

Other version: http://www.sciencedirect.com/science/article/pii/S0370269311005041#
![]() |
Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC |
|
Collaboration | With : Abdelalim Aly, Ahmed Aly / Alexandre, Gauthier / Backes, Moritz / Bell, Paul / Bell, William / Berglund, Frida Elina / Blondel, Alain / Bucci, Francesca / Clark, Allan Geoffrey / Dao, Valerio / Efthymiopoulos, Ilias / Ferrere, Didier / Gadomski, Szymon / Garcia Navarro, Jose Enrique / Gaumer, Olivier / Gonzalez Sevilla, Sergio / Goulette, Marc / Hamilton, Andrew / Leger, Annie / Lister, Alison / Macina-Buono, Daniela / Martin Dit Latour, Bertrand / Mikulec, Bettina / Moneta, Lorenzo / Mora Herrera, Maria Clemencia Rosario / Morone, Maria Cristina / Nektarijevic, Snezana / Orellana, Frédérik / Pasztor, Arpad / Pohl, Martin / Robichaud-Veronneau, Andrée / Rosselet, Laurent / Urquijo, Phillip / Wu, Xin | |
Published in | Physics letters. B. 2011, vol. 701, no. 1, p. 1-19 | |
Abstract | Hitherto unobserved long-lived massive particles with electric and/or colour charge are predicted by a range of theories which extend the Standard Model. In this Letter a search is performed at the ATLAS experiment for slow-moving charged particles produced in proton–proton collisions at 7 TeV centre-of-mass energy at the LHC, using a data-set corresponding to an integrated luminosity of 34 pb−1. No deviations from Standard Model expectations are found. This result is interpreted in a framework of supersymmetry models in which coloured sparticles can hadronise into long-lived bound hadronic states, termed R-hadrons, and 95% CL limits are set on the production cross-sections of squarks and gluinos. The influence of R-hadron interactions in matter was studied using a number of different models, and lower mass limits for stable sbottoms and stops are found to be 294 and 309 GeV respectively. The lower mass limit for a stable gluino lies in the range from 562 to 586 GeV depending on the model assumed. Each of these constraints is the most stringent to date. | |
Keywords | Supersymmetry — Long-lived particle — R-hadron — Limit | |
Identifiers | ||
Full text |
![]() ![]() Other version: http://www.sciencedirect.com/science/article/pii/S0370269311005041# |
|
Structures | ||
Citation (ISO format) | ATLAS COLLABORATION. Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC. In: Physics letters. B, 2011, vol. 701, n° 1, p. 1-19. doi: 10.1016/j.physletb.2011.05.010 https://archive-ouverte.unige.ch/unige:41128 |