Search for pair-produced massive coloured scalars in four-jet final states with the ATLAS detector in proton–proton collisions at $\sqrt{s} = 7\ \mbox{TeV}

• Published in: The European physical journal. C, Particles and fields Particles and fields, 2013-01, Vol.73 (1)
• Main Authors: Alonso, F., Amor Dos Santos, S. P., Anderson, K. J., Anisenkov, A., Arguin, J-F., Astbury, A., Barberis, D., Beccherle, R., Bechtle, P., Belanger-Champagne, C., Bentvelsen, S., Blumenschein, U., Bourdarios, C., Boyko, I. R., Bremer, J., Budagov, I. A., Carter, J. R., Casado, M. P., Cinca, D., Consorti, V., della Volpe, D., Delmastro, M., Demirkoz, B., Di Girolamo, B., Donini, J., Dressnandt, N., Duda, D., Duxfield, R., Fernando, W., Fiolhais, M. C. N., Gabaldon, C., Gorfine, G., Goussiou, A. G., Gutzwiller, O., Iwanski, W., Jarlskog, G., Jha, M. K., Kaplan, B., Kazama, S., Kleinknecht, K., Kocian, M., Koletsou, I., Kopeliansky, R., Kreiss, S., Lacasta, C., Laisne, E., Leggett, C., Leontsinis, S., Li, B., Liu, J. B., Loch, P., Lohse, T., Luehring, F., Lund, E., March, L., Merritt, H., Middleton, R. P., Möser, N., Morettini, P., Morley, A. K., Morvaj, L., Mountricha, E., Munwes, Y., Nektarijevic, S., Panikashvili, N., Parker, M. A., Parodi, F., Patel, N., Peleganchuk, S. V., Petrolo, E., Phillips, P. W., Prasad, S., Primavera, M., Rauscher, F., Redelbach, A., Rinaldi, L., Roos, L., Rosati, S., Sadykov, R., Schmitt, C., Schoeffel, L., Schorlemmer, A. L. S., Skovpen, K., Smirnova, O., Soni, N., Taylor, W., Ten Kate, H., Turecek, D., van der Ster, D., Vartapetian, A., Varvell, K. E., Ventura, D., Volpi, G., Wang, J., Wielers, M., Winkelmann, S., Wozniak, K. W., Zeitnitz, C., Zibell, A., Zmouchko, V. V.
• Format: Article
• Language: English
• Subjects: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
• ISSN: 1434-6044; 1434-6052

A search for pair-produced massive coloured scalar particles decaying to a four-jet final state is performed by the ATLAS experiment at the LHC in proton–proton collisions at √s = 7 TeV. The analysed data sample corresponds to an integrated luminosity of 4.6 fb-1. No deviation from the Standard Model is observed in the invariant mass spectrum of the two-jet pairs. A limit on the scalar gluon pair production cross section of 70 pb (10 pb) is obtained at the 95 % confidence level for a scalar gluon mass of 150 GeV (350 GeV). Lastly, interpreting these results as mass limits on scalar gluons, masses ranging from 150 GeV to 287 GeV are excluded at the 95 % confidence level.