Hong, Ziqing (2014) On measuring the leptonic forward-backward asymmetry at the Tevatron and recent results from CDF. Il nuovo cimento C, 37 (6). pp. 229-235. ISSN 1826-9885
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Abstract
The larger-than-expected forward-backward asymmetry of the topquark pairs produced in proton-antiproton collisions is suggestive of new physics. The forward-backward asymmetry of the charged leptons from the cascade decay of top-quark pairs serve as an complementary test for evidence for or against new physics. We provide a detailed study of the methodology used to measure the leptonic asymmetry at CDF, and measure the leptonic asymmetry in leptonic top quark pair decays, as well as the CDF combination of the leptonic asymmetry. The CDF leptonic asymmetry combination shows a 2 standard-deviation larger value than the next–to–leading-order standard model expectation.
| Item Type: | Article |
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| Uncontrolled Keywords: | Top quarks ; Charge conjugation, parity, time reversal, and other discrete symmetries ; Experimental tests |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 20 May 2020 13:06 |
| Last Modified: | 20 May 2020 13:06 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18820 |
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