Observation of $Z Z$ production in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV
(2008) Physical Review Letters — Vol. 101 (2008)
Files
0808.pdf
Open Access - Adobe PDF
- 145.29 KB
Details
- Authors
- et. al.
- Abstract
- We present an observation for ZZ -> l+l-l'+l'- (l, l' = e or mu) production in ppbar collisions at a center-of-mass energy of sqrt(s) = 1.96 TeV. Using 1.7 fb-1 of data collected by the D0 experiment at the Fermilab Tevatron Collider, we observe three candidate events with an expected background of 0.14 +0.03 -0.02 events. The significance of this observation is 5.3 standard deviations. The combination of D0 results in this channel, as well as in ZZ -> l+l-nunubar, yields a significance of 5.7 standard deviations and a combined cross section of sigma(ZZ) = 1.60 +/- 0.63 (stat.) +0.16 -0.17 (syst.) pb.
- Affiliations
Citations
Tanasijczuk, A. J., D0, & et al. (2008). Observation of $Z Z$ production in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV. Physical Review Letters, 101. https://doi.org/10.1103/PhysRevLett.101.171803 (Original work published 2008)