Difference between revisions of "EA Parton propagation and fragmentation"

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[[Category:eA propagation]]
 
[[E-A Working Group | [Back to e-A working group]]]
 
[[E-A Working Group | [Back to e-A working group]]]
  
 
== Goals ==
 
== Goals ==
  
Our goal is to develop a program to explore parton propagation and fragmentation in a cold nucleus at the EIC. We should aim at  
+
Our goal is to develop a program to explore parton propagation and fragmentation in a cold nucleus at the EIC. We  
 +
should aim at  
  
 
* A list of possible measurements
 
* A list of possible measurements
 
* Discussing new ideas and observables
 
* Discussing new ideas and observables
 +
* Develop or adapt existing Monte-Carlo simulations
 
* Perform simulations, and projections for EIC measurements
 
* Perform simulations, and projections for EIC measurements
  
 
For each of our favorite observables, we should try and compare the performance of the JLab and BNL designs, in order to contribute in building the science case leading to the choice of the best one.
 
For each of our favorite observables, we should try and compare the performance of the JLab and BNL designs, in order to contribute in building the science case leading to the choice of the best one.
  
Our initial results will be presented at the Argonne and INT meetings and correspondingly summarized in 2 white papers, see 'Timeline' below.
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Our initial results will be presented at the Argonne and INT meetings and correspondingly summarized in 2 white papers, see [[#Timeline]] below.
  
[[EA propagation - welcome | Welcome!]]
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* [[EA propagation: welcome | '''Welcome!''']]
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* [http://www.jlab.org/~accardi/Docs/Argonne2010/PPF-summary.pdf '''Argonne Summary Report''']
  
  
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** When a result is ready, provide a short write-up with plots and results for general discussion
 
** When a result is ready, provide a short write-up with plots and results for general discussion
  
We will soon set up weekly phone meetings.
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We have set up weekly phone meetings, [[EA propagation: meetings | see here]].
  
  
 
'''Resources'''
 
'''Resources'''
  
* [[EA propagation - tasks | Tasks & subgroups]]
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* [[eA propagation: observables | '''List of observables''']]
  
* [[EA propagation - meetings | (Phone) meetings]]
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* [[EA propagation: meetings | (Phone) meetings]]
  
* [[EA propagation - Monte Carlo | Monte Carlo codes]]
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* [[eA propagation: documents | Documents & Talks]]
  
 
== Machine designs ==
 
  
Our focus should be on the medium-energy EIC (MEIC@JLab or MeRHIC), but it would be useful to evaluate how this program could be extended to a full-energy EIC, and wether the full-energy machine is necessary for our physics program, or this can be completed with the medium-energy machine.
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== Results and Ongoing analyses ==
  
 +
We are currently exploring light flavors, heavy flavors, jets and HBT correlation, with more waiting for to be picked up. Results and ongoing analyses can be accessed through our [[eA propagation: observables |'''observables page''']].
  
I note here the main machine designs currently under consideration for quick reference and to standardize our studies
 
  
'''EIC-I'''  (Medium-energy EIC)
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== Monte Carlo simulations ==
  
* [JLab] <math> E=3+30  \ L=40\times 10^{33} </math>
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We need a range of Monte Carlo simulations of nuclear effects on parton prpagation and fragmentation, which allow us to simulate various phsyical ideas, and produce detailed projections for the various detectors and machines designs. Details on our Monte Carlo efforts can be found following the link below.
* [JLab] <math> E=11+30 \ L=0.4\times 10^{33} </math>
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* [BNL] <math> E=4+100 \ L=0.1\times 10^{33} </math>
+
  
'''EIC-II'''  (Full-energy EIC)
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* [[eA propagation: Monte Carlo | Our Monte Carlo e+A codes ]]
  
* [JLab] <math> E=11+120  \ L=10\times 10^{33} </math>
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* [[Detector_Working_Group | JLab Detector working group]]
* [BNL] <math> E=20+130 \ L=2.8 \times 10^{33} </math>
+
  
However, feel free to explore non-standard scenarios that can optimize the physics output. Examples are
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* [https://wiki.bnl.gov/eic/index.php/Simulations_and_EIC_Computing_How-To BNL generators and detector simulations]
* MEIC optimized in luminosity for 5-7 GeV electrons, with a resulting higher luminosity for the 11 GeV beam
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* A possible doubling of electron energy to, say, 22 GeV with luminosity reduced by apprixmately a factor 10
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* A full-energy EIC @ JLab, with E=22+120
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* A super high-energy eRHIC with E=30+320
+
  
More details can be found [[EA machine designs | here]].  
+
 +
== Machine designs ==
 +
 
 +
Our focus should be on the medium-energy EIC (MEIC@JLab or eRHIC stage 1), but it would be useful to evaluate how this program could be extended to a full-energy EIC, and wether the full-energy machine is necessary for our physics program, or this can be completed with the medium-energy machine. You can find her the [[EIC luminosity | luminosity vs. energy profile of either design can be found]].  
  
 +
Then, we all should consider 2+1 main questions:
  
A question we may want to keep in mind is: will our physics program likely be completed at the EIC-I, or wil it need also the full-energy EIC-II?
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# What physics within your topic of interest can quantitatively be accomplished with the foreseen parameters?
 +
# What physics within your topic of interest could quantitatively be accomplished with a change in the parameter space given, e.g. by a change in energies, a change in luminosity?
 +
# Let's also keep in mind: will your physics likely be exhausted at the medium-energy EIC, or will it need also the full-energy EIC?
  
  
 
'''Resources'''
 
'''Resources'''
  
* [[EA machine designs | Machine designs - details]]
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* [[EIC luminosity]]
  
  
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* '''''Summer''''':  JLab Users' white paper  
 
* '''''Summer''''':  JLab Users' white paper  
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 +
* '''''Sep 27 - Oct 15''''': [http://www.int.washington.edu/PROGRAMS/10-3/ Matter under extreme conditions] at the INT program on "Gluons and the quark sea at high energies"
  
 
* '''''Nov 15-19''''': [http://www.int.washington.edu/PROGRAMS/10-3/  Workshop on "The Science Case for an EIC"] at INT
 
* '''''Nov 15-19''''': [http://www.int.washington.edu/PROGRAMS/10-3/  Workshop on "The Science Case for an EIC"] at INT
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** weeks 3-5: [https://wiki.bnl.gov/eic/index.php/QCD_Matter_under_Extreme_Conditions QCD Matter Under Extreme Conditions]
  
 
* '''''Winter''''': INT white paper on The Science Case for the EIC
 
* '''''Winter''''': INT white paper on The Science Case for the EIC
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== Resources & links ==
 
== Resources & links ==
  
* [[EA propagation - tasks | Tasks & subgroups]]
+
{|
 
+
|
* [[EA propagation - meetings | (Phone) meetings]]
+
* [[eA propagation: observables | List of observables]]
 
+
* [[EA propagation: meetings | (Phone) meetings]]
* [[EA machine designs | Machine designs - details]]
+
* [[Machine designs | Machine designs - details]]
 
+
* [[EA propagation: Monte Carlo | Our Monte Carlo codes]]
* [[EA propagation - Monte Carlo | Monte Carlo codes]]
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* [[eA propagation: documents | Documents & Talks]]
 
+
* [http://jet.lbl.gov/ The JET collaboration homepage]
 
+
* [https://wiki.bnl.gov/TECHQM/index.php/Partonic_Energy_Loss TechQM parton energy loss working group]
 +
|
 
* [http://www-spires.fnal.gov/spires/find/hep/www?eprint=arXiv:0907.3534 Review on Parton Propagation and Fragmentation in nuclear matter]
 
* [http://www-spires.fnal.gov/spires/find/hep/www?eprint=arXiv:0907.3534 Review on Parton Propagation and Fragmentation in nuclear matter]
 
+
* [https://wiki.bnl.gov/eic/ The eRHIC wiki]
* [http://web.mit.edu/eicc/SBU10/index.html Electron-Ion Collider Collaboration Meeting] at Stony Brook University, Jan 10-12
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* [http://web.mit.edu/eicc/CUA10/index.html Electron-Ion Collider Collaboration Meeting] at the Catholic University of America in Washington, DC, July 2010
 
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* [https://wiki.bnl.gov/eic/index.php/QCD_Matter_under_Extreme_Conditions QCD Matter Under Extreme Conditions] at INT 10-3 program, INT, Seattle, Sep 27 - Oct 25, 2010
 
* [[Conferences and workshops | Workshops of interest]]
 
* [[Conferences and workshops | Workshops of interest]]
 +
|}
  
  
 
== Members & mailing list==
 
== Members & mailing list==
  
* [[EA propagation group members | List of members]]
+
* [[EA propagation: group members | List of members]]
  
* Our mailing list (soon to come...)
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* [https://mailman.jlab.org/mailman/listinfo/eic_ppf Our mailing list]
  
 
* [mailto:accardi@jlab.org '''Join us!''']
 
* [mailto:accardi@jlab.org '''Join us!''']

Latest revision as of 19:37, 4 May 2011

[Back to e-A working group]

Contents

Goals

Our goal is to develop a program to explore parton propagation and fragmentation in a cold nucleus at the EIC. We should aim at

  • A list of possible measurements
  • Discussing new ideas and observables
  • Develop or adapt existing Monte-Carlo simulations
  • Perform simulations, and projections for EIC measurements

For each of our favorite observables, we should try and compare the performance of the JLab and BNL designs, in order to contribute in building the science case leading to the choice of the best one.

Our initial results will be presented at the Argonne and INT meetings and correspondingly summarized in 2 white papers, see #Timeline below.


In practice

In practice, and to kick-start our work, I suggest the following 3 steps

  • Decide on a list of priorities
    • Make a short list of priorities (each of us)
    • Alberto will then collect them in a short document
  • Take responsibility
    • Stick names to the priorities
  • Work!
    • Aim for preliminary results at Argonne, final in Seattle
    • When a result is ready, provide a short write-up with plots and results for general discussion

We have set up weekly phone meetings, see here.


Resources


Results and Ongoing analyses

We are currently exploring light flavors, heavy flavors, jets and HBT correlation, with more waiting for to be picked up. Results and ongoing analyses can be accessed through our observables page.


Monte Carlo simulations

We need a range of Monte Carlo simulations of nuclear effects on parton prpagation and fragmentation, which allow us to simulate various phsyical ideas, and produce detailed projections for the various detectors and machines designs. Details on our Monte Carlo efforts can be found following the link below.


Machine designs

Our focus should be on the medium-energy EIC (MEIC@JLab or eRHIC stage 1), but it would be useful to evaluate how this program could be extended to a full-energy EIC, and wether the full-energy machine is necessary for our physics program, or this can be completed with the medium-energy machine. You can find her the luminosity vs. energy profile of either design can be found.

Then, we all should consider 2+1 main questions:

  1. What physics within your topic of interest can quantitatively be accomplished with the foreseen parameters?
  2. What physics within your topic of interest could quantitatively be accomplished with a change in the parameter space given, e.g. by a change in energies, a change in luminosity?
  3. Let's also keep in mind: will your physics likely be exhausted at the medium-energy EIC, or will it need also the full-energy EIC?


Resources


Timeline

We want to complete our initial studies by the end of 2010 according to the timeline below, and to present our results first at the Argonne's "Nuclear Chromodynamics" workshop and then at the INT, Seattle, "The Science case for the EIC" workshop. Correspondingly we will contribute to 2 white papers. At the end of this first phase, we will evaluate how to continue.

2010

  • June 7-9: JLab Users' meeting [report on Argonne's meeting]
  • Summer: JLab Users' white paper
  • Winter: INT white paper on The Science Case for the EIC


Resources & links


Members & mailing list