Fiducial and differential cross sections of Higgs boson production measured in the four-lepton decay channel in pp collisions at √s=8TeV with the ATLAS detector

Aad, G.; Abbott, B.; Abdallah, J.; Adomeit, Stefanie; Becker, S.; Biebel, Otmar; Bock, Christopher; Bortfeldt, Jonathan; Calfayan, Philippe; Chow, Bonnie Kar Bo; Duckeck, Günter; Ebke, J.; Elmsheuser, Johannes; Heller, C.; Hertenberger, Ralf; Hoenig, F.; Legger, Federica; Lorenz, J.; Mann, A.; Mehlhase, Sascha; Meineck, C.; Mitrevski, Jovan; Nunnemann, Thomas; Rauscher, F.; Ruschke, Alexander; Sanders, Michiel Paul; Schaile, Dorothee; Schieck, J.; Unverdorben, Christopher; Vladoiu, Dan-Nicolae; Walker, R.; Will, J. Z. und Wittkowski, J. (2014): Fiducial and differential cross sections of Higgs boson production measured in the four-lepton decay channel in pp collisions at √s=8TeV with the ATLAS detector. In: Physics Letters B, Bd. 738: S. 234-253

Abstract

Measurements of fiducial and differential cross sections of Higgs boson production in the H→ZZ⁎→4ℓ decay channel are presented. The cross sections are determined within a fiducial phase space and corrected for detection efficiency and resolution effects. They are based on 20.3 fb−1 of pp collision data, produced at √s=8TeV centre-of-mass energy at the LHC and recorded by the ATLAS detector. The differential measurements are performed in bins of transverse momentum and rapidity of the four-lepton system, the invariant mass of the subleading lepton pair and the decay angle of the leading lepton pair with respect to the beam line in the four-lepton rest frame, as well as the number of jets and the transverse momentum of the leading jet. The measured cross sections are compared to selected theoretical calculations of the Standard Model expectations. No significant deviation from any of the tested predictions is found.

• Dokumententyp: Zeitschriftenartikel
• Publikationsform: Publisher's Version
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 0370-2693
• Allianz-/Nationallizenz: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
• Sprache: Englisch