[Blackmax] Running BlackMax at 8 TeV failed

Shaoqi Hou shou at crimson.ua.edu
Mon Mar 2 16:58:31 GMT 2015


Good afternoon Prof. Issever,

Thanks for your reply! I also changed the pdf. I do not have 200, so I
tried 10550 cteq66, 10042 cteq6l1 and 11000 CT10nlo. BlackMax simulated
10000 events successfully with cteq66 and CT10nlo, but stuck with cteq6l1.
It failed to simulate 20000 events with all of them. It looks to me that
pdf certainly affects BlackMax.

Best wishes

Shaoqi

On Mon, Mar 2, 2015 at 7:48 AM, Cigdem Issever <c.Issever1 at physics.ox.ac.uk>
wrote:

>  Dear Shaoqi,
>
> I am sorry that it took me a bit to come back to you.
>
> I am able to produced 20000 or 10000 events using your parameter file.
>
> I had to use a different PDF because I had difficulties to link LHAPDF
> with my BlackMax. I used 200 for the pdf settings and was able to produce
> events without getting it stuck.
>
> Can you change to a different PDF and see if it is a problem with the
> choice of PDF?
>
> Cigdem
>
>    ---------------------------------------------------------------------
> Cigdem Issever <https://www2.physics.ox.ac.uk/contacts/people/issever>
>
> University of Oxford                    @ CERN office 104/1-C14
> Skype-id: cigdem.issever            Oxford Tel: +44-1865-273337
> ---------------------------------------------------------------------
>      ------------------------------
> *From:* Shaoqi Hou [shou at crimson.ua.edu]
> *Sent:* 25 February 2015 15:57
> *To:* Cigdem Issever
> *Cc:* Email the developers
> *Subject:* Re: [Blackmax] Running BlackMax at 8 TeV failed
>
>    Hi Prof. Issever,
>
> I ran BlackMax with the newest parameter.txt sent to you. BlackMax stalled
> after about 2 min, 1481 events simulated. No more events were simulated
> further. Please download the two attachments. Thank you very much!
>
> Best Wishes
>
> Shaoqi
>
>>   BlackMaxLHArecord.lhe
> <https://docs.google.com/a/crimson.ua.edu/file/d/0B4MDh9xjGUXvanQ3bEVEQWFXLUU/edit?usp=drive_web>
> ​​
>   output.txt
> <https://docs.google.com/a/crimson.ua.edu/file/d/0B4MDh9xjGUXvbHpVNFhQWGxVN0E/edit?usp=drive_web>
>>
>
> On Wed, Feb 25, 2015 at 8:40 AM, Cigdem Issever <
> c.Issever1 at physics.ox.ac.uk> wrote:
>
>>  Can you also send me any output BlackMax produce when you run it with
>> the 8TeV setup?
>>
>> I will try to run BlackMax myself with your settings and see if I can
>> reproduce it.
>>
>> Cigdem
>>
>>    ---------------------------------------------------------------------
>> Cigdem Issever <https://www2.physics.ox.ac.uk/contacts/people/issever>
>>
>> University of Oxford                    @ CERN office 104/1-C14
>> Skype-id: cigdem.issever            Oxford Tel: +44-1865-273337
>> ---------------------------------------------------------------------
>>      ------------------------------
>> *From:* Cigdem Issever
>> *Sent:* 24 February 2015 17:03
>>
>> *To:* shou at crimson.ua.edu; Email the developers
>> *Subject:* RE: [Blackmax] Running BlackMax at 8 TeV failed
>>
>>    I am not sure what BlackMax does if you set the maximum mass to a
>> higher value than the centre of mass energy.
>>
>> Can you try to run blackmax for the COM = 8 TeV with a maximum mass value
>> of 8TeV? and see if you still have this problem?
>>
>> Cigdem
>>
>>    ---------------------------------------------------------------------
>> Cigdem Issever <https://www2.physics.ox.ac.uk/contacts/people/issever>
>>
>> University of Oxford                    @ CERN office 104/1-C14
>> Skype-id: cigdem.issever            Oxford Tel: +44-1865-273337
>> ---------------------------------------------------------------------
>>      ------------------------------
>> *From:* Cigdem Issever
>> *Sent:* 24 February 2015 17:01
>> *To:* shou at crimson.ua.edu; Email the developers
>> *Subject:* RE: [Blackmax] Running BlackMax at 8 TeV failed
>>
>>   Dear Shaoqi,
>>
>> the parameter file you have send is this the the file which causes the
>> problems? I see that the centre of mass energy in this file is set to 9TeV.
>> Can you send me the file which causes the problem? Or are you just changing
>> the centre of mass energy from 9 to 8 TeV in this file and you end up with
>> problems?
>>
>> I just want to make sure that there is not a typo in the parameter file
>> where you set the CoM to 8 TeV.
>>
>> Best
>>   Cigdem
>>
>>    ---------------------------------------------------------------------
>> Cigdem Issever <https://www2.physics.ox.ac.uk/contacts/people/issever>
>>
>> University of Oxford                    @ CERN office 104/1-C14
>> Skype-id: cigdem.issever            Oxford Tel: +44-1865-273337
>> ---------------------------------------------------------------------
>>      ------------------------------
>> *From:* blackmax-bounces at projects.hepforge.org [
>> blackmax-bounces at projects.hepforge.org] on behalf of Shaoqi Hou [
>> shou at crimson.ua.edu]
>> *Sent:* 24 February 2015 16:45
>> *To:* blackmax at projects.hepforge.org
>> *Subject:* [Blackmax] Running BlackMax at 8 TeV failed
>>
>>    To whom it may concern,
>>
>>  I am a graduate student at the University of Alabama. Recently, I tried
>> to run BlackMax to reproduce the results of Fig. 1 published in the paper
>> JHEP 07 (2013) 178. But unfortunately, BlackMax got stuck when the center
>> of mass energy was set to 8 TeV. If the center of mass energy is 14 TeV or
>> 9 TeV, BlackMax runs successfully. The attachment is the parameter file.
>> Please look into this problem. Thank you!
>>
>>  Best wishes
>>
>>  Shaoqi Hou
>>
>>
>
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