Isolated leptons and missing P($T$) at HERA
Isolated leptons and missing P($T$) at HERA
复制标题
HERA 的孤立轻子和缺失的 P($T$)
DOI：
10.1088/1742-6596/110/7/072041
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Zeus Collaborations
中科院分区：
文献类型：
--
作者：
D. South;H1 forthe;Zeus Collaborations
The search for events containing isolated leptons (electrons or muons) and missing transverse momentum produced in e±p collisions is performed individually and in a common phase space with the H1 and ZEUS detectors at HERA in the period 1994-2007. The analysed H1+ZEUS data sample corresponds to an integrated luminosity of 0.97 fb-1, and composes of the complete high energy data from the HERA programme. A total of 87 events are observed in the data, compared to a Standard Model (SM) prediction of 92.7 ± 11.2. At large hadronic transverse momentum PTX > 25 GeV in the e+p data, luminosity 0.58 fb-1, 23 data events are observed compared to a SM prediction of 14.6 ± 1.9. Production cross section measurements of events containing isolated leptons and missing transverse momentum and single W production, as well as W polarisation fractions performed by the H1 Collaboration are also presented. The H1 isolated lepton events are also examined in the context of a search for single top production.
