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Scientific paper - Letter
Investigating the role of strangeness in baryon–antibaryon annihilation at the LHC
Physics Letters B, 829 (2022); 137060. https://doi.org/10.1016/j.physletb.2022.137060
(ALICE Collaboration) Acharya, S.; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ...; Karatović, David; ...; Lončar, Petra; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Vicković, Linda; ...; Zurlo, N. More authors...

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Institutional repository: Repository of the Faculty of Science

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Acharya, S., Erhardt, F., Gotovac, S., Jerčić, M., Karatović, D., Lončar, P. ... Zurlo, N. (2022). Investigating the role of strangeness in baryon–antibaryon annihilation at the LHC. Physics Letters B, 829.. doi: 10.1016/j.physletb.2022.137060

Acharya, S., et al. "Investigating the role of strangeness in baryon–antibaryon annihilation at the LHC." Physics Letters B, vol. 829, 2022. https://doi.org/10.1016/j.physletb.2022.137060

Acharya, S., Filip Erhardt, Sven Gotovac, Marko Jerčić, David Karatović, Petra Lončar, Eugen Mudnić, et al. "Investigating the role of strangeness in baryon–antibaryon annihilation at the LHC." Physics Letters B 829 (2022). https://doi.org/10.1016/j.physletb.2022.137060

Acharya, S., et al. (2022) 'Investigating the role of strangeness in baryon–antibaryon annihilation at the LHC', Physics Letters B, 829. doi: 10.1016/j.physletb.2022.137060

Acharya S, Erhardt F, Gotovac S, Jerčić M, Karatović D, Lončar P, and sur.. Investigating the role of strangeness in baryon–antibaryon annihilation at the LHC. Physics Letters B [Internet]. 2022 [cited 2025 March 28];829. doi: 10.1016/j.physletb.2022.137060

S. Acharya, et al., "Investigating the role of strangeness in baryon–antibaryon annihilation at the LHC", Physics Letters B, vol. 829, 2022. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:017389. [Accessed: 28 March 2025]

Metadata
Title (english)Investigating the role of strangeness in baryon–antibaryon annihilation at the LHC
AuthorS. Acharya
Author
...
AuthorFilip Erhardt
Author
...
AuthorSven Gotovac
Author
...
AuthorMarko Jerčić
Author
...
AuthorDavid Karatović
Author
...
AuthorPetra Lončar
Author
...
AuthorEugen Mudnić
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)
Annihilation dynamics plays a fundamental role in the baryon–antibaryon interaction (B–B‾) at low- energy and its strength and range are crucial in the assessment of possible baryonic bound states. Experimental data on annihilation cross sections are available for the p–p‾ system but not in the low relative momentum region. Data regarding the B–B‾ interaction with strange degrees of freedom are extremely scarce, hence the modeling of the annihilation contributions is mainly based on... More nucleon–antinucleon (N–N‾) results, when available. In this letter we present a measurement of the p–p‾, p–Λ‾⊕p‾–Λ and Λ–Λ‾ interaction using correlation functions in the relative momentum space in high- multiplicity triggered pp collisions at s=13 TeV recorded by ALICE at the LHC. In the p–p‾ system the couplings to the mesonic channels in different partial waves are extracted by adopting a coupled- channel approach with recent χEFT potentials. The inclusion of these inelastic channels provides good agreement with the data, showing a significant presence of the annihilation term down to zero momentum. Predictions obtained using the Lednický– Lyuboshits formula and scattering parameters obtained from heavy-ion collisions, hence mainly sensitive to elastic processes, are compared with the experimental p–Λ‾⊕p‾–Λ and Λ–Λ‾ correlations. The model describes the Λ–Λ‾ data and underestimates the p–Λ‾⊕p‾–Λ data in the region of momenta below 200 MeV/c. The observed deviation indicates a different contribution of annihilation channels to the two systems containing strange hadrons. Less
Keywords (english)
Languageenglish
Publication typeScientific paper - Letter
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysics Letters B
Numberingvol. 829, 137060
p-ISSN0370-2693
DOIhttps://doi.org/10.1016/j.physletb.2022.137060
URN:NBNurn:nbn:hr:217:017389
Publication2022
Document URLhttps://linkinghub.elsevier.com/retrieve/pii/S0370269322001940
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2022 European Organization for Nuclear Research. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. Received 9 September 2021. Received in revised form 21 February 2022. Accepted 17 March 2022. Available online 4 April 2022. Published 10 June 2022.
Created on2024-09-10 20:31:39
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