Backward-angle photoproduction of eta meson from protons at E_gamma = 1.6 - 2.4 GeV (2009)
Sumihama, M., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., Chang, W. C., ...
Differential cross sections for eta photoproduction off protons have been measured at E_gamma = 1.6 - 2.4 GeV in the backward direction. A bump structure has been observed above 2.0 GeV in the total...
Reduction of the incoherent $\gamma d \to \phi p n$ photoproduction near threshold (2009)
Chang, W. C., Miyabe, M., Nakano, T., Ahn, D. S., Ahn, J. K., Akimune, H., ...
We report measurements of differential cross sections and decay asymmetries of incoherent $\phi$-meson photoproduction from the deuteron at forward angles using linearly-polarized photons at...
Near-threshold photoproduction of $\Lambda(1520)$ from protons and deuterons (2009)
Muramatsu, LEPS Collaboration: N., Chen, J. Y., Chang, W. C., Ahn, D. S., Ahn, J. K., Akimune, H., ...
Photoproduction of $\Lambda$(1520) with liquid hydrogen and deuterium targets was examined at photon energies below 2.4 GeV in the SPring-8 LEPS experiment. For the first time, the differential cross...
Evidence of the \Theta^+ in the \gamma d \to K^+K^-pn reaction (2008)
Nakano, T., Muramatsu, N., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., ...
The \gamma d \to K^+K^-pn reaction has been studied to search for the evidence of the \Theta^+ by detecting K^+K^- pairs at forward angles. The Fermi-motion corrected nK^+ invariant mass distribution...
Search for a light pseudoscalar particle in the decay $K^0_L \to \pi^0 \pi^0 X$ (2008)
Tung, Y. C., Hsiung, Y. B., Wu, M. L., Chen, K. F., Ahn, J. K., Akune, Y., ...
We performed a search for a light pseudoscalar particle $X$ in the decay $K_L^0->pi0pi0X$, $X->\gamma\gamma$ with the E391a detector at KEK. Such a particle with a mass of 214.3 MeV/$c^2$ was...
Photoproduction of Lambda(1405) and Sigma^{0}(1385) on the proton at E_\gamma = 1.5-2.4 GeV (2008)
Niiyama, M., Fujimura, H., Ahn, D. S., Ahn, J. K., Ajimura, S., Bhang, H. C., ...
Differential cross sections for $\gamma p \to K^+\Lambda(1405)$ and $\gamma p \to K^+\Sigma^0(1385)$ reactions have been measured in the photon energy range from 1.5 to 2.4 GeV and the angular range...
Ahn, J. K., Lee, Y. S., Kim, J., ...
Objectives. Hypoxia-inducible factor-1α (HIF-1α) is a master regulator in the cellular response to hypoxic conditions, and rheumatoid synovial tissue is known to exist under hypoxic conditions....
Ahn, J. K., Kim, Y. G., ...
Objectives. The aim of this study was to determine the clinical characteristics of Behcet's disease (BD) associated with bone marrow failure (BMF), classified as conditions such as myelodysplastic...
Backward-angle photoproduction of $\pi^0$ mesons on the proton at $E_\gamma$ = 1.5--2.4 GeV (2007)
Sumihama, M., Ahn, J. K., Akimune, H., Asano, Y., Chang, W. C., Daté, S., ...
Differential cross sections and photon beam asymmetries for $\pi^0$ photoproduction have been measured at $E_\gamma$ = 1.5--2.4 GeV and at the $\pi^0$ scattering angles, --1 $
Forward coherent $\phi$-meson photoproduction from deuterons near threshold (2007)
Chang, W. C., Horie, K., Shimizu, S., Miyabe, M., Ahn, D. S., Ahn, J. K., ...
Differential cross sections and decay asymmetries for coherent $\phi$-meson photoproduction from deuterons were measured for the first time at forward angles using linearly polarized photons at...
Kohri, H., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., Chang, W. C., ...
Differential cross sections and photon beam asymmetries have been measured for the gamma n -> K+ Sigma- and gamma p -> K+ Sigma0 reactions separately using liquid deuterium and hydrogen targets with...
Diffractive $\phi$-meson photoproduction on proton near threshold (2005)
Mibe, T., Chang, W. C., Nakano, T., Ahn, D. S., Ahn, J. K., Akimune, H., ...
Photoproduction of $\phi$-meson on protons was studied by means of linearly polarized photons at forward angles in the low-energy region from threshold to $E_{\gamma}$= 2.37 GeV. The differential...
Measurement of the Xi-p Scattering Cross Sections at Low Energy (2005)
Ahn, J. K., Aoki, S., Chung, K. S., Chung, M. S., Enyo, H., Fukuda, T., ...
In this paper we report cross-section measurements for $\Xi^-p$ elastic and inelastic scatterings at low energy using a scintillating fiber active target. Upper limit on the total cross-section for...
Ahn, J.K., Akikawa, H., Arvieux, J., Bassalleck, B., Chung, M.S., En'Yo, H., ...
A hyperonnucleon scattering experiment, KEK-PS E289, was carried out at the K2 beam line in KEK. We adopted a scintillating fiber active target as a hydrogen target for hyperon production and...
Ahn, J.K., Akikawa, H., Arvieux, J., Bassalleck, B., Chung, M.S., En'Yo, H., ...
A hyperonnucleon scattering experiment, KEK-PS E289, was carried out at the K2 beam line in KEK. We adopted a scintillating fiber active target as a hydrogen target for hyperon production and...
Kim, H. -Ch., Ahn, J. K., Kim, E. S.
We investigate the effects of a localized constant wake and a localized linear wake on the longitudinal beam distribution in equilibrium. We also examine the effects of the composite wake on the...
phi photo-production from Li, C, Al, and Cu nuclei at Egamma=1.5 - 2.4 GeV (2004)
Ishikawa, T., Ahn, D. S., Ahn, J. K., Akimune, H., Chang, W. C., Date, S., ...
The photo-production of $\phi$ mesons from Li, C, Al, and Cu at forward angles has been measured at $E_gamma$=1.5--2.4 GeV. The number of events for incoherent phi photo-production is found to have a...
Sumihama, M., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., ...
Beam polarization asymmetries for the p(gamma,K+)Lambda and p(gamma,K+)sigma0 reactions are measured for the first time for Egamma=1.5-2.4 GeV and 0.6
Active target-detector with scintillating fibers for hyperon-proton scattering (2001)
Ahn, J.K., Akikawa, H., Arvieux, J., Bassalleck, B., Chung, M.S., Enyo, H., ...
Active target-detector with scintillating fibers for hyperon-proton scattering (2001)
Ahn, J.K., Akikawa, H., Arvieux, J., Bassalleck, B., Chung, M.S., Enyo, H., ...
Production of 4Lambda LambdaH Hypernuclei (2001)
Ahn, J. K., Ajimura, S., Akikawa, H., Bassalleck, B., Berdoz, A.
Ahn, J K, Bassalleck, B, Chung, M S, Chung, W M, Enyo, H, Fukuda, T, ...
Enhanced $\Lambda\Lambda$ production near threshold in the $^{12}C(K^{-},K^{+})$ reaction (1998)
Ahn, J K, Aoki, S, Chung, K S, Chung, M S, Enyo, H, Fukuda, T, ...
Ahn, J K, Aoki, S, Chung, K S, Shung, M S, Enyo, H, Fukuda, T, ...
Ahn, J K, Pitluk, Z W, Ward, D C
To further define the transcriptional regulation of the P38 promoter in the minute virus of mice (MVM) genome, we constructed a series of internal deletion and linker scanning mutations. The mutant...
Transcriptional analysis of minute virus of mice P4 promoter mutants.
Ahn, J K, Gavin, B J, Kumar, G, Ward, D C
A series of 5' deletion, internal deletion, and linker-scanning mutants of the minute virus of mice P4 promoter were constructed and analyzed for transcriptional activity in nuclear extracts of mouse...
Ahn, J K, Pitluk, Z W, Ward, D C
To further define the transcriptional regulation of the P38 promoter in the minute virus of mice (MVM) genome, we constructed a series of internal deletion and linker scanning mutations. The mutant...
Transcriptional analysis of minute virus of mice P4 promoter mutants.
Ahn, J K, Gavin, B J, Kumar, G, Ward, D C
A series of 5' deletion, internal deletion, and linker-scanning mutants of the minute virus of mice P4 promoter were constructed and analyzed for transcriptional activity in nuclear extracts of mouse...