SINGLE K MESON AND 2π, π<SUB>ρ</SUB> EXCHANGES IN THE Λ-N INTERACTION

Wu HUI-FANG; SHEN JIAN-PING; YU YOU-WEN; ZHANG ZONG-YE

Chinese Physics C> 1981, Vol. 5> Issue(3) : 334-338

SINGLE K MESON AND 2π, π_ρ EXCHANGES IN THE Λ-N INTERACTION

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Abstract：
The purpose of this paper is to study, the A-N interaction by using meson exchange theory. We have considered three processes: ⅰ) Single K meson exchange, ⅱ) Box diagrams of 2π and πρ exchanges with a nucleon in the intermediate states, and ⅲ) Box diagrams of 2π and πρ exchange with an isobar in the intermediate states. For simplicity, two approximations are used in the calculation. First, the initial nucleon N and hyperon are considered to be at rest. Second, an average value is used for the energies of the intermediate states. The results are qualitatively consistent with experiments.

References

[1]

G. Baekenetoae et al., Contemp. Phys., 15(1974), 197; A. Eamberger et al., Phys. Lett., 36B (1971), 412; Nucl. Phys, B60(1973) 1.[2] J.W.Dureo, M. Saarela, G. E. Brown and A. D. Jackson, Nucl. Phys. A278(1977), 445; A. M.Green, Proc. Int. Conf. on Nuclear 6trueture, Tokyo, 1977; J. Phys. Soc., Japan, 44(1978),Supp1 p. 43.[3] M. M. Nagels et al., Nucl. Phys. B109(1978), 1;M. 8aarela ACTA UNIVEBBITIB OULU-ENBIB, Rerum Naturalium, No. 54, Phyeiea, No. 13.

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Wu HUI-FANG, SHEN JIAN-PING, YU YOU-WEN and ZHANG ZONG-YE. SINGLE K MESON AND 2π, π_ρ EXCHANGES IN THE Λ-N INTERACTION[J]. Chinese Physics C, 1981, 5(3): 334-338.

Wu HUI-FANG, SHEN JIAN-PING, YU YOU-WEN and ZHANG ZONG-YE. SINGLE K MESON AND 2π, π_ρ EXCHANGES IN THE Λ-N INTERACTION[J]. Chinese Physics C, 1981, 5(3): 334-338. shu

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Received: 1980-04-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

SINGLE K MESON AND 2π, π_ρ EXCHANGES IN THE Λ-N INTERACTION

Received Date: 1980-04-01
Accepted Date: 1900-01-01
Available Online: 1981-06-05

Abstract: The purpose of this paper is to study, the A-N interaction by using meson exchange theory. We have considered three processes: ⅰ) Single K meson exchange, ⅱ) Box diagrams of 2π and πρ exchanges with a nucleon in the intermediate states, and ⅲ) Box diagrams of 2π and πρ exchange with an isobar in the intermediate states. For simplicity, two approximations are used in the calculation. First, the initial nucleon N and hyperon are considered to be at rest. Second, an average value is used for the energies of the intermediate states. The results are qualitatively consistent with experiments.