝜋− and ¯Λ→¯p+𝜋+. The measured value of the Λ lifetime is 𝜏Λ=[261.07±0.37(stat.)±0.72(syst.)]  ps. The relative difference between the lifetime of Λ and ¯Λ, which represents an important test of 𝐶⁢𝑃⁢𝑇 invariance in the strangeness sector, is also measured. The obtained value (𝜏Λ−𝜏¯Λ)/𝜏Λ=0.0013±0.0028⁢(stat.)±0.0021⁢(syst.) is consistent with zero within the uncertainties. Both measurements of the Λ hyperon lifetime and of the relative difference between 𝜏Λ and 𝜏¯Λ are in agreement with the corresponding world averages of the Particle Data Group and about a factor of three more precise.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review D
Numberingvol. 108, no. 3, 032009
p-ISSN2470-0010
e-ISSN2470-0029
DOIhttps://doi.org/10.1103/PhysRevD.108.032009
URN:NBNurn:nbn:hr:217:121363
Publication2023
Document URLhttps://link.aps.org/doi/10.1103/PhysRevD.108.032009
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2023 CERN, for the ALICE Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Received 7 April 2023; accepted 9 June 2023; published 11 August 2023.
Created on2024-07-14 13:49:15