Pionic charge exchange in nuclei

Clement, H.

doi:10.1016/0146-6410(92)90005-m

Cited by 32 publications

(25 citation statements)

References 157 publications

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“…4.28 in Ref. [208]. Among others a reason for this failure could have been that the two-step process of a DIAT not only depends on short-range correlations, but also on longer-range correlations, which possibly blur the six-quark cluster contribution.…”

Section: A Possible Remnant From This Period -A Broad Resonance Strucmentioning

confidence: 99%

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On the history of dibaryons and their final observation

Clement¹

2017

Progress in Particle and Nuclear Physics

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138

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Section: A Possible Remnant From This Period -A Broad Resonance Strucmentioning

confidence: 99%

“…4.19 in Ref. [208]. Later-on G. Miller [214] pointed out that the six-quark cluster assumption also necessitates a resonance-like energy dependence in the total DIAT cross section on 14 C, which should peak at T π ≈ 425 MeV, which again was not observed [215] -see, e.g.…”

Section: A Possible Remnant From This Period -A Broad Resonance Strucmentioning

confidence: 99%

On the history of dibaryons and their final observation

Clement¹

2017

Progress in Particle and Nuclear Physics

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138

125

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“…For a comprehensive review, please refer to Refs. [11,12]. 15 14 C, which was used as a target in past pion DCX measurements, are represented by black squares.…”

Section: Introductionmentioning

confidence: 99%

Search for Tetraneutron by Pion Double Charge Exchange Reaction at J-PARC

Fujioka¹,

Fukuda²,

Harada³

et al. 2017

Proceedings of the 14th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2016)

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Tetraneutron ( 4 n) has come back in the limelight, because of recent observation of a candidate resonant state at RIBF. We propose to investigate the pion double charge exchange (DCX) reaction, i.e. 4 He(π − , π + ), as an alternative way to populate tetraneutron. An intense π − beam with the kinetic energy of ∼ 850 MeV, much higher than that in past experiments at LAMPF and TRIUMF, will open up a possibility to improve the experimental sensitivity of the formation cross section, which will be much smaller than hitherto known DCX cross sections such as 9 Be(π − , π + ) 9 He (g.s.).

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“…During the 45 years after its discovery the pion double charge exchange reaction has generated a significant amount of theoretical and experimental work. Progress in the theoretical and experimental studies of the DCX reactions has been reflected in review papers of Backer and Batusov [3] in 1971, Jibuti and Kezerashvili [4] in 1985, Gibbs and Gibson [5] in 1987, Clement [6] in 1992, and Johnson and Morris [7] in 1993.…”

Section: Introductionmentioning

confidence: 99%

Pion double charge exchange in a composite-meson model

Kezerashvili¹,

Boyko

2007

Phys. Rev. C

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The pion double charge exchange amplitude is evaluated in a composite-meson model based on the four-quark interaction. The model assumes that the mesons are two-quark systems and can interact with each other only through quark loops. To evaluate the meson exchange current contribution, the form factors of the two-pion decay modes of the ρ, σ , and f 0 mesons have been used in the calculations. The contribution of the four-quark box diagram has been taken into account as well as a contact diagram. The contributions of the ρ, σ , and f 0 mesons increase the forward scattering cross section, which depends weakly on the energy.

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Pionic charge exchange in nuclei

Cited by 32 publications

References 157 publications

On the history of dibaryons and their final observation

On the history of dibaryons and their final observation

Search for Tetraneutron by Pion Double Charge Exchange Reaction at J-PARC

Pion double charge exchange in a composite-meson model

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