J-PARC Project Newsletter Special issue

            24 April 2009

On April 23, 2009, the first beam commissioning of the neutrino beam
line was started. At 19:09(JST), the first neutrino beam production is
confirmed by observing the muons by the muon monitor system installed
at the most downstream of the neutrino beam line of J-PARC.
The neutrino beam will be used to study nature of neutrino masses 
in the T2K experiment.

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Editorial Board:
Masatoshi ARAI (chair): masatoshi.arai@j-parc.jp
Yujiro IKEDA: ikeda.yujiro@jaea.go.jp
Nobuo OUCHI: ouchi.nobuo@jaea.go.jp
Shinya SAWADA: shinya.sawada@kek.jp
Toshifumi TSUKAMOTO: toshifumi.tsukamoto@kek.jp
English Editor: Dick MISCHKE mischke@triumf.ca
Secretary: Chikako KAIBARA kaibara.chikako@jaea.go.jp
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