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Search for physics beyond the standard model in events with a Z boson, jets, and missing transverse energy in pp collisions at √s =7 TeV

Author(s)
Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, Ivan Amos; Chan, M.; Dutta, Valentina; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Hahn, Kristian Allan; Kim, Y.; Klute, Markus; Lee, Yen-Jie; Nahn, Steven; Paus, Christoph M. E.; Ralph, Duncan Kelley; Rudolph, Matthew Scott; Stephans, George S. F.; Stoeckli, Fabian; Sung, Kevin Kai Hong; Velicanu, Dragos Alexandru; Wenger, Edward Allen; Wyslouch, Boleslaw; Xie, Si; Yang, Mingming; Yilmaz, Yetkin; Yoon, A. S.; Zanetti, Marco; CMS Collaboration; Bauer, Gerry P; Li, W.; Luckey Jr, P David; Ma, Teng; Roland, Christof E; Roland, Gunther M; Sumorok, Konstanty C; Wolf, Roger; ... Show more Show less
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
A search is presented for physics beyond the standard model (BSM) in events with a Z boson, jets, and missing transverse energy (Emiss[over]T) This signature is motivated by BSM physics scenarios, including supersymmetry. The study is performed using a sample of proton–proton collision data collected at √s =7 TeV with the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.98 fb[superscript −1]. The contributions from the dominant standard model backgrounds are estimated from data using two complementary strategies, the jet-Z balance technique and a method based on modeling Emiss[over]T with data control samples. In the absence of evidence for BSM physics, we set limits on the non-standard-model contributions to event yields in the signal regions and interpret the results in the context of simplified model spectra. Additional information is provided to facilitate tests of other BSM physics models.
Date issued
2012-09
URI
http://hdl.handle.net/1721.1/91804
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physics Letters B
Publisher
Elsevier B.V.
Citation
Chatrchyan, S., V. Khachatryan, A.M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Search for Physics Beyond the Standard Model in Events with a Z Boson, Jets, and Missing Transverse Energy in Pp Collisions at √s =7 TeV.” Physics Letters B 716, no. 2 (September 2012): 260–284.
Version: Final published version
ISSN
03702693

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