Photoproduction of the f₂(1270) Meson Using the CLAS Detector

Authors

Krishna P. Adhikari, Old Dominion University
Moskov J. Amaryan, Old Dominion UniversityFollow
Dilini Bulumulla, Old Dominion UniversityFollow
Mohammad Hattawy, Old Dominion UniversityFollow
G. Gavalian, Old Dominion University
Charles E. Hyde, Old Dominion UniversityFollow
Yelena Prok, Old Dominion UniversityFollow
J. Zhang, Old Dominion University
et al.
CLAS Collaboration

Document Type

Article

Publication Date

2021

DOI

10.1103/PhysRevLett.126.082002

Publication Title

Physical Review Letters

Volume

126

Issue

8

Pages

1-6

Abstract

The quark structure of the f₂(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq⁻) resonance with quantum numbers J^PC = 2⁺⁺. Recently, it was proposed that the f₂(1270) is a molecular state made from the attractive interaction of two 𝜌 mesons. Such a state would be expected to decay strongly to final states with charged pions due to the dominant decay 𝜌 → π⁺π^-, whereas decay to two neutral pions would likely be suppressed. Here, we measure for the first time the reaction 𝛾p -> π⁰π⁰p, using the CEBAF Large Acceptance Spectrometer detector at Jefferson Lab for incident beam energies between 3.6 and 5.4 GeV. Differential cross sections, dσ/dt, for f₂(1270) photoproduction are extracted with good precision due to low backgrounds and are compared to theoretical calculations.

Comments

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© 2021 The American Physical Society

Publisher's version available at: https://doi.org/10.1103/PhysRevLett.126.082002

Original Publication Citation

Adhikari, K.P., Amaryan, M.J., Bulumulla, D., Hattawy, M., Gavalian, G., Hyde, C.E., Prok, Yelena, et al., CLAS Collaboration (2021). Photoproduction of the f₂(1270) meson using the CLAS detector. Physical Review Letters, 126(8), 1-6, Article 082002. https://doi.org/10.1103/PhysRevLett.126.082002

ORCID

0000-0001-7282-8120 (Hyde)

Repository Citation

Adhikari, Krishna P.; Amaryan, Moskov J.; Bulumulla, Dilini; Hattawy, Mohammad; Gavalian, G.; Hyde, Charles E.; Prok, Yelena; Zhang, J.; et al.; and CLAS Collaboration, "Photoproduction of the f₂(1270) Meson Using the CLAS Detector" (2021). Physics Faculty Publications. 479.
https://digitalcommons.odu.edu/physics_fac_pubs/479