NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = T.Baba Found 33 matches. 2022BA19 Phys.Rev. C 105, L061301 (2022) 4α linear-chain state produced by 9Be + 9Be collisions NUCLEAR STRUCTURE 18O; calculated levels, J, π, B(E2), moments of inertia, α- and 9Be-decay widths, bands structure. Calculations assuming 4α+2n linear chain structure in 18O and based on antisymmetrized molecular dynamics (AMD). Discussed the possibility of production linear-chain of 18O in 9Be+9Be heads-on collisions.
doi: 10.1103/PhysRevC.105.L061301
2022HA10 Phys.Rev. C 105, 044302 (2022) J.X.Han, Y.Liu, Y.L.Ye, J.L.Lou, X.F.Yang, T.Baba, M.Kimura, B.Yang, Z.H.Li, Q.T.Li, J.Y.Xu, Y.C.Ge, H.Hua, Z.H.Yang, J.S.Wang, Y.Y.Yang, P.Ma, Z.Bai, Q.Hu, W.Liu, K.Ma, L.C.Tao, Y.Jiang, L.Y.Hu, H.L.Zang, J.Feng, H.Y.Wu, S.W.Bai, G.Li, H.Z.Yu, S.W.Huang, Z.Q.Chen, X.H.Sun, J.J.Li, Z.W.Tan, Z.H.Gao, F.F.Duan, J.H.Tan, S.Q.Sun, Y.S.Song Observation of the π2σ2-bond linear-chain molecular structure in 16C NUCLEAR REACTIONS 2H(16C, X)16C/2H/1H/2H/3H/3He/4He/5He/6He/6Li/7Li/8Li/9Li/7Be/8Be/9Be/10Be/11Be/12Be, E=23.5 MeV/nucleon; measured reaction products, recoil 2H, 8Be and other outgoing particles; deduced Q-value spectra for breakup of excited states of 16C into 4He+12Be and 6He+10Be channels, angular correlation between 4He and 12Be decay fragments from the 16.5 MeV resonance in 16C, and 6He and 10Be fragments from the 19.4 MeV resonance in 16C. 16C; deduced excitation energy spectra reconstructed from 4He+12Be+2 H and 6He+10Be+2H channels, levels, resonances, total width. Comparison with previous experimental data, and with antisymmetrized molecular dynamics (AMD) theoretical calculations. Secondary 16C beam produced in 9Be(18O, X), E=59.6 MeV/nucleon primary reaction at the HIRFL-RIBLL facility in Lanzhou.
doi: 10.1103/PhysRevC.105.044302
2022KI01 Phys.Rev. C 105, 014311 (2022) M.Kimura, Y.Suzuki, T.Baba, Y.Taniguchi Description of isospin mixing by a generator coordinate method NUCLEAR STRUCTURE 14C, 14N; calculated energy curves as functions of quadrupole deformation parameter β. 14N; calculated levels, J, π, isospin T=1 components. 14N; calculated B(M1), B(E1), B(E2), magnetic dipole moments, electric quadrupole moments, spectroscopic factors, and overlap functions for low-lying, low-spin positive- and negative-parity states. Generator coordinate method (GCM) by applying the Fermi transition operator to the wave functions of isobars, for describing isospin mixing. Comparison with experimental data.
doi: 10.1103/PhysRevC.105.014311
2021TS03 Phys.Lett. B 817, 136283 (2021) M.Tsumura, T.Kawabata, Y.Takahashi, S.Adachi, H.Akimune, S.Ashikaga, T.Baba, Y.Fujikawa, H.Fujimura, H.Fujioka, T.Furuno, T.Hashimoto, T.Harada, M.Ichikawa, K.Inaba, Y.Ishii, N.Itagaki, M.Itoh, C.Iwamoto, N.Kobayashi, A.Koshikawa, S.Kubono, Y.Maeda, Y.Matsuda, S.Matsumoto, K.Miki, T.Morimoto, M.Murata, T.Nanamura, I.Ou, S.Sakaguchi, A.Sakaue, M.Sferrazza, K.N.Suzuki, T.Takeda, A.Tamii, K.Watanabe, Y.N.Watanabe, H.P.Yoshida, J.Zenihiro First experimental determination of the radiative-decay probability of the 3-1state in 12C for estimating the triple alpha reaction rate in high temperature environments NUCLEAR REACTIONS 1H(12C, p')12C, E=262 MeV; measured reaction products, Ep, Ip; deduced radiative-decay probability of the 3-1state in 12C, 3α reaction rate. Comparison with NACRE data.
doi: 10.1016/j.physletb.2021.136283
2021YU04 Chin.Phys.C 45, 084002 (2021) H.-z.Yu, J.Li, Y.-L.Ye, B.Yang, C.-J.Lin, H.-M.Jia, J.-L.Lou, X.-F.Yang, T.Baba, Q.-T.Li, Y.-C.Ge, Z.-H.Li, H.Hua, J.-Y.Xu, Z.-H.Yang, J.Feng, H.-L.Zang, Q.Liu, W.Jiang, Y.Liu, J.-J.Li, W.Liu, S.-W.Bai, J.Chen, J.-X.Han, J.-H.Chen, K.Ma, D.-X.Wang, L.Yang, N.-R.Ma, L.-J.Sun Novel evidence for the σ-bond linear-chain molecular structure in 14C NUCLEAR REACTIONS 7Li(11B, α)14C, E=55 MeV; measured reaction products, Eα, Iα. 4He, 10Be; deduced Q-values, energy levels, J, π. Comparison with theoretically predicted band head of the positive-parity σ-bond linear-chain molecular band.
doi: 10.1088/1674-1137/ac04a0
2020BA40 Phys.Rev. C 102, 024317 (2020) Monopole and dipole transitions of the cluster states of 18O NUCLEAR STRUCTURE 18O; calculated levels, J, π, density distributions of the intrinsic states, α spectroscopic factors, reduced matrix for the E0 and IS0 transitions between 0+ states, E1, and IS1 transitions between 0+ and 1- states. Antisymmetrized molecular-dynamics (AMD) calculations for (14C+α) cluster structure of the 0+ and 1- states in 18O. Comparison with experimental data.
doi: 10.1103/PhysRevC.102.024317
2020BA51 Phys.Rev. C 102, 041302 (2020) T.Baba, Y.Liu, J.X.Han, Y.L.Ye Pure σ-bond linear chain in 16C NUCLEAR STRUCTURE 16C; calculated energies of 0+ state as function of quadrupole deformation parameter β for 6He+10Be, 4He+12Be, and n+15C systems, density distributions of intrinsic linear chain configuration, reduced widths as function of the excitation energy of the excited 0+ state in 16C, energies, α-decay and 6He decay widths (keV) of the excited 0+, 2+ and 4+ states of linear-chain band for 6He+10Be, 4He+12Be systems; deduced that a linear-chain configuration exists with extreme deformation. Antisymmetrized molecular dynamics calculations.
doi: 10.1103/PhysRevC.102.041302
2020LI14 Phys.Rev.Lett. 124, 192501 (2020) Y.Liu, Y.L.Ye, J.L.Lou, X.F.Yang, T.Baba, M.Kimura, B.Yang, Z.H.Li, Q.T.Li, J.Y.Xu, Y.C.Ge, H.Hua, J.S.Wang, Y.Y.Yang, P.Ma, Z.Bai, Q.Hu, W.Liu, K.Ma, L.C.Tao, Y.Jiang, L.Y.Hu, H.L.Zang, J.Feng, H.Y.Wu, J.X.Han, S.W.Bai, G.Li, H.Z.Yu, S.W.Huang, Z.Q.Chen, X.H.Sun, J.J.Li, Z.W.Tan, Z.H.Gao, F.F.Duan, J.H.Tan, S.Q.Sun, Y.S.Song Positive-Parity Linear-Chain Molecular Band in 16C NUCLEAR REACTIONS 2H(16C, X)2H, E=23.5 MeV/nucleon; measured reaction products, Eα, Iα. 16C; deduced excitation energies, spin parities, total decay widths of the resonances in 16C. Comparison with AMD calculations.
doi: 10.1103/PhysRevLett.124.192501
2019BA06 Phys.Rev. C 99, 021303 (2019) Coulomb shift in the mirror pair of 14C and 14O as a signature of the linear-chain structure NUCLEAR STRUCTURE 14C, 14O; calculated levels, J, π, ground state binding energies, Coulomb energies and shifts, radii, density distributions of intrinsic wave functions, single particle energies, Thomas-Ehrman shift, and α-decay widths of linear chain states using antisymmetrized molecular dynamics (AMD). Linear chain structures.
doi: 10.1103/PhysRevC.99.021303
2019BA51 Phys.Rev. C 100, 064311 (2019) Variety of clustering in 18O NUCLEAR STRUCTURE 18O; calculated levels, J, π, cluster and band structures, density distribution contours of intrinsic positive- and negative-parity states, α-decay widths, spectroscopic factors for α and 6He channels, energy versus quadrupole deformation using the antisymmetrized molecular dynamics (AMD) method; deduced five different types of cluster states for 0+ state: 14C+α, higher-nodal 14C+α, two-molecular states (12C+α+2n), and a 4α linear-chain, dominance of α-particle emission for the 14C+α cluster states and 6He emission for the molecular states. Comparison with available experimental data, and with previous theoretical calculations.
doi: 10.1103/PhysRevC.100.064311
2018AD01 Phys.Rev. C 97, 014601 (2018) S.Adachi, T.Kawabata, K.Minomo, T.Kadoya, N.Yokota, H.Akimune, T.Baba, H.Fujimura, M.Fujiwara, Y.Funaki, T.Furuno, T.Hashimoto, K.Hatanaka, K.Inaba, Y.Ishii, M.Itoh, C.Iwamoto, K.Kawase, Y.Maeda, H.Matsubara, Y.Matsuda, H.Matsuno, T.Morimoto, H.Morita, M.Murata, T.Nanamura, I.Ou, S.Sakaguchi, Y.Sasamoto, R.Sawada, Y.Shimizu, K.Suda, A.Tamii, Y.Tameshige, M.Tsumura, M.Uchida, T.Uesaka, H.P.Yoshida, S.Yoshida Systematic analysis of inelastic α scattering off self-conjugate A=4n nuclei NUCLEAR REACTIONS 12C, 16O, 20Ne, 24Mg, 28Si, 40Ca(α, α), (α, α'), E=130, 386 MeV; measured Eα, Iα, elastic and inelastic σ(θ, E) using Grand Raiden (GR) magnetic spectrometer with two multiwire drift chambers and two plastic scintillation counters at the AVF cyclotron of Research Center of Nuclear Physics (RCNP), Osaka University. 12C, 16O, 20Ne, 24Mg, 28Si, 40Ca; deduced levels, J, π, L transfers, EWSR strengths of the isoscalar dipole transitions. DWBA and coupled-channel (CC) analysis of σ(θ) distributions with the density-independent (DI) and density-dependent (DD) α-nucleus interactions.
doi: 10.1103/PhysRevC.97.014601
2018BA20 Phys.Rev. C 97, 054315 (2018) Characteristic α and 6He decays of linear-chain structures in 16C NUCLEAR STRUCTURE 16C; calculated angular-momentum-projected energy surface contours in (β, γ) plane for 0+ and 1- states, density distributions, valence neutron orbits, levels, J, π, B(E2), α-decay and 6He-decay reduced widths of linear-chain states, α-cluster and neutron spectroscopic factors, in-band B(E2) strengths for low-spin states in the ground, triangular, and linear-chain bands. Antisymmetrized molecular dynamics (AMD) calculations. Comparison with available experimental data.
doi: 10.1103/PhysRevC.97.054315
2017BA14 Phys.Rev. C 95, 064318 (2017) Three-body decay of linear-chain states in 14C NUCLEAR STRUCTURE 14C; calculated energies, Γα, Γ(6He), Γ(10Be) and Γ(6He+8Be) for levels in 14C up to 8+, and decays to 0+, 2+, 1- and 2- states in 10Be, and comparison with the observed resonances in α+10Be resonant scattering data, proton density distribution of the linear-chain configurations; deduced π- and σ-bond linear-chain formations in 14C. 8Be; calculated density distribution. 10Be; calculated positive- and negative-parity states and proton density distributions. Antisymmetrized molecular dynamics (AMD) calculations.
doi: 10.1103/PhysRevC.95.064318
2016BA53 Phys.Rev. C 94, 044303 (2016) Structure and decay pattern of the linear-chain state in 14C NUCLEAR STRUCTURE 14C; calculated angular-momentum projected energy surface contours in (β, γ) plane for 0+ and 1- states, positive-parity energy levels up to 10+ belonging to ground band, Kπ=0+ and 2+ triangular band, π-bond linear chain band, and σ-bond linear chain band, proton and neutron rms radii, B(E2) for positive- and negative-parity states, cluster states, α-decay reduced widths. Antisymmetrized molecular dynamics (AMD) calculations. Comparison with available experimental data.
doi: 10.1103/PhysRevC.94.044303
2016KI01 Phys.Rev.Lett. 116, 052501 (2016) K.Kisamori, S.Shimoura, H.Miya, S.Michimasa, S.Ota, M.Assie, H.Baba, T.Baba, D.Beaumel, M.Dozono, T.Fujii, N.Fukuda, S.Go, F.Hammache, E.Ideguchi, N.Inabe, M.Itoh, D.Kameda, S.Kawase, T.Kawabata, M.Kobayashi, Y.Kondo, T.Kubo, Y.Kubota, M.Kurata-Nishimura, C.S.Lee, Y.Maeda, H.Matsubara, K.Miki, T.Nishi, S.Noji, S.Sakaguchi, H.Sakai, Y.Sasamoto, M.Sasano, H.Sato, Y.Shimizu, A.Stolz, H.Suzuki, M.Takaki, H.Takeda, S.Takeuchi, A.Tamii, L.Tang, H.Tokieda, M.Tsumura, T.Uesaka, K.Yako, Y.Yanagisawa, R.Yokoyama, K.Yoshida Candidate Resonant Tetraneutron State Populated by the 4He(8He, 8Be) Reaction NUCLEAR REACTIONS 4He(8He, 8Be), E=186 MeV/nucleon; measured missing-mass spectrum; deduced the tetraneutron system energy of the state with uncertainties, Q-value.
doi: 10.1103/PhysRevLett.116.052501
2014BA61 Phys.Rev. C 90, 064319 (2014) 3α clustering in excited states of 16C NUCLEAR STRUCTURE 16C; calculated energy curve of 0+ states as functions of quadrupole deformation parameter, density distribution contours, levels, J, π, bands, proton and neutron root-mean-square radii, B(E2) for the ground, triangular, and linear-chain configurations of the 8He+8Be, 6He+10Be and 4He+12Be clusters. Prediction of the presence of rotational bands associated with 3α cluster states, and yrast 10+ state at 27.8 MeV. Antisymmetrized molecular dynamics (AMD) calculations for 3α clusters.
doi: 10.1103/PhysRevC.90.064319
2005KI17 Nucl.Instrum.Methods Phys.Res. A552, 329 (2005) T.Kii, T.Shima, T.Baba, Y.Nagai A time projection chamber for the study of nuclear photodisintegration NUCLEAR REACTIONS 4He(γ, p), (γ, n), E ≈ 27.6 MeV; measured particle spectra, tp-, (3He)n-coin. Time projection chamber.
doi: 10.1016/j.nima.2005.07.003
2005SH51 Phys.Rev. C 72, 044004 (2005) T.Shima, S.Naito, Y.Nagai, T.Baba, K.Tamura, T.Takahashi, T.Kii, H.Ohgaki, H.Toyokawa Simultaneous measurement of the photodisintegration of 4He in the giant dipole resonance region NUCLEAR REACTIONS 4He(γ, p), (γ, n), (γ, np), E=21.8-29.8 MeV; 12C(γ, p), (γ, n), E=22.3-32 MeV; measured charged particle spectra, photodisintegration σ, σ(θ). Monoenergetic pulsed photons, comparison with previous results and model predictions.
doi: 10.1103/PhysRevC.72.044004
2004KA13 J.Phys.Soc.Jpn. 73, 608 (2004) J.Kasagi, H.Yuki, T.Baba, T.Noda, J.Taguchi, M.Shimokawa, W.Galster Strongly Enhanced Li + D Reaction in Pd Observed in Deuteron Bombardment on PdLix with Energies between 30 and 75 keV NUCLEAR REACTIONS 6,7Li(d, α), E=30-75 keV; measured thick-target yields for PdLi and AuLi targets; deduced environmental effects.
doi: 10.1143/JPSJ.73.608
2003SH18 Phys.Scr. T104, 164 (2003) T.Shima, Y.Nagai, S.Naito, K.Tamura, T.Baba, T.Takahashi, H.Ohgaki, T.Kii, H.Toyokawa Photonuclear Reactions of 3He and 4He at Low Energies and Few Body Problems NUCLEAR REACTIONS 3He(γ, p), (γ, 2p), (γ, X), E=10.5, 16.5 MeV; 4He(γ, p), (γ, n), (γ, X), E=23.4, 26.2, 29.9 MeV; measured σ. Comparison with previous data, model predictions.
doi: 10.1238/Physica.Topical.104a00164
2003SH27 Nucl.Phys. A718, 23c (2003) T.Shima, S.Naito, Y.Nagai, T.Baba, K.Tamura, H.Ohgaki, T.Kii, H.Toyokawa Photodisintegration cross sections of 3He and 4He at low energies NUCLEAR REACTIONS 4He(γ, n), (γ, p), (γ, X), E=21.4, 23.4, 26.2, 29.9 MeV; 3He(γ, p), (γ, 2p), (γ, X), E=10.5, 16.5 MeV; measured photodisintegration and total absorption σ. Comparisons with previous results.
doi: 10.1016/S0375-9474(03)00675-4
2002KA45 J.Nucl.Sci.Technol.(Tokyo) 39, 705 (2002) T.Katoh, S.Nakamura, K.Furutaka, H.Harada, T.Baba, T.Fujii, H.Yamana Measurement of Thermal Neutron Capture Cross Section and Resonance Integral of the 166mHo(n, γ)167Ho Reaction using a Two-Step Irradiation Technique NUCLEAR REACTIONS 166mHo(n, γ), E=thermal; measured capture σ; deduced resonance integral. Two-step irradiation technique. RADIOACTIVITY 167Ho(β-) [from 166Ho(n, γ)]; measured Eγ, Iγ, T1/2.
doi: 10.1080/18811248.2002.9715252
2002KA63 J.Phys.Soc.Jpn. 71, 2881 (2002) J.Kasagi, H.Yuki, T.Baba, T.Noda, T.Ohtsuki, A.G.Lipson Strongly Enhanced DD Fusion Reaction in Metals Observed for keV D+ Bombardment NUCLEAR REACTIONS 2H(d, p), E=2.5-10 keV; measured proton yields; deduced reaction rate dependence on host material. Deuteron target nuclei embedded in Ti, Fe, Pd, PdO, and Au.
doi: 10.1143/JPSJ.71.2881
2001SH23 Nucl.Phys. A687, 127c (2001) T.Shima, Y.Nagai, T.Baba, T.Takahashi, T.Kii, H.Ohgaki, H.Toyokawa GDR Problem in Photodisintegration of 4He NUCLEAR REACTIONS 4He(γ, p), (γ, n), (γ, np), 12C(γ, X), E=22.5, 28.9 MeV, measured σ. 4He deduced absence of GDR peak at 25 MeV. Comparison with different theoretical calculations.
doi: 10.1016/S0375-9474(01)00611-X
1999KI12 Phys.Rev. C59, 3397 (1999) T.Kii, T.Shima, H.Sato, T.Baba, Y.Nagai Cross Section of the 14N(n, p)14C Reaction from 10 to 100 keV Measured by a Gas Scintillation Drift Chamber NUCLEAR REACTIONS 14N(n, p), E=10-100 keV; measured σ. Gas scintillation drift chamber. Astrophysical implications discussed.
doi: 10.1103/PhysRevC.59.3397
1999NA15 Nucl.Instrum.Methods Phys.Res. A423, 404 (1999) S.Naito, A.Tomyo, T.Shima, T.Kii, T.Baba, T.Takahashi, Y.Nagai KENS keV Neutron Flux for Nuclear Astrophysics NUCLEAR REACTIONS 7Li(p, n), E not given; measured neutron spectra; deduced detector efficiency. Ta(p, nX), E=500 MeV; measured neutron spectra, flux. Spallation neutron source characteristics.
doi: 10.1016/S0168-9002(98)01307-2
1999TA29 Eur.Phys.J. A 6, 119 (1999) M.Tanigaki, K.Sekiguchi, M.Fujita, T.Hoshino, T.Baba, N.Kawamura, T.Shinozuka, M.Fujioka Lifetime Measurement of the First Excited State of 64Ga NUCLEAR REACTIONS 63Cu(3He, 2n), E=16 MeV; measured Eγ, Iγ(t). 64Ga level deduced J, π, T1/2, B(E2). Pulsed beam technique.
doi: 10.1007/s100500050325
1998CO13 Phys.Rev. C57, 3185 (1998) A.A.Cowley, G.J.Arendse, R.F.Visser, G.F.Steyn, S.V.Fortsch, J.J.Lawrie, J.V.Pilcher, T.Noro, T.Baba, K.Hatanaka, M.Kawabata, N.Matsuoka, Y.Mizuno, M.Nomachi, K.Takahisa, K.Tamura, Y.Yuasa, H.Sakaguchi, T.Itoh, H.Takeda, Y.Watanabe Rescattering in Knockout Reactions as Manifested in 40Ca(p, p'p'') at an Incident Energy of 392 MeV NUCLEAR REACTIONS 40Ca(p, 2p), E=392 MeV; measured σ(E(p1), E(p2), θ); deduced reaction mechanism. DWIA analysis.
doi: 10.1103/PhysRevC.57.3185
1998NO04 Nucl.Phys. A629, 324c (1998) T.Noro, T.Baba, K.Hatanaka, M.Ito, M.Kawabata, N.Matsuoka, Y.Mizuno, S.Morinobu, M.Nakamura, A.Okihana, K.Sagara, H.Sakaguchi, K.Takahisa, H.Takeda, A.Tamii, K.Tamura, M.Tanaka, S.Toyama, H.Yamazaki, Y.Yuasa, H.Yoshida, M.Yosoi A Study of Nucleon Properties in Nuclei Through (p, 2p) Reactions NUCLEAR REACTIONS 6Li, 12C, 16O, 40Ca(polarized p, 2p), E=392 MeV; measured separation energy spectra, σ(θ), A(y); deduced small multistep process contribution, medium effects. Two-arm spectrometer system.
doi: 10.1016/S0375-9474(97)00706-9
1998SH05 Nucl.Phys. A629, 475c (1998) T.Shima, Y.Nagai, T.Kii, T.Baba, T.Takahashi, H.Ohgaki Precision Test of Charge Symmetry of Nuclear Force Via Photonuclear Reactions of 4He NUCLEAR REACTIONS 4He(γ, n), (γ, p), E=25 MeV; measured σ. Laser-Compton scattered beam.
doi: 10.1016/S0375-9474(97)00725-2
1998YU06 Pisma Zh.Eksp.Teor.Fiz. 68, 785 (1998); JETP Lett. 68, 823 (1998) H.Yuki, J.Kasagi, A.G.Lipson, T.Ohtsuki, T.Baba, T.Noda, B.F.Lyakhov, N.Asami Anomalous Enhancement of DD Reaction in Pd and Au/Pd/PdO Heterostructure Targets Under Low-Energy Deuteron Bombardment NUCLEAR REACTIONS 2H(d, p), E=2.5-10 keV; measured proton thick target yields; deduced screening parameters in Pd and Au/Pd/PdO targets.
doi: 10.1134/1.567800
1997SH29 Nucl.Phys. A621, 231c (1997) T.Shima, F.Okazaki, T.Kikuchi, T.Kobayashi, T.Kii, T.Baba, Y.Nagai, M.Igashira Measurement of the 13C(n, γ)14C Cross Section at Stellar Energies NUCLEAR REACTIONS 13C(n, γ), E=10-87 keV; measured Eγ, Iγ; deduced σ, deviations from 1/v law.
doi: 10.1016/S0375-9474(97)00243-1
1996NA30 Nucl.Instrum.Methods Phys.Res. A382, 321 (1996) Y.Nagashima, R.Seki, T.Baba, N.Funaya, N.Miyazaki, T.Takahashi, T.Kaikura, T.Aoki, K.Furuno, O.Hara, F.Koike AMS Studies at the University of Tsukuba
doi: 10.1016/S0168-9002(96)00628-6
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