研究者詳細 - 五十嵐　明則

論文 - 五十嵐　明則

分割表示 >> ／全件表示 94 件中 1 - 94 件目

Cross Section Calculation of H-He Collisions using Three-Electron Close-Coupling Method 査読あり

Akinori and Daiji Kato

Few-body systems 66 3 2024年12月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： https://doi.org/10.1007/s00601-024-01974-6

Cross sections in He+ +He collision at intermediate energies 査読あり

A. Igarashi and D. Kato

Eur. Phys. J. D 78 79 2024年6月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： https://doi.org/10.1140/epjd/s10053-024-00875-x

Two-center and path interference in dissociative capture in p+ H2 collisions 査読あり国際共著

S. Bastola, M. Dhital, B. Lamichhane, A. Silvus,R. Lomsadze, A. Hasan, A. Igarashi, and M. Schulz

Physical Review A 109 012821 2024年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： https://doi.org/10.1103/PhysRevA.109.012821

Projectile angular distributions in He+ + H collisions 査読あり

A. Igarashi and D. Kato

Physica Scripta 99 015404 2023年12月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

Wehave calculated the differential cross sections for the elastic, excitation toH(n=2), and electrontransfer
processes in He++Hcollision using a semiclassical atomic-orbital close-coupling method within two-electron treatment. The calculations have been implemented with four different basis sets to see the effects of electron-exchange, electron-transfer channels, and continuum channels. The results are compared with those of experiments and other calculations.

DOI： https://doi.org/10.1088/1402-4896/ad131d

Cross sections in H+ +He collision at intermediate energies 査読あり

A. Igarashi and D. Kato

The European Physical Journal D 77 190 2023年10月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

An atomic-orbital close-coupling method is applied to H++He collisions for collision energies 1–
200 keV. We show the cross sections for the elastic scattering, excitation to He(21S) and He(21P), electron
capture to H(2 s) and H(2p), and so on. Depending on the processes, the present results agree with some experiments, but disagree with some. Discrepancies are also found between present results and those of
existent two-electron calculations for electron capture to H(2 s) and excitation to He(21S) and He(21P) below 20 keV.

DOI： https://doi.org/10.1140/epjd/s10053-023-00770-x

Cross sections in He++H collisions for the energy region 1-100 keVu^-1 査読あり

A Igarashi and D Kato

Physica Scripta 98 ( 055402 ) 2023年4月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： https://doi.org/10.1088/1402-4896/acc823

Differential cross sections for projectile scattering angle in proton-helium collision at intermediate energies 査読あり

Igarashi A., Kato D.

Physica Scripta 98 ( 4 ) 2023年3月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Physica Scripta

The collisions between proton and helium are treated with a semi-classical atomic orbital expansion for proton incident energies 5-150 keV considering two-electrons explicitly. Differential cross sections with respect to the projectile scattering angle are calculated for elastic scattering, 21S and 21P excitation, single electron capture, and single ionization. The agreement with experiments are mostly good, but non-negligible discrepancies are seen for the elastic scattering and the single electron capture with target excitation.

DOI： 10.1088/1402-4896/acbb41

Scopus

Fully differential investigation of two-center interference in dissociative capture in p + H2 collision 招待あり査読あり国際共著

S. Bastola, M. Dhital, B. Lamichhane, A. Silvus, R. Lomsadze, J. Davis, A. Hasan, A. Igarashi, and M. Schulz

Phys. Rev. A 105 032805 2022年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： https://doi.org/10.1103/PhysRevA.105.032805

イオンと原子・分子の電離及び電荷移行衝突における微分断面積査読あり

五十嵐明則

原子衝突学会誌　しょうとつ 18 ( 5 ) 106 - 117 2021年9月

担当区分：筆頭著者記述言語：日本語掲載種別：研究論文（その他学術会議資料等）

Projectile angular distribution for electron capture in p + H2 collision considering the vibrational motion 査読あり

A Igarashi

Journal of Physics B: Atomic, Molecular and Optical Physics 53 ( 22 ) 225205 2020年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

We show the results calculated with improved treatment for the interaction between incident proton and nuclei in H2 over our previous work [2019 J. Phys. B: At. Mol. Opt. Phys. 52 075204] for electron capture process from H2 by proton with including the vibrational motion of molecules. Moreover, the differential cross sections with respect to the projectile scattering angle are calculated and the results are compared with experimental data. It is found that the inclusion of vibrational motion of molecules is essential to reproduce the experimental angular distribution for the fixed molecular orientation parallel to the transverse momentum transfer.

DOI： https://iopscience.iop.org/article/10.1088/1361-6455/abbe2a

Fully differential cross sections for ionization of Li(2s) and Li(2p) by 16 MeV Li2+ impact 査読あり

A Igarashi and L Gulyas

Journal of Physics B: Atomic, Molecular and Optical Physics 53 ( 7 ) 075203 2020年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： https://doi.org/10.1088/1361-6455/ab6d93

Effective fully differential cross-section in single ionization of helium by fast ions 査読あり

A Igarashi and L Gulyas

Journal of Physics B: Atomic, Molecular and Optical Physics 52 ( 24 ) 245203 2019年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

Fully differential measurements for the single ionization of helium by fast ion impacts are discussed by evaluating effective fully differential cross-sections (EFDCSs) proposed by Kouzakov (2017 Eur. Phys. J. D 71 63) where the coherence properties of the projectile and the target beams are taken into account. The present evaluation of the EFDCS is extended by including instrumental uncertainties. The experimental data are compared with theoretical results where the electron emission is described within the framework of the continuum distorted wave with eikonal initial state (CDW-EIS) method. In most cases, the obtained EFDCSs agree with the experimental data better than those evaluated without considering coherence properties and inclusion of experimental uncertainties.

DOI： 10.1088/1361-6455/ab46fe

Vibrationally resolved capture cross section in p + H2 collision 査読あり

A Igarashi and L Gulyas

J. Phys. B: At. Mol. Opt. Phys 52 075204 2019年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1088/1361-6455/ab065c

Theoretical investigation of the fully differential cross sections for single ionization of He in collisions with 75-keV protons 査読あり

L. Gulyas, S. Egri, and A. Igarashi

Physical review A 99 032704 2019年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevA.99.032704

Collision Strengths and Effective Collision Strengths for Allowed Transitions among the n < 5 Degenerate Levels of Atomic Hydrogen 査読あり

Kanti M. Aggarwal, Ryu Owada and Akinori Igarashi

Atoms 6 ( 3 ) 37 2018年7月

記述言語：英語掲載種別：研究論文（学術雑誌）

We report calculations of collision strengths and effective collision strengths for 26 allowed
transitions among the n < 5 degenerate levels of atomic hydrogen for which the close-coupling (CC) and
Born approximations have been used. Results are listed over a wide range of energies (up to 100 Ryd)
and temperatures (up to 107 K), sufficient for applications over a variety of plasmas, including fusion.
Similar results have also been calculated for deuterium, but they negligibly differ with those of hydrogen.

DOI： 10.3390/atoms6030037

Differential cross sections for ionizations of H and H<inf>2</inf>by 75 keV proton impact 査読あり

Igarashi A., Gulyás L.

Journal of Physics B: Atomic, Molecular and Optical Physics 51 ( 3 ) 035201 2018年1月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Journal of Physics B: Atomic, Molecular and Optical Physics

© 2018 IOP Publishing Ltd. We have calculated total, partial and fully differential cross sections (FDCSs) for ionizations of H and H 2 by 75 keV proton impact within the framework of the continuum-distorted-wave-eikonal-initial-state (CDW-EIS) approximation. Applying the single active electron model, the interaction between the projectile and the target ion is taken into account in the impact parameter picture. Extension of the CDW-EIS model to the molecular target is performed using the two-effective center approximation. The obtained results are compared with those of experimental and other theoretical data when available. The agreements between the theories and the experimental data are generally reasonable except for some cases of the FDCSs.

DOI： 10.1088/1361-6455/aa9d67

Scopus

Differential cross sections for electron capture in p + H<inf>2</inf>collisions 査読あり

Igarashi A., Gulyás L., Ohsaki A.

European Physical Journal D 71 ( 11 ) 2017年11月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：European Physical Journal D

© 2017, EDP Sciences, SIF, Springer-Verlag GmbH Germany, part of Springer Nature. Abstract: Projectile angular distributions for electron capture in p + H 2 collisions at 25 and 75 keV impact energies, measured by Sharma et al. [Phys. Rev. A 86, 022706 (2012)], are calculated using the CDW-EIS and eikonal approximations. Angular distributions evaluated in the CDW-EIS approximation are in good agreement with the experimental data measured for coherent projectile beams. Incoherent projectile scatterings are also considered by folding the coherent angular distributions over the transverse momentum distribution of the projectile wave-packet. Reasonable agreements with the measurements are obtained only with coherence parameters very different from those reported in the experiments. Graphical abstract: [Figure not available: see fulltext.] .

DOI： 10.1140/epjd/e2017-80283-6

Scopus

Radiative Rates and Electron Impact Excitation Rates for Transitions in He II 査読あり

K. M. Aggarwal, A. Igarashi, F. P. Keenan and S. Nakazaki

Atoms 5 ( 2 ) 19 2017年5月

記述言語：英語掲載種別：研究論文（学術雑誌）

We report calculations of energy levels, radiative rates, collision strengths and effective
collision strengths for transitions among the lowest 25 levels of the n 5 configurations of He II. The
general-purpose relativistic atomic structure package (GRASP) and Dirac atomic R-matrix code (DARC)
are adopted for the calculations. Radiative rates, oscillator strengths and line strengths are reported
for all electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2) and magnetic quadrupole
(M2) transitions among the 25 levels. Furthermore, collision strengths and effective collision strengths
are listed for all 300 transitions among the above 25 levels over a wide energy (temperature) range up
to 9 Ryd (10^5.4 K)

DOI： 10.3390/atoms5020019

Differential cross sections for the single　ionization of H2 by 75keV proton impact 査読あり

A Igarashi and L Gulyas

J. Phys. B: At. Mol. Opt. Phys. 50 035201 2017年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

We have calculated the double and triple differential cross sections for electron ejection with
energy of 14.6 eV in single ionization of H2 by 75 keV proton impact. A molecular version of the
continuum distorted wave-eikonal initial state approach is applied, where the interaction between
the projectile and the residual molecular ion is considered more properly than in previous
applications of the method. For triple differential cross sections, the present results are in better
agreement with the experimental data than those of other descriptions when large momentum
transfer values are considered. For double differential cross sections the experimental data are
reproduced quite well for both coherent and incoherent proton beams.

DOI： doi:10.1088/1361-6455/aa52e0

Production Ratio for Para- and Ortho-Ps in Photodetachment of Ps#U- 査読あり

A. Igarashi

Few-Body Systtems 58 1 - 5 2016年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

Para- and ortho-Ps atoms are formed in the photodetachment of positronium negative ion. Since
the lifetime against the pair annihilation is much shorter for para-Ps(ns) than for ortho-Ps(ns), the production
ratio of para- and ortho-Ps atoms is important for the photodetachment experiments.We have derived the ratio
explicitly.

DOI： 10.1007/s00601-016-1171-4

Broad resonances in H#U- and Ps#U-

A.Igarashi

Eur. Phys. J. D 70 216 2016年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

Broad resonances of H
−
and Ps
−
obtained by complex-rotation methods are treated with hyperspherical
calculations. The resonances are identified as a peak in the energy dependence of time delay
obtained in the single-channel calculation using a hyperspherical adiabatic potential curve. The peak occurs
even when the adiabatic potential is purely repulsive, because the effective potential (the sum of adiabatic
potential and adiabatic correction) is attractive relative to the potential represented by its asymptotic
form.

ポジトロニウム負イオン査読あり

長嶋泰之，五十嵐明則, 満汐孝治

しょうとつ 13 ( 3 ) 2016年5月

記述言語：日本語掲載種別：研究論文（学術雑誌）

Single and multiple electron removal and fragmentation in collisions of protons with water molecules 査読あり

L. Gulyas, S. Egri, H. Ghavaminia, and A. Igarash

Phys. Rev. A 93 032704 2016年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

Differential cross sections for the ionization of H+2 by proton impact without using the two-effective center approximation 査読あり

A Igarashi, L Gulyas and A Ohsaki

J. Phys. B: At. Mol. Opt. Phys. 49 035204 2016年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

Resonance parameters for doubly excited state of H_2 査読あり

Akinori Igarashi

Journal of Physics B: Atomic, Molecular and Optical Physics 48 105202 2015年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： doi:10.1088/0953-4075/48/10/105202

Cross sections for dissociative ionization and dissociative excitation of H+2 by single photon absorption 査読あり

Akinori Igarashi

The European Physical Jorunal D 68 ( 9 ) 266 2014年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1140/epjd/e2014-50268-2

Calculation of electroni states of H_2 by a molecular-basis expansion method

Akinori Igarashi and Yuuichi Kuwayama

J. Phys. Soc. Jpn 83 ( 5 ) 054302(1-6) 2014年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

原子における自由－自由遷移の光吸収断面積査読あり

五十嵐　明則

原子衝突学会誌「しょうとつ」2013年第10巻第3号 10 ( 3 ) 2013年5月

記述言語：日本語掲載種別：研究論文（学術雑誌）

Two-Photon Detachment Cross Section of the Positronium 査読あり

Akinori Igarashi

Few body systems 2013年2月

記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： DOI 10.1007/s00601-013-0687-0

Calculation of two-photon detachment cross sections of the positronium negative ion 査読あり

Akinori Igarashi

Journal of Physics B: Atomic, Molecular and Optical Physics 45 ( 24 ) 245201 2012年12月

記述言語：英語掲載種別：研究論文（学術雑誌）

Double and transfer ionization in collisions of He with bare ions 査読あり

L. Gulyas, A. Igarashi, T. Kirchner

Phy. Rev. A 86 ( 2 ) 024701(1-5) 2012年8月

記述言語：英語掲載種別：研究論文（学術雑誌）

Projectile angular distribution in single electron capture from helium by fast protons 査読あり

A. Igarashi, L. Gulyas, and A. Ohsaki

The European Physical Journal D 66 ( 3 ) 79(1-6) 2012年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

Projectile scattering in one- and two-electron transitions 査読あり

L Gulyas, A Igarashi and T Kirchner

J. Phys. B: At. Mol. Opt. Phys　 45 ( 7 ) 085205 - (11) 2012年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

Elastic Scattering and 3p Excitation from Ground Stateof Sodium Isoelectronic Sequence by Electron Impact 査読あり

Ken-ichi AKITA, Shinobu NAKAZAKI, Akinori IGARASHI, and Akihiko OHSAKI

Journal of the Physical Society of Japan ８０ ( 10 ) 114301 - (1-6) 2011年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

Photodetachment of positronium negative ions 査読あり

K. Michishio, T. Tachibana, H. Terabe, A. Igarashi, 他５名

Physsical Review Letters 106 ( 15 ) 153401(4pages) 2011年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

Study of Angular Momentum Transfer in Electron-Impact 2s -> 2p Excitation 査読あり

K. Akita, S. Nakazaki, and A. Igarashi

Journal of the Physical Society of Japan 80 ( 3 ) 034302(7pages) 2011年2月

記述言語：英語掲載種別：研究論文（学術雑誌）

Two-electron cusp in the double ionization of helium 査読あり

L. Gulyas, L. Sakardi, A.Igarashi. T. Kirchner

Physical Review A 82 ( 3 ) 032705 - 9pages 2010年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

Effective collision strengths for optically allowed transitions among degenerate 査読あり

K. Hamada, K.M. Aggarwal, K. Akita, A. Igarashi, F.P. Keenan, S. Nakazaki

Atomic Data and Nuclear Data Tables 96 ( 5 ) 481 - 530 2010年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

Annihilation cross sections of protonium by ion impact: scaling law with respect to the principal quantum number 査読あり

L Gulyás , A Igarashi and A Ohsaki

J. Phys. B: At. Mol. Opt. Phys. 43 ( 5 ) 055203-1 - 055203-7 2010年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

Excitation rates for optically allowed transitions among degenerate 査読あり

K. Hamada et al.

Journal of Physics: Conference Series 194 ( 6 ) 06209 - 062009 2009年12月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Resonance states of unnatural parity in positronic atoms 査読あり

Isao Shimamura, Hiroaki Wakimoto, and Akinori Igarashi

Phys. Rev. A 80 ( 3 ) 032708-1 - 032708-10 2009年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

Angular momentum transfer and porlarization degree of ions with one-valence electron by electron impact 査読あり

Kenichi Akita , Takeshi Kai , Shinobu Nakazaki and Akinori Igarashi

Journal of Physics: Conference Series 163 ( 1 ) 012032-1 - 012032-4 2009年6月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Angular momentum transfer and polarization degree of ions with two-valence electrons by electron impact 査読あり

Kenichi Akita , Takeshi Kai , Shinobu Nakazaki and Akinori Igarashi

J. Phys.: Conf. Ser. 163 ( 1 ) 012037-1 - 012037-4 2009年6月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Annihilation cross section of protonium by electron impact 査読あり

A. Igarashi, L. Gulyas

Journal Physics of B: MOLECULAR AND OPTICAL PHYSICS 42 ( 3 ) 035201-1 - 035201-9 2009年2月

記述言語：英語掲載種別：研究論文（学術雑誌）

Annihilation of protonium by charged particle impact 査読あり

A. Igarashi, L. Gulyas

Nuclear Instruments and Methods in Physics Reasrech B 267 354 - 357 2009年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

Radiative rates and electron impact excitation rates for H-like Ar XVIII

K. M. Aggarwal, K. Hamada, A. Igarashi, V. Jonauskas, F. P. Keenan, and S. Nakazaki

Astronomy & Astrophysics 487 ( 1 ) 383 - 388 2008年8月

記述言語：英語掲載種別：研究論文（学術雑誌）

Radiative rates and electron impact excitation rates for H-like Fe XXVI 査読あり

K. M. Aggarwal, K. Hamada, A. Igarashi, V. Jonauskas, F. P. Keenan, and S. Nakazaki

Astronomy & Astrophysics 484 ( 3 ) 879 - 885 2008年6月

記述言語：英語掲載種別：研究論文（学術雑誌）

Application of hyperspherical close-coupling method to antiproton collisions with muonic hydrogen

A. Igarashi and N. Toshima

The European Physical Journal D 46 ( 3 ) 425 - 430 2008年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

Effective collision strengths for allowed transitions among the n < 5 degenerate levels of Al XIII 査読あり

K. M. Aggarwal, A. Igarashi, F. P. Keenan, and S. Nakazaki

Astronomy & Astrophysics 479 ( 2 ) 585 - 588 2008年2月

記述言語：英語掲載種別：研究論文（学術雑誌）

Single and double ionization of helium: the axial symmetry

L Gulyás, A Igarashi, P D Fainstein and T Kirchner

J. Phys. B: At. Mol. Opt. Phys. 41 ( 2 ) 025202 - 025210 2008年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

Kinetically balanced B-spline expansions in radial Dirac equation 査読あり

A. Igarashi

J. Phys. Soc. of Japan 76 ( 5 ) 54301-1 - 54301-6 2007年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

Time-delay matrix analysis of several overlapping resonances: applications to the helium atom and the positronium negative ion. 査読あり

K. Aiba, A. Igarashi and I. Shimamura

Journal of Physics B 40 ( 1 ) F9 - F17 2007年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

Evaluation of the single ionisation transition amplitude using the CDW-EIS model within the framework of the impact-parameter method 査読あり

A. Igarashi, L. Gulyas and P.D. Fainstein

The European Physical Journal D 42 ( 1 ) 73 - 77 2007年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

Three-body muon-transfer collisions from hydrogen isotope to He²⁺ and Li³⁺ ions 査読あり

A. Igarashi and N. Toshima

European Physics Journal D 40 ( 2 ) 176 - 179 2006年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

B-Spline Expansions in Radial Dirac Equation 査読あり

A. Igarashi

J. Phys. Soc. of Japan 75 ( 11 ) 114301-1 - 114301-8 2006年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

Double ionization of helium by fast ion impact:　Reexamination of the correlation function 査読あり

L. Gulyas, A. Igarashi, and T. Kirchner

Physical Review A 74 ( 3 ) 32713-1 - 32713-9 2006年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

Eigenvalues of the time-delay matrix in overlapping resonances

Isao Shimamura, J F McCann and A Igarashi

Journal of Physics B 39 ( 6 ) 1847 - 1854 2006年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

Protonium Formation in p^- + H(1s) collision

A. Igarashi and N. Toshima

AIP conference Proceedings 796 272 - 275 2005年5月

記述言語：英語掲載種別：研究論文（その他学術会議資料等）

Electron-exchange effect in electron-impact excitation of the n=2 fine-structure levels 査読あり

A. Igarashi, A. Ohsaki and S. Nakazaki

Journal of Physical Society of Japan 74 ( 1 ) 321 - 325 2005年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

Time-delay matrix analysis of resonances:applications to the psitronium negative ion 査読あり

共著者：A. Igarashi, I. Shimamura

J. Phys. B: At. Mol. Opt. Phys. 37 4221-4237 37 ( 21 ) 4221 - 4237 2004年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

Stable complex rotation eigenvalues that correspond to no full resonances in scattering: Examples in positron scattering be the helium ion 査読あり

共著者：A. Igarashi, I. Shimamura

Phys. Rev. A 70 ( 1 ) 12706-1 - 12706-5 2004年7月

記述言語：英語掲載種別：研究論文（学術雑誌）

Ionization cross section of helium and hydrogenic ions by antiproton impact 査読あり

A. Igarashi, S. Nakazaki and A. Ohsaki

Nuclear Instruments and Methods B 214 135 - 138 2004年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

Inseparable positron annihilation and positronium formation in positron-atom collisions: Description in terms of an absorbtion potential

共著者：A. Igarashi, M. Kimura,I. Shimamura, N. Toshima

Phys. Rev. A6842716(1-8) 2003年10月

Positron annihilation and positronium formation－A unified theory in terms of a complex potential

共著者：A. Igarashi, M. Kimura, I. Shimamura, N. Toshima

BUTSURI 58(7)528-532 2003年7月

Proton-Impact excitation between the n=2 fine-structure levels of hydrogenic ions

共著者：A. Igarashi, A. Ohsaki, S. Nakazaki

J. Phys. Soc. Jpn 72(5), 1073-1079 2003年5月

Electron-impact excitations between the n=2 fine-structure levels of hydrogenic ions

共著者：A.Igarashi, Y. Horiguchi, A. Ohsaki, S. Nakazaki

J. Phys. Soc. Jpn,72 (2), 307-312 2003年2月

Unified treatment of positron annihilation and positonium formationr

共著者：A. Igarashi, M.Kimura,I. Shimamura

Phys. Rev. Lett. 89(12), 123201 (1-4) 2002年9月

Radial integrals in the Coulomb-Born Approximation:Multipole transitions 査読あり

A. Ohsaki, A. Igarashi, T. Kai, S. Nakazaki

Computer Physics Communications 147 ( 3 ) 826 - 833 2002年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

B-spline expansion of scattering equations for ionization of atomic hydrogen by antiproton impact

共著者：J. Azuma, N. Toshima, K. Hino, A. Igarashi

Phys. Rev. A, 64(6), 62704 (1-9) 2001年12月

Nonadiabatically coupled hyperspherical equations applied to the collisional spin flip of muonic hydrogen

共著者：A. Igarashi, M. Faifman, I. Shimamura

Hyp. Interact. 138,77-83 138 ( 1-4 ) 77 - 83 2001年12月

記述言語：英語掲載種別：研究論文（学術雑誌）

Cross sections for electron detachment of the hydrogen negative ion and for single ionization of helium by antiproton impact

共著者：A. Igarashi, A. Ohsaki, N. Nakazaki

Phys. Rev. A, 64(4), 42717(1-4) 2001年10月

Single ionization of helium by antiproton impact

共著者：A. Igarashi, A. Ohsaki, N. Nakazaki

Phys. Rev. A, 62(5), 52722(1-5) 2000年11月

Hyperspherical calculation of H(1s) + μ+ arrangement collision cross section from threshold to 2eV

共著者： Z. X. Zhao, A. Igarashi, C. D. Lin

Phys. Rev. A, 62(4), 42706(1-5) 2000年10月

Photodetachment cross sections of the ositronium negative ion

共著者：A. Igarashi, I. Shimamura, N. Toshima

New J. Phys., 2,17 (1-14) 2000年8月

Ionization of atomic hydrogen by antiproton impact

共著者：A. Igarashi, A. Ohsaki, N. Nakazaki

Phys. Rev. A, 61(6), 62712(1-5) 2000年6月

Phase shifts of e- + Ps scatterings and photodetachment cross sections of Ps-

共著者：A. Igarashi, N. Nakazaki, A. Ohsaki

Phys. Rev. A, 61(3), 32710(1-5) 2000年3月

Full ambiguity-free quantum treatment of D+ + H(1s) charge transfer reactions at low energies

共著者：A. Igarashi, C.D. Lin

Phys.Rev. Lett., 83(15), 4041-4044 1999年11月

Hyperspherical close-coupling study of hyperfine transitions in low-energy p + pμ and e± + Ps scattering

共著者：A. Igarashi, I. Shimamura, N. Toshima

Phys. Rev. A, 58(2), 1166-1173 1998年8月

S-wave resonances in positron scattering by He+

共著者：A. Igarashi , I. Shimamura

Phys. Rev. A, 56(6), 4733-4736. 1997年12月

Criteria for the validity of the diabatic-by-sector expansion in the hyperspherical method

共著者：K. Hino, A. Igarashi, J. H. Macek

Phys. Rev. A, 56(1), 1038-1041 1997年7月

Recoil-ion momentum distribution of single-electron capture to the ground and excited states in 0.5-1 MeV/u B4+,5+-He collisions

共著者：T.Kambara, A.Igarashi, N. Watanabe, T. M.Kojima, Y. Nakai, Y. Awaya

J. Phys. B, 30 (5),221-1260 1997年3月

Hyperspherical coupled channel calculation of positronium formation in low-energy positron helium collisions

共著者：A. Igarashi, N. Toshima, T. Shirai

Phys. Rev. A, 54(6), 5004-5009 1996年12月

Excitation and Ionization of Excited Helium Atoms in Collisions with Bare Ions 査読あり

共著者：A. Igarashi, T. Shirai

Physica ScriptaT62, 95-104 T62 95 - 104 1996年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

Ionization of excited hydrogen-like ions by collisions with bare ions

共著者：A. Igarashi, T. Shirai

Phys. Rev. A, 51(6), 4699-4703 1995年6月

Ionization of excited hydrogen atoms by collisions with bare ions

共著者：A.Igarashi , T. Shirai

Phys. Rev. A, 50(6), 4945-4950 1994年12月

Muon transfer and elastic scattering in t + dμ collisions at low energies

共著者：A. Igarashi , N. Toshima, T. Shirai

Phys. Rev. A, 50(6), 4951-4955 1994年12月

Hyperspherical coupled-channel study for antihydrogen formation in antiproton-pisotronium collision

共著者：A. Igarashi , N. Toshima, T. Shirai

J.Phys.B, 27(15),L497-501 1994年8月

Hypersphericalcoupled-channel study of positronium formation

共著者：A. Igarashi , N. Toshima

Phys. Rev. A, 50(1) 232-239 1994年7月

Second order Born cross sections for positronium formation in positron-hydrogen collisions

共著者：A. Igarashi , N. Toshima

Phys. Rev. A, 47(3), 2386-2388 1993年3月

Exact calculation of the second-order Born terms for exotic-atom formation into excited states

共著者：A. Igarashi , N.Toshima, T. Ishihara

Phys. Rev. A, 46(9), 5525-5530 1992年11月

Destructive and constructive interferences of the second Born amplitudes for positronium formation

共著者：A. Igarashi , N. Toshima

Phys. Rev. A, 46(3), R1159-1162 1992年8月

Double-ionization fraction of the Glauber cross section for proton and helium collisions

共著者：A. Igarashi , N. Toshima, T. Ishihara

Phys. Rev. A, 45(9), R6157-6160 1992年5月

Second Born approximation differential cross sections for p+H and p+He charge-exchange collisions

共著者：A. Igarashi , N. Toshima

Phys. Rev. A, 45(9), 6313-6317 1992年5月

Positronium formation in positron helium collision at intermediate energies

共著者：A. Igarashi, N. Toshima

Phys. Lett. A, 164(1), 70-72 1992年4月

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