Measurement of the W+W- production cross section in pp̄ collisions at s=1.96TeV using dilepton events

DØ Collaboration

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Abstract

We present a measurement of the W+W- production cross section using 184pb-1 of pp̄ collisions at a center-of-mass energy of 1.96 TeV collected with the Collider Detector at Fermilab. Using the dilepton decay channel W+W-→ℓ+νℓ-ν̄, where the charged leptons can be either electrons or muons, we find 17 candidate events compared to an expected background of 5.0-0.8+2.2 events. The resulting W+W- production cross-section measurement of σ(pp̄→W+W-)=14.6-5.1+5.8(stat)-3.0+1.8(syst) ±0.9(lum)pb agrees well with the standard model expectation.

Original languageEnglish
Article number211801
JournalPhysical review letters
Volume94
Issue number21
DOIs
Publication statusPublished - 2005 Jun 3

Bibliographical note

Funding Information:
We thank the referee, M. Doi, N. Tominaga, R. Romani, S. Jha, K. Toma, N. Kawanaka, J. F. Beacom, and E. Liang for helpful advice. This work is supported by Grants-in-Aid for Scientific Research of the Japanese Ministry of Education, Culture, Sports, Science, and Technology (18740147; K. I.).

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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