Measurement of the $WW+WZ$ Production Cross Section Using a Matrix Element Technique in Lepton + Jets Events

Journal Article · Sun Aug 01 00:00:00 EDT 2010 · Submitted to Phys.Rev.D

DOI:https://doi.org/10.1103/PhysRevD.82.112001· OSTI ID:986626

Aaltonen, T; Alvarez Gonzalez, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, J A; Apresyan, A; Arisawa, T

We present a measurement of the WW + WZ production cross section observed in a final state consisting of an identified electron or muon, two jets, and missing transverse energy. The measurement is carried out in a data sample corresponding to up to 4.6 fb{sup -1} of integrated luminosity at {radical}s = 1.96 TeV collected by the CDF II detector. Matrix element calculations are used to separate the diboson signal from the large backgrounds. The WW + WZ cross section is measured to be 17.4 {+-} 3.3 pb, in agreement with standard model predictions. A fit to the dijet invariant mass spectrum yields a compatible cross section measurement.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 986626
• Report Number(s): FERMILAB-PUB-10-334-E; arXiv eprint number arXiv:1008.4404; TRN: US1006393
• Journal Information: Submitted to Phys.Rev.D, Vol. 82, Issue 11; ISSN 1550--7998
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
ELECTRONS
FERMILAB COLLIDER DETECTOR
LEPTONS
LUMINOSITY
MATRIX ELEMENTS
PRODUCTION
STANDARD MODEL
TRANSVERSE ENERGY
Experiment-HEP