Femtoscopy Measurement with SπRIT TPC in Radioactive BeamHeavy-ion Collisions

@misc{wang2026femtoscopy,
  title = {{Femtoscopy Measurement with S$π$RIT TPC in Radioactive BeamHeavy-ion Collisions}},
  author = {Y. J. Wang and C. K. Tam and Z. G. Xiao and W. G. Lynch and C. Y. Tsang and J. Barney and G. Jhang and J. Estee and M. B. Tsang and R. S. Wang and M. Kaneko and J. W. Lee and J. Park and Z. Chajęcki and G. Verde and T. Isobe and M. Kurata-Nishimura and T. Murakami and D. S. Ahn and L. Atar and T. Aumann and H. Baba and K. Boretzky and J. Brzychczyk and G. Cerizza and N. Chiga and N. Fukuda and I. Gasparic and B. Hong and A. Horvat and K. Ieki and N. Inabe and Y. J. Kim and T. Kobayashi and Y. Kondo and P. Lasko and H. S. Lee and Y. Leifels and J. Łukasik and J. Manfredi and A. B. McIntosh and P. Morfouace and T. Nakamura and N. Nakatsuka and S. Nishimura and H. Otsu and P. Pawłowski and K. Pelczar and D. Rossi and H. Sakurai and C. Santamaria and H. Sato and H. Scheit and R. Shane and Y. Shimizu and H. Simon and A. Snoch and A. Sochocka and T. Sumikama and H. Suzuki},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2607.24815},
  eprint = {2607.24815},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.24815},
}

TY  - UNPB
TI  - Femtoscopy Measurement with SπRIT TPC in Radioactive BeamHeavy-ion Collisions
AU  - Y. J. Wang
AU  - C. K. Tam
AU  - Z. G. Xiao
AU  - W. G. Lynch
AU  - C. Y. Tsang
AU  - J. Barney
AU  - G. Jhang
AU  - J. Estee
AU  - M. B. Tsang
AU  - R. S. Wang
AU  - M. Kaneko
AU  - J. W. Lee
AU  - J. Park
AU  - Z. Chajęcki
AU  - G. Verde
AU  - T. Isobe
AU  - M. Kurata-Nishimura
AU  - T. Murakami
AU  - D. S. Ahn
AU  - L. Atar
AU  - T. Aumann
AU  - H. Baba
AU  - K. Boretzky
AU  - J. Brzychczyk
AU  - G. Cerizza
AU  - N. Chiga
AU  - N. Fukuda
AU  - I. Gasparic
AU  - B. Hong
AU  - A. Horvat
AU  - K. Ieki
AU  - N. Inabe
AU  - Y. J. Kim
AU  - T. Kobayashi
AU  - Y. Kondo
AU  - P. Lasko
AU  - H. S. Lee
AU  - Y. Leifels
AU  - J. Łukasik
AU  - J. Manfredi
AU  - A. B. McIntosh
AU  - P. Morfouace
AU  - T. Nakamura
AU  - N. Nakatsuka
AU  - S. Nishimura
AU  - H. Otsu
AU  - P. Pawłowski
AU  - K. Pelczar
AU  - D. Rossi
AU  - H. Sakurai
AU  - C. Santamaria
AU  - H. Sato
AU  - H. Scheit
AU  - R. Shane
AU  - Y. Shimizu
AU  - H. Simon
AU  - A. Snoch
AU  - A. Sochocka
AU  - T. Sumikama
AU  - H. Suzuki
PY  - 2026
DA  - 2026/09/24
PB  - arXiv
DO  - 10.48550/arxiv.2607.24815
UR  - https://arxiv.org/abs/2607.24815
AB  - Femtoscopy is a powerful tool for exploring the dynamic emitting structure in heavy-ion collisions, while radioactive beam heavy-ion collisions enable the investigation of nuclear matter under extreme isospin conditions. Here, we successfully perform femtoscopy measurements using the SπRIT Time Projection Chamber (TPC). A dedicated correction scheme for track merging and splitting is proposed, which is well applicable to rectangular TPCs housed inside dipole magnets and effectively improves the reconstructed correlation functions at small relative momenta. Focusing on the proton-proton (p-p) correlation function in the 270 MeV/u ^132Sn+^124Sn system, we successfully apply the track merging and splitting correction; additionally, the TPC angular acceptance exhibits a negligible impact on the correlation function. A systematic uncertainty quantification framework is established. The experimental results of the p-p correlation function confirm the feasibility of the SπRIT TPC for femtoscopy measurements and provide technical support for high-precision femtoscopy studies using rectangular TPCs in radioactive beam heavy-ion collisions.
ER  -