Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at [sqrt]s=7  TeV

Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at [sqrt]s=7  TeV

A search for pair production of first-generation scalar leptoquarks is performed in the final state containing two electrons and two jets using proton-proton collision data at [sqrt]s=7  TeV. The data sample used corresponds to an integrated luminosity of 33  pb[superscript -1] collected with the CM...

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मुख्य लेखकों: Alver, Burak Han, Bendavid, Joshua L., Busza, Wit, Butz, Erik M., Cali, Ivan Amos, Chan, M., Dutta, Valentina, Everaerts, Pieter Bruno Bart, Gomez-Ceballos, Guillelmo, Hahn, Kristian Allan, Kim, Y., Klute, Markus, Ma, Teng, Nahn, Steven, Paus, Christoph M. E., Ralph, Duncan Kelley, Stephans, George S. F., Sung, Kevin Kai Hong, Wenger, Edward Allen, Xie, Si, Wang, M., Yilmaz, Yetkin, Yoon, A. S., Zanetti, Marco, Harris, Philip Coleman, Li, W., Luckey Jr, P David, Roland, Gunther M, Lee, Yen-Jie, Loizides, Constantinos, Roland, Christof E, Rudolph, Matthew Scott, Sumorok, Konstanty C, Bauer, Gerry P
अन्य लेखक: Massachusetts Institute of Technology. Department of Physics
स्वरूप: लेख
भाषा:en_US
प्रकाशित: American Physical Society 2011
ऑनलाइन पहुंच:http://hdl.handle.net/1721.1/67253
https://orcid.org/0000-0002-3831-9071
https://orcid.org/0000-0003-3106-4894
https://orcid.org/0000-0001-8983-2169
https://orcid.org/0000-0002-6047-4211
https://orcid.org/0000-0003-2593-7767
https://orcid.org/0000-0002-0869-5631
विवरण
सारांश:A search for pair production of first-generation scalar leptoquarks is performed in the final state containing two electrons and two jets using proton-proton collision data at [sqrt]s=7  TeV. The data sample used corresponds to an integrated luminosity of 33  pb[superscript -1] collected with the CMS detector at the CERN LHC. The number of observed events is in good agreement with the predictions for the standard model background processes, and an upper limit is set on the leptoquark pair production cross section times beta[superscript 2] as a function of the leptoquark mass, where beta is the branching fraction of the leptoquark decay to an electron and a quark. A 95% confidence level lower limit is set on the mass of a first-generation scalar leptoquark at 384 GeV for beta=1, which is the most stringent direct limit to date.

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