Abazov, V. M. ; Mondal, N. K. ; et., al. (2011) Measurement of the ZZ production cross section in pp̅ collisions at √s=1.96 TeV Physical Review D - Particles, Fields, Gravitation and Cosmology, 84 (1). 011103_1-011103_8. ISSN 1550-7998
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Official URL: http://prd.aps.org/abstract/PRD/v84/i1/e011103
Related URL: http://dx.doi.org/10.1103/PhysRevD.84.011103
Abstract
We present a new measurement of the production cross section σ(pp̅ →ZZ) at a center-of-mass energy √s=1.96 TeV, obtained from the analysis of the four charged lepton final state ℓ+ℓ-ℓ'+ℓ'- (ℓ, ℓ'=e or μ). We observe ten candidate events with an expected background of 0.37±0.13 events. The measured cross section σ(pp̅ →ZZ)=1.26-0.37+0.47(stat)±0.14(syst)pb is in agreement with NLO QCD predictions. This result is combined with a previous result from the ZZ→ℓ+ℓ-νν- channel resulting in a combined cross section of σ(pp̅ →ZZ)=1.40-0.37+0.43(stat)±0.14(syst)pb.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 89976 |
| Deposited On: | 04 May 2012 05:05 |
| Last Modified: | 04 May 2012 05:05 |
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