Difference between revisions of "Dilepton"

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(generator by Marie Boer and Michel GUIDAL)
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= Introduction =
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= Mailing List =
  
= meeting =
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ee@jlab.org
  
  '''Date''' Every Day 11:30AM
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register at https://mailman.jlab.org/mailman/listinfo/ee
  '''Location''' F227 in general, except 5/11 in L207
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  '''Conference ID''' 392477255
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= Meeting =
  '''Desktop sharing and video''' https://bluejeans.com/392477255
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 +
  '''Date''' Thursday 9:00AM ET
 +
  '''Location''' F228
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  '''Conference ID''' 7572696671
 +
  '''Desktop sharing and video''' https://bluejeans.com/7572696671
 
  (You don't need to call in by phone if your PC has a mic and a speaker,  
 
  (You don't need to call in by phone if your PC has a mic and a speaker,  
 
  but do REMEMBER to turn off mic and speaker to avoid echo if you use phoneline for audio)
 
  but do REMEMBER to turn off mic and speaker to avoid echo if you use phoneline for audio)
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  '''meeting system "bluejeans" howto''' https://hallaweb.jlab.org/wiki/index.php/Bluejeans_howto
 
  '''meeting system "bluejeans" howto''' https://hallaweb.jlab.org/wiki/index.php/Bluejeans_howto
  
= program =
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=== [[ meetings ]] ===  
 
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<br>
[[SoLID_JPsi]]
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[[TCS]]
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[[DDVCS]]
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= emaillist =
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ee@jlab.org
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register at https://mailman.jlab.org/mailman/listinfo/ee
+
 
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= code =
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== generator by Marie Boer and Michel GUIDAL ==
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= Physics Topics =
** 2015
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*** the generator code is at /work/halla/solid/mboer/Generator, see "Readme" file there
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*** output root file from the generator for 15cm LH2 target /volatile/halla/solid/mboer/Generator/
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*** output root file with acceptance from the acceptance code  /volatile/halla/solid/zwzhao/dilepton on disk, /mss/halla/solid/zwzhao/dilepton on tape
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*** plots and table https://userweb.jlab.org/~zwzhao/dilepton/
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** 2016
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*** output root file from the generator /lustre/expphy/work/hallb/clasg10/rafopar/DDVCS/Job_out
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*** output root file with acceptance from the analysis code /home/zwzhao/work_halla/dilepton/generator/
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**** original/DEEPGen_*.root, original file
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**** DDVCS/DEEPGen_*_SoLID_DDVCS_JPsiSetup_muon_3rdFAMD.root, file with acceptance, use entry "accep_3fold_eloutdecaypair" for physics study
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** acceptance codes are in SVN https://jlabsvn.jlab.org/svnroot/solid/evgen/dilepton/, see "readme" file there
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== genTCS ==
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[[ TCS | Timelike Compton Scattering (TCS) ]]
** https://jlabsvn.jlab.org/svnroot/solid/evgen/genTCS
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** BH from quasi-real electron and real photon on proton, home made
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== grape-dilepton  ==
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[[ Jpsi | Near-Threshold J/Ψ production ]]
** http://research.kek.jp/people/tabe/grape
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** BH from electron on proton, used by the experiments at DESY/HERA
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** see details how to run it and analysis result at https://jlabsvn.jlab.org/svnroot/solid/evgen/BH/readme
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== LPAIR ==
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[[ penta | Charmonium pentaquark ]]
** used by the experiments at DESY/HERA
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== Compton2.0 ==
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[[ DDVCS |  Double DVCS ]]
** BH from photoproduction, used by ZEUS
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== GiBUU ==
 
** http://gibuu.hepforge.org
 
(It may work on neutron also)
 
GiBUU does a good job with real photons on a proton (or heavier)
 
target.  It doesn't handle electroproduction as nicely (at least not the
 
last time I asked the Giessen group).
 
It is fairly straight forward to generate events, and there USED to be
 
good examples of input jobcards on the website, but they have been removed
 
recently while they upgrade.  I'd think the best route is to email them
 
directly to get the code and also ask for the example jobcards.
 
  
== hepgen ==
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= Experiments and Letters of Intent =
  
http://project-gpd-full-chain-mc.web.cern.ch/project-gpd-full-chain-mc/hepgen/
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* E12-12-001 "Timelike Compton Scattering and J/ψ photoproduction on the proton in e+e- pair production with CLAS12 at 11 GeV"<br>
 +
Proposal https://www.jlab.org/exp_prog/proposals/12/PR12-12-001.pdf was approved for 120 PAC days in CLAS12 by PAC 39.
  
HEPGEN (Hard Exclusive Production GENerator) is a dedicated Monte Carlo generator of events, which is used for studies of hard exclusive leptoproduction processes at the COMPASS experiment kinematic domain. The studied reactions comprise both single photon production via Deeply Virtual Compton Scattering (DVCS) and Bethe-Heitler (BH) process as well as hard exclusive production of various mesons (HEMP). In addition to exclusive processes, HEPGEN allows also to generate events of single photon or meson production accompanied by the diffractive dissociation of the nucleon, which is one of the main sources of background in analyses of exclusive processes.
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* [[ SoLID_JPsi | E12-12-006 "Near Threshold Electroproduction of J/Ψ at 11 GeV" ]]<br>
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Proposal https://www.jlab.org/exp_prog/proposals/12/PR12-12-006.pdf was approved for 60 PAC days in SoLID by PAC 39.
  
== genev ==
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* E12-12-006A "TCS with circularly polarized beam and unpolarized LH2 target"
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Run group proposal https://www.jlab.org/exp_prog/proposals/15/PR12-12-006A.pdf approved by the SoLID collaboration.
  
<pre>
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* LOI12-15-007 "Timelike Compton Scattering on the transversely polarized proton at 11 GeV"
the event generator that we
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LOI https://www.jlab.org/exp_prog/proposals/15/LOI12-15-007.pdf was submitted to PAC 43.
used in the past for the study of vector meson electroproduction at CLAS(12).
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In this event generator, originally written by our Italian
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colleagues from Genova, there is the possibility
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to generate 2-pion electroproduction.
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You can find the source code of this "genev" event generator
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in the "/u/home/guidal/genev" directory on the JLab machines.
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I haven't compiled this code for ages. The Makefile probably
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needs to be modified/updated.
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I just renamed the original main source file "genev_orig.f" and I replaced
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it by a newer "genev.f", which I modified a few years ago to
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have the event generator working up to 12 GeV JLab energies
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(orginally the code was working only for 6 GeV). I implemented
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this "upgrade" mostly for the rho, omega and phi channels,
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I am not 100% sure that it also applies to non-resonant 2-pion.
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You will have to check.
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The input file is "genev.inp" where you see the list
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of channels available; in particular for 2-pion, you should
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take "15".
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The output of the event generator is in "hbook" format.
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</pre>
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<pre>
 
by following the README, I can compile code close to your original by
 
login ifarml64
 
source /group/clas/builds/64bit/environment64.orig.csh
 
setenv CLAS_LIB /u/group/clas/builds/64bit/NIGHTLY/2010-10-13-r1492/build/lib
 
setenv CERN_ROOT /u/site/cernlib/x86_64_rhel4/2005
 
edit Makefile to replace "-L/usr/lib/gcc/x86_64-redhat-linux/4.1.2/" with "-L/usr/lib/gcc/x86_64-redhat-linux/4.4.7/"
 
make
 
</pre>
 
  
download at https://userweb.jlab.org/~zwzhao/DDVCS/genev_guidal.tgz
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= Software and Analysis tools =
  
some info
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=== generators ===
https://www.ge.infn.it/~batta/genev.html
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https://www.ge.infn.it/~batta/genev/
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other fork?
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List of [[ Dilepton_generator | Dilepton generators ]]
https://clasweb.jlab.org/wiki/index.php/Event_generator
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https://clasweb.jlab.org/wiki/index.php/Genev_clas12
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Latest revision as of 16:26, 2 March 2017

Mailing List

ee@jlab.org

register at https://mailman.jlab.org/mailman/listinfo/ee

Meeting

Date Thursday 9:00AM ET
Location F228
Conference ID 	7572696671
Desktop sharing and video https://bluejeans.com/7572696671
(You don't need to call in by phone if your PC has a mic and a speaker, 
but do REMEMBER to turn off mic and speaker to avoid echo if you use phoneline for audio)
Audio Dial: 18882402560 (US or Canada only) (see all numbers) and enter the Conference ID
meeting system "bluejeans" howto https://hallaweb.jlab.org/wiki/index.php/Bluejeans_howto

meetings


Physics Topics

Timelike Compton Scattering (TCS)

Near-Threshold J/Ψ production

Charmonium pentaquark

Double DVCS


Experiments and Letters of Intent

  • E12-12-001 "Timelike Compton Scattering and J/ψ photoproduction on the proton in e+e- pair production with CLAS12 at 11 GeV"

Proposal https://www.jlab.org/exp_prog/proposals/12/PR12-12-001.pdf was approved for 120 PAC days in CLAS12 by PAC 39.

Proposal https://www.jlab.org/exp_prog/proposals/12/PR12-12-006.pdf was approved for 60 PAC days in SoLID by PAC 39.

  • E12-12-006A "TCS with circularly polarized beam and unpolarized LH2 target"

Run group proposal https://www.jlab.org/exp_prog/proposals/15/PR12-12-006A.pdf approved by the SoLID collaboration.

  • LOI12-15-007 "Timelike Compton Scattering on the transversely polarized proton at 11 GeV"

LOI https://www.jlab.org/exp_prog/proposals/15/LOI12-15-007.pdf was submitted to PAC 43.


Software and Analysis tools

generators

List of Dilepton generators