March 2
Professor Kazuo Moriwaki, the vise director of Sokendai Graduate School, gave a talk titled "Looking at a human from a mouse's point of view". The section of DNA structure common to both human and mouse genes was discussed.
March 26-30
The 18th International High Energy Accelerator Conference was held at the Tsukuba International Congress Center. 170 participants actively talked about high luminosity factories, present and future colliders, muon accelerators, new techniques and novel ideas on future accelerators, etc.
April 6
The 3rd International Hanami Party under Cherry Blossoms was attended by around 40 people. Lively discussions went on along with Japanese tea and sweets.
April 6
KEK Restaurant and Cafeteria started to serve authentic non-Japanese food roughly once every two weeks with the help from visitors from outside of Japan. Since then, Fish & Chips, Shepherd's Pie, Thai Green Curry, Mushroom Risotto, Pumpkin Gnocchi, Chili con Carne, Indian Chick pea Curry, Moscow style Cutlet have been served and well appreciated.
May 17
Professor Cecilia Jarlskog visited KEK and gave a talk at KEK Colloquium. The auditorium was filled with audiences who enjoyed her presentation very much.
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May 24-30
The 3rd international workshop on neutrino factories based on the muon storage ring was held at the Tsukuba International Congress Center.
Participants (91 from overseas and 73 from Japan) extensively discussed physics potential and feasibility of neutrino factories. It was a timely workshop, as KEK/Jaeri joint project (see last issue of the KEK News) was approved by then.
June 1
After the 1997 KEK reorganization, changing the KEK logo was talked about. A new KEK Logo was chosen through a design competition and became official as of June 1. (right)
July 10
K2K Collaboration (See KEK News Vol. 2, No.1) announced new results that represent the first significant data on neutrino oscillations. A total of 44 neutrinos from KEK have been identified in the Super-Kamiokande detector where the expected number of events in the absence of neutrino oscillations would be 64, while conservatively estimated error margins is approximately 10%. Thus the K2K results are statistically inconsistent with the no-oscillation hypothesis at about the 97% confidence level. K2K is expected to continue accumulating data through early 2004.
For details, see:
http://neutrino.kek.jp/news//
2001.07.10.News/index-e.html
July 23
The Belle collaboration (see KEK News Vol.2 No.3 1999) reported the observation of large CP violation in the neutral B meson system at the Lepton Photon Conference Symposium in Rome and at the talk in KEK on the same day.
Obtained CP asymmetry parameter established the CP violation with a probability greater than 99.999%. This result confirms the validity of the Kobayashi-Maskawa model for CP violation and is a great step towards further understanding of its mechanism. They will continue taking data for more refinements. Picture on page 10 (bottom) shows members of the Belle collaboration
For details, see:
http://bsunsrv1.kek.jp/bdocs/
sin2phi1_prl2/sin2phi1.html
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