Real<i>W</i>and<i>Z</i>bosons production at HERA
説明
The production of real W and Z bosons has been studied in ep collisions at HERA. A combined analysis is performed with the data taken with the H1 and ZEUS detectors corresponding to 0.98 fb−1 of integrated luminosity to search for events containing an isolated electron or muon and missing transverse momentum, which is dominated by single W production. The total single W boson production cross section is measured as 1.06 ± 0.16(stat.) ± 0.07(sys.) pb, in agreement with the Standard Model (SM) expectation of 1.26 ± 0.19 pb. The production of Z bosons has been studied in the reaction ep → eZp(∗), where p(∗) stands for a proton or a low-mass nucleon resonance, using a data sample collected with the ZEUS detector amounting to 0.5 fb−1. The Z is measured in the hadronic decay mode. The cross section of the reaction ep → eZp(∗) is measured to be 0.13 ± 0.06(stat.) ± 0.01(syst.) pb, in agreement with the SM prediction of 0.16 pb.
収録刊行物
-
- EPJ Web of Conferences
-
EPJ Web of Conferences 71 00099-, 2014-01-01
EDP Sciences