Document Type
Article
Publication Date
2021
DOI
10.1103/PhysRevLett.127.272303
Publication Title
Physical Review Letters
Volume
127
Issue
27
Pages
272303 (1-7)
Abstract
Strange matter is believed to exist in the cores of neutron stars based on simple kinematics. If this is true, then hyperon-nucleon interactions will play a significant part in the neutron star equation of state. Yet, compared to other elastic scattering processes, there is very little data on Λ-N scattering. This experiment utilized the CEBAF Large Acceptance Spectrometer (CLAS) detector to study the Λp→Λp elastic scattering cross section in the incident Λ momentum range 0.9-2.0 GeV/c. These are the first data on this reaction since the 1970s. The new cross sections have significantly better accuracy and precision than the existing world data, and the techniques developed here can also be used in future experiments.
Original Publication Citation
Rowley, J., Compton, N., Djalali, C. ... Yurov, M., Zhang, J., & Zhao, Z. W. (2021) Improved Λp elastic scattering cross sections between 0.9 and 2.0 GeV/c as a main ingredient of the neutron star equation of state. Physical Review Letters, 127(27), 1-7, Article 272303. https://doi.org/10.1103/PhysRevLett.127.272303
ORCID
0000-0002-4136-2572 (Bulumulla), 0000-0003-2243-6836 (Kuhn), 0000-0002-3598-4594 (Pandey),
Repository Citation
Rowley, J.; Compton, N.; Djalali, C.; Adhikari, Krishna P.; Bulumulla, Dilini L.; Hattawy, Mohammad; Kuhn, Sebastian E.; Pandey, Pushpa; Prok, Yelena; Yurov, M.; Zhang, J.; Zhao, Z. W.; et al.; and CLAS Collaboration, "Improved Λp Elastic Scattering Cross Sections Between 0.9 and 2.0 GeV/c as a Main Ingredient of the Neutron Star Equation of State" (2021). Physics Faculty Publications. 564.
https://digitalcommons.odu.edu/physics_fac_pubs/564
Comments
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.