Measurement of the differential cross sections for top quark pair production as a function of kinematic event variables in pp collisions at √s = 7 and 8 TeV

• Main Authors: Apyan, Aram (Contributor), Barbieri, Richard Alexander (Contributor), Baty, Austin Alan (Contributor), Bierwagen, Katharina (Contributor), Brandt, Stephanie Akemi (Contributor), Busza, Wit (Contributor), Cali, Ivan Amos (Contributor), Demiragli, Zeynep (Contributor), Di Matteo, Leonardo (Contributor), Gomez-Ceballos, Guillelmo (Contributor), Goncharov, Maxim (Contributor), Gulhan, Doga Can (Contributor), Iiyama, Yutaro (Contributor), Innocenti, Gian Michele (Contributor), Klute, Markus (Contributor), Kovalskyi, Dmytro (Contributor), Lai, Yue Shi (Contributor), Lee, Yen-Jie (Contributor), Levin, Andrew Michael (Contributor), Luckey Jr, P David (Contributor), Marini, Andrea Carlo (Contributor), McGinn, Christopher Francis (Contributor), Mironov, Camelia Maria (Contributor), Niu, Xinmei (Contributor), Paus, Christoph M. E. (Contributor), Ralph, Duncan Kelley (Contributor), Roland, Christof E (Contributor), Roland, Gunther M (Contributor), Salfeld-Nebgen, Jakob Maxillian Henry (Contributor), Stephans, George S. F. (Contributor), Sumorok, Konstanty C (Contributor), Varma, Mukund Madhav (Contributor), Velicanu, Dragos Alexandru (Contributor), Veverka, Jan (Contributor), Wang, J. (Contributor), Wang, Ta-Wei (Contributor), Wyslouch, Boleslaw (Contributor), Yang, Mingming (Contributor), Wyslouch, Victoria (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
• Format: Article
• Language: English
• Published: American Physical Society, 2017-03-21T15:42:36Z.
• Subjects: Article
• Online Access: Get fulltext

Measurements are reported of the normalized differential cross sections for top quark pair production with respect to four kinematic event variables: the missing transverse energy; the scalar sum of the jet transverse momentum (p[subscript T]); the scalar sum of the p[subscript T] of all objects in the event; and the p[subscript T] of leptonically decaying W bosons from top quark decays. The data sample, collected using the CMS detector at the LHC, consists of 5.0 fb[superscript −1] of proton-proton collisions at √s = 7 TeV and 19.7 fb [superscript −1] at √s = 8 TeV. Top quark pair events containing one electron or muon are selected. The results are presented after correcting for detector effects to allow direct comparison with theoretical predictions. No significant deviations from the predictions of several standard model event simulation generators are observed.
United States. Dept. of Energy
National Science Foundation (U.S.)