<div dir="ltr">Dear NPWG Members,<div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div class="gmail_quote"><div dir="ltr"><div><br></div><div class="gmail_extra">I am forwarding you the abstracts that we are willing to submit for the DNP meeting. Your comments are welcome!<br clear="all"><div><div class="m_-1799394637458524281m_8857299497248215811gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><br>Best,<br><br>Lamiaa</div><div><br></div><div><br></div><div><b>Abstract 1</b>: <font size="1"><span style="font-family:arial,helvetica,sans-serif"><br></span></font></div><div><font size="4"><span style="font-family:arial narrow,sans-serif"><br></span></font></div><div><font size="4"><span style="font-family:arial narrow,sans-serif">Highlight of Fragmentation Studies in CLAS
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<div class="m_-1799394637458524281gmail-page" title="Page 1"><div class="m_-1799394637458524281gmail-layoutArea"><div class="m_-1799394637458524281gmail-column"><p><span style="font-family:arial,helvetica,sans-serif"><font size="2">Lamiaa El Fassi<span style="vertical-align:5pt"></span>, Sereres C. Johnston<span style="vertical-align:5pt"> </span>and Md Latiful Kabir</font></span><span style="font-family:arial,helvetica,sans-serif"><font size="2"> / On behalf of the CLAS Collaboration</font></span></p><p><span style="font-size:11pt;font-family:"CMR10"">Over the last few decades several studies have probed color propagation and hadron
production from hard interactions in nuclei, related to one of the basic phenomenon of
quantum chromodynamics (QCD). The process referred to as hadronization or fragmentation, in which the energetic struck quark transforms to color-neutral hadrons, is
an effective way to probe the confinement dynamics and test its characteristic time-
scales. This talk will highlight ongoing efforts to study, for the first time, the semi-
inclusive deep inelastic production of Λ</span><span style="font-size:8pt;font-family:"CMR8";vertical-align:4pt">0 </span><span style="font-size:11pt;font-family:"CMR10"">hyperon in the current and target fragmentation regions using the 6 GeV CLAS EG2 data. The analysis results of this baryon
channel combined with other meson production in the same data sets will improve
our understanding of the space-time evolution of hadrons at intermediate energy, and
would manifest a good boost for the upcoming extension of this hadronization program with the upgraded Jefferson Lab 12 GeV beam-energy and CLAS.
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<p><span style="font-size:11pt;font-family:"CMR10"">This work is supported in part by the US DOE contracts # DE-FG02-03ER41528 and
DE-AC02-06CH11357.
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</div><div><b>Abstract 2</b>:
<span></span><span style="font-size:21pt;font-family:"CMR17""><br></span></div><div><span style="font-family:arial narrow,sans-serif"><font size="4">Study of Forward and Backward Fragmentation
Processes in Λ<span style="vertical-align:7pt"><font size="1">0</font> </span>Leptoproduction</font></span></div><div>
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<p><span style="font-family:arial,helvetica,sans-serif"><font size="2">Sereres C. Johnston<span style="vertical-align:5pt"> </span>and Lamiaa El Fassi <span></span></font></span><span style="font-size:14pt;font-family:"CMR12""><span style="font-family:arial,helvetica,sans-serif"><font size="2"><span> / On behalf of the CLAS Collaboration</span></font></span></span><span style="font-size:10pt;font-family:"CMR10";vertical-align:5pt"></span></p>
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<font size="4"><span style="font-family:"CMR17""></span></font></div><div><font size="4"><span style="font-family:"CMR17""></span></font><span style="font-size:21pt;font-family:"CMR17""></span><div class="m_-1799394637458524281gmail-page" title="Page 1"><div class="m_-1799394637458524281gmail-layoutArea"><div class="m_-1799394637458524281gmail-column"><p><span style="font-size:11pt;font-family:"CMR10"">Fracture functions are akin to fragmentation functions but describe hadron pro-
duction in the target remnant rather than current fragmentation region, factorizing
and evolving in a predictable way. Like structure functions, fracture functions extracted from an experiment in one kinematic regime can be used to compute reactions
at different scales. Recent theoretical predictions have acknowledged the leptoproduction of Λ</span><span style="font-size:8pt;font-family:"CMR8";vertical-align:4pt">0 </span><span style="font-size:11pt;font-family:"CMR10"">hyperon as the best probe to study the fracture functions in semi-inclusive
deep-inelastic scattering. Λ</span><span style="font-size:8pt;font-family:"CMR8";vertical-align:4pt">0 </span><span style="font-size:11pt;font-family:"CMR10"">production off deuterium in datasets which can be finely
binned in variables such as </span><span style="font-size:11pt;font-family:"CMMI10"">Q</span><span style="font-size:8pt;font-family:"CMR8";vertical-align:4pt">2</span><span style="font-size:11pt;font-family:"CMR10"">, </span><span style="font-size:11pt;font-family:"CMMI10"">x</span><span style="font-size:8pt;font-family:"CMMI8";vertical-align:-2pt">B </span><span style="font-size:11pt;font-family:"CMR10"">and </span><span style="font-size:11pt;font-family:"CMMI10"">ν </span><span style="font-size:11pt;font-family:"CMR10"">provide valuable experimental input for the
first extraction of fracture functions using electron triggered processes. This talk will
describe the ongoing Λ</span><span style="font-size:8pt;font-family:"CMR8";vertical-align:4pt">0 </span><span style="font-size:11pt;font-family:"CMR10"">analysis from 6 GeV CLAS EG2 data-sets with a discussion
of both forward and backward fragmentation processes.
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<p><span style="font-size:11pt;font-family:"CMR10"">This work is supported in part by the US DOE contracts # DE-AC02-06CH11357 and
DE-FG02-03ER41528.
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</div><div><br></div><div><span><div dir="ltr"><span><div>******************************<wbr>******************************<wbr>**************<br>* Assistant Prof. Lamiaa El Fassi / email: <a href="mailto:le334@msstate.edu" target="_blank">le334@msstate.edu</a><br>
******************************<wbr>******************************<wbr>**************<br></div><div>* Phone: <a value="+17572696526">(662) 325-0627 / Fax: <span><span></span></span></a><a value="+17572696526">(662) 325-8898<br></a></div><div>* URL: <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__le334.physics.msstate.edu_&d=DwMFaQ&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=Qb_IZ3X28hc0_BBIH69O6g&m=OslqwsO5SoJXUaM2rAzz8S9O4RLIDscYTkJzYf6tqQE&s=vTSTxTv3FIYiP_U8VqvIvg7QTWaTQMZhEKDvNOQfWKw&e=" target="_blank">http://le334.physics.msstate.e<wbr>du/ </a> <br></div><div><span><span>* Department of Physics and Astronomy</span></span> </div>* 355 Lee Blvd, 125 Hilbun Hall<br></span></div><div dir="ltr"><span><div>* P.O.Box 5167</div><div>* Mississippi State, MS 39762 <br></div><div><div>******************************<wbr>******************************<wbr>***************</div></div></span></div></span><span></span></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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