Radial tail resolution in the SELEX RICH

Conference · Sat Jan 01 00:00:00 EST 2005 · Nucl.Instrum.Meth.A553:237-241,2005

DOI:https://doi.org/10.1016/j.nima.2005.08.037· OSTI ID:892294

Morelos, A; Mata, J; Cooper, P S; Engelfried, J; Aguilera-Servin, J L

The authors use a 7 Million event data sample of 600 GeV/c single track pion events, where the pion track is reconstructed upstream and downstream of the SELEX RICH. They build the RICH ring radius histogram distribution and count the tail events that fall outside 5{sigma}, giving a fraction of 4 x 10{sup -5} events outside the Gaussian tails. This control of events establishes the ability of using the RICH as velocity spectrometer for high precision searches of the K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} decay like it is planned in the CKM experiment.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 892294
• Report Number(s): FERMILAB-CONF-05-607-CD; TRN: US0605726
• Journal Information: Nucl.Instrum.Meth.A553:237-241,2005, Conference: Presented at 5th International Workshop on Ring Imaging Cherenkov Detectors (RICH 2004), Playa de Carmen, Mexico, 30 Nov - 5 Dec 2004
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
CHERENKOV COUNTERS
DECAY
DISTRIBUTION
PIONS
RESOLUTION
SPECTROMETERS
VELOCITY
Instrumentation