Measurement of the WW Production Cross Section with Dilepton Final States in pp Collisions at sq root(s)=1.96 TeV and Limits on Anomalous Trilinear Gauge Couplings

• Published in: Physical review letters 2009-11, Vol.103 (19)
• Main Authors: Abazov, V. M., Alexeev, G. D., Kharzheev, Y. N., Malyshev, V. L., Tokmenin, V. V., Vertogradov, L. S., Yatsunenko, Y. A., Abbott, B., Gutierrez, P., Hossain, S., Jain, S., Rominsky, M., Severini, H., Skubic, P., Strauss, M., Abolins, M., Benitez, J. A., Brock, R., Edmunds, D., Hall, I.
• Format: Article
• Language: English
• Subjects: ACCELERATORS; BARYON-BARYON INTERACTIONS; BOSONS; CROSS SECTIONS; CYCLIC ACCELERATORS; DECAY; ELECTRONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMILAB TEVATRON; FERMIONS; HADRON-HADRON INTERACTIONS; INTERACTIONS; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; LEPTONS; MASSLESS PARTICLES; MUONS; NEUTRINOS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE DECAY; PARTICLE INTERACTIONS; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; PROTON-NUCLEON INTERACTIONS; PROTON-PROTON INTERACTIONS; SYNCHROTRONS; TEV RANGE; TEV RANGE 01-10; TWO-DIMENSIONAL CALCULATIONS; W MINUS BOSONS; W PLUS BOSONS
• ISSN: 0031-9007; 1079-7114
• DOI: 10.1103/PHYSREVLETT.103.191801

We provide the most precise measurement of the WW production cross section in pp collisions to date at a center of mass energy of 1.96 TeV, and set limits on the associated trilinear gauge couplings. The WW->lnul{sup '}nu (l, l{sup '}=e, mu) decay channels are analyzed in 1 fb{sup -1} of data collected by the D0 detector at the Fermilab Tevatron Collider. The measured cross section is sigma(pp->WW)=11.5+-2.1(stat+syst)+-0.7(lumi) pb. One- and two-dimensional 95% C.L. limits on trilinear gauge couplings are provided.