Conveners
Poster Session
- CHAIR: Pia Jones Petrak (JLab)
-
Richard Brunner (Florida State University)6/11/26, 1:30 PMPoster
The GlueX experiment has accumulated the largest available data set for photoproduction studies, enabling detailed investigations of strong-interaction dynamics and searches for new resonant states. We present data collected at the Thomas Jefferson National Accelerator Facility using a linearly polarized photon beam, with a coherent peak near 9 GeV, incident on a liquid hydrogen target, and...
Go to contribution page -
Sailaja Muduganti (Old Dominion University)6/11/26, 1:39 PMPoster
A robust framework measurements of spin observables in electron–nucleon
Go to contribution page
scattering were conducted at Jefferson Lab using upgraded CEBAF Large Ac-
ceptance Spectrometer(CLAS12) by Run group C (RGC). These experiments
involved the scattering of a polarized 11 GeV electron beam incident on lon-
gitudinally solid polarized nucleon targets located within CLAS12 spectrom-
eter in Hall B. The... -
Joachim Tsakanikas (University of Virginia)6/11/26, 1:48 PMPoster
Modern particle experiments require large, sophisticated machines and the expertise of many scientists and dedicated personnel. Coordinating machine performance with different, possibly competing goals for simultaneous experiments is a major challenge. To address this challenge, Jefferson Lab's Coupling Experiment to Accelerator Control (CEAC) project members will train a deep reinforcement...
Go to contribution page -
Xiang Zhang6/11/26, 1:57 PMPoster
The MOLLER experiment will make an ultra-high precision measurement of parity violation in electron-electron scattering as a sensitive search for new fundamental physics. Compton polarimetry provides a powerful non-invasive method to determine the polarization of high-energy electron beams with high precision. We present the design and development of a Compton polarimeter which will achieve a...
Go to contribution page -
Tyler Hellstern (Duke University)6/11/26, 2:06 PMPoster
Exclusive Vector Meson Production in the SIDIS kinematic Regime at Hall B of Jefferson Lab provides a unique opportunity to probe the 3D structure of the nucleon through Generalized Parton Distribution Functions (GPDs). Furthermore, by studying this production mechanism we can better understand the background to SIDIS measurements that lead to the same final state. In the channel...
Go to contribution page -
Julio Gil Gutierrez (University of Tennessee)6/11/26, 2:15 PMPoster
Semi-inclusive Deep Inelastic Scattering measurements have proven to be instrumental in providing access to flavor and transverse momentum distributions of the nucleon due to its ability to tag specific final-state hadrons in coincidence with the scattered electrons. So far, analyses in the SIDIS regime assume no nuclear dependence of the ratio $R=\sigma_L/\sigma_T$ of the longitudinal to...
Go to contribution page -
Amitabh Biswas (New Mexico State University)6/11/26, 2:24 PMPoster
One major goal of the Low Energy Recoil Tracker (ALERT) experimental program at the Thomas Jefferson National Accelerator Facility (JLab) is to study the fundamental structure of nucleons bound in a Helium-4 nucleus. This study explores the transition of strongly bound neutrons to the first excited state of the nucleon known as the Delta resonance. The excitation is induced by scattering...
Go to contribution page -
Muhammad Bedier6/11/26, 2:33 PMPoster
Color transparency (CT) is the suppression of final state interactions of a hadron propagating through nuclear medium when it is produced at small transverse size. The upcoming pion CT experiment plans to search for the onset of Color Transparency in pion in Hall C at Jefferson Lab. We plan to use the High Momentum Spectrometer (HMS) and the Super High Momentum Spectrometer (SHMS) in...
Go to contribution page -
Marco Filippini6/11/26, 2:42 PMPoster
The study of hadron spectroscopy and nucleon resonance structure has entered a new precision era with the 12 GeV upgrade at Jefferson Lab. The CLAS12 detector, a large-acceptance spectrometer in Hall B, provides efficient charged and neutral particle detection over a wide solid angle.
Go to contribution page
We present a preliminary analysis of the exclusive quasi-real 2 pion photoproduction, from the... -
Yangli Zeng (William and Mary)6/11/26, 2:51 PMPoster
Timelike Compton Scattering (TCS), accessed through exclusive dilepton photoproduction $\gamma p \to p' \ell^+\ell^-$, is a key complementary channel to Deeply Virtual Compton Scattering (DVCS) for extracting generalized parton distributions (GPDs) from experiment. While DVCS primarily probes the imaginary part of Compton form factors, TCS provides independent access to the real part, and the...
Go to contribution page -
Nazmus Sayadat Ifat6/11/26, 3:00 PMPoster
The proton radius puzzle arises from the discrepancy between measurements of the proton charge radius obtained from muonic hydrogen spectroscopy and electron-based measurements, including electron-proton scattering and ordinary hydrogen spectroscopy. In 2010, the muonic hydrogen spectroscopy measurement reported a significantly smaller proton charge radius, differing by about 5σ from the...
Go to contribution page -
Nishadi Silva6/11/26, 3:09 PMPoster
Gluons are responsible for binding quarks inside protons and neutrons through the strong interaction (QCD). Understanding how gluons are arranged spatially provides insight into how nucleons interact and how nuclear matter is held together. The investigation of near-threshold J/ψ meson photoproduction is unique opportunity to probe the gluonic structure of the nucleon and light nuclei. In...
Go to contribution page -
Mrs Neidy Lorena Bucuru Rodriguez (PhD Student - IJCLab JLAB/EIC Group)6/11/26, 3:18 PMPoster
Understanding nucleon structure is important, as it is one of the building blocks of the visible universe. Usually, nucleon structure is studied using electromagnetic probes, such as electrons. At low-energy Quantum Chromo-Dynamics (QCD), the study is in a non-perturbative regime. This means that it is necessary to introduce structure functions to describe the nucleon's internal dynamics. Ones...
Go to contribution page -
Aoran Liu6/11/26, 3:27 PMPoster
Accurate reconstruction of neutral particles (neutrons and photons) is essential for a broad range of nuclear physics measurements. However, the current COATJAVA reconstruction software at CLAS12 produces an overabundance of false neutral clusters, necessitating conservative selection cuts that reduce reconstruction efficiency. To address this limitation, we present an AI-based clustering...
Go to contribution page -
Vidhura Vishvanath Nishshanka Arachchillage (Jefferson Lab SBS Collaboration)6/11/26, 3:36 PMPoster
The investigation of the spatial distributions of the charge and magnetism within nucleons remains a central problem in Hadronic Physics. The deviation from a point charge and point-like anomalous magnetic moment is characterized by introducing measurable observables as Form Factors (FFs). A clear discrepancy exists between FF ratios obtained using Rosenbluth separation and polarization...
Go to contribution page -
Yuan Li (Shandong University)6/11/26, 3:45 PMPoster
The proton charge radius ($r_p$) is a fundamental quantity for understanding QCD and is essential for high-precision QED calculations. It is typically measured using hydrogen spectroscopy or elastic electron-proton (e-p) scattering. Since 2010, there has been the so-called “proton charge radius puzzle,” which arose from the results of muonic hydrogen spectroscopy. To further address the...
Go to contribution page