Search for massive colored scalars in four-jet final states in proton–proton collisions with the ATLAS detector

A search for pair-produced scalar particles decaying to a four-jet final state is presented. The analysis is performed using an integrated luminosity of 34 pb −1 recorded by the ATLAS detector in 2010. No deviation from the Standard Model is observed. For a scalar mass of 100 GeV (190 GeV) the limit...

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Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2011-12, Vol.71 (12), p.1828
Hauptverfasser:	Abbott, B., Aefsky, S., Ahles, F., Akimoto, G., Antonov, A., Aracena, I., Artoni, G., Barberio, E. L., Bosman, M., Brandenburg, G. W., Buira-Clark, D., Buttar, C. M., Chekanov, S., Chelstowska, M. A., Chepurnov, V. F., Conventi, F., Dawe, E., Ebke, J., Ekelof, T., Fabre, C., Fernando, W., Gabizon, O., Ghez, P., Giorgi, F. M., Giusti, P., Goebel, M., Gonella, L., Grigalashvili, N., Head, S. J., Jia, J., Johnert, S., Jovin, T., Kapliy, A., Kennedy, J., Kharchenko, D., Khoriauli, G., Kim, H., Kirsch, L. E., Kolachev, G. M., Kolesnikov, V., Kourkoumelis, C., Kruker, T., Labarga, L., Laisne, E., Lari, T., Lutz, G., Maccarrone, G., Mann, A., McCarn, A., McLaren, R. A., Meyer, J., Mockett, P., Moeller, V., Moraes, A., Morel, J., Moser, H. G., Neal, H. A., Newman, P. R., Nikiforov, A., Nikolopoulos, K., Nomachi, M., Nuncio-Quiroz, A.-E., Oh, A., Pataraia, S., Perez Codina, E., Perez Reale, V., Petridis, A., Poll, J., Price, M. J., Prokoshin, F., Rahimi, A. M., Rizvi, E., Robinson, J. E. M., Rubinskiy, I., Runge, K., Saraiva, J. G., Schöning, A., Schumacher, J. W., Schune, Ph, Sivoklokov, S. Yu, Slater, M., Smirnova, L. N., Soldevila, U., Solfaroli Camillocci, E., Succurro, A., Taiblum, N., Tanaka, S., Tojo, J., Tsipolitis, G., Viel, S., Vossebeld, J. H., Wheeler-Ellis, S. J., Whitaker, S. P., Willis, W., Wittgen, M., Xaplanteris, L., Yamamoto, S., Yanush, S., Zhong, J., Zhuang, X.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics and Cosmology Confidence intervals Elementary Particles Gluons Hadrons Heavy Ions Letter Luminosity Measurement Science and Instrumentation Nuclear Energy Nuclear Physics Pair production Particle collisions Particle decay Physics Physics and Astronomy Protons Quantum Field Theories Quantum Field Theory Scalars String Theory
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Zusammenfassung:	A search for pair-produced scalar particles decaying to a four-jet final state is presented. The analysis is performed using an integrated luminosity of 34 pb −1 recorded by the ATLAS detector in 2010. No deviation from the Standard Model is observed. For a scalar mass of 100 GeV (190 GeV) the limit on the scalar gluon pair production cross section at 95% confidence level is 1 nb (0.28 nb). When these results are interpreted as mass limits, scalar-gluons (hyperpions) with masses of 100 to 185 GeV (100 to 155 GeV) are excluded at 95% confidence level with the exception of a mass window of width about 5 GeV (15 GeV) around 140 GeV.
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-011-1828-6