Search for heavy long-lived multi-charged particles in pp collisions at s=8 TeV using the ATLAS detector

A search for heavy long-lived multi-charged particles is performed using the ATLAS detector at the LHC. Data collected in 2012 at s = 8 TeV from pp collisions corresponding to an integrated luminosity of 20.3 fb - 1 are examined. Particles producing anomalously high ionisation, consistent with long...

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Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2015, Vol.75 (8)
Hauptverfasser:	Anders, G., Andrei, V., Batista, S. J., Bellagamba, L., Beretta, M., Bernard, N. R., Binet, S., Bini, C., Bona, M., Brennan, A. J., Britzger, D., Budagov, I. A., Chen, K., Cheplakov, A., Chwastowski, J. J., Clark, A., Cochran, J., Corso-Radu, A., Davey, W., Davidek, T., De Pedis, D., Delsart, P. A., Denisov, S. P., Dohmae, T., Enari, Y., Etzion, E., Floderus, A., Garay Walls, F. M., Giorgi, F. M., Hall, D., Halladjian, G., Hamilton, S., Hansen, J. D., Heng, Y., Hoecker, A., Hong, T. M., Hostachy, J-Y., Iodice, M., Iturbe Ponce, J. M., Jia, J., Jones, T. J., Kalderon, C. W., Katzy, J., Kim, H., Kluth, S., Knue, A., Kosek, T., Kotwal, A., Krasnopevtsev, D., Kravchenko, A., Kuze, M., Lehan, A., Lin, S. C., Liu, M., Loch, P., Maddocks, H. J., Maeno, T., Maneira, J., Marjanovic, M., Mengarelli, A., Mineev, M., Moa, T., Moritz, S., Nagai, K., Nakano, I., Neal, H. A., Nef, P. D., Nguyen, D. H., Nicolaidou, R., O’Neil, D. C., Odaka, S., Owen, M., Paige, F., Pezoa, R., Pluth, D., Popovic, D. S., Read, A. L., Resconi, S., Røhne, O., Saimpert, M., Scannicchio, D. A., Schamberger, R. D., Schegelsky, V. A., Scifo, E., Scuri, F., Simard, O., Slater, M., Smirnov, Y., Soldatov, E. Yu, Sopko, B., South, D., Sumida, T., Talyshev, A. A., Tas, P., Terada, S., Thompson, E. N., Trischuk, W., Wells, P. S., Zhao, Z., Zhou, N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics and Cosmology Elementary Particles Hadrons Heavy Ions High Energy Physics - Experiment Measurement Science and Instrumentation Nuclear Energy Nuclear Physics Physics Physics and Astronomy PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Quantum Field Theories Quantum Field Theory Regular Article - Experimental Physics String Theory
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Beschreibung
Zusammenfassung:	A search for heavy long-lived multi-charged particles is performed using the ATLAS detector at the LHC. Data collected in 2012 at s = 8 TeV from pp collisions corresponding to an integrated luminosity of 20.3 fb - 1 are examined. Particles producing anomalously high ionisation, consistent with long-lived massive particles with electric charges from \| q \| = 2 e to \| q \| = 6 e are searched for. No signal candidate events are observed, and 95 % confidence level cross-section upper limits are interpreted as lower mass limits for a Drell–Yan production model. The mass limits range between 660 and 785 GeV.
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-015-3534-2