International Workshop on Origin of Mass and Matter in the Universe

21 Jul 2026, 09:00 → 24 Jul 2026, 18:00 Asia/Seoul

512 (APCTP)

Ahmad Jafar Arifi (JAEA), Kazuo Tsushima (University of City of Sao Paulo (UNICID)), Myung-Ki Cheoun (Soongsil University), Philipp Gubler (JAEA)

Quantum Chromodynamics (QCD) is the fundamental theory of the strong interaction, governing the dynamics of quarks and gluons and giving rise to hadrons and atomic nuclei. One of its most profound consequences is the dynamical generation of mass: more than 90% of the proton and neutron masses—and thus most of the visible mass in the Universe—originate from nonperturbative QCD dynamics associated with spontaneous chiral symmetry breaking. Understanding how these masses and hadronic structures emerge from QCD remains a central challenge in modern nuclear and particle physics.

While hadrons already exhibit rich and complex properties in free space, even more intriguing phenomena emerge under extreme conditions such as high density and/or temperature, encountered in nuclei, relativistic heavy-ion collisions, and the cores of compact stars. In such environments, QCD predicts a partial restoration of chiral symmetry, leading to significant modifications of hadron properties in medium. This workshop aims to explore both the fundamental structure of hadrons in free space and their behavior in nuclear and hot/dense matter, addressing key theoretical and experimental developments relevant to ongoing and planned programs at major international facilities, including JLab, RHIC, J-PARC, FAIR, CERN, and BESIII.

 

Preceding workshop: https://indico.global/event/18062/ 

 

 

Tuesday 21 July

10:00 Free discussion

12:00 Lunch + Registration

Session chair: Kazuo Tsushima

1 Opening

2 Myung-Ki Cheoun

3 Effect of symmetry energy in the hadron-quark phase transition in the neutron star

Speaker: Chang Ho Hyun

15:00 Break

Session chair: Wooseung Jung

4 In-medium mass shifts and nucleus bound states of Bc(∗) , Bs(∗) and Ds(∗) mesons (Bc,-12 C, -A)

Speaker: Kazuo Tsushima

5 Hana Gil

Wednesday 22 July

Session chair: Tsuyoshi Miyatsu

6 Philipp Gubler

10:40 Break

7 H-Dibaryon Search near the ΛΛ and Ξp Thresholds at J-PARC

Speaker: Wooseung Jung

11:40 Lunch break (+ Workshop photo)

Session chair: Myung-Ki Cheoun

8 Quark saturation and quarkyonic matter in a quark-meson coupling model

Speaker: Tsuyoshi Miyatsu

9 Sangho Kim

14:50 Break

Session chair: Sangho Kim

10 Yuk Kei Kong

11 Pion properties and quark condensate in isospin-asymmetric nuclear matter

Speaker: Kihong Kwon

Thursday 23 July

Session chair: Philipp Gubler

12 Implications of f1 mixing angle and mass spectrum of axial vector mesons

Speaker: Yoshito Nakane

13 Momentum Dependence of Charmonia and K1 in Medium: A QCD Sum Rules Approach

Speaker: Seokwoo Yeo

10:50 Break

14 Lambda and Sigma hyperons in nuclear matter

Speaker: Asanosuke Jinno

11:40 Lunch break

13:30 Free discussion

Friday 24 July

Session chair: Ahmad Jafar Arifi

15 Satomi Nakasuga

10:40 Break

16 First measurement of the escape $K^-$ in the $^{12}\mathrm{C}(K^-,p)$ reaction for probing the kaon-nucleus optical potential

Speaker: Fumiya Oura

11:40 Lunch break

Session chair: Fumiya Oura

17 Phi meson in nuclear matter

Speaker: Ahmad Jafar Arifi

14:10 Break

18 Shin Hyung Kim

19 Closing

15:30 Free discussion