Search for excited quarks in the γ + jet final state in proton-proton collisions at √s = 8 TeV

A search for excited quarks decaying into the γ+jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7 fb[superscript −1] collected by the CMS experiment in proton-proton collisions at √s = 8 TeV at the LHC. Events with photons and jets with hig...

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Main Authors: Apyan, Aram (Contributor), Barbieri, R. (Contributor), Bauer, Gerry P. (Contributor), Busza, Wit (Contributor), Cali, Ivan Amos (Contributor), Chan, M. (Contributor), Di Matteo, Leonardo (Contributor), Dutta, V. (Contributor), Gomez-Ceballos, Guillelmo (Contributor), Goncharov, Maxim (Contributor), Gulhan, Doga Can (Contributor), Klute, Markus (Contributor), Lai, Yue Shi (Contributor), Lee, Y.-J (Contributor), Levin, A. (Contributor), Luckey, P. David, Jr (Contributor), Ma, Teng (Contributor), Paus, Christoph M. E. (Contributor), Ralph, Duncan Kelley (Contributor), Roland, Christof E. (Contributor), Roland, Gunther M. (Contributor), Stephans, George S. F. (Contributor), Stockli, Fabian (Contributor), Velicanu, Dragos Alexandru (Contributor), Veverka, Jan (Contributor), Wyslouch, Boleslaw (Contributor), Yang, M. (Contributor), Zanetti, Marco (Contributor), Zhukova, Victoria (Contributor), Sumorok, Konstanty C. (Contributor)
Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor), Massachusetts Institute of Technology. School of Science (Contributor)
Format: Article
Language:English
Published: Elsevier, 2015-01-05T15:28:57Z.
Subjects:
Online Access:Get fulltext
LEADER 04170 am a22009253u 4500
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042 |a dc 
100 1 0 |a Apyan, Aram  |e author 
100 1 0 |a Massachusetts Institute of Technology. Department of Physics  |e contributor 
100 1 0 |a Massachusetts Institute of Technology. Laboratory for Nuclear Science  |e contributor 
100 1 0 |a Massachusetts Institute of Technology. School of Science  |e contributor 
100 1 0 |a Apyan, Aram  |e contributor 
100 1 0 |a Barbieri, R.  |e contributor 
100 1 0 |a Bauer, Gerry P.  |e contributor 
100 1 0 |a Busza, Wit  |e contributor 
100 1 0 |a Cali, Ivan Amos  |e contributor 
100 1 0 |a Chan, M.  |e contributor 
100 1 0 |a Di Matteo, Leonardo  |e contributor 
100 1 0 |a Dutta, V.  |e contributor 
100 1 0 |a Gomez-Ceballos, Guillelmo  |e contributor 
100 1 0 |a Goncharov, Maxim  |e contributor 
100 1 0 |a Gulhan, Doga Can  |e contributor 
100 1 0 |a Klute, Markus  |e contributor 
100 1 0 |a Lai, Yue Shi  |e contributor 
100 1 0 |a Lee, Y.-J.  |e contributor 
100 1 0 |a Levin, A.  |e contributor 
100 1 0 |a Luckey, P. David, Jr.  |e contributor 
100 1 0 |a Ma, Teng  |e contributor 
100 1 0 |a Paus, Christoph M. E.  |e contributor 
100 1 0 |a Ralph, Duncan Kelley  |e contributor 
100 1 0 |a Roland, Christof E.  |e contributor 
100 1 0 |a Roland, Gunther M.  |e contributor 
100 1 0 |a Stephans, George S. F.  |e contributor 
100 1 0 |a Stockli, Fabian  |e contributor 
100 1 0 |a Velicanu, Dragos Alexandru  |e contributor 
100 1 0 |a Veverka, Jan  |e contributor 
100 1 0 |a Wyslouch, Boleslaw  |e contributor 
100 1 0 |a Yang, M.  |e contributor 
100 1 0 |a Zanetti, Marco  |e contributor 
100 1 0 |a Zhukova, Victoria  |e contributor 
100 1 0 |a Sumorok, Konstanty C.  |e contributor 
700 1 0 |a Barbieri, R.  |e author 
700 1 0 |a Bauer, Gerry P.  |e author 
700 1 0 |a Busza, Wit  |e author 
700 1 0 |a Cali, Ivan Amos  |e author 
700 1 0 |a Chan, M.  |e author 
700 1 0 |a Di Matteo, Leonardo  |e author 
700 1 0 |a Dutta, V.  |e author 
700 1 0 |a Gomez-Ceballos, Guillelmo  |e author 
700 1 0 |a Goncharov, Maxim  |e author 
700 1 0 |a Gulhan, Doga Can  |e author 
700 1 0 |a Klute, Markus  |e author 
700 1 0 |a Lai, Yue Shi  |e author 
700 1 0 |a Lee, Y.-J.  |e author 
700 1 0 |a Levin, A.  |e author 
700 1 0 |a Luckey, P. David, Jr.  |e author 
700 1 0 |a Ma, Teng  |e author 
700 1 0 |a Paus, Christoph M. E.  |e author 
700 1 0 |a Ralph, Duncan Kelley  |e author 
700 1 0 |a Roland, Christof E.  |e author 
700 1 0 |a Roland, Gunther M.  |e author 
700 1 0 |a Stephans, George S. F.  |e author 
700 1 0 |a Stockli, Fabian  |e author 
700 1 0 |a Velicanu, Dragos Alexandru  |e author 
700 1 0 |a Veverka, Jan  |e author 
700 1 0 |a Wyslouch, Boleslaw  |e author 
700 1 0 |a Yang, M.  |e author 
700 1 0 |a Zanetti, Marco  |e author 
700 1 0 |a Zhukova, Victoria  |e author 
700 1 0 |a Sumorok, Konstanty C.  |e author 
245 0 0 |a Search for excited quarks in the γ + jet final state in proton-proton collisions at √s = 8 TeV 
260 |b Elsevier,   |c 2015-01-05T15:28:57Z. 
856 |z Get fulltext  |u http://hdl.handle.net/1721.1/92577 
520 |a A search for excited quarks decaying into the γ+jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7 fb[superscript −1] collected by the CMS experiment in proton-proton collisions at √s = 8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the γ+jetγ+jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners. 
520 |a European Organization for Nuclear Research 
520 |a United States. Dept. of Energy 
520 |a National Science Foundation (U.S.) 
546 |a en_US 
655 7 |a Article 
773 |t Physics Letters B