Search through "Belle II" space

Welcome to the Belle II wiki pages. Only the Belle II Public WebHome page can be viewed anonymously without login. In order to access the Belle II Internal Wiki, users need credentials to login. Please read the instructions in Belle II User Registration. 


Since January 2018 the Belle II Membership Management System (B2MMS) is the source for the Belle II members, authors, and voting lists! The collaboration Email list is exclusively generated from the B2MMS. See also the Belle II Registration FAQ.

Maintenance announcements

Announcements on service unavailibility due to maintenance work are send by email to all ATLASSIAN users well in advance.

Do you have already DESY credentials to login to the Belle II collaborative services? Try to login at the top right. If not, see instructions below.

  • E-mail:    (for questions regarding registration or account)
  • E-mail:    (for questions regarding the wiki/confluence)
  • E-mail:    (for any other question regarding the Belle II collaborative services)

  • Change password exclusively on BEFORE it expires. Never register again!

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

In order to make use of the Belle II collaborative services (B2CS), users must become Belle II members in the Belle II Membership Management System (b2MMS). The request for membership includes requesting login credentials from DESY. They are good for ALL Belle II services at DESY but are completely independent of any KEK account. Please refer to the Belle II User Registration. Also see Belle II Registration Frequently Asked Questions (FAQ) / Trouble Shooting.


Belle II Wiki

The content of the former KEK Belle II Twiki is now in two pages. The publicly viewable Belle II Public WebHome and the restricted Belle II Internal Wiki. The latter is visible to Belle II users only. Please find the login at the top right and use your Belle II account.

If you need technical support on confluence beyond the documentation, please contact the e-mail address



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