Joint 20th International Workshop on Hadron Structure and Spectroscopy and 5th workshop on Correlations in Partonic and Hadronic Interactions

Session

Tuesday Afternoon

1 Oct 2024, 14:25

"Pomegranate" hall (Ramada Hotel & Suites by Wyndham, Yerevan, Armenia)

47. Multi-messenger studies of nuclear short-range correlations

Dr Maria Patsyuk (JINR)

01/10/2024, 14:25

Short-Range Correlations (SRC) refer to pairs of nucleons that exhibit high relative momentum while maintaining low center-of-mass momentum. Over the past decade, extensive investigations, primarily using electron scattering,have revealed that SRCs predominantly consist of neutron-proton pairs, which significantly contribute to the high-momentum tail of nuclear wave functions.

Recent...

42. Experimental efforts searching for the onset of Color Transparency

Holly Szumila-Vance (Florida International University)

01/10/2024, 14:50

Searching for the onset of Color Transparency (CT) is a vibrant experimental effort to observe hadrons in a small neutral transverse size configuration in the nucleus. The observation of the onset of CT lies at the intersections between the quark-gluon degrees of freedom and the nucleonic descriptions of nuclei. CT is fundamentally predicted by quantum chromodynamics and is expected to be...

6. SRC studies with proton probes

Alexei Larionov

01/10/2024, 15:10

Nuclear structure at short NN distances is still poorly known. In the past, most experiments studied either A(e,e'pN) or A(p,ppN) processes without identification of the state of the residual nucleus. It was even not always clear whether the residual (A-2) nucleus survives and is not broken. (The exception are the experiments at NIKHEF and MAMI on the 16O(e,e'pp)14C process where the 0^+...

3. Light-front densities of the polarized deuteron

Wim Cosyn (Florida International University)

01/10/2024, 15:30

High-energy reactions on nuclei are conveniently described using light-front quantization. I discuss how especially in tagged processes on the deuteron, the light-front densities of the polarized deuteron enter. I discuss their properties (of relevance to polarized measurements) and some similarities to partonic TMDs.

7. Coherent gluon radiation in pA collisions: beyond leading-log accuracy

Stephane Peigne

01/10/2024, 15:50

After recalling the main features of fully coherent energy loss (FCEL) suffered by an energetic parton in high-energy proton-nucleus (pA) collisions, I will present results for the associated gluon radiation spectrum beyond leading-logarithmic accuracy, for all 2 —> 2 partonic channels in perturbative QCD.

19. Dark Sector physics: candidates and searches

Prof. Fiorenza Donato (Torino University)

01/10/2024, 16:40

I will review the main particle candidates to constitute the dark matter in the Universe. I will discuss the state-of-the-art searches of some of the candidates both with accelerator experiments and with astrophysical techniques.

51. AMBER Antiproton Production Measurements: A Contribution to Dark Matter Search

Davide Giordano (INFN Torino)

01/10/2024, 17:10

One of the indirect detection method of dark matter (DM) is based on the search of the products of DM annihilation or decay. They should appear as distortions in the gamma rays spectra and in the rare Cosmic Ray (CR) components, like antiprotons, positrons and antideuterons, on top of the standard astrophysical production. In particular, the antiprotons in the Galaxy are mainly of secondary...

17. Dark sector searches at the electron accelerator MESA

Sebastian Stengel

01/10/2024, 17:30

The existence of dark matter has been supported by decades of accumulating evidence, making it one of the most compelling unsolved mysteries in modern physics. While its presence is widely accepted, the true nature of dark matter remains elusive. Among the many experimental strategies to probe this enigma, fixed-target experiments at particle accelerators offer a promising avenue, with the...

16. The Beam Dump eXperiment at Jefferson Lab

Mariangela Bondi (INFN - Sezione di Catania)

01/10/2024, 17:50

The Beam Dump Experiment (BDX) at Jefferson Laboratory (JLAB) is electron-beam thick-target experiment to search for Light Dark Matter (LDM) particles in the MeV-GeV mass range. BDX will exploit the high-intensity 10.6 GeV e beam from CEBAF accelerator impinging on the beam dump of experimental Hall-A, collecting up to 10^22 electrons-on-target in a few years time. Any LDM particles produced...