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0001 ---
0002 title: Exclusive and Diffraction
0003 name: exclusive_diffraction
0004 layout: default
0005 ---
0006
0007 {% include layouts/wg_top.md %}
0008
0009 ##### Activities
0010
0011 __Task List__
0012 * Implementation of benchmarks for all YR & proposal channels
0013 * Highest priority are DVCS and at least one tagged process
0014 * Improve reconstruction in the FFwd region
0015 * Beam optics for various configurations
0016 * Treatment of more nuclei (He<sup>4</sup> He<sup>3</sup>...)
0017 * Study photon/π<sup>0</sup> separation in calorimeters
0018 * Particularly implications for DVCS analyses
0019
0020 __Benchmarks__
0021 * Diffractive Phi in eAu -- see [talk from K.Tu](https://indico.bnl.gov/event/20921/){:target="_blank"} (10/23/23)
0022
0023 __Ongoing Activities__
0024 * DVCS
0025 * [Study on proton DVCS from O. Jevons](https://indico.bnl.gov/event/21561/){:target="_blank"} (01/22/24)
0026 * DVMP
0027 * π<sup>0</sup> study from H.Jiang: [[1]](https://indico.bnl.gov/event/22937/){:target="_blank"} (04/08/24) and [[2]](https://indico.bnl.gov/event/23345/){:target="_blank"} (05/20/24)
0028 * J/ψ [study from O. Olokunboyo](https://indico.bnl.gov/event/23069/){:target="_blank"} (04/22/24)
0029 * J/ψ [study from S. Fegan](https://indico.bnl.gov/event/23350/){:target="_blank"} (05/13/24)
0030 * Meson form factor
0031 * Study from L. Preet [[1]](https://indico.bnl.gov/event/22074/){:target="_blank"} (01/29/24) and [[2]](https://indico.bnl.gov/event/23069/){:target="_blank"} (04/22/24)
0032 * Backward meson production
0033 * π<sup>0</sup> on proton. See talks from Z.Sweger [[1]](https://indico.bnl.gov/event/20540/){:target="_blank"} (10/02/23) and [[2]](https://indico.bnl.gov/event/22074/){:target="_blank"} (01/29/24)
0034 * π<sup>0</sup> and ρ [study from Z.Sweger](https://indico.bnl.gov/event/23069/){:target="_blank"} (04/22/24)
0035 * Coherent VM production
0036 * J/ψ on A. See talk from Z.Citron, E.Mautner, M.Pitt [[1]](https://indico.bnl.gov/event/20539/){:target="_blank"} (09/18/23) and [[2]](https://indico.bnl.gov/event/23345/){:target="_blank"} (05/20/24)
0037 * ϕ on deuterium. See [talk from A.Jentsch, K.Tu](https://indico.bnl.gov/event/20312/){:target="_blank"} (09/11/23)
0038 * Exclusive 𝛶 production
0039 * See talks from S.Yoo [[1]](https://indico.bnl.gov/event/20311/){:target="_blank"} (08/21/23) and [[2]](https://indico.bnl.gov/event/23163/){:target="_blank"} (04/29/24)
0040 * Elastic <em>ep</em>
0041 * [Study from B.Schmookler](https://indico.bnl.gov/event/23163/){:target="_blank"} (04/29/24)
0042
0043 __Detector oriented studies__
0044 * Impact of the B0 resolution
0045 * [Talk from A.Jentsch](https://indico.bnl.gov/event/20311/){:target="_blank"} (08/21/23)
0046 * [Talk from Z.Sweger](https://indico.bnl.gov/event/20935/){:target="_blank"} (05/13/24)
0047 * Impact of the ZDC resolution
0048 * On π<sup>0</sup> reconstruction see [talk from Z.Sweger](https://indico.bnl.gov/event/20935/){:target="_blank"} (11/06/23)
0049 * On reconstructing <em>t</em> in the ZDC see [talk from B.Schmookler](https://indico.bnl.gov/event/21561/){:target="_blank"} (01/22/24)
0050
0051 __Simulations__
0052 * [Google sheet with locations of output files from July simulation campaign](https://docs.google.com/spreadsheets/d/1bLA2vD_0i0WO7niqDcIDtV4DOrjF3jxgQHSGLt0OmPQ/edit?usp=sharing){:target="_blank"}
0053 * [Further instructions on accessing and analyzing the July sim files](https://indico.bnl.gov/event/17070/contributions/68171/attachments/43275/72797/Meeting120922.pdf){:target="_blank"}
