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Title: | Search for neutral color-octet weak-triplet scalar particles in proton-proton collisions at √s= 8TeV |
Authors: | The, CMSC Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Asilar, E Bergauer, T Brandstetter, J Brondolin, E Dragicevic, M Erö, J Flechl, M Friedl, M Frühwirth, R Ghete, VM Hartl, C Hörmann, N Hrubec, J Jeitler, M Knünz, V König, A Krammer, M Krätschmer, I Liko, D Matsushita, T Mikulec, I Rabady, D Rahbaran, B Rohringer, H Schieck, J Schöfbeck, R Strauss, J Treberer-Treberspurg, W Waltenberger, W Wulz, CE Mossolov, V Shumeiko, N Suarez Gonzalez, J Alderweireldt, S Cornelis, T De Wolf, EA Janssen, X Knutsson, A Lauwers, J Luyckx, S Ochesanu, S Rougny, R Van De Klundert, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Van Spilbeeck, A Abu Zeid, S Blekman, F D Hondt, J Daci, N De Bruyn, I Deroover, K Heracleous, N Keaveney, J Lowette, S Moreels, L Olbrechts, A Python, Q Strom, D Tavernier, S Van Doninck, W Van Mulders, P Van Onsem, GP Van Parijs, I Barria, P Caillol, C Clerbaux, B De Lentdecker, G Delannoy, H Dobur, D Fasanella, G Favart, L Gay, APR Grebenyuk, A Léonard, A Mohammadi, A Perniè, L Randleconde, A Reis, T Seva, T Thomas, L Vander Velde, C Vanlaer, P Wang, J Zenoni, F Zhang, F Beernaert, K |
Keywords: | Exotics;Hadron-Hadron Scattering |
Issue Date: | 2015 |
Publisher: | Springer Berlin Heidelberg |
Citation: | Journal of High Energy Physics, 2015: 201, (2015) |
Abstract: | A search for pair production of neutral color-octet weak-triplet scalar particles (Θ0) is performed in processes where one Θ0 decays to a pair of b quark jets and the other to a Z boson plus a jet, with the Z boson decaying to a pair of electrons or muons. The search is performed with data collected by the CMS experiment at the CERN LHC corresponding to an integrated luminosity of 19.7 fb−1 of proton-proton collisions at √s = 8TeV. The number of observed events is found to be in agreement with the standard model predictions. The 95% confidence level upper limit on the product of the cross section and branching fraction is obtained as a function of the Θ0 mass. The 95% confidence level lower bounds on the Θ0 mass are found to be 623 and 426 GeV, for two different octo-triplet theoretical scenarios. These are the first direct experimental bounds on particles predicted by the octo-triplet model. |
URI: | http://link.springer.com/article/10.1007%2FJHEP09%282015%29201 http://bura.brunel.ac.uk/handle/2438/11556 |
DOI: | http://dx.doi.org/10.1007/JHEP09(2015)201 |
ISSN: | 1126-6708 1029-8479 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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