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NSR database version of April 27, 2024.

Search: Author = H.R.Yang

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2024YA04      Phys.Rev.Lett. 132, 072502 (2024)

H.B.Yang, Z.G.Gan, Y.J.Li, M.L.Liu, S.Y.Xu, C.Liu, M.M.Zhang, Z.Y.Zhang, M.H.Huang, C.X.Yuan, S.Y.Wang, L.Ma, J.G.Wang, X.C.Han, A.Rohilla, S.Q.Zuo, X.Xiao, X.B.Zhang, L.Zhu, Z.F.Yue, Y.L.Tian, Y.S.Wang, C.L.Yang, Z.Zhao, X.Y.Huang, Z.C.Li, L.C.Sun, J.Y.Wang, H.R.Yang, Z.W.Lu, W.Q.Yang, X.H.Zhou, W.X.Huang, N.Wang, S.G.Zhou, Z.Z.Ren, H.S.Xu

Discovery of New Isotopes ¹⁶⁰Os and ¹⁵⁶W: Revealing Enhanced Stability of the N=82 Shell Closure on the Neutron-Deficient Side

NUCLEAR REACTIONS ¹⁰⁶Cd(⁵⁸Ni, 4n)¹⁶⁰Os, E=335 MeV; measured reaction products; deduced new isotopes, σ. The Spectrometer for Heavy Atoms and Nuclear Structure (SHANS), the Sector Focusing Cyclotron of the Heavy Ion Research Facility in Lanzhou (HIRFL), China.

RADIOACTIVITY ¹⁶⁰Os(α), ¹⁵⁶W(β⁺); measured decay products, Eα, Iα; deduced α-particles energies, Q-values, T_1/2, α-decay reduced widths, N=82 shell closure toward the proton drip line. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.132.072502
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022YA15      Phys.Rev. C 105, L051302 (2022)

H.B.Yang, Z.G.Gan, Z.Y.Zhang, M.H.Huang, L.Ma, M.M.Zhang, C.X.Yuan, Y.F.Niu, C.L.Yang, Y.L.Tian, L.Guo, Y.S.Wang, J.G.Wang, H.B.Zhou, X.J.Wen, H.R.Yang, X.H.Zhou, Y.H.Zhang, W.X.Huang, Z.Liu, S.G.Zhou, Z.Z.Ren, H.S.Xu, V.K.Utyonkov, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov, D.I.Solovyev

New isotope ²⁰⁷Th and odd-even staggering in α-decay energies for nuclei with Z > 82 and N < 126

RADIOACTIVITY ²⁰⁷Th(α)[from ¹⁷⁶Hf(³⁶Ar, 5n), E=197-199 MeV]; ²⁰⁸Th(α)[from ¹⁷⁶Hf(³⁶Ar, 4n), E=197-199 MeV]; ²⁰³Ra, ¹⁹⁹Rn, ¹⁹⁵Po(α)[from ²⁰⁷Th α-decay chain]; ²⁰⁴Ra, ²⁰⁰Rn, ¹⁹⁶Po(α)[from ²⁰⁸Th α-decay chain]; measured evaporation residues (ERs), Eα, and ER-α₁-α₂-α₃-α₄ correlated α-decay chain from the decays of ²⁰⁷Th and²⁰⁸Th. ^207,208Th; deduced α-decay T_1/2, production σ. Z=84-92, N=102-126; discussed systematics of experimental and theoretically calculated (by relativistic Hartree-Fock-Bogoliubov and large-scale shell-model approaches) odd-even staggering (OES) of Q(α), Q(proton) and Q(neutron). Position-sensitive silicon strip detectors (PSSDs), non-position sensitive Si detectors, and SHANS gas-filled recoil separator at the sector focusing cyclotron facility of HIRFL, Lanzhou.

doi: 10.1103/PhysRevC.105.L051302
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022YA27      Phys.Rev. C 106, 064311 (2022)

H.B.Yang, Z.G.Gan, Z.Y.Zhang, M.H.Huang, L.Ma, M.M.Zhang, C.L.Yang, Y.L.Tian, Y.S.Wang, H.B.Zhou, X.J.Wen, J.G.Wang, Z.Zhao, S.Y.Xu, L.X.Chen, X.Y.Huang, C.X.Yuan, Y.F.Niu, H.R.Yang, W.X.Huang, Z.Liu, X.H.Zhou, Y.H.Zhang, S.G.Zhou, Z.Z.Ren, H.S.Xu, V.K.Utyonkov, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov, D.I.Solovyev

Examining the impact of α-decay energies on the odd-even staggering in half-lives: α-decay spectroscopy of ^207-209Ac

RADIOACTIVITY ^{207,208,208m,209}Ac(α)[from ¹⁷⁶Hf(³⁶Ar, X), E=197-199 MeV]; measured evaporation residues (ER), Eα, Iα, αα-coin, (ER)αα-coin; deduced T_1/2, Q values, decay branches. ^204mFr(IT) [from ²⁰⁸Ac(α)]; deduced T_1/2, isomer level energy, tentative J and π for the newly found 80-keV isomer. ²⁰⁴Fr(α)[from ^208,208mAc(α)]; deduced T_1/2. Found new α-decay branching ²⁰⁸Ac and assigned to the transition from ground state to the excited (2⁺, 4⁺) state. Comparison to the calculations performed in the framework of Wentzel-Kramers-Brillouin approximation. Spectrometer for Heavy Atoms and Nuclear Structure (SHANS) at Sector Focusing Cyclotron of the Heavy Ion Research Facility in Lanzhou (HIRFL).

doi: 10.1103/PhysRevC.106.064311
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2022ZH45      Phys.Rev. C 106, 024305 (2022)

M.M.Zhang, Y.L.Tian, Y.S.Wang, Z.Y.Zhang, Z.G.Gan, H.B.Yang, M.H.Huang, L.Ma, C.L.Yang, J.G.Wang, C.X.Yuan, C.Qi, A.N.Andreyev, X.Y.Huang, S.Y.Xu, Z.Zhao, L.X.Chen, J.Y.Wang, M.L.Liu, Y.H.Qiang, G.S.Li, W.Q.Yang, R.F.Chen, H.B.Zhang, Z.W.Lu, X.X.Xu, L.M.Duan, H.R.Yang, W.X.Huang, Z.Liu, X.H.Zhou, Y.H.Zhang, H.S.Xu, N.Wang, H.B.Zhou, X.J.Wen, S.Huang, W.Hua, L.Zhu, X.Wang, Y.C.Mao, X.T.He, S.Y.Wang, W.Z.Xu, H.W.Li, Y.F.Niu, L.Guo, Z.Z.Ren, S.G.Zhou

Fine structure in the α decay of the 8⁺ isomer in ^{216, 218}U

RADIOACTIVITY ^{216,216m,218,218m}U(α)[²¹⁸U from ¹⁸²W(⁴⁰Ar, 4n), E=190 MeV, ¹⁸⁴W(⁴⁰Ca, 2nα), E=206 MeV, ²¹⁶U from ¹⁸⁰W(⁴⁰Ar, 4n), E=191 MeV]; measured evaporation residues (EVRs), Eα, Iα, (EVR)α₁-α₂-correlations, T_1/2 using position-sensitive strip detectors (PSSDs) for α detection, and SHANS separator at HIRFL-Lanzhou. ^{216,216m,218,218m}U; deduced T_1/2, Q-values, α-branching ratio, α-decay hindrance factors. ²⁰⁴Rn, ^208,210Ra, ^212,214Th(α)[from ^216,218U α-decay chains]; measured Eα, T_1/2. ²¹²Th; deduced level, J, π, identification of the first 2+ state. ²¹⁵Ra, ^212,213,216Ac, ^{211,212,213,214,216,216m,217}Th, ^{216,217,217m,218}Pa, ^217,218,219U; observed Eα from their decays from (EVR)α-correlations. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.106.024305
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Data from this article have been entered in the XUNDL database. For more information, click here.

2021ZH22      Phys.Rev.Lett. 126, 152502 (2021)

Z.Y.Zhang, H.B.Yang, M.H.Huang, Z.G.Gan, C.X.Yuan, C.Qi, A.N.Andreyev, M.L.Liu, L.Ma, M.M.Zhang, Y.L.Tian, Y.S.Wang, J.G.Wang, C.L.Yang, G.S.Li, Y.H.Qiang, W.Q.Yang, R.F.Chen, H.B.Zhang, Z.W.Lu, X.X.Xu, L.M.Duan, H.R.Yang, W.X.Huang, Z.Liu, X.H.Zhou, Y.H.Zhang, H.S.Xu, N.Wang, H.B.Zhou, X.J.Wen, S.Huang, W.Hua, L.Zhu, X.Wang, Y.C.Mao, X.T.He, S.Y.Wang, W.Z.Xu, H.W.Li, Z.Z.Ren, S.G.Zhou

New α-Emitting Isotope ²¹⁴U and Abnormal Enhancement of α-Particle Clustering in Lightest Uranium Isotopes

RADIOACTIVITY ^214,216,218U(α) [from ^180,182W(³⁶Ar, 4n), ¹⁸⁴W(⁴⁰Ca, 2nα), E<200 MeV]; measured decay products, Eα, Iα; deduced α-decay Q-values and reduced widths, T_1/2, abnormal enhancement by the strong monopole interaction between the valence protons and neutrons. Comparison withavailable data, calculations.

doi: 10.1103/PhysRevLett.126.152502
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetS0279. Data from this article have been entered in the XUNDL database. For more information, click here.

2020ZH01      Phys.Lett. B 800, 135102 (2020)

M.M.Zhang, H.B.Yang, Z.G.Gan, Z.Y.Zhang, M.H.Huang, L.Ma, C.L.Yang, C.X.Yuan, Y.S.Wang, Y.L.Tian, H.B.Zhou, S.Huang, X.T.He, S.Y.Wang, W.Z.Xu, H.W.Li, X.X.Xu, J.G.Wang, H.R.Yang, L.M.Duan, W.Q.Yang, S.G.Zhou, Z.Z.Ren, X.H.Zhou, H.S.Xu, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov, M.V.Shumeiko

A new isomeric state in ²¹⁸Pa

RADIOACTIVITY ²¹⁸Pa(α) [from ¹⁸²W(⁴⁰Ar, 3np)²¹⁸Pa, E=190 MeV]; measured decay products, Eα, Iα, Eγ, Iγ; deduced ground and isomeric states T_1/2, α and γ-ray energies and intensities, J, π.

doi: 10.1016/j.physletb.2019.135102
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2019SU03      Phys.Rev. C 99, 024605 (2019)

Y.Z.Sun, S.T.Wang, Z.Y.Sun, X.H.Zhang, D.Yan, B.H.Sun, J.W.Zhao, Y.P.Xu, D.Y.Pang, Y.H.Yu, K.Yue, S.W.Tang, C.Dong, Y.X.Zhao, F.Fang, Y.Sun, Z.H.Cheng, X.M.Liu, P.Ma, H.R.Yang, C.G.Lu, L.M.Duan

Two-neutron removal cross sections from ^{15, 16}C at around 240 MeV/nucleon

NUCLEAR REACTIONS ¹²C(¹⁵C, X), (¹⁵C, ¹³C), (¹⁶C, X), (¹⁶C, ¹⁴C)⁸Li/¹⁰Be/¹¹Be/¹²B/¹³B/¹⁵C/¹⁶C/¹⁷N, E=237, 239 MeV/nucleon, [secondary ^15,16C beams from ⁹Be(¹⁸O, X), E=280 MeV/nucleon primary reaction followed by in-flight fragment separator RIBLL2 at HIRFL-Lanzhou]; measured reaction products, particle identification spectra, time of flight of fragments, and two-neutron removal σ(E) using multiwire drift chambers for particle detection and identification, and plastic scintillators for time of flight measurements. Comparison with previous experimental values, and theoretical calculations for two-neutron removal σ based on eikonal-model and shell-model structure information. Systematics of odd-even staggering in two-neutron removal σ from ^{15,16,17,18,19,20}C projectiles.

doi: 10.1103/PhysRevC.99.024605
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetS0188.

2019ZH46      Phys.Rev. C 100, 044609 (2019)

Y.X.Zhao, Y.Z.Sun, S.T.Wang, Z.Y.Sun, X.H.Zhang, D.Yan, D.Y.Pang, P.Ma, Y.H.Yu, K.Yue, S.W.Tang, S.M.Wang, F.Fang, Y.Sun, Z.H.Cheng, X.M.Liu, H.R.Yang, C.G.Lu, L.M.Duan

One-proton knockout from ¹⁶C at around 240 MeV/nucleon

NUCLEAR REACTIONS ¹²C(¹⁶C, ¹⁵B), E=239 MeV/nucleon, [secondary¹⁶O beam from ⁹Be(¹⁸O, X)⁸Li/¹⁰Be/¹¹Be/¹³B/¹⁶C, E=280 MeV/nucleon primary reaction using RIBLL2 at HRIFL-Lanzhou facility]; measured reaction products by magnetic rigidity (Bρ), time of flight (TOF), and energy loss (ΔE), mass yields. ¹⁶C, ¹⁵B; deduced σ for one-proton knockout, spectroscopic reduction factor. Comparison to predictions based on the eikonal reaction model with shell-model structure inputs, and with previous experimental data for ⁹Be(¹⁶C, ¹⁵B), E=75 MeV/nucleon reaction. Discussed energy dependence of the spectroscopic reduction factor, and the role of surface neutrons as spectators.

doi: 10.1103/PhysRevC.100.044609
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetS0221.