PacificSPIN 2026 - The 13th Circum-Pan-Pacific Symposium on High Energy Spin Physics

27 Oct 2026, 08:00 → 30 Oct 2026, 19:25 Asia/Taipei

Institute of Physics, Academia Sinica

Wen-Chen Chang (Institute of Physics, Academia Sinica), Po-Ju Lin (National Central University), Di-Lun Yang (Academia Sinica)

The Circum-Pan-Pacific Symposium on High Energy Spin Physics (PacificSPIN) series was originally established to promote research in hadronic spin physics, with a particular focus on the partonic spin structure of the nucleon. Over the years, its scientific scope has expanded to encompass intriguing topics of spin polarization phenomena in heavy-ion collisions. Symposia in this series were held in Hefei(2024), Miyazaki(2019), Taipei(2015), Ji'nan(2013), Cairns(2011), Yamagata(2009), Vancouver(2007), Tokyo(2005), Washington(2003), Beijing(2001), Wako(1999), and Kobe (1996). The symposium also serves as a platform to strengthen collaboration and communication among physicists from the Circum-Pan-Pacific region and beyond, while providing valuable opportunities for young researchers to present their work.

We are pleased to announce that the next symposium, PacificSpin 2026, will be hosted by the Institute of Physics, Academia Sinica, in Taipei, from October 27 to 30, 2026 (Tuesday–Friday).

Scientific programs:

• Transverse and longitudinal spin structure of the nucleon
• Polarized parton distribution functions and fragmentation functions
• Transverse momentum dependent distributions
• Generalized parton distributions and form factors
• Spin polarization in heavy ion collisions
• Spin structure of the nucleon in Lattice QCD and effective QCD models
• Future facilities and experiments
  
  

Important deadlines:

• Registration / Abstract submission open: March 1
• Abstract deadline: June 15
• Notification for contributed talks: June 19
• Visa and travel permit application: July 20
• Registration deadline: October 15

Sponsors:

   

1st Circular of PacificSpin 2026.pdf

2nd Circular of PacificSpin 2026.pdf

3rd Circular of PacificSpin 2026.pdf

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Poster of PacificSPIN 2026

poster-PacificSPIN2026.jpg

Tuesday 27 October

08:30 → 09:00 Registration

09:00 → 09:05 Opening

09:05 → 09:20 PacificSpin Symposium -- An introduction

Speaker: Toshiaki Shibata

09:20 → 09:50 Theoretical overview of nucleon spin physics; (Remote)

Speaker: Xiangdong Ji

09:50 → 10:20 Experimental overview of spin physics in heavy ion collisions

Speaker: Takafumi Niida

10:20 → 10:50 Coffee

10:50 → 11:20 Recent progress from JLab spin experiments and future (SoLID) program

Speaker: Jian-Ping Chen

11:20 → 11:50 TMDs Measurements from COMPASS

Speaker: Bakur Parsamyan

11:50 → 12:10 Beam-spin induced polarization of lambda and anti-lambda hyperons in semi-inclusive deep-inelastic scattering at HERMES

Speaker: Gunar Schnell

12:10 → 14:00 Lunch

14:00 → 14:30 Spin Polarization and Spin Correlation in Relativistic Heavy-Ion Collisions; (Remote)

Speaker: Shi Pu

14:30 → 15:00 Hyperon polarization measurements at RHIC and the LHC

Speaker: Zhenyu Chen

15:00 → 15:30 Initial-state and non-equilibrium effects on spin transport in nuclear collisions

Speaker: Di-Lun Yang (Academia Sinica)

15:30 → 16:00 Coffee

16:00 → 16:30 Exploring Nucleon Spin at RHIC: From PHENIX to sPHENIX

Speaker: Itaru Nakagawa

16:30 → 16:50 sPHENIX measurement of isolated-photon transverse single-spin asymmetry

Speaker: Ryotaro Koike

16:50 → 17:10 Measurement of transverse single spin asymmetry for forward neutral pions in diffractive and non-diffractive processes at RHICf and STAR

Speaker: Seunghwan Lee

17:10 → 17:40 GPDs measurements from COMPASS and Jlab

Speaker: Po-Ju Lin

17:40 → 18:00 Deeply Virtual Compton Scattering with CLAS12 and its foreseen upgrade at Jefferson Lab

Speaker: Adam Hoballah

Wednesday 28 October

09:00 → 09:30 Generalized Parton Distributions from Lattice QCD: Recent Progress with LaMET

Speaker: Huey-Wen Lin

09:30 → 10:00 Recent progress in TMD physics from lattice QCD; (Remote)

Speaker: Yong Zhao

10:00 → 10:20 TalkThe Collins-Soper kernel from a vacuum soft function

Speaker: Wayne Morris

10:20 → 10:50 Coffee

10:50 → 11:20 Transverse force densities in the nucleon from lattice QCD

Speaker: Ross Young

11:20 → 11:50 Vector-meson spin alignment measurements at RHIC and the LHC and new developments; (Remote)

Speaker: Frank Geurts

11:50 → 12:10 Local spin polarization by color-field correlators and momentum anisotropy

Speaker: Haesom Sung

12:10 → 14:00 Lunch

14:00 → 14:30 Emergence of Hadron Mass and Spin

Speaker: Craig Roberts

14:30 → 15:00 Parton Distribution Functions and their Generalizations

Speaker: Cedric Lorce (Ecole Polytechnique)

15:00 → 15:30 Equivalence Principle for spin, Ji's sum rule and friends; (Remote)

Speaker: Oleg Teryaev

15:30 → 16:00 Coffee

16:00 → 16:30 Polarization of dileptons in the Drell-Yan and Z-boson production

Speaker: Jen-Chieh Peng

16:30 → 17:00 Final Results from the Fermilab Muon g−2 Experiment

Speaker: Byungchul Yu

17:00 → 17:20 Higher-twist tensor polarization of the deuteron

Speaker: Kenshi Kuroki

17:20 → 17:40 Exact Spin Polarization in a Boost-Invariant Dirac Fluid

Speaker: Daniele Roselli

Thursday 29 October

09:00 → 09:30 From Scattering Events to Partonic Images: New Methods and Results from JAM

Speaker: Nobuo Sato

09:30 → 10:00 Global analysis of TMDs

Speaker: Tianbo Liu

10:00 → 10:20 Phenomenological results on pion parton distributions in TMD factorisation

Speaker: Valentin Moos

10:20 → 10:50 Coffee

10:50 → 11:20 Spin-spin entanglement at the Electron-Ion Collider

Speaker: Yoshitaka Hatta

11:20 → 11:40 Internal structure of exotic hadrons by high-energy reactions

Speaker: Shunzo Kumano

11:40 → 12:10 Discussion

12:10 → 13:00 Lunch

13:00 → 18:00 Excursion

18:00 → 20:00 Banquet

Friday 30 October

09:00 → 09:30 Spin Physics Detector project at NICA

Speaker: Alexey Guskov

09:30 → 10:00 GPDs study using hadron beams at J-PARC

Speaker: Natsuki Tomida

10:00 → 10:30 Nucleon spin measurements from SpinQuest and AMBER

Speaker: Kun Liu

10:30 → 11:00 Coffee

11:00 → 11:20 Nonperturbative Dynamical Origin of the Nucleon Spin

Speaker: June-Young Kim

11:20 → 11:40 Momentum dependent evolution of transverse angular momentum and boost distributions in nucleon

Speaker: Ravi Singh

11:40 → 12:10 Discussion

12:10 → 14:00 Lunch

14:00 → 14:30 The ePIC Experiment at the Electron-Ion Collider: From Detector Development to the Physics Program

Speaker: Taku Gunji

14:30 → 15:00 Transition GPDs and N-Δ non-diagonal DVCS at the EIC

Speaker: Hyeon-Dong Son

15:00 → 15:20 Early Science Opportunities with ePIC at the Electron-Ion Collider

Speaker: Carlos Munoz Camacho

15:20 → 15:50 Coffee

15:50 → 16:10 Probing the Eikonal Spin-Dependent Odderon: Challenges and Opportunities for the gluon Sivers function

Speaker: Florian Hechenberger

16:10 → 16:30 Strangeness in the mechanical structure of the nucleon and hyperons

Speaker: Hyun-Chul Kim

16:30 → 17:00 Discussion

17:00 → 17:15 Closing