| |  Online-Ressource |
|---|
| Verfasst von: | Acharya, Shreyasi [VerfasserIn]  |
|---|
| | Angelov, Venelin [VerfasserIn] |
|---|
| | Arslandok, Mesut [VerfasserIn] |
|---|
| | Danisch, Meike [VerfasserIn] |
|---|
| | Feuillard, Victor [VerfasserIn] |
|---|
| | Glässel, Peter [VerfasserIn] |
|---|
| | Kim, Jiyoung [VerfasserIn] |
|---|
| | Kim, Minjung [VerfasserIn] |
|---|
| | Köhler, Markus Konrad [VerfasserIn] |
|---|
| | Ohlson, Alice [VerfasserIn] |
|---|
| | Pachmayer, Yvonne C. [VerfasserIn] |
|---|
| | Reygers, Klaus [VerfasserIn] |
|---|
| | Schicker, Rainer [VerfasserIn] |
|---|
| | Schmah, Alexander [VerfasserIn] |
|---|
| | Schmidt, Marten Ole [VerfasserIn] |
|---|
| | Stachel, Johanna [VerfasserIn] |
|---|
| | Windelband, Bernd [VerfasserIn] |
|---|
| | Yüncü, Alperen [VerfasserIn] |
|---|
| Titel: | First observation of an attractive interaction between a proton and a cascade baryon |
|---|
| Körperschaft: | ALICE [VerfasserIn] |
|---|
| Verf.angabe: | S. Acharya et al. (a Large Ion Collider Experiment Collaboration) |
|---|
| E-Jahr: | 2019 |
|---|
| Jahr: | 13 September 2019 |
|---|
| Umfang: | 13 S. |
|---|
| Fussnoten: | Der Name "Yuncu" [Yüncü] ist in der Verfasserangabe falsch geschrieben ; Gesehen am 30.10.2019 ; S. Acharay,V. Anguelov, M. Arslandok, M.C. Danisch, V.J.G. Feuillard, P. Glässel, J. Kim, M. Kim, M.K. Köhler, A. Ohlson, Y. Pachmayer, K. Reygers, R. Schicker, A. Schmah, M.O. Schmidt, J. Stachel, B. Windelband, A. Yuncu [und weitere] |
|---|
| Titel Quelle: | Enthalten in: Physical review letters |
|---|
| Ort Quelle: | College Park, Md. : APS, 1958 |
|---|
| Jahr Quelle: | 2019 |
|---|
| Band/Heft Quelle: | 123(2019,11) Artikel-Nummer 112002, 13 Seiten |
|---|
| ISSN Quelle: | 1079-7114 |
|---|
| Abstract: | This Letter presents the first experimental observation of the attractive strong interaction between a proton and a multistrange baryon (hyperon) Ξ−. The result is extracted from two-particle correlations of combined p−Ξ−⊕¯p−¯Ξ+ pairs measured in p−Pb collisions at √sNN=5.02 TeV at the LHC with ALICE. The measured correlation function is compared with the prediction obtained assuming only an attractive Coulomb interaction and a standard deviation in the range [3.6, 5.3] is found. Since the measured p−Ξ−⊕¯p−¯Ξ+ correlation is significantly enhanced with respect to the Coulomb prediction, the presence of an additional, strong, attractive interaction is evident. The data are compatible with recent lattice calculations by the HAL-QCD Collaboration, with a standard deviation in the range [1.8, 3.7]. The lattice potential predicts a shallow repulsive Ξ− interaction within pure neutron matter and this implies stiffer equations of state for neutron-rich matter including hyperons. Implications of the strong interaction for the modeling of neutron stars are discussed. |
|---|
| DOI: | doi:10.1103/PhysRevLett.123.112002 |
|---|
| 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: https://doi.org/10.1103/PhysRevLett.123.112002 |
|---|
| | Verlag: https://link.aps.org/doi/10.1103/PhysRevLett.123.112002 |
|---|
| | DOI: https://doi.org/10.1103/PhysRevLett.123.112002 |
|---|
| Datenträger: | Online-Ressource |
|---|
| Sprache: | eng |
|---|
| K10plus-PPN: | 1680692607 |
|---|
| Verknüpfungen: | → Zeitschrift |
|---|
First observation of an attractive interaction between a proton and a cascade baryon / Acharya, Shreyasi [VerfasserIn]; 13 September 2019 (Online-Ressource)
