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NSR database version of May 22, 2024.

Search: Author = S.Ando

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2024AN01      Phys.Rev. C 109, 015801 (2024)

Sh.-I.Ando

Radiative decay of the subthreshold 1-1 and 2+1 states of 16O in cluster effective field theory

doi: 10.1103/PhysRevC.109.015801
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2024AN03      Few-Body Systems 65, 7 (2024)

Sh.-I.Ando

ANCs of the Bound States of 16O Deduced from Elastic α-12C Scattering Data

NUCLEAR REACTIONS 12C(α, α), (α, X)16O, E not given; analyzed available data. 16O; deduced asymptotic normalization coefficients (ANCs) of the bound states, phase shifts within cluster effective field theory (EFT).

doi: 10.1007/s00601-023-01877-y
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2023AN04      Phys.Rev. C 107, 045808 (2023)

S.-I.Ando

S matrices of elastic α-12C scattering at low energies in effective field theory

NUCLEAR REACTIONS 12C(α, α), E=2-6.6 MeV; calculated scattering amplitudes of elastic α scattering on 12C, phase shifts for channels with l=0, 1, 2, 3, 4, 5 and 6, asymptotic normalization coefficients for 16O threshold states. Relevance to C/O ratio along with the triple-α process in the helium burning process in stars.

doi: 10.1103/PhysRevC.107.045808
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2022AN11      Phys.Rev. C 105, 064603 (2022)

S.-I.Ando

Elastic α-12C scattering at low energies with the resonant 2+2 and 2+3 states of 16O

NUCLEAR REACTIONS 12C(α, α'), E<5.5 MeV; calculated phase shift for d-wave channel as function of α energy. 16O; calculated asymptotic normalization coefficients (ANC) of the 2+ state. Effective Lagrangian approach. Com parison to experimental data.

doi: 10.1103/PhysRevC.105.064603
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2022SO19      Phys.Rev. C 106, 055807 (2022)

S.Son, S.-I.Ando, Y.Oh

Radiative proton capture on 15N within effective field theory

NUCLEAR REACTIONS 15N(p, γ), E(cm)<2.3 MeV; calculated astrophysical S-factor energy dependence including value at zero energy, resonance parameters. Cluster effective field theory with effective Lagrangian appropriate for the reaction at low energies. Comparison to experimental data.

doi: 10.1103/PhysRevC.106.055807
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2021AN03      Eur.Phys.J. A 57, 17 (2021)

S.-I.Ando

Cluster effective field theory and nuclear reactions

NUCLEAR REACTIONS 12C(α, γ)16O, E<10 MeV; analyzed available data; calculated σ, S-factor.

RADIOACTIVITY 16N(β-), (β-α); analyzed available data; deduced fitting parameters, β delayed α emission from 16N as a function of the α energy.

doi: 10.1140/epja/s10050-020-00304-8
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2020AN03      Phys.Rev. C 101, 054001 (2020)

S.-I.Ando, Y.-H.Song, C.H.Hyun

Neutrino-deuteron reactions at solar neutrino energies in pionless effective field theory with dibaryon fields

NUCLEAR REACTIONS 2H(ν, np), (ν-bar, e+2n), (ν-bar, np), (ν, e-2p), E=2-20 MeV, solar neutrino energies; calculated σ(E), and S-wave contribution to the σ(E) using pionless effective field theory with dibaryon fields (dEFT). Comparison with other theoretical prediction.

doi: 10.1103/PhysRevC.101.054001
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2020AN15      Phys.Rev. C 102, 034611 (2020)

S.-I.Ando

Elastic α-12C scattering at low energies with the sharp resonant 0+3 state of 16O

NUCLEAR REACTIONS 12C(α, α)16O*, E=2.6-6.62 MeV; analyzed experimental data for the phase shift; deduced parameters that appear in the scattering amplitudes; calculated asymptotic normalization constants for the ground state and the first excited 0+ state in 16O, with the inclusion of the sharp resonant, second excited 0+ state of 16O and the first excited 2+ state of 12C. Effective Lagrangian approach to derive a scattering amplitude for s-wave elastic scattering.

doi: 10.1103/PhysRevC.102.034611
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2019AN11      Phys.Rev. C 100, 015807 (2019)

S.Ando

SE1 factor of radiative α capture on 12C in cluster effective field theory

NUCLEAR REACTIONS 12C(α, γ), E=0.1-3 MeV; calculated radiative capture amplitudes, and astrophysical SE1 factor at the Gamow-peak energy up to NLO in the standard counting rules using effective field theory. Comparison with experimental data. Discussed modification of the counting rules for the radiative capture amplitudes due to the enhancement of the p-wave dressed composite propagator of 16O. Relevance to determination of the C/O ratio in the stars.

doi: 10.1103/PhysRevC.100.015807
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2018AN04      Phys.Rev. C 97, 014604 (2018)

S.-I.Ando

Elastic α-12C scattering at low energies with the bound states of 16O in effective field theory

NUCLEAR REACTIONS 12C(α, α), E=2.6-6.6 MeV; analyzed effective range parameters to the phase-shift experimental data for elastic scattering for L=0, 1, 2, 3 below the resonance energies of 16O in effective field theory (EFT), by including the first excited 0+, 1-, 2+ and 3- bound states in 16O. 16O; calculated asymptotic normalization constants (ANCs) of first excited 0+, 1-, 2+ and 3- states. 12C(α, γ)16O; discussed uncertainties when the amplitudes are interpolated to the stellar energy region.

doi: 10.1103/PhysRevC.97.014604
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2018GU05      Phys.Rev. C 97, 064323 (2018)

Y.K.Gupta, K.B.Howard, U.Garg, J.T.Matta, M.Senyigit, M.Itoh, S.Ando, T.Aoki, A.Uchiyama, S.Adachi, M.Fujiwara, C.Iwamoto, A.Tamii, H.Akimune, C.Kadono, Y.Matsuda, T.Nakahara, T.Furuno, T.Kawabata, M.Tsumura, M.N.Harakeh, N.Kalantar-Nayestanaki

Isoscalar giant monopole, dipole, and quadrupole resonances in 90, 92Zr and 92Mo

NUCLEAR REACTIONS 90,92Zr, 92Mo(α, α'), (α, α), E=385 MeV; measured Eα, α(θ), double differential σ(E, θ) using Grand Raiden spectrometer of RCNP; deduced energies, widths, EWSR and moment ratios for isoscalar giant monopole (ISGMR), dipole (ISGDR), and quadrupole (ISGQR) strength distributions, Lorentzian parameters of distributions, collective structures not influenced by nuclear shell structure near A=90. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.97.064323
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Data from this article have been entered in the XUNDL database. For more information, click here.


2018RA22      Phys.Rev. C 98, 034002 (2018)

U.Raha, Y.Kamiya, S.-I.Ando, T.Hyodo

Universal physics of the few-body system of two neutrons and one flavored meson

doi: 10.1103/PhysRevC.98.034002
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2017SO10      Phys.Rev. C 96, 014001 (2017)

Y.-H.Song, S.-I.Ando, C.H.Hyun

Spin-polarization observables of deuteron photodisintegration at low energies in pionless effective-field theory

NUCLEAR REACTIONS 2H(γ, np), (polarized γ, np), E=2-30 MeV; calculated unpolarized total σ(E) for deuteron photodisintegration, ratio of the unpolarized differential σ(θ) and total σ, polarized differential σ(θ, E), tensor analyzing powers T20(θ, E) and T22(θ, E), induced neutron polarization. Pionless effective field theory up to next-to-next-to-leading order (NNLO), and with dibaryon fields. Comparison with experimental data from High Intensity Gamma-Ray Source facility at Duke University.

doi: 10.1103/PhysRevC.96.014001
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2016AN06      Int.J.Mod.Phys. E25, 1641005 (2016)

S.-I.Ando

Hypernuclei in halo/cluster effective field theory

NUCLEAR STRUCTURE 4,6He; calculated two-hyperon separation energy, hyperon-hypertriton scattering length, Efimov states.

doi: 10.1142/S0218301316410056
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2016AN08      Eur.Phys.J. A 52, 130 (2016)

S.-I.Ando

Elastic α-12C scattering at low energies in cluster effective field theory

NUCLEAR REACTIONS 12C(α, γ), (α, α), E=0-6.5 MeV; calculated model parameters, phase shifts using the cluster effective field theory.

doi: 10.1140/epja/i2016-16130-2
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2016GU13      Phys.Lett. B 760, 482 (2016)

Y.K.Gupta, U.Garg, K.B.Howard, J.T.Matta, M.Senyigit, M.Itoh, S.Ando, T.Aoki, A.Uchiyama, S.Adachi, M.Fujiwara, C.Iwamoto, A.Tamii, H.Akimune, C.Kadono, Y.Matsuda, T.Nakahara, T.Furuno, T.Kawabata, M.Tsumura, M.N.Harakeh, N.Kalantar-Nayestanaki

Are there nuclear structure effects on the isoscalar giant monopole resonance and nuclear incompressibility near A ∼ 90?

NUCLEAR REACTIONS 90,92Zr, 92Mo(α, α'), E=385 MeV; measured reaction products, Eα, Iα; deduced σ(θ, E), isoscalar giant monopole resonance strength distributions.

doi: 10.1016/j.physletb.2016.07.021
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2519. Data from this article have been entered in the XUNDL database. For more information, click here.


2015AN09      Phys.Rev. C 92, 024325 (2015)

S.-I.Ando, U.Raha, Y.Oh

Investigation of the Λ bound state in pionless effective theory

doi: 10.1103/PhysRevC.92.024325
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2014AN01      Phys.Rev. C 89, 014318 (2014)

S.-I.Ando, G.-S.Yang, Y.Oh

ΛΛ4H in halo effective field theory

NUCLEAR STRUCTURE 4H; calculated ΛΛ hyperon bound state, S-wave hypertriton-Λ scattering length in spin singlet and triplet channels below the hypertriton breakup momentum, two-hyperon separation energy, coupling parameter of three-body contact interaction as a function of the cutoff parameter. Halo/cluster effective field theory treating the double-hyperon 4H hypernucleus system as a three-cluster (Λ-Λ-deuteron) system.

doi: 10.1103/PhysRevC.89.014318
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2014AN08      Phys.Rev. C 90, 037301 (2014)

S.-I.Ando, Y.Oh

6ΛΛHe in cluster effective field theory

NUCLEAR STRUCTURE 6He; calculated correlations between the double hyperon separation energy (BΛΛ) of 6ΛΛHe hypernucleus, and the scattering length aΛΛ of the s-wave ΛΛ scattering. Three-body (ΛΛα) cluster system in cluster effective field theory at leading order. Comparison with experimental BΛΛ value.

doi: 10.1103/PhysRevC.90.037301
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2014IT01      Phys.Rev.Lett. 113, 102501 (2014)

M.Itoh, S.Ando, T.Aoki, H.Arikawa, S.Ezure, K.Harada, T.Hayamizu, T.Inoue, T.Ishikawa, K.Kato, H.Kawamura, Y.Sakemi, A.Uchiyama

Further Improvement of the Upper Limit on the Direct 3α Decay from the Hoyle State in 12C

NUCLEAR REACTIONS 12C(12C, 3α)12C, E=110 MeV; measured reaction products, Eα, Iα; deduced yields, Dalitz plots, Hoyle state, branching ratios, J, π. Comparison with available data.

doi: 10.1103/PhysRevLett.113.102501
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Data from this article have been entered in the XUNDL database. For more information, click here.


2013SH40      Phys.Rev. C 88, 035501 (2013)

J.W.Shin, C.H.Hyun, S.-I.Ando, S.W.Hong

Polarization of the neutron induced by hadronic weak interactions in the photodisintegration of the deuteron

NUCLEAR REACTIONS 2H(γ, n)p, E=2-15 MeV; calculated polarization observables of neutrons in photodisintegration of deuteron. Pionless field effect theory. Implication on the understanding of hadronic weak interactions.

doi: 10.1103/PhysRevC.88.035501
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2012AN09      Phys.Rev. C 86, 024002 (2012)

S.-I.Ando, C.Ho.Hyun

Effective range corrections from effective field theory with dibaryon fields and perturbative pions

doi: 10.1103/PhysRevC.86.024002
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2011AN16      Phys.Rev. C 83, 064002 (2011)

S.-I.Ando, Y.-H.Song, C.H.Hyun, K.Kubodera

Spin polarization in γd → (n-pol)p at low energies with a pionless effective field theory

NUCLEAR REACTIONS 2H(γ, n), E<30 MeV; calculated spin up/down differential cross sections, neutron polarization as function of incident energy and angle, σ(E, θ). Pionless effective field theory with dibaryon fields (dEFT) framework. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.064002
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2010AN11      J.Phys.(London) G37, 105108 (2010)

S.Ando, M.C.Birse

Effective field theory of 3He

NUCLEAR STRUCTURE 3H, 3He; calculated three-body forces; deduced importance of isospin symmetric three-body force, small contribution of Coulomb interaction.

doi: 10.1088/0954-3899/37/10/105108
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2010AN16      Nucl.Phys. A844, 165c (2010)

S.-i.Ando, C.H.Hyun, J.W.Shin

Hadronic weak interaction in the two-nucleon system with effective field theories

doi: 10.1016/j.nuclphysa.2010.05.029
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2010SH10      Phys.Rev. C 81, 055501 (2010)

J.W.Shin, S.Ando, C.H.Hyun

Parity-violating polarization in np → dγ with a pionless effective field theory

doi: 10.1103/PhysRevC.81.055501
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2008AN08      Phys.Rev. C 78, 024004 (2008)

S.-i.Ando, M.C.Birse

Renormalization-group analysis for low-energy scattering of charged particles

doi: 10.1103/PhysRevC.78.024004
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2008DE18      Phys.Rev. C 77, 064002 (2008)

B.Desplanques, C.H.Hyun, S.Ando, C.-P.Liu

Parity-violating nucleon-nucleon interaction from different approaches

NUCLEAR REACTIONS p(polarized p, p), p(polarized n, γ)E=13.6, 45, 221 MeV; calculated spectral functions, dependence of total potential energy on charge and radius, PV asymmetries. Effective field theory. Comparison with covariant approach.

doi: 10.1103/PhysRevC.77.064002
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2007AN27      Eur.Phys.J. A 33, 185 (2007)

S.Ando

pp → ppπ0 near threshold in pionless effective theory

doi: 10.1140/epja/i2007-10448-8
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2007AN32      Phys.Rev. C 76, 064001 (2007)

S.Ando, J.W.Shin, C.H.Hyun, S.-W.Hong

Low energy proton-proton scattering in effective field theory

NUCLEAR REACTIONS p(p, X), E not given; calculated scattering amplitudes using pionless effective field theory.

doi: 10.1103/PhysRevC.76.064001
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2007HY01      Eur.Phys.J. A 32, 513 (2007)

C.H.Hyun, S.Ando, B.Desplanques

Two-pion-exchange parity-violating potential and np → dγ

doi: 10.1140/epja/i2006-10426-8
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2006AN03      Phys.Lett. B 633, 253 (2006)

S.Ando, K.Kubodera

Neutron-neutron fusion

NUCLEAR REACTIONS 1n(n, d), E≤thermal; calculated σ and electron energy spectra. Pionless effective field theory.

doi: 10.1016/j.physletb.2005.11.085
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2006AN16      Phys.Rev. C 74, 025809 (2006)

S.Ando, R.H.Cyburt, S.W.Hong, C.H.Hyun

Radiative neutron capture on a proton at big-bang nucleosynthesis energies

NUCLEAR REACTIONS 1H(n, γ), E(cm) ≈ 0-1 MeV; 2H(γ, n), E(cm) ≈ 0-1 MeV; calculated total σ. 2H(polarized γ, n), E ≈ 0-1 MeV; calculate analyzing power.

doi: 10.1103/PhysRevC.74.025809
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2006AN34      Phys.Rev. D 74, 094013 (2006)

S.Ando, J.-W.Chen, C.-W.Kao

Leading chiral corrections to the nucleon generalized parton distributions

NUCLEAR STRUCTURE A=1; calculated chiral corrections to generalized parton distributions.

doi: 10.1103/PhysRevD.74.094013
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2006NA27      Phys.Rev. C 74, 034004 (2006); Erratum Phys.Rev. C 76, 069902 (2007)

S.X.Nakamura, S.Ando

Renormalization group analysis of nuclear current operators

doi: 10.1103/PhysRevC.74.034004
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2006YU06      Phys.Rev. C 74, 015803 (2006)

H.Yuksel, S.Ando, J.F.Beacom

Direct measurement of supernova neutrino emission parameters with a gadolinium-enhanced Super-Kamiokande detector

doi: 10.1103/PhysRevC.74.015803
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2005AN16      Phys.Rev. C 72, 014008 (2005)

S.Ando, C.H.Hyun

Effective field theory of the deuteron with dibaryon fields

NUCLEAR REACTIONS 2H(e, e), E not given; calculated form factors. 1H(n, γ), E=0-1 MeV; calculated δ, magnetic dipole contributions. Pionless effective field theory, comparison with data.

doi: 10.1103/PhysRevC.72.014008
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2004AN13      Phys.Lett. B 595, 250 (2004)

S.Ando, H.W.Fearing, V.Gudkov, K.Kubodera, F.Myhrer, S.Nakamura, T.Sato

Neutron beta-decay in effective field theory

RADIOACTIVITY 1n(β-); calculated T1/2, angular correlation coefficients, radiative corrections. Effective field theory.

doi: 10.1016/j.physletb.2004.06.037
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2003AN03      Phys.Lett. B 555, 49 (2003)

S.Ando, Y.H.Song, T.-S.Park, H.W.Fearing, K.Kubodera

Solar-neutrino reactions on deuteron in effective field theory

NUCLEAR REACTIONS 2H(ν, ep), (ν-bar, e+n), (ν, ν'p), (ν-bar, ν-bar'p), E=spectrum; calculated σ for solar neutrinos. Effective field theory.

doi: 10.1016/S0370-2693(03)00046-7
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2003AN31      Nucl.Phys. A721, 541c (2003)

S.Ando, K.Sato, T.Totani

Detectability of the Supernova Relic Neutrinos

doi: 10.1016/S0375-9474(03)01119-9
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2003NA23      Nucl.Phys. A718, 437c (2003)

S.Nagataki, K.Kohri, S.Ando, K.Sato

Gamma-ray burst neutrino background and star formation history in the universe

doi: 10.1016/S0375-9474(03)00824-8
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2003NA32      Nucl.Phys. A721, 549c (2003)

S.Nakamura, T.Sato, S.Ando, T.-S.Park, F.Myhrer, V.Gudkov, K.Kubodera

Neutrino-deuteron reactions at solar neutrino energies

NUCLEAR REACTIONS 2H(ν, ep), (ν, νn), E=5, 10, 20 MeV; calculated σ. 2H(ν, X), E=0-20 MeV; calculated total charged-current σ.

doi: 10.1016/S0375-9474(03)01121-7
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2002AN02      Phys.Rev. C65, 015502 (2002)

S.-I.Ando, H.W.Fearing, D.-P.Min

Polarized Photons in Radiative Muon Capture

NUCLEAR REACTIONS 1H(μ-, νγ), E not given; calculated Eγ, γ-ray polarization, sensitivity to pseudoscalar coupling constant.

doi: 10.1103/PhysRevC.65.015502
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2002AN08      Phys.Rev. C65, 048501 (2002)

S.-I.Ando, F.Myhrer, K.Kubodera

Ordinary and Radiative Muon Capture in Liquid Hydrogen Reexamined

NUCLEAR REACTIONS 1H(μ, ν), E at rest; analyzed ordinary and radiative capture rates.

doi: 10.1103/PhysRevC.65.048501
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2002AN10      Phys.Lett. 533B, 25 (2002)

S.Ando, T.-S.Park, K.Kubodera, F.Myhrer

The μ-d Capture Rate in Effective Field Theory

NUCLEAR REACTIONS 2H(μ-, ν), E at rest; calculated capture rate vs final-state energy. Heavy baryon chiral perturbation theory.

doi: 10.1016/S0370-2693(02)01619-2
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2002NA19      Nucl.Phys. A707, 561 (2002)

S.Nakamura, T.Sato, S.Ando, T.-S.Park, F.Myhrer, V.Gudkov, K.Kubodera

Neutrino-Deuteron Reactions at Solar Neutrino Energies

NUCLEAR REACTIONS 2H(ν, ep), (ν, νp), E=1.5-20.0 MeV; calculated σ. Effective field theory.

doi: 10.1016/S0375-9474(02)00993-4
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2002SA64      Prog.Theor.Phys.(Kyoto), Suppl. 146, 212 (2002)

K.Sato, K.Takahashi, S.Ando

Neutrino Burst from Supernovae and Neutrino Oscillation

doi: 10.1143/PTPS.146.212
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2001AN01      Phys.Rev. C63, 015203 (2001)

S.-I.Ando, F.Myhrer, K.Kubodera

Capture Rate and Neutron Helicity Asymmetry for Ordinary Muon Capture on Hydrogen

NUCLEAR REACTIONS 1H(μ-, ν), E at rest; calculated muon capture rate, neutron helicity asymmetry. Heavy-baryon chiral perturbation theory.

ATOMIC PHYSICS, Mesic-atoms 1H(μ-, ν), E at rest; calculated muon capture rate, neutron helicity asymmetry. Heavy-baryon chiral perturbation theory.

doi: 10.1103/PhysRevC.63.015203
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2001AN18      Phys.Lett. 509B, 253 (2001)

S.-I.Ando, T.-S.Park, D.-P.Min

Threshold pp → ppπ0 Up to One-Loop Accuracy

NUCLEAR REACTIONS 1H(p, pπ0), E ≈ threshold; calculated σ; deduced one-loop contributions. Hybrid heavy baryon chiral perturbation theory, comparisons with data.

doi: 10.1016/S0370-2693(01)00433-6
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1998AN04      Phys.Lett. 417B, 177 (1998)

S.-I.Ando, D.-P.Min

Radiative Muon Capture in Heavy Baryon Chiral Perturbation Theory

NUCLEAR REACTIONS 1H(μ-, γ), E not given; calculated photon spectra; deduced one-loop order corrections. Comparison with data. Heavy baryon chiral perturbation theory.

doi: 10.1016/S0370-2693(97)01367-1
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Note: The following list of authors and aliases matches the search parameter S.Ando: , S.I.ANDO