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

27–30 Oct 2026
Institute of Physics, Academia Sinica
Asia/Taipei timezone

Secretary, Ms. Emily Hsi

Contribution List

63 out of 63 displayed
  1. 35. Registration
    27/10/2026, 08:30
  2. 34. PacificSpin Symposium -- An introduction
    27/10/2026, 09:00
  3. 36. Talk
    27/10/2026, 09:20
  4. 37. Talk
    27/10/2026, 09:50
  5. 38. Talk
    27/10/2026, 10:50
  6. 39. Talk
    27/10/2026, 11:20
  7. 98. Talk
    27/10/2026, 11:50
  8. 40. Talk
    27/10/2026, 14:00
  9. 41. Talk
    27/10/2026, 14:30
  10. 99. Talk
    27/10/2026, 15:00
  11. 42. Talk
    27/10/2026, 16:00
  12. 43. Talk
    27/10/2026, 16:30
  13. 44. Talk
    27/10/2026, 17:00
  14. 97. Talk
    27/10/2026, 17:20
  15. 45. Talk
    28/10/2026, 09:00
  16. 46. Talk
    28/10/2026, 09:30
  17. 47. Talk
    28/10/2026, 10:00
  18. 48. Talk
    28/10/2026, 10:50
  19. 49. Talk
    28/10/2026, 11:20
  20. 100. Talk
    28/10/2026, 11:50
  21. 50. Talk
    28/10/2026, 14:00
  22. 51. Talk
    28/10/2026, 14:30
  23. 101. Talk
    28/10/2026, 15:00
  24. 52. Talk
    28/10/2026, 16:00
  25. 53. Talk
    28/10/2026, 16:30
  26. 54. Talk
    28/10/2026, 17:00
  27. 102. Talk
    28/10/2026, 17:20
  28. 55. Talk
    29/10/2026, 09:00
  29. 56. Talk
    29/10/2026, 09:30
  30. 57. Talk
    29/10/2026, 10:00
  31. 58. Talk
    29/10/2026, 10:50
  32. 103. Talk
    29/10/2026, 11:20
  33. 59. Discussion
    29/10/2026, 11:40
  34. 60. Excursion
    29/10/2026, 13:00
  35. 61. Banquet
    29/10/2026, 18:00
  36. 62. Talk
    30/10/2026, 09:00
  37. 63. Talk
    30/10/2026, 09:30
  38. 64. Talk
    30/10/2026, 10:00
  39. 65. Talk
    30/10/2026, 10:50
  40. 104. Talk
    30/10/2026, 11:20
  41. 66. Discussion
    30/10/2026, 11:40
  42. 67. Talk
    30/10/2026, 14:00
  43. 68. Talk
    30/10/2026, 14:30
  44. 69. Talk
    30/10/2026, 15:00
  45. 105. Talk
    30/10/2026, 16:00
  46. 106. Talk
    30/10/2026, 16:30
  47. 107. Talk
    30/10/2026, 16:50
  48. 70. Discussion
    30/10/2026, 17:10
  49. 71. Closing
    30/10/2026, 17:45
  50. 76. Deeply Virtual Compton Scattering with CLAS12 and its foreseen upgrade at Jefferson Lab
    Adam Hoballah (IJCLab, Université Paris-Saclay, CNRS-IN2P3)

    A key step toward a better understanding of the nucleon structure is the study of Generalized Parton Distributions (GPDs). GPDs are nowadays the object of an intense effort of research since they convey an image of the nucleon structure where the longitudinal momentum and the transverse position of the partons inside the nucleon are correlated. Moreover, GPDs give access, via Ji's sum rule, to...

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  51. 96. Early Science Opportunities with ePIC at the Electron-Ion Collider
    Carlos Munoz Camacho

    The Electron-Ion Collider (EIC), with ePIC as its first general-purpose detector, will deliver high-impact measurements during its first year of operation. Even before reaching full design luminosity and beam energy, anticipated early running configurations will provide broad opportunities in electron-proton and electron-ion collisions.

    This presentation will summarize the projected...

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  52. 84. Energy Momentum Tensor Form Factors of the Proton: From JLab to EIC
    Zein-Eddine Meziani (Argonne National Laboratory)

    I shall describe the most recent results of the J/$\psi$-007 experiment in Hall C at Jefferson Lab. The doubly differential cross section, both in photon energy $(E_{\gamma}$ and momentum transfer ($t$), for the near-threshold photoproduction of J/$\psi$ on the nucleon through its J/$\psi$ muon-decay channel, is compared to all available electron-decay channel data from Jefferson Lab, namely...

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  53. 82. Exact Spin Polarization in a Boost-Invariant Dirac Fluid
    Daniele Roselli (University of Florence & INFN Florence, Chinese University of Hong Kong)

    Understanding spin polarization in the quark–gluon plasma is a key problem for relativistic spin hydrodynamics and heavy-ion phenomenology. We present an exactly solvable boost-invariant system of non-interacting Dirac fermions in local thermodynamic equilibrium with finite canonical spin potential. This setup allows us to compute exact expectation values of spin polarization, spin density,...

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  54. 81. Higher-twist tensor polarization of the deuteron
    Kenshi Kuroki (Institute of Modern Physics, CAS)

    Spin-1 hadrons provide a unique opportunity to investigate tensor polarization, leading to novel partonic structures absent in spin-1/2 hadrons. Motivated by ongoing and future measurements at facilities such as JLab, it is important to clarify the role of higher-twist contributions, which may become significant in the moderate-$Q^2$ region. In this work [1], we study the tensor-polarized...

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  55. 80. Internal structure of exotic hadrons by high-energy reactions
    Shunzo Kumano (IMP / KEK)

    In recent years, there are experimental reports on exotic-hadron candidates, which have different quark configurations from ordinary $q\bar q$ and $qqq$ constituents. However, it is not easy to confirm their exotic nature from global observables such as masses, spins, parities, and decay widths. At high energies, internal quark and gluon configurations could become more apparent because...

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  56. 87. Local spin polarization by color-field correlators and momentum anisotropy
    Haesom Sung (Academia Sinica)

    We study the local spin polarization of quarks induced by color-field correlators stemming from the correlation of chromo-Lorentz force and chromo-magnetic polarization or chromo-spin Hall effect in the presence of momentum anisotropy. Such effects can trigger longitudinal polarization from fluctuating color fields in glasma or quark gluon plasma phases with transverse expansion for...

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  57. 108. Measurement of Transverse Single Spin Asymmetry (AN) of Neutral Pions (π 0 ) using Transversely Polarized p↑p collisions at STAR
    Ananya Paul (UCR)

    Transverse Single Spin Asymmetry (AN ) is an azimuthal or left-right asymmetry observed in the distribution of final-state scattered particles produced in transversely polarized proton-proton (pp) collisions. This asymmetry arises from fundamental Transverse Momentum Dependent (TMD) and Twist-3 mechanisms involving the interplay between transverse momentum and spin of the participating partons...

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  58. 93. Measurement of transverse single spin asymmetry for forward neutral pions in diffractive and non-diffractive processes at RHICf and STAR
    Seunghwan Lee (Sejong Univ., RIKEN)

    Over the past several decades, numerous experiments have observed nonzero transverse single-spin asymmetries ($A_{\mathrm{N}}$) in forward hadron production. Although theoretical frameworks have been developed to describe these phenomena, their underlying mechanisms are not yet fully understood. The RHICf Collaboration reported a large non-zero $A_{\mathrm{N}}$ for forward neutral pion...

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  59. 72. Momentum dependent evolution of transverse angular momentum and boost distributions in pion and nucleon
    Ravi Singh (Indian Institute of Technology Bombay)

    We present a detailed investigation of the relativistic spatial structure of transverse angular momentum, including both orbital and intrinsic spin, and examine how these quantities are modified by boost effects. Using the quantum phase-space (Wigner) formalism, we begin with three-dimensional spatial distributions of transverse orbital angular momentum, intrinsic spin, and boost in an...

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  60. 85. Phenomenological results on pion parton distributions in TMD factorisation
    Valentin Moos (NYCU)

    We present an extraction for the unpolarised transverse momentum dependent (TMD) parton distribution functions (PDFs) for the quarks in the pion from measurements of the Drell-Yan process.
    The results are obtained from a fit of the non-perturbative part of the TMDPDFs in the framework of TMD factorisation
    and rely on the non-perturbative input for the collinear PDFs.

    As the data is...

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  61. 92. Probing the Eikonal Spin-Dependent Odderon: Challenges and Opportunities for the gluon Sivers function
    Florian Hechenberger (Stony Brook University)

    The gluon Sivers function (GSF) is a central object in the study of the proton's 3D structure, encoding the intrinsic correlation between gluon transverse momentum and the transverse spin of the nucleon. Beyond its importance for proton tomography, the GSF fundamentally links parton orbital angular momentum and single spin asymmetries to the spin-dependent Odderon, rendering it particularly...

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  62. 89. sPHENIX measurement of isolated-photon transverse single-spin asymmetry
    Ryotaro Koike (Kyoto University)

    The transverse single-spin asymmetry, $A_N$, in isolated-photon production in transversely polarized $p^{\uparrow}+p$ collisions is of particular interest for studies of polarized proton structure. Isolated photons provide a clean probe of initial-state spin-dependent parton dynamics, as they are largely insensitive to final-state interactions and are dominated by quark–gluon scattering at...

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  63. 90. Strangeness in the mechanical structure of the nucleon and hyperons
    Hyun-Chul Kim (Inha University)

    We present a systematic study of the gravitational (energy-momentum tensor) form factors of the nucleon and the baryon octet within the pion mean-field approach (chiral quark-soliton model), focusing on the role of the strange quark in the mechanical structure of baryons. Carrying out the flavor decomposition of the mass ($A$), angular-momentum ($J$), $D$-term, and $\bar{c}$ form factors, we...

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