Detection of Accelerator-Produced Neutrinos at a Distance of 250 km

Preprint

1 March 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0103001

Abstract

The KEK to Kamioka long-baseline neutrino experiment (K2K) has begun its investigation of neutrino oscillations suggested by atmospheric neutrino observations. Twenty-eight neutrino events have been detected in coincidence with the expected arrival time of the beam in the 22.5 kt fiducial volume of Super--Kamiokande, the far detector at 250 km distance. The expectation is 37.8+3.5-3.8, derived using measurements of neutrino interactions in a near detector and extrapolation using a beam simulation validated by a measurement of pion kinematics after production and focusing. The background is of order 10^-3 events.

Keywords

VALIDATED BY A MEASUREMENT
ACCELERATOR PRODUCED
PRODUCED NEUTRINOS
ARRIVAL TIME
KAMIOKA LONG
ATMOSPHERIC
DETECTION
BEAM
KEK

All Related Versions

Version 1, 2001-03-01, ArXiv
Published version: Physics Letters B, 511 (2-4), 178.

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