期刊
PHYSICS LETTERS B
卷 704, 期 5, 页码 403-410出版社
ELSEVIER
DOI: 10.1016/j.physletb.2011.09.046
关键词
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资金
- DOE
- NSF (USA)
- CEA
- CNRS/IN2P3 (France)
- FASI
- Rosatom
- RFBR (Russia)
- CNPq
- FAPERJ
- FAPESP
- FUNDUNESP (Brazil)
- DAE
- DST (India)
- Colciencias (Colombia)
- CONACyT (Mexico)
- KRF
- KOSEF (Korea)
- CONICET
- UBACyT (Argentina)
- FOM (The Netherlands)
- STFC
- Royal Society (United Kingdom)
- MSMT
- GACR (Czech Republic)
- CRC
- NSERC (Canada)
- BMBF
- DFG (Germany)
- SFI (Ireland)
- Swedish Research Council (Sweden)
- CAS
- CNSF (China)
- Science and Technology Facilities Council [PP/D004284/1, ST/F00754X/1, ST/I505756/1, ST/H00095X/2, PP/E000487/1, ST/J501074/1, ST/H00095X/1, ST/F007418/1] Funding Source: researchfish
- STFC [ST/I505756/1, ST/H00095X/2, ST/J501074/1, ST/H00095X/1, ST/F007418/1, ST/F00754X/1, PP/E000487/1] Funding Source: UKRI
- ICREA Funding Source: Custom
We present a measurement of the a production cross section sigma((u) over bar) in p (p) over bar collisions at root s = 1.96 TeV using 5.4 fb(-1) of integrated luminosity collected with the D0 detector. We consider final states with at least two jets and two leptons (ee, e mu, mu mu), and events with one jet for the e mu final state as well. The measured cross section is sigma((u) over bar) = 7.36(-0.79)(+0.90)(stat + syst) pb. This result combined with the cross section measurement in the lepton + jets final state yields sigma((u) over bar) = 7.56(-0.56)(+0.63)(stat + syst) pb, which agrees with the standard model expectation. The relative precision of 8% of this measurement is comparable to the precision of the latest theoretical calculations. (C) 2011 Elsevier B.V. All rights reserved.
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