34 citations · 275 across the 19 of their papers we have counts for
19 papers
Entanglement of back-to-back gluon pair
Lei Yang, Wen-Hao Yao, Yu-Kun Song +1
We investigate the polarization correlation of back-to-back gluon pairs in unpolarized collisions and compute their density matrix. For gluon pairs produced through …
Gluon Polarimetry with Energy-Energy Correlators
Yu-Kun Song, Shu-Yi Wei, Lei Yang +1
We propose a novel method to probe gluon linear polarization via energy correlations in hard scattering processes. This approach exploits the characteristic azimuthal mod…
Transverse spin polarization as a novel probe of medium-induced transverse-momentum-broadening effect
Xin-yu Qin, Yu-Kun Song, Shu-yi Wei
The transverse polarization of hyperons within unpolarized jets originates from the transverse-momentum-dependent (TMD) fragmentation function . In…
Helicity correlation of neighboring dihadron
Fei Huang, Tianbo Liu, Yu-Kun Song +1
The spin correlation of final-state hadrons provides a novel platform to explore the hadronization mechanism of polarized partons in unpolarized high-energy collisions. In this wor…
Transverse spin correlation of back-to-back dihadron in unpolarized collisions
Lei Yang, Yu-Kun Song, Shu-Yi Wei
The spin correlation of back-to-back dihadron emerges in unpolarized high-energy collision, empowering unpolarized experiments to shed light on the spin-dependent fragmentation fun…
Transverse polarization of Lambda hyperons in hadronic collisions
Ying Gao, Kai-Bao Chen, Yu-Kun Song +1
The transverse polarization of hyperon within reconstructed jets in hadronic collisions offers a complementary platform to probe the polarized fragmentation function $D_{1T}^\p…
The decay contribution to the parity-odd fragmentation functions
Yan-Lei Pan, Kai-Bao Chen, Yu-Kun Song +1
Parity violation in QCD is a consequence of the so-called QCD -vacuum. As a result, parity-odd fragmentation functions are introduced and they bring in new observables in the ba…
Several Topics on Transverse Momentum-Dependent Fragmentation Functions
Kai-Bao Chen, Tianbo Liu, Yu-Kun Song +1
The hadronization of a high-energy parton is described by fragmentation functions which are introduced through QCD factorizations. While the hadronization mechanism per se remains…
Longitudinal and transverse polarizations of hyperon in unpolarized SIDIS and annihilation
Kai-bao Chen, Zuo-tang Liang, Yu-kun Song +1
We make a systematic study of hyperon polarizations in unpolarized lepton induced semi-inclusive reactions such as and . We present the general f…
Isospin Symmetry of Fragmentation Functions
Kai-bao Chen, Zuo-tang Liang, Yan-lei Pan +2
We make a systematic study of the isospin symmetry of fragmentation functions by taking decay contributions into account. We assume the isospin symmetry in strong interactions and…
The Spin Alignment of Vector Mesons in High Energy pp Collisions
Kai-bao Chen, Zuo-tang Liang, Yu-kun Song +1
The spin alignment of vector meson produced in high energy reactions is determined by the spin-dependent fragmentation function that is shown to be independent of…
Twist-4 contributions to semi-inclusive deeply inelastic scatterings with polarized beam and target
Shu-yi Wei, Yu-kun Song, Kai-bao Chen +1
We present for the first time the complete twist-4 result for the semi-inclusive deeply inelastic scattering with polarized electron and proton beams at the tree…
Leading and higher twist contributions in semi-inclusive e+e- annihilation at high energies
Shu-Yi Wei, Kai-bao Chen, Yu-kun Song +1
By applying the collinear expansion to the semi-inclusive hadron production process at high energies, we construct a theoretical framework where the le…
Nuclear suppression of azimuthal asymmetries in semi-inclusive deep inelastic scattering off polarized targets
Yu-kun Song, Zuo-tang Liang, Xin-Nian Wang
We extend the study of nuclear dependence of the transverse momentum dependent parton distribution functions and azimuthal asymmetries to semi-inclusive deep inelastic scattering (…
Higher twist contribution to fragmentation function in inclusive hadron production in e^+e^- annihilation
Shu-yi Wei, Yu-kun Song, Zuo-tang Liang
We apply collinear expansion to inclusive hadron production in annihilation and derive a formalism suitable for systematic study of leading as well as higher twist contrib…
Negative Off-Diagonal Conductivities in a Weakly Coupled Quark Gluon Plasma
Jiunn-Wei Chen, Yen-Fu Liu, Shi Pu +2
We calculate the conductivity matrix of a weakly coupled quark-gluon plasma at the leading-log order. By setting all quark chemical potentials to be identical, the diagonal conduct…
Azimuthal asymmetries in semi-inclusive DIS with polarized beam and/or target and their nuclear dependences
Yu-kun Song, Jian-hua Gao, Zuo-tang Liang +1
Using the formalism obtained from collinear expansion, we calculate the differential cross section and azimuthal asymmetries in semi-inclusive deeply inelastic lepton-nucleon (nucl…
Shear and Bulk Viscosities of a Weakly Coupled Quark Gluon Plasma with Finite Chemical Potential and Temperature---Leading-Log Results
Jiunn-Wei Chen, Yen-Fu Liu, Yu-Kun Song +1
We calculate the shear (eta) and bulk (zeta) viscosities of a weakly coupled quark gluon plasma at the leading-log order with finite temperature T and quark chemical potential mu.…
Double spin asymmetry A_{LT} in direct photon production
Zuo-Tang Liang, Andreas Metz, Daniel Pitonyak +3
We study the longitudinal-transverse double spin asymmetry for direct photon production in nucleon-nucleon scattering by using the collinear twist-3 approach. This asymmet…