27 February 2017 to 3 March 2017
Budker Institute of Nuclear Physics
Asia/Novosibirsk timezone

The geometric alignment of the CMD-3 endcap electromagnetic calorimeter using events of two-quantum annihilation

28 Feb 2017, 17:00
Budker Institute of Nuclear Physics

Budker Institute of Nuclear Physics

11, akademika Lavrentieva prospect, Novosibirsk, Russia
Board: 33
Poster Calorimetry Posters


Dr Vassili Kazanin (Budker INP)


Since 2010 the electromagnetic endcap calorimeter based on BGO crystals is taking part in experiments as one of the system of CMD-3 detector. The spacial resolution is one of crucial parameters of the calorimeter. The inaccurate knowledge of real calorimeter position can limit the resolution. In this work the alignment of the center of the calorimeter with respect to the tracking system of the CMD-3 detector has been performed using events of two-quantium annihilation. The alignment technique that has been used to determine the real position of the calorimeter is described. Finally, the improvement in spacial resolution of the calorimeter after application the correction on the real calorimeter position is shown.

Primary author

Dr Vassili Kazanin (Budker INP)


Mr Aleksander Timofeev (Budker INP) Anastasiya Kuzmenko (Budker Institute of Nuclear Physics) Dr Dmitry Grigoriev (Budker Institute of Nuclear Physics) Mr Ravel Akhmetshin (Budker Institute of Nuclear Physics)

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