Transverse-spin dependent energy-energy correlators in proton-proton collisions within the dihadron fragmentation framework

@misc{kang2026transversespin,
  title = {{Transverse-spin dependent energy-energy correlators in proton-proton collisions within the dihadron fragmentation framework}},
  author = {Zhong-Bo Kang and Andreas Metz and Daniel Pitonyak and Congyue Zhang},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2607.02441},
  eprint = {2607.02441},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.02441},
}

TY  - UNPB
TI  - Transverse-spin dependent energy-energy correlators in proton-proton collisions within the dihadron fragmentation framework
AU  - Zhong-Bo Kang
AU  - Andreas Metz
AU  - Daniel Pitonyak
AU  - Congyue Zhang
PY  - 2026
DA  - 2026/10/02
PB  - arXiv
DO  - 10.48550/arxiv.2607.02441
UR  - https://arxiv.org/abs/2607.02441
AB  - We calculate energy-energy correlations for two hadrons produced inside a jet in transversely polarized proton-proton collisions. We make numerical predictions based on a simple model that utilizes a previous global QCD analysis of dihadron fragmentation and transversity parton distribution functions. The results show remarkable agreement with a very recent STAR measurement. We also find the data at large jet transverse momentum have a slight preference for extractions of transversity that are consistent with lattice QCD computations of the nucleon tensor charges. Overall, this work provides further evidence for the underlying non-perturbative mechanism of near-side energy-energy correlators as well as highlights the potential for these observables to probe transverse-spin effects inside the nucleon.
ER  -