Measurement of the charged kaon mass with the MIPP RICH
by Graf, Nicholas J., Ph.D., INDIANA UNIVERSITY, 2008, 196 pages; 3331260

Abstract:

The currently accepted value of the charged kaon mass is 493.677 ± 0.013 MeV (26 ppm). It is a weighted average of six measurements, most of which use kaonic atom X-ray energy techniques. The two most recent and precise results dominate the average but differ by 122 ppm. Inconsistency in the data set needs to be resolved, preferably using independent techniques. One possibility uses the Cherenkov effect. A measurement of the charged kaon mass using this technique is presented. The data was taken with the Main Injector Particle Production experiment at Fermi National Accelerator Laboratory using a tagged beam of protons, kaons, and pions ranging in momentum from 37 GeV/ c to 63 GeV/c. The measured value is 491.3 ± 1.7 MeV. This is within 1.4σ of the current value. An improvement in precision by a factor of 35 would make this technique competitive for resolving the ambiguity in the X-ray data.
 
AdviserMark Messier
SchoolINDIANA UNIVERSITY
SourceDAI/B 69-11, p. , Dec 2008
Source TypeDissertation
SubjectsParticle physics
Publication Number3331260
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