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Time-projection chamber for the PEN experiment |
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| Authors: | V A Baranov M A Baturitskii A Van der Schaaf N P Kravchuk A S Korenchenko S M Korenchenko N A Kuchinskiy P Robmann V V Sidorkin V S Smirnov N V Khomutov S N Shkarovskiy |
| Institution: | 1. Joint Institute for Nuclear Research, Dubna, Russia 3. National Scientific and Educational Centre of Particle and High Energy Physics of the Belarussian State University, Minsk, Russia 2. The University of Zurich, Zurich, Switzerland |
| Abstract: | The PEN collaboration carries out a precision measurement of the ??+ ?? e +?? decay branching ratio at the Paul Scherrer Institute (PSI, Switzerland). A special mini time-projection chamber (mTPC) has been developed for registration of particles in the pion beam. The chamber contains 14 × 10?3 g/cm2 of matter on the particle path. The chamber was successfully used during one-year-long run. Design and characteristics of the mTPC are described. |
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