[Herwig-announce] Herwig++ UE and MB tunes withdrawn

[David Grellscheid]

Dear Herwig++ users,

Unfortunately we have discovered major problems with the MPI tunes
LHC-MU900-1, LHC-UE7-1, LHC-UE-EE-*-1.in and ColourRec.LEPtune
proposed on our wiki page

   http://projects.hepforge.org/herwig/trac/wiki/MB_UE_tunes

They are seriously overestimating the production of strange hadrons. The
b-fragmentation function is also not described properly.

We are working on this issue and try to find a solution to this as
quickly as possible.

Until further notice we _discourage the use of these MB and UE tunes_
for production runs.

The default setup of Herwig++ 2.5.0 works fine and is _not affected_ by
this issue.

We apologize for any inconvenience this may cause you.

   The Herwig++ authors