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The kaon identification system in the NA62 experiment at CERN

  • on behalf of the NA62 collaboration(
  • University of Birmingham

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Résumé

The main goal of the NA62 experiment at CERN is to measure the branching ratio of the ultra-rare K+ →π+ vv decay with 10% accuracy. NA62 will use a 750 MHz high-energy un-separated charged hadron beam, with kaons corresponding to ~ 6% of the beam, and a kaon decay-in-flight technique. The positive identification of kaons is performed with a differential Cherenkov detector (CEDAR), filled with Nitrogen gas and placed in the incoming beam. To stand the kaon rate (45 MHz average) and meet the performances required in NA62, the Cherenkov detector has been upgraded (KTAG) with new photon detectors, readout, mechanics and cooling systems. The KTAG provides a fast identification of kaons with an efficiency of at least 95% and precise time information with a resolution below 100 ps. A half-equipped KTAG detector has been commissioned during a technical run at CERN in 2012, while the fully equipped detector, its readout and front-end have been commissioned during a pilot run at CERN in October 2014. The measured time resolution and efficiency are within the required performances.

langue originaleAnglais
titre2015 4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications, ANIMMA 2015
EditeurInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronique)9781479999187
Les DOIs
étatPublié - 1 janv. 2015
Evénement4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications, ANIMMA 2015 - Lisbon, Portugal
Durée: 20 avr. 201524 avr. 2015

Série de publications

Nom2015 4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications, ANIMMA 2015

Une conférence

Une conférence4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications, ANIMMA 2015
Pays/TerritoirePortugal
La villeLisbon
période20/04/1524/04/15

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