New Neutron Polarizabilities from Deuterium Compton Scattering at HIγS

Abstract

Elastic and inelastic Compton-scattering cross sections of the deuteron were measured at HIγS using a circularly polarized, quasi-monoenergetic γ-ray beam (61.0 MeV). Scattered γ rays from a liquid deuterium target were detected at 55^∘, 115^∘, and 150^∘. High-resolution NaI(Tl) detectors at backward angles enabled separation of elastic and inelastic events. A χEFT analysis of the data yields new neutron scalar polarizabilities, αⁿ_E1 = 12.25 ± 1.1(stat) ± 0.3(BSR) ± 0.8(th) and βⁿ_M1 = 2.95 ∓ 1.1(stat) ∓ 0.3(BSR) ∓ 0.8(th) (in units of 10⁻⁴ fm³) reducing statistical uncertainties by 12 %.

Precision Sum Rule for Nucleon Isovector Polarizabilities and the Proton-Neutron Mass Difference
Xiong-Hui Cao, Ling-Yun Dai, Feng-Kun Guo
arXiv25 Oct 2026PreprintarXiv licenceFull textHigh-energy & particle physics Nuclear physicsarXiv
Beam filamentation instability drives deuterium-tritium fusion with polarized neutron emission
Guanqi Qiu, Deji Liu, Dongchi Cai +3
arXiv8 Oct 2026PreprintCC BY-NC-ND 4.0Full textApplied physics & instrumentation Nuclear physicsarXiv
Gravitational Compton scattering at the fourth post-Minkowskian order
Giacomo Brunello, Mario Meo, Sid Smith
arXiv25 Oct 2026PreprintCC BY 4.0Full textGravitation & general relativity High-energy & particle physicsarXiv
Quantum circuit representation and incomplete Bell measurements in Compton scattering
Wei Xie, Yu-Chen Guo, Shuang Li +1
arXiv11 Oct 2026PreprintarXiv licenceFull textHigh-energy & particle physics Quantum physics & quantum informationarXiv
Coherent deeply virtual Compton scattering on helium-4 beyond the leading twist approximation
V. Martínez-Fernández, B. Pire, P. Sznajder +1
arXiv18 Sep 2026PreprintarXiv licenceFull textHigh-energy & particle physics Nuclear physicsarXiv

Cite

BibTeX RIS

BibTeX

@misc{godagama2026neutron,
  title = {{New Neutron Polarizabilities from Deuterium Compton Scattering at HI$γ$S}},
  author = {D. Godagama and M. W. Ahmed and B. Crowe and G. Feldman and F. Friesen and H. Gao and H. W. Grießhammer and D. Hornidge and C. R. Howell and H. J. Karwowski and M. A. Kovash and K. K. H. Leung and M. Lewis and C. Malone and E. Mancil and D. Markoff and J. A. McGovern and S. Mikhailov and D. R. Phillips and M. H. Sikora and Y. K. Wu and J. Zhou},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.06609},
  eprint = {2611.06609},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.06609},
  note = {CC BY 4.0},
}

RIS

TY  - UNPB
TI  - New Neutron Polarizabilities from Deuterium Compton Scattering at HIγS
AU  - D. Godagama
AU  - M. W. Ahmed
AU  - B. Crowe
AU  - G. Feldman
AU  - F. Friesen
AU  - H. Gao
AU  - H. W. Grießhammer
AU  - D. Hornidge
AU  - C. R. Howell
AU  - H. J. Karwowski
AU  - M. A. Kovash
AU  - K. K. H. Leung
AU  - M. Lewis
AU  - C. Malone
AU  - E. Mancil
AU  - D. Markoff
AU  - J. A. McGovern
AU  - S. Mikhailov
AU  - D. R. Phillips
AU  - M. H. Sikora
AU  - Y. K. Wu
AU  - J. Zhou
PY  - 2026
DA  - 2026/11/04
PB  - arXiv
DO  - 10.48550/arxiv.2611.06609
UR  - https://arxiv.org/abs/2611.06609
AB  - Elastic and inelastic Compton-scattering cross sections of the deuteron were measured at HIγS using a circularly polarized, quasi-monoenergetic γ-ray beam (61.0 MeV). Scattered γ rays from a liquid deuterium target were detected at 55^∘, 115^∘, and 150^∘. High-resolution NaI(Tl) detectors at backward angles enabled separation of elastic and inelastic events. A χEFT analysis of the data yields new neutron scalar polarizabilities, α^n_E1 = 12.25 ± 1.1(stat) ± 0.3(BSR) ± 0.8(th) and β^n_M1 = 2.95 ∓ 1.1(stat) ∓ 0.3(BSR) ∓ 0.8(th) (in units of 10^−4 fm^3) reducing statistical uncertainties by 12 %.
ER  -

Abstract

Related

Cite