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Please remove my e-mail address: [log in to unmask] from your mailing list: [log in to unmask] I no longer work on linear collider. Thank you Ming Xie "Johnson, Tony S." wrote: > The fermilab stdhep implementation uses a common block to read events into. > This common block is by default set to contain a maximum of 4000 particles. > The standard StdHEP DIM used by JAS uses this implementation and is thus > limited to reading events with 4000 particles. > > Is it possible that the implementation you are using has been changed to > generate more than 4000 particles per event? It sounds strange since I dont > think we normally get anywhere close to 4000 particles in any of the event > samples we have generated so far. > > If this is really correct we have a second experimental Stdhep DIM, which > does not use the Fermilab code and is thus not restriced to 4000 particles. > I have attached the jar file to this message. Just drop this jar file into > your extensions directory (and possibly delete HepEvt.jar which is the old > DIM). > > Tony > > -----Original Message----- > From: Mike Ronan [mailto:[log in to unmask]] > Sent: Friday, November 10, 2000 3:12 PM > To: tonyj > Cc: lcd-l > Subject: Error in reading Pandora_PythiaV2.1 STDHEP files directly into > JAS > > Tony, > > I've managed to build and Pandora_Pythia on a Solaris box at SLAC w/ > very minor modifications to Masako's instructions. I'm now trying to > read in and analyze the generated events in JAS through the output > STDHEP file, but I get the following exception > > java.lang.ArrayIndexOutOfBoundsException: 4000 > at jasext.hepevt.HepEvent$HepEnumeration.nextParticle > at hep.lcd.util.driver.LCDHepEvent$MCHepParticle.getDaughters > ... > > It happens on 97/100 events that I generated w/ the following > > gen_eetottbar output.dat 100 > output.list > > from the examples. The Pandora_Pythia output summary looks fine (see > below), and STDHEP doesn't complain, i.e. > > ******************************************************** > * STDHEP version 4.07 - July 14, 1999 * > ******************************************************** > > STDXWOPEN WARNING: I/O is initialized for stdhep only > > STDXEND: 513431 words i/o with 10012 efficiency > > Mike > > > The value of the integral is 739.999 pm 11.8396 > and the maximum weight found is 21772.2 > ... > > ====================================== > Welcome to pandora_pythia. > ====================================== > > -------------------------------------- > Cross section = 738.543190 > ... > > Event listing (summary) > > I particle/jet KS KF orig p_x p_y p_z > E m > > 1 !e-! 21 11 0 0.000 0.000 250.000 > 250.000 0.001 > 2 !e+! 21 -11 0 0.000 0.000 -250.000 > 250.000 0.001 > 3 !gamma! 21 22 0 0.000 0.000 0.252 > 0.252 0.000 > 4 !gamma! 21 22 0 0.000 0.000 -0.525 > 0.525 0.000 > 5 !phasespa! 21 83 0 0.021 -0.040 0.240 499.223 > 499.223 > 6 !t! 21 6 5 101.195 130.398 -21.348 242.648 > 176.574 > 7 !tbar! 21 -6 5 -101.195 -130.398 21.621 256.575 > 195.241 > > --------------------------------------------------------------------------- > Name: StdHep.jar > StdHep.jar Type: Java Archive (application/java-archive) > Encoding: BASE64