Scholars@Duke publication: Beam-spin asymmetry Σ for Σ− hyperon photoproduction off the neutron

Beam-spin asymmetry Σ for Σ− hyperon photoproduction off the neutron

Publication , Journal Article

Zachariou, N; Munevar, E; Berman, BL; Bydžovský, P; Cieplý, A; Feldman, G; Ilieva, Y; Nadel-Turonski, P; Skoupil, D; Sarantsev, AV; Watts, DP ...

Published in: Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

April 10, 2022

Published version (DOI)

We report a new measurement of the beam-spin asymmetry, Σ, for the γ→n→K⁺Σ⁻ reaction using quasi-free neutrons in a liquid-deuterium target. The new dataset includes data at previously unmeasured photon energy and angular ranges, thereby providing new constraints on partial wave analyses used to extract properties of the excited nucleon states. The experimental data were obtained using the CEBAF Large Acceptance Spectrometer (CLAS), housed in Hall B of the Thomas Jefferson National Accelerator Facility (JLab). The CLAS detector measured reaction products from a liquid-deuterium target produced by an energy-tagged, linearly polarised photon beam with energies in the range 1.1 to 2.3 GeV. Predictions from an isobar model indicate strong sensitivity to N(1720)3/2⁺, Δ(1900)1/2⁻, and N(1895)1/2⁻, which corroborates results from a recent combined analysis of all KΣ channels. When our data are incorporated in the fits of partial-wave analyses, one observes significant changes in γ-n couplings of resonances which have small branching ratios to the πN channel.

Duke Scholars

Author Anselm G. Vossen Physics

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2022.136985

ISSN

0370-2693

Publication Date

April 10, 2022

Volume

827

Related Subject Headings

Nuclear & Particles Physics
51 Physical sciences
49 Mathematical sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences
0105 Mathematical Physics

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APA

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MLA

NLM

Zachariou, N., Munevar, E., Berman, B. L., Bydžovský, P., Cieplý, A., Feldman, G., … Mirazita, M. (2022). Beam-spin asymmetry Σ for Σ− hyperon photoproduction off the neutron. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 827. https://doi.org/10.1016/j.physletb.2022.136985

Zachariou, N., E. Munevar, B. L. Berman, P. Bydžovský, A. Cieplý, G. Feldman, Y. Ilieva, et al. “Beam-spin asymmetry Σ for Σ− hyperon photoproduction off the neutron.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 827 (April 10, 2022). https://doi.org/10.1016/j.physletb.2022.136985.

Zachariou N, Munevar E, Berman BL, Bydžovský P, Cieplý A, Feldman G, et al. Beam-spin asymmetry Σ for Σ− hyperon photoproduction off the neutron. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2022 Apr 10;827.

Zachariou, N., et al. “Beam-spin asymmetry Σ for Σ− hyperon photoproduction off the neutron.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 827, Apr. 2022. Scopus, doi:10.1016/j.physletb.2022.136985.

Zachariou N, Munevar E, Berman BL, Bydžovský P, Cieplý A, Feldman G, Ilieva Y, Nadel-Turonski P, Skoupil D, Sarantsev AV, Watts DP, Amaryan MJ, Angelini G, Armstrong WR, Atac H, Avakian H, Barion L, Bashkanov M, Battaglieri M, Bedlinskiy I, Benmokhtar F, Bianconi A, Biondo L, Biselli AS, Bondi M, Bossù F, Boiarinov S, Briscoe WJ, Brooks WK, Bulumulla D, Burkert VD, Carman DS, Carvajal JC, Celentano A, Chatagnon P, Chetry T, Ciullo G, Clark L, Cole PL, Contalbrigo M, Costantini G, Crede V, D’Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Diehl S, Djalali C, Dupre R, Dugger M, Egiyan H, Ehrhart M, El Alaoui A, El Fassi L, Eugenio P, Fedotov G, Fegan S, Filippi A, Fradi A, Gavalian G, Gilfoyle GP, Girod FX, Gleason C, Golubenko AA, Gothe RW, Griffioen KA, Guidal M, Hafidi K, Hakobyan H, Hattawy M, Hayward TB, Heddle D, Hicks K, Hobart A, Holtrop M, Ireland DG, Isupov EL, Jenkins D, Jo HS, Joo K, Keller D, Khanal A, Khandaker M, Kim A, Klein FJ, Kripko A, Kubarovsky V, Lanza L, Leali M, Livingston K, MacGregor IJD, Marchand D, Markov N, Marsicano L, Mascagna V, McKinnon B, Migliorati S, Mineeva T, Mirazita M. Beam-spin asymmetry Σ for Σ− hyperon photoproduction off the neutron. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2022 Apr 10;827.

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2022.136985

ISSN

0370-2693

Publication Date

April 10, 2022

Volume

827

Related Subject Headings

Nuclear & Particles Physics
51 Physical sciences
49 Mathematical sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences
0105 Mathematical Physics