NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = R.Guo Found 25 matches. 2024GU06 Phys.Rev.Lett. 132, 092501 (2024) R.J.Guo, S.Y.Wang, C.Liu, R.A.Bark, J.Meng, S.Q.Zhang, B.Qi, A.Rohilla, Z.H.Li, H.Hua, Q.B.Chen, H.Jia, X.Lu, S.Wang, D.P.Sun, X.C.Han, W.Z.Xu, E.H.Wang, H.F.Bai, M.Li, P.Jones, J.F.Sharpey-Schafer, M.Wiedeking, O.Shirinda, C.P.Brits, K.L.Malatji, T.Dinoko, J.Ndayishimye, S.Mthembu, S.Jongile, K.Sowazi, S.Kutlwano, T.D.Bucher, D.G.Roux, A.A.Netshiya, L.Mdletshe, S.Noncolela, W.Mtshali Evidence for Chiral Wobbler in Nuclei NUCLEAR REACTIONS 58Ni(19F, n2p)74Br, E=62 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies, the angular distribution from oriented state (ADO) ratios and linear polarization values for the representative linking transitions between bands, level T1/2, partial level scheme, J, π, B(E2), bands, one-phonon wobbling excitation built on the yrast band. Doppler-shift-attenuation method, the detector array AFRODITE.
doi: 10.1103/PhysRevLett.132.092501
2023CH35 Eur.Phys.J. A 59, 142 (2023) The evolution of the chiral symmetry in cesium isotopes NUCLEAR STRUCTURE 120,121,122,123,124,125,126,127,128,129,130,131,132,133,134Cs; analyzed available data; deduced the evolution of the polar angle and azimuth angle as a function of rotational frequency, evolution of three-dimensional rotation, B(M1)/B(E2) within the microscopic three-dimensional tilted axis cranking covariant density functional theory (3DTAC-CDFT).
doi: 10.1140/epja/s10050-023-01059-8
2023XU01 Phys.Lett. B 839, 137789 (2023) W.Z.Xu, S.Y.Wang, X.G.Wu, H.Jia, C.Liu, H.F.Bai, Y.J.Li, B.Qi, H.Y.Zhang, G.S.Li, Y.Zheng, C.B.Li, L.Mu, A.Rohilla, S.Wang, D.P.Sun, Z.Q.Li, N.B.Zhang, R.J.Guo, X.C.Han, X.Xiao First observation of high-spin states in 116In and possible new region of chirality NUCLEAR REACTIONS 116Cd(7Li, X)116In, E=42 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies and relative intensities, partial level scheme, J, π, angular distributions from the oriented states (ADO) ratios, high-spin states, negative-parity band, positive-parity doublet bands. Comparison with the adiabatic and configuration-fixed constrained triaxial relativistic-mean-field and multiparticle plus rotor model calculations. The HI-13 Tandem Accelerator at the China Institute of Atomic Energy in Beijing (CIAE).
doi: 10.1016/j.physletb.2023.137789
2022BA32 Int.J.Mod.Phys. E31, 2250065 (2022) H.F.Bai, S.Y.Wang, W.Z.Xu, L.H.Zhu, X.G.Wu, D.P.Sun, C.Liu, Z.Q.Li, H.Jia, B.Qi, G.S.Li, S.Wang, R.J.Guo, X.C.Han, X.Xiao, L.Mu, C.Y.He, Y.Zheng, X.D.Wang, L.Zhu, Y.J.Li, L.Liu Shape coexistence and possible isomers in 117Sn NUCLEAR REACTIONS 114Cd(7Li, 3np)117Sn, E=48 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies, partial level scheme, J, π, DCO ratios, isomeric states. Comparison with systematics, the configuration-fixed constrained triaxial relativistic mean-field (RMF) calculations. The HI-13 tandem accelerator at China Institute of Atomic Energy in Beijing.
doi: 10.1142/S0218301322500653
2022GU12 Chin.Phys.C 46, 074107 (2022) R.-J.Guo, X.Lu, B.Qi, C.Liu, S.-Y.Wang Possible existence of chiral and multiple chiral nuclei in thallium isotopes NUCLEAR STRUCTURE 192,194,196,198,200Tl, 193,195,197,199Tl; calculated potential-energy curves and triaxiality parameter using the adiabatic and configuration-fixed constrained triaxial relativistic mean field theory.
doi: 10.1088/1674-1137/ac6248
2022GU15 Phys.Lett. B 833, 137344 (2022) R.J.Guo, S.Y.Wang, R.Schwengner, W.Z.Xu, B.Qi, C.Liu, A.Rohilla, F.Donau, T.Servene, H.Schnare, J.Reif, G.Winter, L.Kaubler, H.Prade, S.Skoda, J.Eberth, H.G.Thomas, F.Becker, B.Fiedler, S.Freund, S.Kasemann, T.Steinhardt, O.Thelen, T.Hartlein, C.Ender, F.Kock, P.Reiter, D.Schwalm Lifetime measurements in 80Br and a new region for observation of chiral electromagnetic selection rules NUCLEAR REACTIONS 76Ge(7Li, 3n), E=35 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, oriented states (DCO) ratios, lifetimes, B(E2), B(M1), branching ratios, partial level scheme. Comparison with TPRM calculations and previous results. Doppler-shift-attenuation method (DSAM), EUROBALL CLUSTER detectors, MP tandem accelerator of the Max-Planck-Institut fur Kernphysik Heidelberg.
doi: 10.1016/j.physletb.2022.137344
2022MU09 Phys.Lett. B 827, 137006 (2022) L.Mu, S.Y.Wang, C.Liu, B.Qi, R.A.Bark, J.Meng, S.Q.Zhang, P.Jones, S.M.Wyngaardt, H.Jia, Q.B.Chen, Z.Q.Li, S.Wang, D.P.Sun, R.J.Guo, X.C.Han, W.Z.Xu, X.Xiao, P.Y.Zhu, H.W.Li, H.Hua, X.Q.Li, C.G.Li, R.Han, B.H.Sun, L.H.Zhu, T.D.Bucher, B.V.Kheswa, N.Khumalo, E.A.Lawrie, J.J.Lawrie, K.L.Malatji, L.Msebi, J.Ndayishimye, J.F.Sharpey-Schafer, O.Shirinda, M.Wiedeking, T.Dinoko, S.S.Ntshangase First observation of the coexistence of multiple chiral doublet bands and pseudospin doublet bands in the A ≈ 80 mass region NUCLEAR REACTIONS 82Se(α, X)81Kr, E=65, 68 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, two nearly degenerate positive-parity bands. Comparison with the constrained covariant density functional theory and the multiparticle plus rotor model calculations.
doi: 10.1016/j.physletb.2022.137006
2022SU22 Chin.Phys.C 46, 094002 (2022) D.-P.Sun, H.-F.Bai, W.-Z.Xu, S.-Y.Wang, X.-G.Wu, H.Jia, C.Liu, B.Qi, G.-S.Li, Y.Zheng, C.-B.Li, Z.-Q.Li, S.Wang, L.Mu, N.-B.Zhang, R.-J.Guo, A.Rohilla Possible collective band in neutron-rich 119Sn NUCLEAR REACTIONS 116Cd(7li, X)119Sn, E=42 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies, J, π, partial level scheme, ADO ratios. Comparison with configuration-fixed constrained triaxial relativistic mean-field calculations and systematics. The HI-13 Tandem Accelerator at the China Institute of Atomic Energy in Beijing (CIAE).
doi: 10.1088/1674-1137/ac6f4f
2022WA21 Phys.Rev. C 106, L011303 (2022) C.G.Wang, R.Han, C.Xu, H.Hua, R.A.Bark, S.Q.Zhang, S.Y.Wang, T.M.Shneidman, S.G.Zhou, J.Meng, S.M.Wyngaardt, A.C.Dai, F.R.Xu, X.Q.Li, Z.H.Li, Y.L.Ye, D.X.Jiang, C.G.Li, C.Y.Niu, Z.Q.Chen, H.Y.Wu, D.W.Luo, S.Wang, D.P.Sun, C.Liu, Z.Q.Li, N.B.Zhang, R.J.Guo, P.Jones, E.A.Lawrie, J.J.Lawrie, J.F.Sharpey-Schafer, M.Wiedeking, S.N.T.Majola, T.D.Bucher, T.Dinoko, B.Maqabuka, L.Makhathini, L.Mdletshe, O.Shirinda, K.Sowazi First evidence of an octupole rotational band in Ge isotopes NUCLEAR REACTIONS 74Ge(α, 3nα)71Ge, E=58.6, 62.6 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO), γγ(linear polarization) using AFRODITE array for γ detection at the Separated Sector Cyclotron facility of iThemba LABS. 71Ge; deduced levels, J, π, multipolarities, alignments, rotational bands, octupole rotational band. Comparison with semi-microscopic cluster model calculations. Systematics of energies of 15/2- states in 67,69,71Ge, and those of 2+ and 3- states in 66,68,70,72,74Ge. Systematics of B(E1)/B(E2) ratios for 19/2- states in 67,71Ge in comparison to the ratio for octupole-deformed 220Ra nucleus. 71Ge, 74Se; calculated levels, J, π, B(E2) using two-center shell model (TCSM), and compared with experimental data.
doi: 10.1103/PhysRevC.106.L011303
2022XI09 Phys.Rev. C 106, 064302 (2022) X.Xiao, S.Y.Wang, C.Liu, R.A.Bark, J.Meng, S.Q.Zhang, B.Qi, H.Hua, P.Jones, S.M.Wyngaardt, S.Wang, D.P.Sun, Z.Q.Li, N.B.Zhang, H.Jia, R.J.Guo, X.C.Han, L.Mu, X.Lu, W.Z.Xu, C.Y.Niu, C.G.Wang, E.A.Lawrie, J.J.Lawrie, J.F.Sharpey-Schafer, M.Wiedeking, S.N.T.Majola, T.D.Bucher, T.Dinoko, B.Maqabuka, L.Makhathini, L.Mdletshe, N.A.Khumalo, O.Shirinda, K.Sowazi Chirality and octupole correlations in 74As NUCLEAR REACTIONS 74Ge(α, 3np), E=58.6, 62.6 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ). 74As; deduced levels, J, π, angular distributions from the oriented states (ADO) ratio, polarization asymmetry, bands structure, high-spin states, configurations, energy staggering parameter, B(M1)/B(E2) and B(E2)/B(E1) ratios, energy displacement between bands. Systematics of the excitation energies for the yrast states above I=7 in 70,72,74As. Positive-parity bands are interpreted as chiral doublet bands. Found experimental evidence of octupole correlations existence in 74As, similar to 73Br. Comparison to triaxial particle rotor model (TPRM) calculations. AFRODITE array consisting of 8 Compton suppressed clover detectors and 2 low-energy photon spectrometer (LEPS) detectors at separated Sector Cyclotron of iThemba LABS.
doi: 10.1103/PhysRevC.106.064302
2022XU06 Phys.Lett. B 833, 137287 (2022), Priv.Comm. W.Z.Xu, S.Y.Wang, C.Liu, X.G.Wu, R.J.Guo, B.Qi, J.Zhao, A.Rohilla, H.Jia, G.S.Li, Y.Zheng, C.B.Li, X.C.Han, L.Mu, X.Xiao, S.Wang, D.P.Sun, Z.Q.Li, Y.M.Zhang, C.L.Wang, Y.Li Interplay between nuclear chiral and reflection symmetry breakings revealed by the lifetime measurements in 76Br NUCLEAR REACTIONS 68Zn(12C, 3np)76Br, E=66 MeV; measured reaction products, Eγ, Iγ, γγ-coin, γγ(θ)(ADO). 76Br; deduced γ-ray energies and relative intensities, high-spin levels, J, π, multipolarities, B(M1), B(E2), bands, chirality, level T1/2. Comparison with triaxial particle rotor model (TPRM), and multidimensional-constrained covariant density function (MDC-CDFT) calculations. The Doppler-shift attenuation method (DSAM), one LEPS detector and nine Compton-suppressed HPGe detectors. HI-13 Tandem Accelerator of the China Institute of Atomic Energy (CIAE).
doi: 10.1016/j.physletb.2022.137287
2021DO09 Nature(London) 590, 561 (2021), Pub.Correction Nature(London) 604, E26 (2022) J.Dove, B.Kerns, R.E.McClellan, S.Miyasaka, D.H.Morton, K.Nagai, S.Prasad, F.Sanftl, M.B.C.Scott, A.S.Tadepalli, C.A.Aidala, J.Arrington, C.Ayuso, C.L.Barker, C.N.Brown, W.C.Chang, A.Chen, D.C.Christian, B.P.Dannowitz, M.Daugherity, M.Diefenthaler, L.El Fassi, D.F.Geesaman, R.Gilman, Y.Goto, L.Guo, R.Guo, T.J.Hague, R.J.Holt, D.Isenhower, E.R.Kinney, N.Kitts, A.Klein, D.W.Kleinjan, Y.Kudo, C.Leung, P.-J.Lin, K.Liu, M.X.Liu, W.Lorenzon, N.C.R.Makins, M.Mesquita de Medeiros, P.L.McGaughey, Y.Miyachi, I.Mooney, K.Nakahara, K.Nakano, S.Nara, J.-C.Peng, A.J.Puckett, B.J.Ramson, P.E.Reimer, J.G.Rubin, S.Sawada, T.Sawada, T.-A.Shibata, D.Su, M.Teo, B.G.Tice, R.S.Towell, S.Uemura, S.Watson, S.G.Wang, A.B.Wickes, J.Wu, Z.Xi, Z.Ye The asymmetry of antimatter in the proton NUCLEAR REACTIONS 1,2H(p, μ+), (p, μ-), E=120 GeV; measured reaction products. 1H; deduced antimatter asymmetry in the proton.
doi: 10.1038/s41586-021-03282-z
2021HA29 Phys.Rev. C 104, 014327 (2021) X.C.Han, S.Y.Wang, B.Qi, C.Liu, S.Wang, D.P.Sun, Z.Q.Li, H.Jia, R.J.Guo, X.Xiao, L.Mu, X.Lu, Q.Wang, W.Z.Xu, H.W.Li, X.G.Wu, Y.Zheng, C.B.Li, T.X.Li, Z.Y.Huang, H.Y.Wu, D.W.Luo First observation of candidate chiral doublet bands in Z=37 Rb isotopes NUCLEAR REACTIONS 76Ge(11B, 3n)84Rb, E=36 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO ratios) using an array of six Compton-suppressed HPGe detectors and one clover detector at the HI-13 tandem accelerator of CIAE-Beijing. 84Rb; deduced high-spin levels, J, π, B(M1)/B(E2) ratios, chiral doublet bands, configurations, staggering parameters. Comparison with triaxial relativistic mean-field theory and triaxial particle-rotor model calculations. Systematics of positive-parity yrast states in 76,78,80,82,84Rb.
doi: 10.1103/PhysRevC.104.014327
2021ZH18 Chin.Phys.C 45, 024002 (2021) S.-J.Zhang, Z.-J.Hu, Z.-M.Hu, C.Han, X.-H.Bai, C.-Q.Liu, C.Huang, Q.Xie, D.-Y.Huo, K.Wu, Y.-B.Nie, Y.-Y.Ding, K.Zhang, Y.Zhang, Z.-Y.Deng, R.Guo, Z.Wei, Z.-E.Yao Measurements of neutron energy spectra of 9Be(d, n)10B reaction with a thick beryllium target NUCLEAR REACTIONS 9Be(d, n), E=250-300 keV; measured reaction products, En, In; deduced TOF, neutron energy spectra.
doi: 10.1088/1674-1137/abce13
2020GU10 Chin.Phys.C 44, 074102 (2020) R.Guo, Y.-H.Liu, J.Li, W.-Ji.Sun, L.Li, Y.-J.Ma Doublet bands at borders of A ≈ 130 island of chiral candidates: Case study of 120I NUCLEAR STRUCTURE 120I; analyzed available data; calculated doublet bands, excitation energies, energy staggering parameter S(I), B(M1)/B(E2), effective angles, and K plots. Comparison with experimental data.
doi: 10.1088/1674-1137/44/7/074102
2019GU25 Phys.Rev. C 100, 034328 (2019) R.Guo, W.-J.Sun, J.Li, D.Yang, Y.Liu, C.Ru, J.Chi Systematic investigations of positive-parity doublet bands with three-quasiparticle configurations in 125, 127, 129, 131Cs NUCLEAR STRUCTURE 125,127,129,131Cs; calculated energies of positive-parity levels, energy staggering parameters, and B(M1)/B(E2) values of doublet bands, single-neutron Routhians, angular momenta as functions of the rotational frequencies, deformation parameters β and γ; assigned configurations to doublet bands. Self-consistent tilted axis cranking relativistic mean-field calculations. Comparison with experimental data.
doi: 10.1103/PhysRevC.100.034328
2019LI54 J.Phys.(London) G46, 105106 (2019) Z.-Q.Li, S.-Y.Wang, J.-Z.Guan, W.-Ju.Zhang, T.Liu, B.Qi, S.Wang, D.-P.Sun, L.Liu, C.Liu, P.Zhang, N.-B.Zhang, H.Jia, Y.-M.Zhang, R.i-J.Guo, X.Xiao, X.-C.Han, C.-Y.Niu, Z.-Q.Chen, Pi.Lv, C.-Y.Li, X.-G.Wu, G.-S.Li, C.-Y.He, Y.Zheng, C.-B.Li, H.-W.Li, P.-W.Luo First observation of high-spin states in the N=83 nucleus 142Pr NUCLEAR REACTIONS 138Ba(7Li, 3n), E = 38 MeV; measured reaction products, Eγ, Iγ; deduced level energies, J, π, asymmetric angular distribution from oriented states (ADO). Comparison with systematics, shell model calculations.
doi: 10.1088/1361-6471/ab3698
2018NI04 Phys.Rev. C 97, 034322 (2018) C.Y.Niu, A.C.Dai, C.Xu, H.Hua, S.Q.Zhang, S.Y.Wang, R.A.Bark, J.Meng, C.G.Wang, X.G.Wu, X.Q.Li, Z.H.Li, S.M.Wyngaardt, H.L.Zang, Z.Q.Chen, H.Y.Wu, F.R.Xu, Y.L.Ye, D.X.Jiang, R.Han, C.G.Li, X.C.Chen, Q.Liu, J.Feng, B.Yang, Z.H.Li, S.Wang, D.P.Sun, C.Liu, Z.Q.Li, N.B.Zhang, R.J.Guo, G.S.Li, C.Y.He, Y.Zheng, C.B.Li, Q.M.Chen, J.Zhong, W.K.Zhou, B.J.Zhu, L.T.Deng, M.L.Liu, J.G.Wang, P.Jones, E.A.Lawrie, J.J.Lawrie, J.F.Sharpey-Schafer, M.Wiedeking, S.N.T.Majola, T.D.Bucher, T.Dinoko, B.Magabuka, L.Makhathini, L.Mdletshe, N.A.Khumalo, O.Shirinda, K.Sowazi Spectroscopic study of the possibly triaxial transitional nucleus 75Ge NUCLEAR REACTIONS 74Ge(α, n2p), E=58.6, 62.6 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO ratios) using AFRODITE array at the Separated Sector Cyclotron of iThemba LABS, South Africa. 75Ge; deduced high-spin levels, J, π, collective bands, configurations. Systematics of level structures in N=43 isotones 75Ge, 77Se and 79Kr; calculated configuration-constrained potential energy surfaces (PES). Comparison of levels with triaxial particle rotor model calculations.
doi: 10.1103/PhysRevC.97.034322
2017GU19 Chin.Phys.C 41, 084105 (2017) R.-J.Guo, Z.-Q.Li, C.Liu, Y.-H.Tian, S.-Y.Wang Shell-model calculations for the semi-magic nucleus 85Br and systematic features of the N = 50 odd-A isotones* NUCLEAR STRUCTURE 85Br; calculated energy levels, J, π. Shell-model code nushellx within a large model space containing the neutron-core excitations across the N = 50 closed shell.
doi: 10.1088/1674-1137/41/8/084105
2009CH62 Chin.J.Phys.(Taiwan) 47, 788 (2009) The Projected Shell Model Description of the Yrast Bands in Superdeformed Thallium Nuclei NUCLEAR STRUCTURE 189,190,191,192,193Tl; calculated yrast superdeformed bands; deduced microscopic understanding of these nuclei. Comparison with experiment.
2006GU04 J.Phys.(London) G32, 269 (2006) Projected shell model description of N = 114 superdeformed isotone nuclei NUCLEAR STRUCTURE 194Hg, 196Pb, 198Po; calculated superdeformed bands transitions energies, moments of inertia, transition quadrupole moments. 195Tl, 197Bi; calculated superdeformed bands transitions energies, moments of inertia, B(M1). Projected shell model, comparisons with data.
doi: 10.1088/0954-3899/32/3/003
2004GU14 J.Phys.(London) G30, 989 (2004) A study of the yrast superdeformed even-even and odd-even A ≈ 190 nuclei by the projected shell model NUCLEAR STRUCTURE 189,191,194Hg, 192,193,194,195,197Pb; calculated superdeformed bands level energies, moments of inertia. Projected shell model, comparison with data.
doi: 10.1088/0954-3899/30/9/004
2003GU02 Chin.J.Phys.(Taiwan) 41, 1 (2003) Projected Shell Model Studies of High-Spin Properties in the Superdeformed Mass-60 Region NUCLEAR STRUCTURE 60,61,62,63,64,65,66,68Zn; calculated superdeformed bands moments of inertia, energy, transition quadrupole moments vs spin. Projected shell model, comparison with data.
2000GU34 J.Phys.(London) G26, 1775 (2000) Interacting Boson-Fermion Model Description of the Positive High-Spin States of the Odd Er Isotopes NUCLEAR STRUCTURE 154,155,156,157,158,159,160,161,162,163,164,165Er; calculated high-spin levels, J, B(E2) for positive parity bands. IBM calculations. Comparison with experimental values.
doi: 10.1088/0954-3899/26/12/302
1996AN28 Nucl.Instrum.Methods Phys.Res. A383, 13 (1996) J.Antos, H.-Y.Chao, P.Chang, M.-T.Cheng, M.-L.Chu, R.-S.Guo, C.-L.Ho, P.-K.Teng, M.-J.Wang, S.-C.Wu, G.-P.Yeh, P.Yeh, J.Andressen, E.Barsotti, M.Bowden, S.Cihangir, H.Gonzalez, C.Grimm, B.Haynes, M.Hrycyk, J.Howell, D.Husby, W.Knopf, M.Lindenmeyer, P.Ratzmann, J.Sarge, J.Spalding, L.Spiegel, S.Tkaczyk, K.Woodbury, R.Yarema, S.Zimmerman, T.Zimmerman, C.Gay, J.Huth, J.Oliver, M.Spiropulu, R.Stroehmer, Y.Iwata, T.Ohmoto, T.Ohsugi, B.Barnett, J.Skarha, R.Snider, R.Takashima, R.Ely, M.Garcia-Sciveres, C.Haber, O.Milgrome, L.Lu, M.Bailey, N.Bruner, M.Gold, M.Hoeferkamp, J.Matthews, E.Moore, S.Seidel, T.Thomas, S.Worm, L.Yu, T.Kohriki, Y.Unno, N.Tamura, N.Bacchetta, D.Bisello, G.Bolla, J.Boudreau, E.Engels, Jr., B.T.Huffman, P.F.Shepard, R.Rosatti, F.Bedeschi, A.Menzione, G.Punzi, L.Ristori, F.Zetti, D.Bortoletto, A.Garfinkel, A.Hardmann, K.Hoffman, T.Keaffaber, N.M.Shaw, J.Cassada, P.Tipton, J.Conway, J.Done, T.Kamon, B.Tannenbaum, J.Wolinski, D.Benjamin, M.Frautschi, A.Sill, J.F.Hou The SVX II Silicon Vertex Detector Upgrade at CDF
doi: 10.1016/S0168-9002(96)00688-2
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