Current Results on Light Hypernuclei in the WASA-FRS HypHI Experiment

@misc{rappold2026current,
  title = {{Current Results on Light Hypernuclei in the WASA-FRS HypHI Experiment}},
  author = {C. Rappold and P. Achenbach and H. Alibrahim Alfaki and F. Amjad and M. Armstrong and K. H. Behr and J. Benlliure and Z. Brencic and D. Calongue González and T. Dickel and V. Drozd and S. Dubey and H. Ekawa and S. Escrig and M. Feijoo-Fontan and H. Fujioka and Y. Gao and H. Geissel and F. Goldenbaum and A. Graña Gonzalez and E. Haettner and M. N. Harakeh and Y. He and H. Heggen and C. Hornung and N. Hubbard and K. Itahashi and M. Iwasaki and N. Kalantar-Nayestanaki and A. Kasagi and M. Kavatsyuk and E. Kazantseva and A. Khreptak and B. Kindler and R. Knoebel and H. Kollmus and D. Kostyleva and S. Kraft-Bermuth and N. Kurz and E. Liu and B. Lommel and V. Metag and S. Minami and D. J. Morrissey and P. Moskal and I. Mukha and A. Muneem and M. Nakagawa and K. Nakazawa and C. Nociforo and H. J. Ong and S. Pietri and J. Pochodzalla and S. Purushothaman and E. Rocco and J. L. Rodríguez-Sánchez and P. Roy and R. Ruber and T. R. Saito and S. Schadmand},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.00385},
  eprint = {2611.00385},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.00385},
}

TY  - UNPB
TI  - Current Results on Light Hypernuclei in the WASA-FRS HypHI Experiment
AU  - C. Rappold
AU  - P. Achenbach
AU  - H. Alibrahim Alfaki
AU  - F. Amjad
AU  - M. Armstrong
AU  - K. H. Behr
AU  - J. Benlliure
AU  - Z. Brencic
AU  - D. Calongue González
AU  - T. Dickel
AU  - V. Drozd
AU  - S. Dubey
AU  - H. Ekawa
AU  - S. Escrig
AU  - M. Feijoo-Fontan
AU  - H. Fujioka
AU  - Y. Gao
AU  - H. Geissel
AU  - F. Goldenbaum
AU  - A. Graña Gonzalez
AU  - E. Haettner
AU  - M. N. Harakeh
AU  - Y. He
AU  - H. Heggen
AU  - C. Hornung
AU  - N. Hubbard
AU  - K. Itahashi
AU  - M. Iwasaki
AU  - N. Kalantar-Nayestanaki
AU  - A. Kasagi
AU  - M. Kavatsyuk
AU  - E. Kazantseva
AU  - A. Khreptak
AU  - B. Kindler
AU  - R. Knoebel
AU  - H. Kollmus
AU  - D. Kostyleva
AU  - S. Kraft-Bermuth
AU  - N. Kurz
AU  - E. Liu
AU  - B. Lommel
AU  - V. Metag
AU  - S. Minami
AU  - D. J. Morrissey
AU  - P. Moskal
AU  - I. Mukha
AU  - A. Muneem
AU  - M. Nakagawa
AU  - K. Nakazawa
AU  - C. Nociforo
AU  - H. J. Ong
AU  - S. Pietri
AU  - J. Pochodzalla
AU  - S. Purushothaman
AU  - E. Rocco
AU  - J. L. Rodríguez-Sánchez
AU  - P. Roy
AU  - R. Ruber
AU  - T. R. Saito
AU  - S. Schadmand
PY  - 2026
DA  - 2026/11/01
PB  - arXiv
DO  - 10.48550/arxiv.2611.00385
UR  - https://arxiv.org/abs/2611.00385
AB  - The current understanding of light hypernuclei, subatomic nuclei exhibiting strangeness, is being actively investigated by several collaborations. Recent studies employing high-energy heavy-ion beams have revealed unexpected results for the three-body bound state ^3_ΛH, known as the hypertriton. Experimental measurements of its lifetime and binding energy across multiple experiments have produced a puzzling situation referred to as the ``hypertriton puzzle''. This puzzle is the central focus of the data analysis from the WASA-FRS HypHI experiment at GSI-FAIR within the SuperFRS Experiment collaboration. Light hypernuclei are being investigated using 1.96 GeV/u ^6Li beams impinging on a fixed carbon target, in conjunction with the WASA detector system and the Fragment Separator (FRS) at GSI-FAIR. The WASA-FRS experimental campaign was carried out during the first quarter of 2022. The primary objective of the experiment is to measure the lifetimes of ^3_ΛH and ^4_ΛH. The possible observation of the nnΛ state constitutes the second component of the WASA-FRS research program. This contribution provides an overview of our investigation of hypernuclei. Focusing on the WASA-FRS HypHI experiment, details of the current analysis status are presented.
ER  -