Aad, G. and Abajyan, T. and Abbott, B. and Abdallah, J. and Khalek, S. A. and Abdinov, O. and Aben, R. and Abi, B. and Abolins, M. and AbouZeid, O. S. and Abramowicz, H. and Abreu, H. and Abulaiti, Y. and Acharya, B. S. and Adamczyk, L. and Adams, D. L. and Addy, T. N. and Adelman, J. and Adomeit, S. and Adye, T. and Aefsky, S. and Agatonovic-Jovin, T. and Aguilar-Saavedra, J. A. and Agustoni, M. and Ahlen, S. P. and Ahmad, A. and Ahsan, M. and Aielli, G. and Akesson, T. P. A. and Akimoto, G. and Krasznahorkay, Attila and Nagai, Yoshikazu and Pásztor, Gabriella and Tóth, József (2013) Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS (10). ISSN 1126-6708
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Abstract
The results of a search for pair production of supersymmetric partners of the Standard Model third- generation quarks are reported. This search uses 20.1 fb−1 of pp collisions at √s = 8 TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squarks (˜b1 and ˜t1 respectively) are searched for in a final state with large missing transverse momentum and two jets identified as originating from b-quarks. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the visible cross section for processes beyond the Standard Model. Exclusion limits at the 95% confidence level on the masses of the third-generation squarks are derived in phenomenological supersymmetric R-parity-conserving models in which either the bottom or the top squark is the lightest squark. The ˜b1 is assumed to decay via ˜b1 → b ˜χ0 1 and the ˜t1 via ˜t1 → b ˜χ± 1 , with undetectable products of the subsequent decay of the ˜χ± 1 due to the small mass splitting between the ˜χ± 1 and the ˜χ0 1.
Item Type: | Article |
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Subjects: | Q Science / természettudomány > QC Physics / fizika |
SWORD Depositor: | MTMT SWORD |
Depositing User: | MTMT SWORD |
Date Deposited: | 09 Aug 2024 09:34 |
Last Modified: | 09 Aug 2024 09:34 |
URI: | https://real.mtak.hu/id/eprint/202227 |
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