First measurement of the cross section for top-quark pair production in proton–proton collisions at √s = 7 TeV

First measurement of the cross section for top-quark pair production in proton–proton collisions at √s = 7 TeV

The first measurement of the cross section for top-quark pair production in pp collisions at the Large Hadron Collider at center-of-mass energy √s = 7 TeV has been performed using a data sample corresponding to an integrated luminosity of 3.1±0.3 pb[superscript −1] recorded by the CMS detector. This...

Full description

Bibliographic Details
Main Authors: Alver, B., Bauer, Gerry P., Bendavid, Joshua L., Busza, Wit, Butz, Erik M., Cali, Ivan Amos, Chan, M., Dutta, V., Everaerts, Pieter Bruno Bart, Gomez-Ceballos, Guillelmo, Goncharov, Maxim, Hahn, Kristian Allan, Harris, P., Kim, Y., Klute, Markus, Lee, Y.-J., Li, W., Loizides, C., Lopez, Jeremy Paul, Luckey, P. David, Jr., Ma, Teng, Nahn, Steven, Paus, Christoph M. E., Roland, Christof E., Roland, Gunther M., Rudolph, Matthew Scott, Stephans, George S. F., Sumorok, Konstanty C., Sung, Kevin Kai Hong, Wenger, Edward Allen, Xie, S., Yang, M., Yilmaz, Yetkin, Yoon, A. S., Zanetti, Marco, Wyslouch, Boleslaw
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: Elsevier 2014
Online Access:http://hdl.handle.net/1721.1/92570
https://orcid.org/0000-0002-3831-9071
https://orcid.org/0000-0003-3106-4894
https://orcid.org/0000-0003-3226-787X
https://orcid.org/0000-0001-6332-5839
https://orcid.org/0000-0001-8983-2169
https://orcid.org/0000-0002-6047-4211
https://orcid.org/0000-0003-3681-0649
https://orcid.org/0000-0003-2593-7767
https://orcid.org/0000-0002-0869-5631
Description
Summary:The first measurement of the cross section for top-quark pair production in pp collisions at the Large Hadron Collider at center-of-mass energy √s = 7 TeV has been performed using a data sample corresponding to an integrated luminosity of 3.1±0.3 pb[superscript −1] recorded by the CMS detector. This result utilizes the final state with two isolated, highly energetic charged leptons, large missing transverse energy, and two or more jets. Backgrounds from Drell–Yan and non-W/Z boson production are estimated from data. Eleven events are observed in the data with 2.1±1.0 events expected from background. The measured cross section is 194±72(stat.)±24(syst.)±21(lumi.) pb, consistent with next-to-leading order predictions.

Similar Items