HAL : in2p3-00273893, version 1
 arXiv : 0803.4264
 Search for Hadronic Decays of W and Z Bosons in Photon Events in ppbar Collisions at s**(1/2)=1.96 GeV
 CDF Collaboration(s)
 (2008)
 We report on a search for the process $p\bar{p}\to \gamma+W/Z$ with $W/Z\to q\bar{q}$ in events containing two jets and a photon at the center-of-mass energy $\sqrt{s}=1.96$ TeV, using 184 pb$^{-1}$ of data collected by the CDF II detector. A neural network event selection has been developed to optimize the rejection of the large QCD production background; it is shown that this method gives a significant improvement in both signal-to-noise ratio and signal sensitivity, as compared with an event selection based on conventional cuts. An upper limit is presented for the $\gamma+W/Z$ production cross section with the $W$ and $Z$ decaying hadronically.
 Thème(s) : Physique/Physique des Hautes Energies - Expérience
 Lien vers le texte intégral : http://fr.arXiv.org/abs/0803.4264
 in2p3-00273893, version 1 http://hal.in2p3.fr/in2p3-00273893 oai:hal.in2p3.fr:in2p3-00273893 Contributeur : Swarna Bassava <> Soumis le : Vendredi 18 Avril 2008, 09:09:08 Dernière modification le : Vendredi 18 Avril 2008, 09:47:01