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W±-boson production in p–Pb collisions at √sNN = 8.16 TeV and Pb–Pb collisions at √sNN = 5.02 TeV
(2022)
The production of the W± bosons measured in p−Pb collisions at a centre-of-mass energy per nucleon−nucleon collision sNN−−−−√=8.16 TeV and Pb−Pb collisions at sNN−−−−√=5.02 TeV with ALICE at the LHC is presented. The W± bosons are measured via their muonic decay channel, with the muon reconstructed in the pseudorapidity region −4<ημlab<−2.5 with transverse momentum pμT>10 GeV/c. While in Pb−Pb collisions the measurements are performed in the forward (2.5<yμcms<4) rapidity region, in p−Pb collisions, where the centre-of-mass frame is boosted with respect to the laboratory frame, the measurements are performed in the backward (−4.46<yμcms<−2.96) and forward (2.03<yμcms<3.53) rapidity regions. The W− and W+ production cross sections, lepton-charge asymmetry, and nuclear modification factors are evaluated as a function of the muon rapidity. In order to study the production as a function of the p−Pb collision centrality, the production cross sections of the W− and W+ bosons are combined and normalised to the average number of binary nucleon−nucleon collision ⟨Ncoll⟩. In Pb−Pb collisions, the same measurements are presented as a function of the collision centrality. Study of the binary scaling of the W±-boson cross sections in p−Pb and Pb−Pb collisions is also reported. The results are compared with perturbative QCD (pQCD) calculations, with and without nuclear modifications of the Parton Distribution Functions (PDFs), as well as with available data at the LHC. Significant deviations from the theory expectations are found in the two collision systems, indicating that the measurements can provide additional constraints for the determination of nuclear PDF (nPDFs) and in particular of the light-quark distributions.
Brandaktuelles Theater : die Chaincourt Theatre Company adaptiert Ray Bradburys "Fahrenheit 451"
(2023)
W±-boson production in p–Pb collisions at √sNN = 8.16 TeV and Pb–Pb collisions at √sNN = 5.02 TeV
(2022)
The production of the W± bosons measured in p−Pb collisions at a centre-of-mass energy per nucleon−nucleon collision sNN−−−−√=8.16 TeV and Pb−Pb collisions at sNN−−−−√=5.02 TeV with ALICE at the LHC is presented. The W± bosons are measured via their muonic decay channel, with the muon reconstructed in the pseudorapidity region −4<ημlab<−2.5 with transverse momentum pμT>10 GeV/c. While in Pb−Pb collisions the measurements are performed in the forward (2.5<yμcms<4) rapidity region, in p−Pb collisions, where the centre-of-mass frame is boosted with respect to the laboratory frame, the measurements are performed in the backward (−4.46<yμcms<−2.96) and forward (2.03<yμcms<3.53) rapidity regions. The W− and W+ production cross sections, lepton-charge asymmetry, and nuclear modification factors are evaluated as a function of the muon rapidity. In order to study the production as a function of the p−Pb collision centrality, the production cross sections of the W− and W+ bosons are combined and normalised to the average number of binary nucleon−nucleon collision ⟨Ncoll⟩. In Pb−Pb collisions, the same measurements are presented as a function of the collision centrality. Study of the binary scaling of the W±-boson cross sections in p−Pb and Pb−Pb collisions is also reported. The results are compared with perturbative QCD (pQCD) calculations, with and without nuclear modifications of the Parton Distribution Functions (PDFs), as well as with available data at the LHC. Significant deviations from the theory expectations are found in the two collision systems, indicating that the measurements can provide additional constraints for the determination of nuclear PDF (nPDFs) and in particular of the light-quark distributions.
This is the Proceedings of the "International Conference on Motivation 2012" carried out by the Special Interest Group "Motivation and Emotion" of the European Association for Research on Learning and Instruction (EARLI) in cooperation with the German Institute for International Educational Research (DIPF) and the Goethe University Frankfurt. (DIPF/author).
Uni-Highlights Februar 2024 : Einladungen zu ausgewählten Veranstaltungen der Goethe-Universität
(2024)
Von A bis Å. (Fast) alles über die Frankfurter Skandinavistik. Ausgabe 8 ; Sommeremester 2024
(2024)
Weiträumige Kontaktnetzwerke sorgen für Verbreitung und Transfer von Wissen und Gütern sowie von kulturellen Werten. Der Transport von Lasten und Menschen kann als einer der wichtigsten Eckpfeiler solcher Austauschsysteme gesehen werden. Daher dürften die Suche nach Transportmöglichkeiten und die Entwicklung geeigneter Vehikel in der menschlichen Gedankenwelt seit jeher fest verankert sein. Die hier vorliegenden Beiträge basieren auf den Vorträgen der Tagung „Transporte, Transportwege und Transportstrukturen“ der Arbeitsgemeinschaft Bronzezeit und des Sonderforschungsbereiches 1070 RessourcenKulturen. Sie fassen im archäologischen Befund der Bronzezeit vorhandene Evidenzen zu Transportwegen und -fahrzeugen sowie Aussagen zu Infrastruktur nicht nur zusammen, sondern ergänzen diese um zahlreiche wissenswerte Aspekte. Was können diese Befunde über die Transportvehikel und ihre Bedeutung aussagen? Welche Eigenschaften wiesen diese auf? Handelt es sich bei den Fundstücken um abgenutzte oder mutwillig zerstörte Fahrzeuge bzw. Teile von solchen? Welche Implikationen auf technologischer und sozialer Ebene lassen sich mit den Befunden verbinden? Wie muss man sich die bronzezeitliche Infrastruktur in unterschiedlichen Regionen vorstellen? Inwiefern bildeten Verkehrswege und Austausch eine Ressource? Der detaillierten Beantwortung dieser Fragen ist dieser Band gewidmet, woraus eine übergreifende Zusammenschau von Funden, Befunden und Theorien entstanden ist.