<html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> Dear RIVET developers, It was brought to the LHCb module (LHCB_2013_I1218996) author's attention that there is a small bug in the translation of the analysis module code from RIVET 1.x original code to the RIVET 2.x compatible code which is released in version 2.3.0 of the library. Line 74 of the .cc file reads: const double y = p.absrap(); ///< Double analysis efficiency with a "two-sided LHCb" while the original code was using rapidity() and a "single sided LHCb". After a short chat with the module developer (in CC) we've agreed that this change is fine increasing the generator efficiency, but it must be taken into account in the normalization by introducing a 1/2 factor (i.e. divide the scale_factor by 2 in line 106). Please, do apply this correction in a future release of the RIVET library. Thank you in advance. Best regards, Alex Grecu <div class="moz-signature">-- LHCb Experiment Horia Hulubei National R&D Institute for Physics and Nuclear Engineering (IFIN-HH) @CERN ======================== Office: 11/1-014 Phone: +41 22 76 79058 Postbox: F26500 @IFIN-HH ======================== Bucharest-Magurele, 408 Atomistilor, DFT bld, office 220 (2nd floor), Phone: +4(0) 21 404 62 48; ext. 3404 Skype name: alex.t.grecu</div> </body> </html>