The First Bulletin of
The 4th Workshop on "Neutrino Oscillations and their Origin" 

Enclosed please find the announcement of the "International Workshop
on Neutrino Oscillations and their Origin", which will be held at
Ishikawa Kousei-Nenkin Kaikan, Kanazawa, Japan,
on 10th through 14th February, 2003. Please see the following message.
The workshop website will be ready on 22nd of November at

Best Regards,
Yoichiro Suzuki
Chairman of NOON2003
Kamioka observatory, ICRR, Univ. of Tokyo

|| The 4th Workshop on "Neutrino Oscillations and their Origin" ||
|| ---- NOON2003 ---- ||

The 4th International Workshop on Neutrino Oscillations and their Origin
(NOON2003) will be held at Ishikawa Kousei-Nenkin Kaikan, Kanazawa, Japan,
from February 10th to February 14th of 2003. Kanazawa is called as a small
Kyoto which is located about 50km from Kamioka. This is the fourth workshop
of this series. The first one of this series was held at Fuji-Yoshida in
March, 2000, as a local workshop, following the discovery of neutrino
oscillations in atmospheric neutrinos in Super-Kamiokande.

In 2001, the solar neutrino oscillation has been established by the results
from SK together with SNO charged current measurement. And the neutral
current measurement by SNO in the following year has further confirmed the
fact. The KamLAND experiment, which is sensitive to the oscillation parameter
region that the solar neutrino global analyses have obtained, would present
their first result soon. Therefore the first phase of the oscillation studies
would have been completed.

This workshop is therefore a good opportunity to make a global summary of
our current knowledge on the neutrino oscillations and to convey a significant
discussion on the future direction of neutrino oscillation studies and related
subjects for both theoretical and experimental works. Continuation of the
study on the neutrino oscillations by accelerator based experiments may
discover the yet-undiscovered oscillation nu_mu <-> nu_e through theta13 and
this research direction may lead to the future study on CP violation in
lepton sector. Another important direction is to search for the Majorana mass
of neutrinos which will provide qualitatively different information than the
oscillation phenomena. It is a matter of course that the continuation study
on atmospheric and solar neutrinos is important.

As a 4th workshop, we have a stress on the following subjects:
1) Overview of the current status neutrino oscillation experiments
2) Overview of status of the theoretical study of neutrino mixing and mass
3) Future prospects of neutrino oscillations study
4) Study on double beta decay
We further include those subjects:
5) Constraints on the sterile neutrinos from the experimental data
6) mu->e-gamma and lepton flavor violation
7) Proton decays, GUT, leptogenesis
9) Astrophysical neutrinos, neutrinos from supernovae
and other related subjects.

In this workshop, we bring experimentalists and theorists together and discuss
about those subjects.

Date of the workshop
February 10th(Mon.) to 14th(Fri.), 2003

Workshop Site
Workshop site is at the Ishikawa Kousei-Nenkin Kaikan in Kanazawa city, Japan.
The site is near Kenroku-en park, about 15 minutes ride from Kanazawa station.
The nearest airport is Komatsu airport from which you can reach to the Kanzawa
station by one hour ride by bus. More details about the map or the
transportation will be found in the following Web site and in the next
( Japanese contents only )

Registration for the workshop should be done via the workshop home page:
The home page will be on at 22nd of November. The registration fee, which will
be used for refreshments, workshop dinner, proceedings and so on is 20,000
Japanese yen. Please pay registration fee at the workshop site. We only
accept Japanese yen in cash. A block of rooms have been reserved at some
hotels in Kanazawa for foreign participants. Accommodation for the foreign
participants can be done by the workshop home page. For domestic participants,
please arrange your hotel by yourself.

A valid passport is required for entry into Japan. Participants from some
countries will also need a visa. For the participants who need VISA, please
contact us as soon as possible.

Contributed Papers
If you are going to submit a contribution paper, an abstract must be submitted
by Dec. 31, 2002. You can submit your abstract via home page after 22nd of

Local Organizing Committee
Y. Itow (ICRR, Univ. of Tokyo)
Y. Obayashi (ICRR, Univ. of Tokyo)
M. Nakahata (ICRR, Univ. of Tokyo)(scientific secretary)
M. Shiozawa (ICRR, Univ. of Tokyo)
Y. Suzuki (ICRR, Univ. of Tokyo)(chairman)

Scientific Program Comittee
M. Bando (Aichi)
T. Kajino (NAO)
T. Kajita (ICRR, Tokyo)
H. Minakata (Tokyo Metropolitan Univ.)
T. Mori (ICEPP, Tokyo)
M. Nakahata (ICRR, Tokyo)
M. Sakuda (KEK)
H. Shibahashi (Tokyo)
Y. Suzuki (ICRR, Tokyo)
M. Tanimoto (Niigata)
T. Yoshida (KEK)

International Adovisory Comittee
J.N. Bahcall (Princeton)
A. Bettini (GranSasso)
H. Ejiri (Osaka)
E. Fiorini (Milano)
W. Haxton (Washington)
P. Lipari (Roma)
A. McDonald (Queens)
G. Raffelt (Max Plank Munich)
S. Schoenert (Max Plank Heidelberg)
A.Y. Smirnov (Trieste)
P. Vogel (Caltech)
S. Wojicki (Stanford)
T.Yanagida (Tokyo/CERN)
M. Yoshimura (ICRR, Tokyo)

If you have any questions or comments, please send e-mail to the following


The Workshop on "Neutrino Oscillations and their Origin"
Kamioka Observatory, ICRR, Univ. of Tokyo
Higashi-mozumi, Kamioka-cho, Yoshiki-gun, Gifu, Japan, 506-1205
Fax: +81-578-5-2121
(After 22nd of November)


Posted on Nov. 16, 2002