[Blackmax] FW: Running BlackMax at 8 TeV failed

[Marc Cano Bret]

Hi Shaoqi,

Good question. At the moment I don't know as its something I haven't
attempted yet but I will try to come back to you as soon as possible.

Best,

Marc

On 3 March 2015 at 18:25, Shaoqi Hou <shou at crimson.ua.edu> wrote:

> Hi Marc,
>
> How to discard the event? Thank you very much!
>
> Best Wishes
>
> Shaoqi
>
>
> On Tue, Mar 3, 2015 at 12:04 PM, Marc Cano Bret <marc.bret.87 at gmail.com>
> wrote:
>
>> Hi Shaoqi,
>>
>> Discussing with my supervisor, It could well be that its a common problem
>> as sometimes Pythia can refuse to hadronize an event. Ideally we should
>> just discard that event rather than making the whole code stop when it
>> happens.
>>
>> Thanks,
>>
>> Marc
>>
>> On 3 March 2015 at 17:52, Shaoqi Hou <shou at crimson.ua.edu> wrote:
>>
>>> Hi Mr. Marc Cano Bret,
>>>
>>> Thanks for your help! I compiled BlackMax in the all mode. And I use
>>> older version of PYTHIA. pythia-6.4.28.
>>>
>>> Best Wishes
>>>
>>> Shaoqi
>>>
>>>
>>> On Tue, Mar 3, 2015 at 8:55 AM, Marc Cano Bret <marc.bret.87 at gmail.com>
>>> wrote:
>>>
>>>> Dear Shaoqi,
>>>>
>>>> I have been forwarded the email discussion you had with Prof. Issever
>>>> on the BlackMax issue you have encountered. Could you please tell me which
>>>> option are you using to compile BlackMax (BlackMaxOnly, BlackMax or all)
>>>> and the Pythia version you are using? Using the same parameter.txt file you
>>>> sent Prof. Issever I can generate events just fine by compiling in the
>>>> BlackMax mode, so I guess the problem might be with Pythia if you are using
>>>> the all compilation mode.
>>>>
>>>> Best,
>>>>
>>>> Marc
>>>>
>>>> On 3 March 2015 at 14:50, Marc Cano Bret <marc.bret.87 at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi Cigdem,
>>>>>
>>>>> Looking through the output file and the parameter.txt I don't see
>>>>> anything striking. I have run BlackMax myself using his file and don't get
>>>>> any errors. I first ran with the CTEQ PDF and then with the PDF he is using
>>>>> (21000, which is MSTW2008). It is then quite possible that this is a Pythia
>>>>> issue. I normally compile BlackMax with the BlackMaxOnly or BlackMax choice
>>>>> so I haven't encountered this problem. The Pythia version I have in my
>>>>> computer (8.175) is very recent and BlackMax doesnt compile with that one.
>>>>> We should ask which option he is using to compile BlackMax and if he is
>>>>> using the Pythia version mentioned in the README file. I will drop him an
>>>>> email.
>>>>>
>>>>> Best,
>>>>>
>>>>> Marc
>>>>>
>>>>> On 3 March 2015 at 14:18, Cigdem Issever <c.Issever1 at physics.ox.ac.uk>
>>>>> wrote:
>>>>>
>>>>>>  and the outputs
>>>>>>
>>>>>>
>>>>>> ---------------------------------------------------------------------
>>>>>> 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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