Y. Maeda

Publication List Details

Period

1976 - 2008

Number

194

Co-Authors

Measurement of the pn -> dK^+K^- total cross section close to threshold (2008)

Maeda, Y., Hartmann, M., Keshelashvili, I., Barsov, S., Buescher, M., Dzyuba, A., ...

Measurements of the pn -> p_spec dK^+K^- reaction, where p_spec is a spectator proton, have been undertaken at the Cooler Synchrotron COSY-Juelich by detecting a fast deuteron in coincidence with a...

Neutron-proton charge-exchange amplitudes at 585 MeV (2008)

Chiladze, D., Carbonell, J., Dzyuba, A., Dymov, S., Glagolev, V., Hartmann, M., ...

The differential cross section and deuteron analysing powers of the dp -> {pp}n charge-exchange reaction have been measured with the ANKE spectrometer at the COSY storage ring. Using a deuteron beam...

Coupled-channel effects in the pp -> ppK+K- reaction (2008)

Dzyuba, A., Buescher, M., Hartmann, M., Keshelashvili, I., Koptev, V., Maeda, Y., ...

The cross sections for the pp -> ppK+K- reaction were measured at three beam energies 2.65, 2.70, and 2.83 GeV at the COSY-ANKE facility. The shape of the K+K- spectrum at low invariant masses...

Differential cross section and analyzing power of the ${\vec p}p{\to}pp{\pi}^0$ reaction at a beam energy of 390 MeV (2008)

Maeda, Y., Segawa, M., Ishida, T., Kacharava, A., Nomachi, M., Shimbara, Y., ...

The differential cross section and analyzing power $A_y$ of the ${\vec p}p{\to}pp{\pi}^0$ reaction have been measured at RCNP in coplanar geometry at a beam energy of 390 MeV and the dependence on...

The Subaru/XMM-Newton Deep Survey (SXDS) - II. Optical Imaging and Photometric Catalogs (2008)

Furusawa, H., Kosugi, G., Akiyama, M., Takata, T., Sekiguchi, K., Tanaka, I., ...

We present multi-waveband optical imaging data obtained from observations of the Subaru/XMM-Newton Deep Survey (SXDS). The survey field, centered at R.A.=02:18:00, decl.=-05:00:00, has been the focus...

Determination of target thickness and luminosity from beam energy losses (2008)

Stein, H. J., Hartmann, M., Keshelashvili, I., Maeda, Y., Wilkin, C., Dymov, S., ...

The repeated passage of a coasting ion beam of a storage ring through a thin target induces a shift in the revolution frequency due to the energy loss in the target. Since the frequency shift is...

Kaon Pair Production in Proton--Proton Collisions (2007)

Maeda, Y., Hartmann, M., Keshelashvili, I., Barsov, S., Büscher, M., Drochner, M., ...

The differential and total cross sections for kaon pair production in the pp->ppK+K- reaction have been measured at three beam energies of 2.65, 2.70, and 2.83 GeV using the ANKE magnetic...

Is there an eta-3He quasi--bound state ? (2007)

Wilkin, C., Buescher, M., Chiladze, D., Dymov, S., Hanhart, C., Hartmann, M., ...

The observed variation of the total cross section for the dp -> 3He eta reaction near threshold means that the magnitude of the s--wave amplitude falls very rapidly with the eta centre--of--mass...

Analyzing powers Ayy, Axx, Axz and Ay in the dd->3Hen reaction at 270 MeV (2007)

Janek, M., Saito, T., Ladygin, V. P., Uesaka, T., Hatano, M., Isupov, A. Yu., ...

The data on the tensor Ayy, Axx, Axz and vector Ay analyzing powers in the dd->3Hen obtained at Td= 270 MeV in the angular range 0 - 110 degrees in the c.m. are presented. The observed negative sign...

Detection of a Rare Supersoft Outburst Event during a Suzaku Observation of 1E0102.2-7219 (2007)

Takei, D., Tsujimoto, M., Kitamoto, S., Morii, M., Ebisawa, K., Maeda, Y., ...

We report the detection of a transient X-ray source toward the Small Magellanic Cloud (SMC) using the X-ray Imaging Spectrometer (XIS) onboard the Suzaku telescope. The source was detected at the...

Precision study of the eta-3He system using the d+p->3He+eta reaction (2007)

Mersmann, T., Khoukaz, A., Büscher, M., Chiladze, D., Dymov, S., Hartmann, M., ...

The differential and total cross sections for the d+p->3He+eta reaction have been measured in a high precision high statistics COSY-ANKE experiment near threshold using a continuous beam energy ramp...

Precision measurement of vector and tensor analyzing powers in elastic deuteron-proton scattering (2006)

Mardanpour, H., Amir-Ahmadi, H. R., Deltuva, A., Itoh, K., Kalantar-Nayestanaki, N., Kawabata, T., ...

High precision vector and tensor analyzing powers of elastic deuteron-proton d+p scattering have been measured at intermediate energies to investigate effects of three-nucleon forces (3NF). Angular...

Investigation of the reaction pp->p K0 pi+ Lambda in search of the pentaquark (2006)

Nekipelov, M., Buescher, M., Hartmann, M., Keshelashvili, I., Kleber, V., Koptev, V., ...

The reaction pp->p K0 pi+ Lambda has been studied with the ANKE spectrometer at COSY-Juelich at a beam momentum of 3.65 GeV/c in order to search for a possible signal of the pentaquark Theta+(1540),...

Monte-Carlo Simulator and Ancillary Response Generator of Suzaku XRT/XIS System for Spatially Extended Source Analysis (2006)

Ishisaki, Y., Maeda, Y., Fujimoto, R., Ozaki, M., Ebisawa, K., Takahashi, T., ...

We have developed a framework for the Monte-Carlo simulation of the X-Ray Telescopes (XRT) and the X-ray Imaging Spectrometers (XIS) onboard Suzaku, mainly for the scientific analysis of spatially...

Swift and Suzaku Observations of the X-Ray Afterglow from the GRB 060105 (2006)

Tashiro, M. S., Abe, K., Angelini, L., Barthelmy, S., Gehrels, N., Ishikawa, N., ...

Results are presented of early X-ray afterglow observations of GRB 060105 by Swift and Suzaku. The bright, long gamma-ray burst GRB 060105 triggered the Swift Burst Alert Telescope (BAT) at 06:49:28...

Study of omega-meson production in pp collisions at ANKE (2006)

Barsov, S., Büscher, M., Hartmann, M., Hejny, V., Kacharava, A., Keshelashvili, I., ...

The production of omega-mesons in the pp->pp omega reaction has been investigated with the COSY-ANKE spectrometer for excess energies of 60 and 92MeV by detecting the two final protons and...

Precision measurement of the quasi-free pn->dphi reaction close to threshold (2006)

Maeda, Y., Hartmann, M., Keshelashvili, I., Barsov, S., Buescher, M., Dzyuba, A., ...

The quasi-free pn->dphi reaction has been studied at the Cooler Synchrotron COSY-Juelich, using the internal proton beam incident on a deuterium cluster-jet target and detecting a fast deuteron in...

Determination of deuteron beam polarizations at COSY (2006)

Chiladze, D., Kacharava, A., Rathmann, F., Wilkin, C., Barso, S., Carbonell, J., ...

The vector and tensor polarizations of a deuteron beam have been measured using elastic deuteron-carbon scattering at 75.6 MeV and deuteron-proton scattering at 270 MeV. After their acceleration to...

Determination of deuteron beam polarizations at COSY (2006)

Chiladze, D., Kacharava, A., Rathmann, F., Wilkin, C., Barso, S., Carbonell, J., ...

The vector and tensor polarizations of a deuteron beam have been measured using elastic deuteron-carbon scattering at 75.6 MeV and deuteron-proton scattering at 270 MeV. After their acceleration to...

Determination of deuteron beam polarizations at COSY (2006)

Chiladze, D., Kacharava, A., Rathmann, F., Wilkin, C., Barso, S., Carbonell, J., ...

The vector and tensor polarizations of a deuteron beam have been measured using elastic deuteron-carbon scattering at 75.6 MeV and deuteron-proton scattering at 270 MeV. After their acceleration to...

Scalar-isovector K K-bar production close to threshold (2006)

Dzyuba, A., Kleber, V., Buescher, M., Chernyshev, V. P., Dymov, S., Fedorets, P., ...

The reaction pp -> d K^+ K^0-bar has been investigated at excess energies Q = 47.4 and 104.7 MeV above the K^+ K^0-bar threshold at COSY-Juelich. Coincident dK^+ pairs were detected with the ANKE...

Vector and tensor analysing powers in deuteron-proton breakup reactions at intermediate energies (2006)

Chiladze, D., Carbonell, J., Dymov, S., Glagolev, V., Hartmann, M., Hejny, V., ...

Vector and tensor analysing powers of the d(pol)p->(pp)n (charge-exchange) and d(pol)p->(pn)p (non-charge-exchange) breakup reactions have been measured with the ANKE spectrometer at the COSY ring at...

The Near-Threshold Production of Phi Mesons in pp Collisions (2006)

Hartmann, M., Maeda, Y., Keshelashvilli, I., Koch, H. R., Mikirtytchiants, S., Barsov, S., ...

The pp->pp phi reaction has been studied at the Cooler Synchrotron COSY-Juelich, using the internal beam and ANKE facility. Total cross sections have been determined at three excess energies epsilon...

Vector and tensor analysing powers in deuteron-proton breakup reactions at intermediate energies (2006)

Chiladze, D., Carbonell, J., Dymov, S., Glagolev, V., Hartmann, M., Hejny, V., ...

Vector and tensor analysing powers of the d(pol)p->(pp)n (charge-exchange) and d(pol)p->(pn)p (non-charge-exchange) breakup reactions have been measured with the ANKE spectrometer at the COSY ring at...

Vector and tensor analysing powers in deuteron-proton breakup reactions at intermediate energies (2006)

Chiladze, D., Carbonell, J., Dymov, S., Glagolev, V., Hartmann, M., Hejny, V., ...

Vector and tensor analysing powers of the d(pol)p->(pp)n (charge-exchange) and d(pol)p->(pn)p (non-charge-exchange) breakup reactions have been measured with the ANKE spectrometer at the COSY ring at...

Near-Threshold Production Phi Mesons in pp Collisions (2006)

Hartmann, M., Maeda, Y., Keshelashvili, I., Koch, H. R., Mikirtytchiants, S., Barsov, S., ...

This version is available at the following Publisher URL: http://prl.aps.org

Evidence for an Excited Hyperon State in pp->pK+Y0* (2006)

Zychor, I., Koptev, V., Büscher, M., Dzyuba, A., Keshelashvili, I., Kleber, V., ...

This version is available at the following Publisher URL: http://prl.aps.org

Determination of Deuteron Beam Polarizations at COSY (2005)

Chiladze, D., Kacharava, A., Rathmann, F., Wilkin, C., Barsov, S., Carbonell, J., ...

The vector and tensor polarizations of a deuteron beam have been measured using elastic deuteron-carbon scattering at 75.6 MeV and deuteron-proton scattering at 270 MeV. After acceleration to 1170...

Resolving the Discrepancy of 135 MeV pd Elastic Scattering Cross Sections and Relativistic Effects (2005)

Sekiguchi, K., Sakai, H., Witała, H., Gloeckle, W., Golak, J., Hatanaka, K., ...

Three precise measurements for elastic pd scattering at 135 MeV/A have been performed with the three different experimental setups. The cross sections are described well by the theoretical...

Chandra Deep X-ray Observation of a Typical Galactic Plane Region and Near-Infrared Identification (2005)

Ebisawa, K., Tsujimoto, M., Paizis, A., Hamaguchi, K., Bamba, A., Cutri, R., ...

Using the Chandra Advanced CCD Imaging Spectrometer Imaging array (ACIS-I), we have carried out a deep hard X-ray observation of the Galactic plane region at (l,b) ~ (28.5, 0.0), where no discrete...

Evidence for an Excited Hyperon State in pp -> p K^+ Y^{0*} (2005)

Zychor, I., Koptev, V., Büscher, M., Dzyuba, A., Keshelashvili, I., Kleber, V., ...

Indications for the production of a neutral excited hyperon in the reaction pp -> p K^+ Y^{0*} are observed in an experiment performed with the ANKE spectrometer at COSY-J\"ulich at a beam momentum...

Performance of the neutron polarimeter NPOL3 for high resolution measurements (2005)

Wakasa, T., Hagihara, Y., Sasano, M., Asaji, S., Fujita, K., Hatanaka, K., ...

We describe the neutron polarimeter NPOL3 for the measurement of polarization transfer observables $D_{ij}$ with a typical high resolution of $\sim$300 keV at $T_n$ $\simeq$ 200 MeV. The NPOL3 system...

Indication of an excited hyperon state in pp collisions with ANKE at COSY-Juelich (2005)

Zychor, I., Koptev, V., Buescher, M., Dzyuba, A., Keshelashvili, I., Kleber, V., ...

The reaction pp->pK+Y has been studied with the ANKE spectrometer at COSY-Juelich in order to investigate heavy hyperon production. The missing mass spectra MM(pK+) have been analyzed and compared...

Exact Analysis of ESR Shift in the Spin-1/2 Heisenberg Antiferromagnetic Chain (2005)

Maeda, Y., Sakai, K., Oshikawa, M.

A systematic perturbation theory is developed for the ESR shift and is applied to the spin-1/2 Heisenberg chain. Using the Bethe ansatz technique, we exactly analyze the resonance shift in the first...

Determination of deuteron beam polarizations at COSY (2005)

Chiladze, D., Kacharava, A., Rathmann, F., Wilkin, C., Barso, S., Carbonell, J., ...

The vector and tensor polarizations of a deuteron beam have been measured using elastic deuteron-carbon scattering at 75.6 MeV and deuteron-proton scattering at 270 MeV. After their acceleration to...

Determination of deuteron beam polarizations at COSY (2005)

Chiladze, D., Kacharava, A., Rathmann, F., Wilkin, C., Barso, S., Carbonell, J., ...

The vector and tensor polarizations of a deuteron beam have been measured using elastic deuteron-carbon scattering at 75.6 MeV and deuteron-proton scattering at 270 MeV. After their acceleration to...

X-rays from HH 80, HH 81, and the Central Region (2004)

Maeda, Y., Tsuboi, Y., Pravdo, S. H.

We report detections of X-rays from HH 80 and HH 81 with the ACIS instrument on the Chandra X-Ray Observatory.

Determination of the Gamow-Teller Quenching Factor from Charge Exchange Reactions on 90Zr (2004)

Yako, K., Sakai, H., Greenfield, M. B., Hatanaka, K., Hatano, M., Kamiya, J., ...

Double differential cross sections between 0-12 degrees were measured for the 90Zr(n,p) reaction at 293 MeV over a wide excitation energy range of 0-70 MeV. A multipole decomposition technique was...

A Chandra Deep X-ray Exposure on the Galactic Plane and Near Infrared Identification (2004)

Ebisawa, K., Paizis, A., Couvoisier, T. J. -L., Dubath, P., Tsujimoto, M., Hamaguchi, K., ...

Using the Chandra ACIS-I instruments, we have carried out a deep X-ray observation on the Galactic plane region at (l,b) ~ (28.5, 0.0), where no discrete X-ray sources have been known previously. We...

Measurement of the tensor analyzing power T20 in the dd->^3Hen and dd->^3Hp at intermediate energies and at zero degree (2004)

Ladygin, V. P., Uesaka, T., Saito, T., Hatano, M., Isupov, A. Yu., Kato, H., ...

The data on the tensor analyzing power T20 in the dd->^3Hen and dd-> ^3Hp reactions at 140, 200 and 270 MeV of the deuteron kinetic energy and at zero degree obtained at RIKEN Accelerator Research...

Polarization Transfer Measurement for $^1H(\vec{d},\vec{p})^2 H$ Elastic Scattering at 135 MeV/u and Three Nucleon Force Effects (2004)

Sekiguchi, K., Sakai, H., Witała, H., Ermisch, K., Glöckle, W., Golak, J., ...

The deuteron to proton polarization transfer coefficients for the $d$--$p$ elastic scattering were precisely measured with an incoming deuteron energy of 135 MeV/u at the RIKEN Accelerator Research...

Chandra X-ray spectroscopic imaging of Sagittarius A* and the central parsec of the Galaxy (2003)

Baganoff, F. K., Maeda, Y., Morris, M., Bautz, M. W., Brandt, W. N., Cui, W., ...

We report the results of the first-epoch observation with the ACIS-I instrument on the Chandra X-Ray Observatory of Sagittarius A* (Sgr A*), the compact radio source associated with the supermassive...

Near-Infrared Identification of the Dimmest X-ray Sources on the Galactic Plane with the ESO/NTT SOFI Camera (2002)

Ebisawa, Ken, Beckmann, V., Courvoisier, T. J. -L., Dubath, P., Kaneda, H., Maeda, Y., ...

We have carried out a deep X-ray observation on a typical Galactic plane region with the Chandra ACIS-I instrument with unprecedented sensitivity and spatial resolution, and detected 274 unidentified...

Convergent star product algebras on "ax+b" (2002)

Bieliavsky, P., Maeda, Y.

We define non-tempered (exponential growth) function spaces on the Lie group ax+b which are stable under some left-invariant (convergent) star product.

Three-body dN interaction in the analysis of the 12C(pol_d,d') reaction at 270 MeV (2002)

Satou, Y., Ishida, S., Sakai, H., Okamura, H., Sakamoto, N., Otsu, H., ...

We have measured the cross sections and analyzing powers Ay and Ayy for the elastic and inelastic scattering of deuterons from the 0+(g.s.), 2+(4.44 MeV), 3-(9.64 MeV), 1+(12.71 MeV), and 2-(18.3...

Chandra deep X-ray observation on the Galactic plane (2002)

Ebisawa, K., Bamba, A., Kaneda, H., Maeda, Y., Paizis, A., Sato, G., ...

Using the Chandra ACIS-I instruments, we have carried out the deepest X-ray observation on a typical Galactic plane region at l 28.5 deg, where no discrete X-ray sources have been known previously....

Evidence of kaon nuclear and Coulomb potential effects on soft K+ production from nuclei (2002)

Nekipelov, M., Buescher, M., Cassing, W., Hartmann, M., Hejny, V., Kleber, V., ...

The ratio of forward K+ production on copper, silver and gold targets to that on carbon has been measured at proton beam energies between 1.5 and 2.3 GeV as a function of the kaon momentum p_K using...

Raman Scattering from Ge Nanocrystals on Si Substrates: Problems and Solutions (2002)

Kolobov, A. V., Maeda, Y., Oyanagi, H., Tanaka, K., Cernosek, Z.

This document demonstrates that in many cases the experimentally observed peak at about 300/cm is in fact originating from the Si substrate. We have found that the most promising ways to tackle this...

Analyzing power of the ${\vec p}p \to pp{\pi}^0$ reaction at beam energy of 390 MeV (2001)

Maeda, Y., Segawa, M., Yoshida, H. P., Nomachi, M., Shimbara, Y., Sugaya, Y., ...

The analyzing power of ${\vec p}p\to pp{\pi}^0$ reaction has been measured at the beam energy of 390 MeV. The missing mass technique of final protons has been applied to identify the $\pi^0$...

Rapid X-ray flaring from the direction of the supermassive black hole at the Galactic Centre (2001)

Baganoff, F. K., Bautz, M. W., Brandt, W. N., Chartas, G., Feigelson, E. D., Garmire, G. P., ...

Most galactic nuclei are now believed to harbour supermassive black holes. Studies of stellar motions in the central few light-years of our Milky Way Galaxy indicate the presence of a dark object...

Chandra Observations of Diffuse X-Rays from the Sagittarius B2 Cloud (2001)

Murakami, H., Koyama, K., Maeda, Y.

We present the first Chandra results of the giant molecular cloud Sagittarius B2 (Sgr B2), located about 100 pc away from the Galactic center. Diffuse X-rays are clearly separated from one-and-a-half...

A Chandra Study of Sgr A East: A Supernova Remnant Regulating The Activity Of Our Galactic Center? (2001)

Maeda, Y., Baganoff, F. K., Feigelson, E. D., Morris, M., Bautz, M. W., Brandt, W. N., ...

We report on the X-ray emission from the shell-like, non-thermal radio source Sgr A East located in the inner few parsecs of the Galaxy based on observations made with the ACIS detector on board...