Allbrooke, B M M, Asquith, L, Cerri, A, Chavez Barajas, C A, De Santo, A, Salvatore, F, Santoyo Castillo, I, Suruliz, K, Sutton, M R, Vivarelli, I and The ATLAS Collaboration, (2016) Measurement of top quark pair differential cross sections in the dilepton channel in pp collisions at √s=7 and 8 TeV with ATLAS. Physical Review D, 94. 092003. ISSN 1550-7998
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Abstract
Measurements of normalized differential cross sections of top quark pair (tt¯) production are presented as a function of the mass, the transverse momentum and the rapidity of the tt¯ system in proton-proton collisions at center-of-mass energies of √s=7 and 8 TeV. The data set corresponds to an integrated luminosity of 4.6 fb −1 at 7 TeV and 20.2 fb −1 at 8 TeV, recorded with the ATLAS detector at the Large Hadron Collider. Events with top quark pair signatures are selected in the dilepton final state, requiring exactly two charged leptons and at least two jets with at least one of the jets identified as likely to contain a b hadron. The measured distributions are corrected for detector effects and selection efficiency to cross sections at the parton level. The differential cross sections are compared with different Monte Carlo generators and theoretical calculations of tt¯ production. The results are consistent with the majority of predictions in a wide kinematic range.
Item Type: | Article |
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Schools and Departments: | School of Mathematical and Physical Sciences > Physics and Astronomy |
Research Centres and Groups: | Experimental Particle Physics Research Group |
Subjects: | Q Science > QC Physics |
Depositing User: | Richard Chambers |
Date Deposited: | 28 Nov 2016 11:52 |
Last Modified: | 11 Sep 2017 05:33 |
URI: | http://srodev.sussex.ac.uk/id/eprint/65698 |
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📧 Request an updateProject Name | Sussex Project Number | Funder | Funder Ref |
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STFC Consolidated Grant Supplement | G1316 | STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL | ST/M000753/1 |