Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC
ALICE Collaboration. (2023). Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC. European Physical Journal C, 83(4), Article 340. https://doi.org/10.1140/epjc/s10052-023-11476-0
Julkaistu sarjassa
European Physical Journal CTekijät
Päivämäärä
2023Tekijänoikeudet
© The Author(s) 2023
The interaction of K−with protons is characterised by the presence of several coupled channels, systems like K0 n and πΣ with a similar mass and the same quantum numbers as the K−p state. The strengths of these couplings to the K−p system are of crucial importance for the understanding of the nature of the Λ(1405) resonance and of the attractive K−p strong interaction. In this article, we present measurements of the K−p correlation functions in relative momentum space obtained in pp collisions at √s = 13 TeV, in p–Pb collisions at √sNN = 5.02 TeV, and (semi)peripheral Pb–Pb collisions at √sNN = 5.02 TeV. The emitting source size, composed of a core radius anchored to the K+p correlation and of a resonance halo specific to each particle pair, varies between 1 and 2 fm in these collision systems. The strength and the effects of the K0 n and πΣ inelastic channels on the measured K−p correlation function are investigated in the different colliding systems by comparing the data with state-of-the-art models of chiral potentials. A novel approach to determine the conversion weights ω, necessary to quantify the amount of produced inelastic channels in the correlation function, is presented. In this method, particle yields are estimated from thermal model predictions, and their kinematic distribution from blast-wave fits to measured data. The comparison of chiral potentials to the measured K−p interaction indicates that, while the πΣ–K−p dynamics is well reproduced by the model, the coupling to the K0 n channel in the model is currently underestimated.
...
Julkaisija
SpringerISSN Hae Julkaisufoorumista
1434-6044Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/183290851
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen Akatemia; Euroopan komissioRahoitusohjelmat(t)
Huippuyksikkörahoitus, SA
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Measurement of strange baryon–antibaryon interactions with femtoscopic correlations
ALICE Collaboration (Elsevier, 2020)Two-particle correlation functions were measured for pp‾, pΛ‾, p‾Λ, and ΛΛ‾ pairs in Pb–Pb collisions at sNN=2.76 TeV and sNN=5.02 TeV recorded by the ALICE detector. From a simultaneous fit to all obtained correlation ... -
Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at √sNN = 2.76 and 5.02 TeV
ALICE collaboration (Springer, 2020)Systematic studies of charge-dependent two- and three-particle correlations in Pb-Pb collisions at √sNN = 2.76 and 5.02 TeV used to probe the Chiral Magnetic Effect (CME) are presented. These measurements are performed for ... -
Communication-Efficient Federated Learning in Channel Constrained Internet of Things
Hu, Tao; Zhang, Xinran; Chang, Zheng; Hu, Fengye; Hämäläinen, Timo (IEEE, 2022)Federated learning (FL) is able to utilize the computing capability and maintain the privacy of the end devices by collecting and aggregating the locally trained learning model parameters while keeping the local personal ... -
Clusterization and Strong Coulpled-Channels Effects in Deuteron Interaction with 9Be Nuclei
Urazbekov, Bakytzhan; Denikin, A. S.; Lukyanov, Sergei; Itaco, N.; Janseitov, D.; Mendibayev, K.; Burjan, Vaclav; Kroha, Vaclav; Mrazek, J.; Trzaska, Wlasyslaw; Harakeh, M. N.; Etasse, D.; Stefan, I.; Verney, David; Issatayev, T.; Penionzhkevich, YU; Kuterbekov, Kairat; Zholdybayev, T. (Institute of Physics Publishing Ltd., 2019)Angular distributions of protons, deuterons, tritons and alphaparticles emitted in the d + 9Be reaction at Elab=19.5 and 35.0 MeV have been measured. The elastic scattering channel is analysed in the framework of both the ... -
Observation of an ultralow-Q-value electron-capture channel decaying to 75As via a high-precision mass measurement
Ramalho, M.; Ge, Z.; Eronen, T.; Nesterenko, D. A.; Jaatinen, J.; Jokinen, A.; Kankainen, A.; Kostensalo, J.; Kotila, J.; Krivoruchenko, M. I.; Suhonen, J.; Tyrin, K. S.; Virtanen, V. (American Physical Society (APS), 2022)A precise determination of the atomic mass of 75As has been performed utilizing the double Penning trap mass spectrometer, JYFLTRAP. The mass excess is measured to be −73035.519(42)keV/c2, which is a factor of 21 more ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.