Production of Λ-hypernuclei in A(p,K<SUP>+</SUP>)<SUB>Λ</SUB>B reactions

JING Han-Tao; SHEN Peng-Nian; JIANG Huan-Qing

doi:10.1088/1674-1137/32/12/005

Chinese Physics C> 2008, Vol. 32> Issue(12) : 962-971 DOI: 10.1088/1674-1137/32/12/005

Production of Λ-hypernuclei in A(p,K⁺)_ΛB reactions

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Abstract：
The production of Λ-hypernuclei in the A(p, K⁺)_ΛB reaction is investigated in the framework of the distorted wave impulse approximation(DWIA). The total cross sections and differential cross sections for various nuclear targets are calculated with an elementary process pN→NKΛ where the additional contributions from the N^*(1535) resonance and the final state interaction between p and Λ are included. The dependence of the production cross sections of Λ-hypernuclei on the phenomenological nuclear density and the nucleon number in the target, as well as the distortion effect of the incident proton and outgoing kaon, are also explored. It is shown that the distortion effect tends to decrease the cross
sections by a factor of about 3—10. The production cross sections are sensitive to the adopted nuclear density.

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JING Han-Tao, SHEN Peng-Nian and JIANG Huan-Qing. Production of Λ-hypernuclei in A(p,K⁺)_ΛB reactions[J]. Chinese Physics C, 2008, 32(12): 962-971. doi: 10.1088/1674-1137/32/12/005

JING Han-Tao, SHEN Peng-Nian and JIANG Huan-Qing. Production of Λ-hypernuclei in A(p,K⁺)_ΛB reactions[J]. Chinese Physics C, 2008, 32(12): 962-971. doi: 10.1088/1674-1137/32/12/005 shu

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Received: 2008-04-09
Revised: 2008-05-14

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Production of Λ-hypernuclei in A(p,K⁺)_ΛB reactions

Corresponding author: SHEN Peng-Nian,

Received Date: 2008-04-09

Accepted Date: 2008-05-14

Available Online: 2008-12-05

Abstract:

The production of Λ-hypernuclei in the A(p, K⁺)_ΛB reaction is investigated in the framework of the distorted wave impulse approximation(DWIA). The total cross sections and differential cross sections for various nuclear targets are calculated with an elementary process pN→NKΛ where the additional contributions from the N^*(1535) resonance and the final state interaction between p and Λ are included. The dependence of the production cross sections of Λ-hypernuclei on the phenomenological nuclear density and the nucleon number in the target, as well as the distortion effect of the incident proton and outgoing kaon, are also explored. It is shown that the distortion effect tends to decrease the cross
sections by a factor of about 3—10. The production cross sections are sensitive to the adopted nuclear density.

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Production of Λ-hypernuclei in A(p,K⁺)_ΛB reactions

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Production of Λ-hypernuclei in A(p,K+)ΛB reactions

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Production of Λ-hypernuclei in A(p,K⁺)_ΛB reactions

Production of Λ-hypernuclei in A(p,K⁺)_ΛB reactions