Electroweak physics: search for zz and zw production in p anti-p collisions at s**(1/2) = 1.96 tev

Acosta, D. ; Collaboration, The CDF

Lawrence Berkeley National Laboratory

关键词: Vectors;    Forecasting;    Luminosity;    43 Particle Accelerators;    Production;   

DOI  :  10.2172/842929
RP-ID  :  LBNL--58143
RP-ID  :  AC03-76SF00098
RP-ID  :  842929

美国|英语

来源: UNT Digital Library

【 摘 要 】

We present a search for ZZ and ZW vector boson pair production in p{bar p} collisions at {radical}s = 1.96 TeV using the leptonic decay channels ZZ {yields} llvv, ZZ {yields} lll'l' and ZW {yields} lll'v. In a data sample corresponding to an integrated luminosity of 194 pb{sup -1} collected with the Collider Detector at Fermilab, 3 candidate events are found with an expected background of 1.0 {+-} 0.2 events. We set a 95% confidence level upper limit of 15.2 pb on the cross section for ZZ plus ZW production, compared to the standard model prediction of 5.0 {+-} 0.4 pb.