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Scientific paper - Letter
Kaon–proton strong interaction at low relative momentum via femtoscopy in Pb–Pb collisions at the LHC
Physics Letters B, 822 (2021); 136708. https://doi.org/10.1016/j.physletb.2021.136708
(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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Acharya, S., Erhardt, F., Gotovac, S., Jerčić, M., Karatović, D., Lončar, P. ... Zurlo, N. (2021). Kaon–proton strong interaction at low relative momentum via femtoscopy in Pb–Pb collisions at the LHC. Physics Letters B, 822.. doi: 10.1016/j.physletb.2021.136708

Acharya, S., et al. "Kaon–proton strong interaction at low relative momentum via femtoscopy in Pb–Pb collisions at the LHC." Physics Letters B, vol. 822, 2021. https://doi.org/10.1016/j.physletb.2021.136708

Acharya, S., Filip Erhardt, Sven Gotovac, Marko Jerčić, David Karatović, Petra Lončar, Eugen Mudnić, et al. "Kaon–proton strong interaction at low relative momentum via femtoscopy in Pb–Pb collisions at the LHC." Physics Letters B 822 (2021). https://doi.org/10.1016/j.physletb.2021.136708

Acharya, S., et al. (2021) 'Kaon–proton strong interaction at low relative momentum via femtoscopy in Pb–Pb collisions at the LHC', Physics Letters B, 822. doi: 10.1016/j.physletb.2021.136708

Acharya S, Erhardt F, Gotovac S, Jerčić M, Karatović D, Lončar P, and sur.. Kaon–proton strong interaction at low relative momentum via femtoscopy in Pb–Pb collisions at the LHC. Physics Letters B [Internet]. 2021 [cited 2025 February 26];822. doi: 10.1016/j.physletb.2021.136708

S. Acharya, et al., "Kaon–proton strong interaction at low relative momentum via femtoscopy in Pb–Pb collisions at the LHC", Physics Letters B, vol. 822, 2021. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:742168. [Accessed: 26 February 2025]

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Metadata
Title (english)Kaon–proton strong interaction at low relative momentum via femtoscopy in Pb–Pb collisions 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)
In quantum scattering processes between two particles, aspects characterizing the strong and Coulomb forces can be observed in kinematic distributions of the particle pairs. The sensitivity to the interaction potential reaches a maximum at low relative momentum and vanishing distance between the two particles. Ultrarelativistic heavy-ion collisions at the LHC provide an abundant source of many hadron species and can be employed as a measurement method of scattering parameters that is complementary to scattering experiments. This study confirms that momentum correlations of particles produced in Pb-Pb collisions at the LHC provide an accurate measurement of kaon-proton scattering parameters at low relative momentum, allowing precise access to the K−p→K−p process. This work also validates the femtoscopic measurement in ultrarelativistic heavy-ion collisions as an alternative to scattering experiments and a complementary tool to the study of exotic atoms with comparable precision. In this work, the first femtoscopic measurement of momentum correlations of K−p(K+p) and K+p(K−p) pairs in Pb-Pb collisions at centre-of-mass energy per nucleon pair of √sNN=5.02 TeV registered by the ALICE experiment is reported. The components of the K−p complex scattering length are extracted and found to be ℜf0 =−0.91±0.03(stat) −0.03+0.17(syst) and ℑf0=0.92± 0.05(stat) −0.33+0.12(syst). The results are compared with chiral effective field theory predictions as well as with existing data from dedicated scattering and exotic kaonic atom experiments.
Keywords (english)
Languageenglish
Publication typeScientific paper - Letter
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysics Letters B
Numberingvol. 822, 136708
p-ISSN0370-2693
DOIhttps://doi.org/10.1016/j.physletb.2021.136708
URN:NBNurn:nbn:hr:217:742168
Publication2021
Document URLhttps://linkinghub.elsevier.com/retrieve/pii/S0370269321006481
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2021 ALICE, 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 29 July 2021. Received in revised form 29 September 2021. Accepted 1 October 2021. Available online 6 October 2021.
Created on2024-09-18 12:42:04