https://eic.jlab.org/wiki/index.php?title=EA_Color_in_nuclei_Color_in_nuclei&feed=atom&action=historyEA Color in nuclei Color in nuclei - Revision history2020-06-05T01:27:35ZRevision history for this page on the wikiMediaWiki 1.21.3https://eic.jlab.org/wiki/index.php?title=EA_Color_in_nuclei_Color_in_nuclei&diff=591&oldid=prevDdutta: New page: Back to e-A working group * '''Welcome!''' == Goals == Our goal is to develop a program to explore QCD and Color in Nuclei usi...2010-02-17T20:12:12Z<p>New page: <a href="/wiki/index.php/E-A_Working_Group" title="E-A Working Group"> Back to e-A working group</a> * <a href="/wiki/index.php/EA_Color_in_Nuclei_-_welcome" title="EA Color in Nuclei - welcome"> '''Welcome!'''</a> == Goals == Our goal is to develop a program to explore QCD and Color in Nuclei usi...</p>
<p><b>New page</b></p><div>[[E-A Working Group | Back to e-A working group]]<br />
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* [[EA Color in Nuclei - welcome | '''Welcome!''']]<br />
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== Goals ==<br />
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Our goal is to develop a program to explore QCD and Color in Nuclei using the EIC. <br />
<br />
Our aims are:<br />
* A list of possible measurements<br />
* Discussing new ideas and observables<br />
* Perform simulations, and projections for EIC measurements<br />
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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.<br />
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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.<br />
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For the Argonne workshop we are trying to answer the following questions:<br />
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1) What physics within your topic of interest can *quantitatively* be<br />
accomplished with the foreseen parameters?<br />
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2) What physics within your topic of interest could *quantitatively* be<br />
accomplished with a change in the parameter space given, *e.g.* by a change<br />
in energies, a change in luminosity, a change in detector space.<br />
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== Immediate Steps ==<br />
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To kick-start our work, we need to ...<br />
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* '''List the Priorities '''<br />
** [[EA Color in Nuclei - list|Make a list of your favorite measurements]]<br />
** Dipangkar will then collect them in a short document<br />
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* '''Take responsibility'''<br />
** Stick names to the priorities <br />
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* '''Work!'''<br />
** Aim for preliminary results at Argonne, final in Seattle<br />
** When a result is ready, provide a short write-up with plots and results for general discussion<br />
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We will soon set up bi-weekly phone meetings.<br />
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'''Resources'''<br />
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* [[EA Color in Nuclei - tasks | Tasks & subgroups]]<br />
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* [[EA Color in Nuclei - meetings | (Phone) meetings]]<br />
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== Monte Carlo simulations ==<br />
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We need a range of Monte Carlo simulations, which allow us to simulate various physical 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.<br />
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* [[EA Color in Nuclei - Monte Carlo | Our Monte Carlo e+A codes ]]<br />
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* [[Detector_Working_Group | JLab Detector working group]]<br />
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* [https://wiki.bnl.gov/eic/index.php/Simulations_and_EIC_Computing_How-To BNL generators and detector simulations]<br />
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== Machine designs ==<br />
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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. <br />
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I note here the main machine designs currently under consideration for quick reference and to standardize our studies <br />
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'''New Parameters ''' (From Monts)<br />
* [energy] <math> E_{e} = 3 - 11 GeV, E_{p} = 20 - 60 GeV </math><br />
* [luminosity] <math> I_{e}^{max} = 1 A, I_{p}^{max} = 2 A </math><br />
* [ RF frequency] <math> 1.5 GHz </math><br />
* [crossing angle] <math> 100 mrad </math><br />
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'''EIC-I''' (Medium-energy EIC)<br />
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* [JLab] <math> E=3+30 \ L=40\times 10^{33} </math> <br />
* [JLab] <math> E=11+30 \ L=0.4\times 10^{33} </math><br />
* [BNL] <math> E=4+100 \ L=0.1\times 10^{33} </math><br />
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'''EIC-II''' (Full-energy EIC)<br />
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* [JLab] <math> E=11+120 \ L=10\times 10^{33} </math> <br />
* [BNL] <math> E=20+130 \ L=2.8 \times 10^{33} </math><br />
<br />
However, feel free to explore non-standard scenarios that can optimize the physics output. Examples are<br />
* MEIC optimized in luminosity for 5-7 GeV electrons, with a resulting higher luminosity for the 11 GeV beam<br />
* A possible doubling of electron energy to, say, 22 GeV with luminosity reduced by apprixmately a factor 10<br />
* A full-energy EIC @ JLab, with E=22+120<br />
* A super high-energy eRHIC with E=30+320<br />
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More details can be found [[EA machine designs | here]]. <br />
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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?<br />
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'''Resources'''<br />
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* [[EA machine designs | Machine designs - details]]<br />
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== Timeline ==<br />
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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.<br />
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'''2010''' <br />
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* '''''April 7-9''''': [http://www.phy.anl.gov/mep/EIC-NUC2010/ Nuclear Chromo-Dynamics workshop] at Argonne<br />
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* '''''June 7-9''''': JLab Users' meeting [report on Argonne's meeting]<br />
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* '''''Summer''''': JLab Users' white paper <br />
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* '''''Nov 15-19''''': [http://www.int.washington.edu/PROGRAMS/10-3/ Workshop on "The Science Case for an EIC"] at INT<br />
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* '''''Winter''''': INT white paper on The Science Case for the EIC<br />
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== Resources & links ==<br />
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{|<br />
| <br />
* [[EA Color in Nuclei - tasks | Tasks & subgroups]]<br />
* [[EA Color in Nuclei - meetings | (Phone) meetings]]<br />
* [[EA machine designs | Machine designs - details]]<br />
* [[EA Color in Nuclei - Monte Carlo | Our Monte Carlo codes]]<br />
| <br />
* [http://arxiv.org/find/nucl-th/1/ti:+AND+Color+Transparency/0/1/0/all/0/1 Color Transparency on arXiv]<br />
* [https://wiki.bnl.gov/eic/ The eRHIC wiki]<br />
* [http://web.mit.edu/eicc/SBU10/index.html Electron-Ion Collider Collaboration Meeting] at Stony Brook University, Jan 10-12<br />
* [[Conferences and workshops | Workshops of interest]]<br />
|}<br />
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== Members & mailing list==<br />
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* [[EA Color in Nuclei group members | List of members]]<br />
* Our mailing list (soon to come...)<br />
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* [mailto:d.dutta@msstate.edu '''Join us!''']<br />
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== Meetings ==<br />
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* 02/2/10: [[eA color WG Meeting Agenda 02/2/10 | (Agenda)]] [[eA color WG Meeting Minutes 02/2/10 | (Minutes)]]</div>Ddutta