<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div><div>Dear all, </div><div>I'm running a rivet analysis on hepmc files produced with aMC@NLO and showered with Herwig++; I need to retrieve some extra info written in the lhe original file which are not propagated to the hepmc format. The problem I have is that the hepmc file misses a few events (parton shower failure while running, I guess) and therefore I need to make sure I'm associating the correct lhe event to the hepmc event. </div><div><br></div><div>Therefore, I'd like to retrieve some special event info from the hepmc event header; in particular I've the impression that the pdfScale of the event might be useful ... </div><div><br></div><div>In my hepmc file this is the 4th word in the Event header row: </div><div><br></div><div><div>E 3 -1 <font class="Apple-style-span" color="#c61800">2.8168094000000000e+01</font> 1.4036799198303040e-01 7.6616229391653504e-03 0 -1 245 10003 10007 0 1 1.0000000000000000e+00</div></div><div><br></div><div>And in the lhe file I can easily find it again in the event header: </div><div><br></div><div><div> <event></div><div> 6 66 0.70177165E-03<font class="Apple-style-span" color="#bd2b00"> 0.28168094E+02</font> 0.79577472E-01 0.11965156E+00</div></div><div><br></div><div>Cross checking the value, might allow to make sure I'm reading the same event from the two files (hepmc and lhe). </div><div><br></div><div>So the question: </div><div>How can I access the PdfInfo object from the hepmc event in the analyze method of a rivet analysis ? </div><div>I've tried to browse the code without much success ... </div><div><br></div><div>Thanks for any suggestion, </div><div>Cheers, </div><div>Stefania </div><div><br></div><br><div> <div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="orphans: 2; text-align: -webkit-auto; text-indent: 0px; widows: 2; -webkit-text-decorations-in-effect: none; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="orphans: 2; text-indent: 0px; widows: 2; -webkit-text-decorations-in-effect: none; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><div><div><div style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div><div><div>Stefania Spagnolo<br>----------------------------------------------------------------------------------------------<br> Sezione INFN di Lecce <br> Dip. di Matematica e Fisica "Ennio DeGiorgi", Univ. del Salento <br> Phone: +39 0832 297439<br> <a href="http://www.dmf.unisalento.it/~spagnolo/">http://www.dmf.unisalento.it/~spagnolo/</a> <br></div> ATLAS experiment <br>----------------------------------------------------------------------------------------------<br></div><br></div></div></div></div></div></div></div></span></div></span></div></div><br class="Apple-interchange-newline"> </div> <br></body></html>