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| Verfasst von: | Acharya, Shreyasi [VerfasserIn]  |
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| | Angelov, Venelin [VerfasserIn] |
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| | Arslandok, Mesut [VerfasserIn] |
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| | Berdnikova, Anastasia [VerfasserIn] |
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| | Bergmann, Luisa [VerfasserIn] |
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| | Danisch, Meike [VerfasserIn] |
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| | Feuillard, Victor [VerfasserIn] |
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| | Glässel, Peter [VerfasserIn] |
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| | Kim, Jiyoung [VerfasserIn] |
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| | Kim, Minjung [VerfasserIn] |
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| | Köhler, Markus Konrad [VerfasserIn] |
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| | Kroesen, Martin [VerfasserIn] |
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| | López, Jorge [VerfasserIn] |
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| | Nath, Abhishek [VerfasserIn] |
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| | Pachmayer, Yvonne C. [VerfasserIn] |
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| | Reygers, Klaus [VerfasserIn] |
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| | Schicker, Rainer [VerfasserIn] |
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| | Schmah, Alexander [VerfasserIn] |
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| | Skorodumovs, Georgijs [VerfasserIn] |
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| | Stachel, Johanna [VerfasserIn] |
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| | Stiefelmaier, Stephan [VerfasserIn] |
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| | Völkl, Martin [VerfasserIn] |
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| | Windelband, Bernd [VerfasserIn] |
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| | Yüncü, Alperen [VerfasserIn] |
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| Titel: | Kaon-proton strong interaction at low relative momentum via femtoscopy in Pb-Pb collisions at the LHC |
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| Körperschaft: | ALICE [VerfasserIn] |
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| Verf.angabe: | ALICE Collaboration* |
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| E-Jahr: | 2021 |
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| Jahr: | 6 October 2021 |
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| Umfang: | 14 S. |
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| Fussnoten: | ALICE Collaboration: S. Acharya, V. Angelov, M. Arslandok, A. Berdnikova, L. Bergmann, M. Danisch, V.J.G. Feuillard, P. Glässel, J. Kim, M. Kim, M. Kroesen, A. Nath, Y. Pachmayer, K. Reygers, R. Schicker, A. Schmah, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, M.A. Völkl, B. Windelband, A. Yüncü [und viele weitere Personen] ; Gesehen am 17.02.2022 |
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| Titel Quelle: | Enthalten in: Physics letters / B |
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| Ort Quelle: | Amsterdam : North-Holland Publ., 1967 |
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| Jahr Quelle: | 2021 |
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| Band/Heft Quelle: | 822(2021), Artikel-ID 136708, Seite 1-14 |
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| ISSN Quelle: | 1873-2445 |
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| Abstract: | 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. |
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| DOI: | doi:10.1016/j.physletb.2021.136708 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1016/j.physletb.2021.136708 |
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| | Volltext: https://www.sciencedirect.com/science/article/pii/S0370269321006481 |
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| | DOI: https://doi.org/10.1016/j.physletb.2021.136708 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1789973767 |
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| Verknüpfungen: | → Zeitschrift |
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Kaon-proton strong interaction at low relative momentum via femtoscopy in Pb-Pb collisions at the LHC / Acharya, Shreyasi [VerfasserIn]; 6 October 2021 (Online-Ressource)
