[Rivet] ATLAS-CONF-2011-038 data histograms

James Monk jmonk at hep.ucl.ac.uk
Tue Sep 13 16:04:05 BST 2011


Hi Steffen,

My strategy was always to keep the separate histograms of the vetoed and inclusive distributions, which are simple event counts that can be added across many files.  However, I see that in the Rivet trunk version it deliberately deletes the separate event counts and only stores the final result, e.g. by destroying the histogram here:

	http://projects.hepforge.org/rivet/trac/browser/trunk/src/Analyses/ATLAS_2011_S9126244.cc#L339

So maybe the best thing to do would be not to delete the event count histos (even though they are not part of the published result).  Maybe someone on the Rivet mailing list has a better idea - the problem of merging many subjobs is quite common I think.  In this case the analysis requires an extremely large number of events, which can only really be accomplished by many sub jobs.

cheers,

James



On 13 Sep 2011, at 15:44, Steffen Schumann wrote:

> 
> Hi Andy,
> 
> I am currently looking into your analysis with Rivet. I am experiencing a difficulty and kindly wanted to ask if you (or maybe James a one of the Rivet maintainers) happen to a have solution for that at hand.
> 
> Due to a fixed WALLTIME for jobs I am running on our local cluster I can basically only produce sample of 100k events size. This doesn't give me good statistics in the high pT or dY  bins however. I am forced to combine serval (hundreds) of rivet aida output files to get decent statistics. My problem is that a simple add and divide script doesn't do the job as the is no realy bookkeeping of event numbers or bin entries in Rivet. Accordingly I can't really trust what I get from the combined runs for bins that are only sparsely filled.
> 
> Do you happen do have an advanced script that can do such a combination of several runs in the correct manner or alternatively do you know a strategy how to do it correctly?
> 
> Thanks for your kind help.
> 
> Cheers,
> Steffen
> 
> 
> 
> Quoting Andrew Pilkington <andrew.pilkington at cern.ch>:
> 
>> Dear Steffen,
>> 
>> The code is in the trunk version of Rivet at: http://projects.hepforge.org/rivet/trac/changeset/3319
>> 
>> I have cc'd James Monk into this chain. As a Rivet author he probably  is the best person to tell you how to get this version and if any  manipulation is needed.
>> 
>> Cheers
>> 
>> Andy
>> 
>> On 1 Sep 2011, at 13:13, Steffen Schumann wrote:
>> 
>>> 
>>> Dear Andrew, Dear Mario,
>>> 
>>> after moving from Heidelberg to Goettingen this summer I am back in  business now. I wanted to have a look at the Rivet implementation of  your analysis. However, neither in the Rivet online documentation of  standard & new analyses nor in the Rivet-1.6.0 source code I could  find the corresponding routines. Could you point me to the analysis  code please and maybe give me some instructions in case I need to  manipulate Rivet?
>>> 
>>> Cheers,
>>> Steffen
>>> 
>>> 
>>> Quoting Andrew Pilkington <andrew.pilkington at cern.ch>:
>>> 
>>>> Dear Steffen,
>>>> 
>>>> I'm re-contacting you regarding the jet veto data that you  expressed  an interest in a couple of months ago.
>>>> 
>>>> I'm extremely happy to say that our paper is now available and   submitted to arXiv/JHEP. The ATLAS public version is here: https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2011-03/   . The data tables, which will be sent to HEPDATA this weekend,  have  been validated and are attached to this mail. Feel free to  ask any  questions if you would like some more information.
>>>> 
>>>> A Rivet routine is being validated and should be available next week.
>>>> 
>>>> Cheers
>>>> 
>>>> Andy and Mario
>>>> 
>>>> 
>>>> 
>>>> On 29 Mar 2011, at 13:50, Steffen Schumann wrote:
>>>> 
>>>>> 
>>>>> Hi Mario,
>>>>> 
>>>>> thanks for your reply. It's a pity that you are not allowed to  share  the data shown in conf notes -- in particular as sometimes  the time  until measurements finally get published can be quite  long. We will  check hep-ex very carefully the next weeks and look  forward seeing  the publication.
>>>>> 
>>>>> Thanks for your help.
>>>>> 
>>>>> All the best,
>>>>> Steffen
>>>>> 
>>>>> Quoting Mario Campanelli <Mario.Campanelli at hep.ucl.ac.uk>:
>>>>> 
>>>>>> Hi, I am sorry to reply only now, but we have been investigating   the issue
>>>>>> against the strict policy rules of Atlas.
>>>>>> I have a good and a bad news.
>>>>>> The bad news is that we are not allowed to send around even   approximate
>>>>>> points, even from a conference note, even for a strictly  personal  use.
>>>>>> So, I am sorry but we can't provide you with these values.
>>>>>> The good news is that we are planning to publish these results  very  soon,
>>>>>> then all values will be published, and made available on Rivet.
>>>>>> So, just a few more weeks of patience.
>>>>>> sorry...
>>>>>> 
>>>>>> Mario
>>>>>> 
>>>>>> 
>>>>>>> Dear Mario,
>>>>>>> 
>>>>>>> we were told by some of your Atlas colleagues that you are the   person
>>>>>>> in charge of the recent jet veto study in dijet production at  Atlas.
>>>>>>> It's a really nice measurement with quite interesting results  when  it
>>>>>>> comes to the comparison with the different QCD simulation tools.
>>>>>>> 
>>>>>>> The two of us we are studying this channel as a preparation for a
>>>>>>> theoretical jet veto analysis in Higgs production. We are thereby
>>>>>>> focusing on the predictions from the ME+PS formalism as   implemented in
>>>>>>> the Sherpa generator. We were already comparing against your   previous
>>>>>>> results presented in ATLAS-CONF-2010-085 and obtained a quite nice
>>>>>>> agreement with your data. However, we had to read of the data  from  the
>>>>>>> plots using some Java based tool, quite cumbersome.
>>>>>>> 
>>>>>>> Now we are eager to compare against your higher statistics and   various
>>>>>>> sliced versions of the gap fraction and averaged jet multis in  the  the
>>>>>>> gaps. We would like to ask you if there is the possibility to  get  the
>>>>>>> histograms underlying the Atlas data for the variety of plots you
>>>>>>> present in the note?
>>>>>>> 
>>>>>>> Let us ensure you that right now this is solely for internal  use  only
>>>>>>> and we are not planing to present this to the outside world. If we
>>>>>>> would like to do so at a later stage we would of course contact  you
>>>>>>> before and ask for your permission.
>>>>>>> 
>>>>>>> Looking forward hearing back from you.
>>>>>>> 
>>>>>>> All the best,
>>>>>>> Steffen & Erik
>>>>>>> 
>>>>>>> --
>>>>>>> Steffen Schumann
>>>>>>> Institute for Theoretical Physics     s.schumann at thphys.uni-heidelberg.de
>>>>>>> Heidelberg University
>>>>>>> Philosophenweg 16                     phone +49 6221 549424
>>>>>>> 69120 Heidelberg                      fax   +49 6221 549333
>>>>>>> Germany
>>>>>>> 
>>>>>>> 
>>>>>>> ----------------------------------------------------------------
>>>>>>> This message was sent using IMP, the Internet Messaging Program.
>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> -- 
>>>>> Steffen Schumann
>>>>> Institute for Theoretical Physics     s.schumann at thphys.uni-heidelberg.de
>>>>> Heidelberg University
>>>>> Philosophenweg 16                     phone +49 6221 549424
>>>>> 69120 Heidelberg                      fax   +49 6221 549333
>>>>> Germany
>>>>> 
>>>>> 
>>>>> ----------------------------------------------------------------
>>>>> This message was sent using IMP, the Internet Messaging Program.
>>>>> 
>>>> 
>>>> +++++++++++++++++++++++++
>>>> 
>>>> Andy Pilkington
>>>> IPPP Durham and Manchester
>>>> 
>>>> +++++++++++++++++++++++++
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>> 
>>> 
>>> 
>>> -- 
>>> Steffen Schumann
>>> Institute for Theoretical Physics     s.schumann at thphys.uni-heidelberg.de
>>> Heidelberg University
>>> Philosophenweg 16                     phone +49 6221 549424
>>> 69120 Heidelberg                      fax   +49 6221 549333
>>> Germany
>>> 
>>> 
>> 
>> +++++++++++++++++++++++++
>> 
>> Andy Pilkington
>> IPPP Durham and Manchester
>> 
>> +++++++++++++++++++++++++
>> 
>> 
>> 
>> 
>> 
> 
> 
> 
> -- 
> Steffen Schumann
> Institute for Theoretical Physics     s.schumann at thphys.uni-heidelberg.de
> Heidelberg University
> Philosophenweg 16                     phone +49 6221 549424
> 69120 Heidelberg                      fax   +49 6221 549333
> Germany
> 
> 
> <d13-x01-y02.pdf>



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