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None Re: Strange reaction in the LHEP_BIC_HP 

Forum: Hadronic Processes
Re: None Strange reaction in the LHEP_BIC_HP (Hidetoshi Ohshita)
Re: None Re: Strange reaction in the LHEP_BIC_HP (Vladimir IVANTCHENKO )
Re: None Re: Strange reaction in the LHEP_BIC_HP (michel maire)
Re: None Re: Strange reaction in the LHEP_BIC_HP (Vladimir IVANTCHENKO )
Date: 26 Apr, 2007
From: Hidetoshi Ohshita <ohshita@azusa.shinshu-u.ac.jp>

Dear Vladimir,

Thank you for the reply.

For the sake of the check of the production threshold of a 100 keV, I retried the run in the same conditions.

As the result after 10 times or so of "run/beamOn 1", I obtained the information below

************************************************************************************************************** ### Run 10 start. Start Run processing.

---> Begin of event: 0

--------- Ranecu engine status ---------
 Initial seed (index) = 0
 Current couple of seeds = 1354651583, 584961195
----------------------------------------
Step#      X         Y         Z        KineE    dEStep   StepLeng  TrakLeng    Volume     Process
    0     -9 cm      0 fm      0 fm    100 MeV     0 eV      0 fm      0 fm        World    initStep
    1   -7.5 cm      0 fm      0 fm    100 MeV     0 eV    1.5 cm    1.5 cm        World  Transportation
    2   -6.5 cm      0 fm      0 fm    100 MeV     0 eV      1 cm    2.5 cm         Lead  Transportation
    3     -6 cm      0 fm      0 fm    100 MeV     0 eV      5 mm      3 cm         Lead  Transportation
    4     -5 cm      0 fm      0 fm    100 MeV     0 eV      1 cm      4 cm         Lead  Transportation
    5   -4.5 cm      0 fm      0 fm    100 MeV     0 eV      5 mm    4.5 cm         Lead  Transportation
    6  -3.62 cm      0 fm      0 fm   99.9 MeV   123 keV  8.82 mm   5.38 cm         Lead    hElastic
    7   -3.5 cm   -448 um    451 um   99.9 MeV     0 eV   1.34 mm   5.52 cm         Lead  Transportation
    8     -3 cm  -2.35 mm   2.36 mm   99.9 MeV     0 eV   5.68 mm   6.08 cm         Lead  Transportation
    9     -2 cm  -6.14 mm   6.18 mm   99.9 MeV     0 eV   1.14 cm   7.22 cm         Lead  Transportation
   10   -1.5 cm  -8.04 mm   8.09 mm   99.9 MeV     0 eV   5.68 mm   7.79 cm         Lead  Transportation
   11     -5 mm  -1.18 cm   1.19 cm   99.9 MeV     0 eV   1.14 cm   8.92 cm         Lead  Transportation
   12 -0.000307 fm  -1.37 cm   1.38 cm   99.9 MeV     0 eV   5.68 mm   9.49 cm         Lead  Transportation
   13      1 cm  -1.75 cm   1.76 cm   99.9 MeV     0 eV   1.14 cm   10.6 cm         Lead  Transportation
   14    1.5 cm  -1.94 cm   1.96 cm   99.9 MeV     0 eV   5.68 mm   11.2 cm         Lead  Transportation
   15    2.5 cm  -2.32 cm   2.34 cm   99.9 MeV     0 eV   1.14 cm   12.3 cm         Lead  Transportation
   16      3 cm  -2.51 cm   2.53 cm   99.9 MeV     0 eV   5.68 mm   12.9 cm         Lead  Transportation
   17   3.31 cm  -2.63 cm   2.65 cm   99.9 MeV  23.8 keV  3.51 mm   13.3 cm         Lead    hElastic
   18      4 cm  -2.81 cm   3.07 cm   99.9 MeV     0 eV   8.33 mm   14.1 cm         Lead  Transportation
   19   4.12 cm  -2.85 cm   3.15 cm   99.9 MeV  2.12 keV  1.41 mm   14.2 cm         Lead    hElastic
   20    4.5 cm  -2.95 cm   3.42 cm   99.9 MeV     0 eV   4.83 mm   14.7 cm         Lead  Transportation
   21    5.5 cm  -3.23 cm   4.13 cm   99.9 MeV     0 eV   1.26 cm     16 cm         Lead  Transportation
   22      6 cm  -3.37 cm   4.49 cm   99.9 MeV     0 eV    6.3 mm   16.6 cm         Lead  Transportation
   23   6.71 cm  -3.57 cm      5 cm   99.9 MeV     0 eV   8.97 mm   17.5 cm         Lead  Transportation
   24   8.11 cm  -3.97 cm      6 cm   99.9 MeV     0 eV   1.76 cm   19.3 cm   OutOfWorld  Transportation
---> End of event: 0
   Absorber: total energy: 146.44852 keV       total track length:       0 fm
        Gap: total energy: 2.1242919 keV       total track length:       0 fm
Run terminated.
Run Summary
  Number of events processed : 1
  User=0s Real=0.13s Sys=0s

--------------------End of Run------------------------------

 mean Energy in Absorber : 146.44852 keV +- 0 eV
 mean Energy in Gap      : 2.1242919 keV +- 1.5987458e-05 eV

 mean trackLength in Absorber : 0 fm  +- 0 fm
 mean trackLength in Gap      : 0 fm  +- 0 fm
------------------------------------------------------------

************************************************************************************************************

The incident neutron consumes more than 100 keV in the elastic scattering (=Step# 6).

But the event has no secondary particle. What does it mean ?

Is the production threshold of a 100 keV available in the applied region of the LElastic model ?

How is that in the case of the incident neutron energy of a 1 MeV ?

Regards,

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1 None: Re: Strange reaction in the LHEP_BIC_HP   (Vladimir IVANTCHENKO - 29 Apr, 2007)
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