Kaon-induced ϕ Σ production off the proton
- 1Soongsil University
Abstract
We investigate the reaction mechanism of K-p → ϕ Σ 0 K - p → ϕ Σ 0 within a hybrid Regge approach based on effective Lagrangians. The nonresonant background includes Reggeized t -channel K and K* K ∗ exchanges, together with ground-state Σ Σ and nucleon exchanges in the s and u channels, respectively. To describe the structures observed at 3.0 leqslant PLab leqslant 4.5 3.0 ⩽ P Lab ⩽ 4.5 GeV, we include the high-mass Σ (2620) Σ ( 2620 ) and Σ (3000) Σ ( 3000 ) resonances and examine the spin-parity assignments JP = 1/2± , J P = 1 / 2 ± , 3/2± , 3 / 2 ± , and 5/2± . 5 / 2 ± . The K* K ∗ -Reggeon exchange dominates the forward-angle cross sections, whereas the smaller K -Reggeon contribution is important for the total cross section at low energies and for the spin-density matrix elements. The nonresonant background alone is not sufficient to reproduce the local structures in the total cross section or the differential cross sections at large −t'. - t ′ . Including the two resonances, particularly the Σ (3000), Σ ( 3000 ) , substantially improves the agreement with the available data. The JP=5/2- J P = 5 / 2 - assignment for the Σ (3000) Σ ( 3000 ) provides a reasonable overall description, although the present data do not permit a definitive determination.
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BibTeX
@article{kim2026kaoninduced,
title = {{Kaon-induced $$\phi \Sigma $$ production off the proton}},
author = {Sang-Ho Kim and Myung-Ki Cheoun},
journal = {The European Physical Journal C},
year = {2026},
month = oct,
doi = {10.1140/epjc/s10052-026-16441-1},
url = {https://link.springer.com/10.1140/epjc/s10052-026-16441-1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Kaon-induced ϕ Σ production off the proton
AU - Sang-Ho Kim
AU - Myung-Ki Cheoun
PY - 2026
DA - 2026/10/07
JO - The European Physical Journal C
DO - 10.1140/epjc/s10052-026-16441-1
UR - https://link.springer.com/10.1140/epjc/s10052-026-16441-1
AB - We investigate the reaction mechanism of K^-p → ϕ Σ ^0 K - p → ϕ Σ 0 within a hybrid Regge approach based on effective Lagrangians. The nonresonant background includes Reggeized t -channel K and K^* K ∗ exchanges, together with ground-state Σ Σ and nucleon exchanges in the s and u channels, respectively. To describe the structures observed at 3.0 leqslant P_Lab leqslant 4.5 3.0 ⩽ P Lab ⩽ 4.5 GeV, we include the high-mass Σ (2620) Σ ( 2620 ) and Σ (3000) Σ ( 3000 ) resonances and examine the spin-parity assignments J^P = 1/2^± , J P = 1 / 2 ± , 3/2^± , 3 / 2 ± , and 5/2^± . 5 / 2 ± . The K^* K ∗ -Reggeon exchange dominates the forward-angle cross sections, whereas the smaller K -Reggeon contribution is important for the total cross section at low energies and for the spin-density matrix elements. The nonresonant background alone is not sufficient to reproduce the local structures in the total cross section or the differential cross sections at large −t'. - t ′ . Including the two resonances, particularly the Σ (3000), Σ ( 3000 ) , substantially improves the agreement with the available data. The J^P=5/2^- J P = 5 / 2 - assignment for the Σ (3000) Σ ( 3000 ) provides a reasonable overall description, although the present data do not permit a definitive determination.
SN - 1434-6044
SN - 1434-6052
ER -