Welcome to the Belle II wiki pages. Only the Belle II Public WebHome page can be viewed publicly without login. In order to access the Belle II Internal WebHome, users need credentials (account_name/password) to login. Please refer to Belle II User Registration. 

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Dates and Announcements

Your password is valid for 6 month. You will get a series of warning by email, starting 20 days in advance. Please make sure to renew your password in time!

In case of problems please consider the Belle II Registration and Account FAQ first.


The most frequent user issues:

  1. New members: Belle II User Registration
  2. Login: account_name / password (NOT email address)
  3. Expired/lost password: Belle II Registration and Account FAQ
  4. Collaborative services:  Belle II Collaborative Services and Tools

Problems with account or password? b2-helpdesk_AT_belle2.org (NOT uco_AT_desy.de)

In order to become a Belle II author and/or to check your eligibility please refer to the page Belle II Authorship by Leo Piilonen.

2019-02-19 Belle II Indico

In order to make use of the new Belle II Indico Instructions make sure you log in to indico.belle2.org with your DESY credentials (Login with LDAP using your account name). You will then become part of the Indico  Belle II group which allows you to view the agendas.

2018-05-28 Group Pages

We have created a top page Belle II Group Pages under which Belle II communities or groups may set up own pages.

2018-05-25 DESY Data Privacy Policy

As of 25 May 2018 the DESY Data Privacy Policy is mandatory due to regulations of the European Union.

Becoming a Belle II Member and Getting Access to the Belle II Collaborative Services and Tools

In order to gain access to the DESY analysis facility (NAF)  consider Belle II Requesting Additional Resource Access (login).

Collaborative Services

We list here a selection of Belle II Collaborative Services (B2CS) and their URLs for easy access. Please do not ignore the documentation. All services require a login with the DESY credentials (accountname/password), not email address. Also note Belle II Support Contacts.

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