Isospin Properties of ($K^-$, $N$) Reactions for the Formation of Deeply-bound Antikaonic Nuclei
| dc.creator | Koike, T. | |
| dc.creator | Harada, T. | |
| dc.date | 2008-02-01 | |
| dc.date | 2008-03-31 | |
| dc.date.accessioned | 2026-07-07T11:55:46Z | |
| dc.date.available | 2026-07-07T11:55:46Z | |
| dc.description | The formation of deeply-bound antikaonic $K^-/\bar{K}^0$ nuclear states by nuclear ($K^-$, $N$) reactions is investigated theoretically within a distorted-wave impulse approximation (DWIA), considering the isospin properties of the Fermi-averaged $K^-+ N \to N + \bar{K}$ elementary amplitudes. We calculate the formation cross sections of the deeply-bound $\bar{K}$ states by the ($K^-$, $N$) reactions on the nuclear targets, $^{12}$C and $^{28}$Si, at incident $K^-$ lab momentum $p_{K^-}$ = 1.0 GeV/c and $θ_{\rm lab} = 0^{\circ}$, introducing a complex effective nucleon number $N_{\rm eff}$ for unstable bound states in the DWIA. The results show that the deeply-bound $\bar{K}$ states can be populated dominantly by the ($K^-$, $n$) reaction via the total isoscalar $ΔT=0$ transition owing to the isospin nature of the $K^-+ N \to N + \bar{K}$ amplitudes, and that the cross sections described by ${\rm Re}N_{\rm eff}$ and ${\rm Arg}N_{\rm eff}$ enable to deduce the structure of the $\bar{K}$ nuclear states; the calculated inclusive nucleon spectra for a deep $\bar{K}$-nucleus potential do not show distinct peak structure in the bound region. The few-body $\bar{K}\otimes [NN]$ and $\bar{K}\otimes [NNN]$ states formed in ($K^-$, $N$) reactions on $s$-shell nuclear targets, $^3$He, $^3$H and $^4$He, are also discussed. | |
| dc.description | 61 pages, 17 figures, proofread version to be published in Nucl. Phys. A | |
| dc.identifier | https://arxiv.org/abs/0802.0051 | |
| dc.identifier | http://arxiv.org/abs/0802.0051 | |
| dc.identifier | Nucl.Phys.A804:231-273,2008 | |
| dc.identifier | doi:10.1016/j.nuclphysa.2008.01.015 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/205354 | |
| dc.subject | Nuclear Theory | |
| dc.title | Isospin Properties of ($K^-$, $N$) Reactions for the Formation of Deeply-bound Antikaonic Nuclei | |
| dc.type | text |