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The Timing Counter of the MEG experiment: calibration and performance
- Source :
- Nuclear Physics B - Proceedings Supplements. 215:281-283
- Publication Year :
- 2011
- Publisher :
- Elsevier BV, 2011.
-
Abstract
- The MEG detector is designed to test Lepton Flavor Violation in the $\mu^+\rightarrow e^+\gamma$ decay down to a Branching Ratio of a few $10^{-13}$. The decay topology consists in the coincident emission of a monochromatic photon in direction opposite to a monochromatic positron. A precise measurement of the relative time $t_{e^+\gamma}$ is crucial to suppress the background. The Timing Counter (TC) is designed to precisely measure the time of arrival of the $e^+$ and to provide information to the trigger system. It consists of two sectors up and down stream the decay target, each consisting of two layers. The outer one made of scintillating bars and the inner one of scintillating fibers. Their design criteria and performances are described.<br />Comment: Presented at the 12th Topical Seminar on Innovative Particle and Radiation Detectors (IPRD10) 7 - 10 June 2010, Siena. Accepted by Nuclear Physics B (Proceedings Supplements) (2011)taly
- Subjects :
- Physics
Nuclear and High Energy Physics
Physics - Instrumentation and Detectors
Photon
Branching fraction
High Energy Physics::Phenomenology
Detector
FOS: Physical sciences
Instrumentation and Detectors (physics.ins-det)
Atomic and Molecular Physics, and Optics
High Energy Physics - Experiment
Nuclear physics
High Energy Physics - Experiment (hep-ex)
Time of arrival
Positron
Coincident
Atomic and Molecular Physics
High Energy Physics::Experiment
Monochromatic color
and Optics
Lepton
Subjects
Details
- ISSN :
- 09205632
- Volume :
- 215
- Database :
- OpenAIRE
- Journal :
- Nuclear Physics B - Proceedings Supplements
- Accession number :
- edsair.doi.dedup.....458568f21b6d414581baee9c60c1a597