<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Windows-1252">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Dear Colleagues,</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">
<span style="background-color: rgb(255, 255, 255);">we are organizing the two-day
<b>"BDX & Beyond" </b>Workshop (in person and on Zoom), scheduled for <b>September 4–5, 2025</b>, at
<b>JLab</b>. The workshop aims to optimize the use of secondary beams at JLab. A <b>
White Paper</b> will summarize its findings and recommendations.</span></div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span style="background-color: rgb(255, 255, 255);"><br>
</span></div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span style="background-color: rgb(255, 255, 255);">We are glad to accept oral contributions of 15+5 min via the indico page (</span><a href="https://indico.jlab.org/event/951/abstracts/" id="OWA95bf977b-6607-67d1-fe0e-4be0ba28cd94" class="x_moz-txt-link-freetext OWAAutoLink" data-auth="NotApplicable" style="margin: 0px; text-align: left;">https://indico.jlab.org/event/951/abstracts/</a><span style="background-color: rgb(255, 255, 255);">).</span></div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span style="background-color: rgb(255, 255, 255);"><br>
</span></div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span style="background-color: rgb(255, 255, 255);">This workshop will serve as a forum for presenting
<b>ideas relevant to secondary beam experiments at JLab</b> and for engaging in discussions with experts from the muon, neutrino, dark matter, and accelerator physics communities.
</span>The scientific program is structured around the following tracks:</div>
<div style="background-color: rgb(255, 255, 255);">
<div style="background-color: rgb(255, 255, 255); margin: 0px;">
<ol start="1" data-end="1546" data-start="1411" style="text-align: left; flex-direction: column; display: flex;">
<li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); align-self: start; text-indent: 0px;">
Muon physics</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); align-self: start;">
Neutrino physics</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); align-self: start;">
Dark matter and dark sector</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); align-self: start;">
Instrumentation and targets</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); align-self: start;">
Other topics (including beam dump and beam lines)</li></ol>
</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span style="background-color: rgb(255, 255, 255);">Invited speakers include: Andrei Afanasev (GWU), Dinawita Banerjee (CERN), Ethan Cline (StonyBrook), Luca Doria (MainzU), Claudio Montanari (INFN), Vishvas Pandey (FNAL), Ryan Plestid (CalTech), Riccardo Rossini
(PaviaU), Davide Terzani (LBL).</span></div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">
<span style="background-color: rgb(255, 255, 255);"><br>
</span></div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">
<span style="background-color: rgb(255, 255, 255);">Jefferson Lab is internationally recognized for its comprehensive scientific program in hadron physics, enabled by the up-to-12 GeV electron beam from CEBAF and primarily conducted through fixed-target experiments.
The interaction of the high-intensity electron beam with the beam dump produces intense secondary beams of muons, neutrinos, neutrons, and potentially even hypothetical dark matter particles. The potential for producing a light dark matter beam is currently
being explored by the PAC-approved Beam Dump eXperiment (BDX). The underground facility planned for BDX could also accommodate additional instrumentation to enable new experiments utilizing these secondary beams.</span></div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; color: rgb(0, 0, 0);">
We look forward to seeing you at JLab this September!<br>
<br>
<i>Patrick Achenbach<br>
Adi Ashkenazi<br>
Marco Battaglieri<br>
Jay Benesch<br>
Mariangela Bondi<br>
Eric Christy<br>
Simona Giovannella<br>
Thia Keppel<br>
Michael Kohl<br>
Camillo Mariani<br>
Kevin McFarland<br>
Jianwei Qiu<br>
Adrian Signer<br>
(BDX & Beyond Scientific Program Committee )</i></div>
</div>
</body>
</html>