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Search for events with tau leptons in ep collisions at HERA |
| Reference |
X. Stella, presented at DIS 2006, Spring 2006 |
| Document |
Conference paper
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| Figures |
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| Contact |
G. Brandt, C. Diaconu |
| Abstract |
A search for the production of tau leptons in ep-collisions
with the H1 detector at HERA is presented. A total integrated
luminosity of 287 pb-1 taken in the years 1994-2005 is analysed,
which includes recent data collected in the period 2003-2005 (HERA-II),
where 51 pb-1 of e+p data and 111 e-p data were taken.
Tau leptons are identified by using an
identification algorithm based on the search for isolated charged
tracks associated to narrow hadronic jets detected in the
calorimeters, a typical signature of the one-prong hadronic tau decay.
In the region where the hadronic system (X) has a transverse
momentum PTX > 25 GeV 3 events are observed in the data where the
Standard Model (SM) expectation is 0.74 +- 0.13 events. |
| Comments | |
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