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Events with an isolated lepton and missing transverse momentum at HERA |
| Reference |
C. Diaconu, presented at ICHEP'06, Summer 2006 |
| Document |
Conference paper
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| Figures |
(1)
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(6)
(7a)
(7b)
(7c)
(7d)
| | Tables |
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| Contact |
D. South, C. Diaconu |
| Abstract |
The search for events containing isolated leptons (electrons or muons) and
missing transverse momentum produced in e+- p collisions is performed with
the H1 detector at HERA in the period 1994-2006. The analysed data sample corresponds
to an integrated luminosity of 341 pb-1, which includes 223 pb-1 of data
from the new HERA II phase. A total of 46 events are observed in the
complete HERA data, compared to a Standard Model (SM) prediction of 43.0+-6.0.
At large hadronic transverse momentum P_T^X >25 GeV, a total of 18 events are
observed compared to a SM prediction of 11.5+-1.8. In this region, 15 events are
observed in the e+p data compared to a SM prediction of 4.6+-0.8, whereas in
the e-p data 3 events are observed compared to a SM prediction of 6.9+-1.0.
A new comparison of the efficiency of the H1 and ZEUS experiments to detect events
containing isolated electrons or muons and missing transverse momentum is also presented. |
| Comments | Internal analysis webpage
Update January 2007 using 100 pb-1 of HERA II e+p data collected in 2006-07
Figures (1) (2) (3) (4) (5) (6) (7) (8a) (8b) (8c) (8d) (9a) (9b) (9c) (9d) (10a) (10b) (10c) (10d) |
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