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NSR database version of March 21, 2024.

Search: Author = L.S.Geng

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2024ZH13      Chin.Phys.C 48, 014107 (2024)

R.-Y.Zheng, X.-X.Sun, G.-f.Shen, L.-Sh.Geng

Evolution of N = 20, 28, 50 shell closures in the 20≤Z≤30 region in deformed relativistic Hartree-Bogoliubov theory in continuum

NUCLEAR STRUCTURE Z=20-30; calculated charge radii, two-neutron separation energies, two-neutron gaps, quadrupole deformations, and single-particle levels with the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) with the density functional PC-PK1. Comparison with available data.

doi: 10.1088/1674-1137/ad0bf2
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2023DO02      Phys.Lett. B 838, 137726 (2023)

X.-X.Dong, R.An, J.-X.Lu, L.-S.Geng

Nuclear charge radii in Bayesian neural networks revisited

NUCLEAR STRUCTURE Z>19; analyzed available data; deduced nuclear charge radii using a refined Bayesian neural network (BNN) based approach with six inputs including the proton number, mass number, and engineered features associated with the pairing effect, shell effect, isospin effect, and "abnormal" shape staggering effect of mercury nuclei.

doi: 10.1016/j.physletb.2023.137726
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2023XI09      Phys.Lett. B 845, 138160 (2023)

Y.Xiao, S.-Z.Xu, R.-Y.Zheng, X.-X.Sun, L.-S.Geng, S.-S.Zhang

One-proton emission from 148-151Lu in the DRHBc+WKB approach

RADIOACTIVITY 148,149,150,151Lu(p); analyzed available data; deduced proton-nucleus potential from the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc), oblate deformation, T1/2, the DRHBc + WKB approach provides a new alternative method to evaluate the half-lives of well-deformed proton emitters.

doi: 10.1016/j.physletb.2023.138160
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2022AN12      Chin.Phys.C 46, 054101 (2022)

R.An, S.-S.Zhang, L.-S.Geng, F.-S.Zhang

Charge radii of potassium isotopes in the RMF (BCS)* approach

NUCLEAR STRUCTURE 37,38,39,40,41,42,43,44,45,46,47,48,49,50,51K; calculated odd-even staggerings of binding energies, and charge radii of potassium isotopes. Comparison with available data.

doi: 10.1088/1674-1137/ac4b5c
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2022DO01      Phys.Rev. C 105, 014308 (2022)

X.-X.Dong, R.An, J.-X.Lu, L.-S.Geng

Novel Bayesian neural network based approach for nuclear charge radii

NUCLEAR STRUCTURE 34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55Ca, 32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55K; calculated charge radii by the Nerlo-Pomorska and Pomorski (NP) formula, D2 and D4 models, and compared with the experimental data; deduced strong odd-even staggerings. Novel approach combining a three-parameter formula and Bayesian neural network for charge radii.

doi: 10.1103/PhysRevC.105.014308
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2022SO01      Phys.Rev. C 105, 035203 (2022)

J.Song, Z.-W.Liu, K.-W.Li, L.-S.Geng

Test of the hyperon-nucleon interaction within leading order covariant chiral effective field theory

NUCLEAR REACTIONS 1H(Σ-, nΛ), (Σ-, nΣ0), (Σ-, pΣ-), (Λ, pΛ), 1NN(Σ+, pΛ), (Σ+, pΣ0), (Σ+, nΣ+), E=100-900 MeV/c; 1H(Λ, nΣ+), pΣ0 E=600-900 MeV/c; calculated σ(E), σ(θ). Leading order covariant chiral effective field theory. Comparison to available experimental data and other theoretical predictions.

doi: 10.1103/PhysRevC.105.035203
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2022WA04      Phys.Rev. C 105, 014003 (2022)

C.-X.Wang, J.-X.Lu, Y.Xiao, L.-S.Geng

Nonperturbative two-pion exchange contributions to the nucleon-nucleon interaction in covariant baryon chiral perturbation theory

doi: 10.1103/PhysRevC.105.014003
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2021LI13      Phys.Rev. C 103, 025201 (2021)

Z.-W.Liu, J.Song, K.-W.Li, L.-S.Geng

Strangeness S = -3 ands S = -4 baryon-baryon interactions in relativistic chiral effective field theory

doi: 10.1103/PhysRevC.103.025201
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2021RE09      Chin.Phys.Lett. 38, 062101 (2021)

X.-L.Ren, C.-X.Wang, K.-W.Li, L.-S.Geng, J.Meng

Relativistic Chiral Description of the 1S0 Nucleon-Nucleon Scattering

doi: 10.1088/0256-307X/38/6/062101
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2020AN13      Phys.Rev. C 102, 024307 (2020)

R.An, L.-S.Geng, S.-S.Zhang

Novel ansatz for charge radii in density functional theories

NUCLEAR STRUCTURE 16,17,18,19,20,21,22,23,24,25,26,27O, 17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36Ne, 19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40Mg, 36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54Ca, 46,47,48,49,50,51,52,53,54,55,56,57,58,59,60Cr, 55,56,57,58,59,60,61,62,63,64,65,66,67,68Ni, 69,70,71,72,73,74,75,76,77,78,79,80,81,82Ge, 84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110Zr, 100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134Cd, 100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138Sn, 179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222Pb; calculated rms charge radii, odd-even staggering in the binding energies using the relativistic mean field model (RMF) with the pairing interaction treated by BCS method, and by adding a correction term, proportional to the number of Cooper pairs. Comparison to available experimental data, and with other theoretical calculations.

doi: 10.1103/PhysRevC.102.024307
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2020MO27      Eur.Phys.J. A 56, 173 (2020)

R.Molina, L.R.Dai, L.S.Geng, E.Oset

J/ψ decay into φ(w) and vector-vector molecular states

doi: 10.1140/epja/s10050-020-00176-y
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2020SO23      Phys.Rev. C 102, 065208 (2020)

J.Song, Y.Xiao, Z.-W.Liu, C.-X.Wang, K.-W.Li, L.-S.Geng

ΛcN interaction in leading-order covariant chiral effective field theory

doi: 10.1103/PhysRevC.102.065208
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2020XI06      Phys.Rev. C 102, 054001 (2020)

Y.Xiao, C.-X.Wang, J.-X.Lu, L.-S.Geng

Two-pion exchange contributions to the nucleon-nucleon interaction in covariant baryon chiral perturbation theory

doi: 10.1103/PhysRevC.102.054001
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2019XI02      Phys.Rev. C 99, 024004 (2019)

Y.Xiao, L.-S.Geng, X.-L.Ren

Covariant nucleon-nucleon contact Lagrangian up to order O(q4)

doi: 10.1103/PhysRevC.99.024004
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2018LI66      Phys.Rev. C 98, 065203 (2018)

K.-W.Li, T.Hyodo, L.-S.Geng

Strangeness S = -2 baryon-baryon interactions in relativistic chiral effective field theory

doi: 10.1103/PhysRevC.98.065203
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2018SO10      Phys.Rev. C 97, 065201 (2018)

J.Song, K.-W.Li, L.-S.Geng

Strangeness S = -1 hyperon-nucleon interactions: Chiral effective field theory versus lattice QCD

doi: 10.1103/PhysRevC.97.065201
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2016CH26      Phys.Rev. C 93, 065203 (2016)

H.-X.Chen, L.-S.Geng, W.-H.Liang, E.Oset, E.Wang, J.-J.Xie

Looking for a hidden-charm pentaquark state with strangeness S = -1 from Ξ-b decay into J/ψ K-Λ

doi: 10.1103/PhysRevC.93.065203
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2016OS01      Nucl.Phys. A954, 371 (2016)

E.Oset, H.-X.Chen, A.Feijoo, L.-S.Geng, W.-H.Liang, D.-M.Li, J.-X.Lu, V.K.Magas, J.Nieves, A.Ramos, L.Roca, E.Wang, J.-J.Xie

Study of reactions disclosing hidden charm pentaquarks with or without strangeness

doi: 10.1016/j.nuclphysa.2016.04.038
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2016XI02      Phys.Rev. C 93, 025202 (2016)

J.-J.Xie, E.Oset, L.-S.Geng

Photoproduction of the f'2(1525), a2(1320) and k*2(1430)

doi: 10.1103/PhysRevC.93.025202
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2014NI07      Eur.Phys.J. A 50, 57 (2014)

F.Aceti, L.R.Dai, L.S.Geng, E.Oset, Y.Zhang

Meson-baryon components in the states of the baryon decuplet

doi: 10.1140/epja/i2014-14057-2
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2014RE10      Eur.Phys.J. A 50, 133 (2014)

X.-L.Ren, L.-S.Geng, E.Oset, J.Meng

Tes of h1(1830) made of K*K*-bar with the ηc → φK*K*-bar decay

doi: 10.1140/epja/i2014-14133-7
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2014XI07      Phys.Rev. C 90, 048201 (2014)

J.-J.Xie, L.-S.Geng, X.-R.Chen

The p-bar p → φφ reaction in an effective Lagrangian approach

doi: 10.1103/PhysRevC.90.048201
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2010GE03      Eur.Phys.J. A 44, 305 (2010)

L.S.Geng, F.K.Guo, C.Hanhart, R.Molina, E.Oset, B.S.Zou

Study of the f2(1270), f2'(1525), f0(1370) and f0(1710) in the J/ψ radiative decays

doi: 10.1140/epja/i2010-10971-5
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2010MA70      Nucl.Phys. A835, 337c (2010)

J.Martin Camalich, L.S.Geng, L.Alvarez-Ruso, M.J.Vicente Vacas

Properties of hyperons in chiral perturbation theory

doi: 10.1016/j.nuclphysa.2010.01.213
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2009GE03      Phys.Rev. C 79, 025203 (2009)

L.S.Geng, E.Oset, B.S.Zou, M.Doring

Role of the N*(1535) in the J/ψ → p(bar)ηp and J/ψ → p(bar)K+ Λ reactions

doi: 10.1103/PhysRevC.79.025203
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2009GE05      Eur.Phys.J. A 39, 81 (2009)

L.S.Geng, E.Oset, J.R.Pelaez, L.Roca

Nature of the axial-vector mesons from their Nc behavior within the chiral unitary approach

doi: 10.1140/epja/i2008-10689-y
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2009OS02      Nucl.Phys. A827, 255c (2009)

E.Oset, L.S.Geng, D.Gamermann, R.Molina, D.Nicmorus, J.Yamagata-Sekihara, H.Nagahiro, S.Hirenzaki, D.Jido, M.Doring, A.Ramos

Meson and Baryon resonances

doi: 10.1016/j.nuclphysa.2009.05.050
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2008GE06      Eur.Phys.J. A 38, 239 (2008)

L.S.Geng, E.Oset, B.S.Zou

Testing the nature of the Λ(1520) in the J\ψ → Λ-barK-p and J\ψ → Λ-barπ+π-Λ reactions

doi: 10.1140/epja/i2008-10673-7
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2008SU16      Phys.Rev. C 78, 025806 (2008)

B.Sun, F.Montes, L.S.Geng, H.Geissel, Yu.A.Litvinov, J.Meng

Application of the relativistic mean-field mass model to the r-process and the influence of mass uncertainties

NUCLEAR STRUCTURE A=60-220, Z=30-90; calculated one-neutron separation energies, neutron shell gaps, solar r-process abundances. Relativistic mean-field mass model.

doi: 10.1103/PhysRevC.78.025806
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2007AL33      Phys.Rev. C 75, 055501 (2007); Erratum Phys.Rev. C 80, 019906 (2009)

L.Alvarez-Ruso, L.S.Geng, S.Hirenzaki, M.J.Vicente Vacas

Charged current neutrino-induced coherent pion production

NUCLEAR REACTIONS 12C(ν, X), E< 2 GeV; calculated cross sections, σ, and momentum distributions for coherent pion production.

doi: 10.1103/PhysRevC.75.055501
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2007AL54      Phys.Rev. C 76, 068501 (2007); Erratum Phys.Rev. C 80, 029904 (2009)

L.Alvarez-Ruso, L.S.Geng, M.J.Vicente Vacas

Neutral current coherent pion production

NUCLEAR REACTIONS 12C, 27Al, 56Fe(ν, νπ0), E=0.3-2.4 GeV; calculated neutral colored pion production cross sections.

doi: 10.1103/PhysRevC.76.068501
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2007BA82      Eur.Phys.J. Special Topics 150, 139 (2007)

S.F.Ban, L.S.Geng, W.H.Long, J.Meng, J.Peng, J.M.Yao, S.Q.Zhang, S.G.Zhou

Structure of nuclei far from the stability in relativistic approach

doi: 10.1140/epjst/e2007-00288-2
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2007GE08      Chin.Phys.Lett. 24, 1865 (2007)

Li.-S.Geng, J.Meng, H.Toki

Reflection Asymmetric Relativistic Mean Field Approach and Its Application to the Octupole Deformed Nucleus 226Ra

NUCLEAR STRUCTURE 226Ra; calculated binding energy, neutron and proton density distributions, deformation parameters using a reflection asymmetric relativistic mean field approach.

doi: 10.1088/0256-307X/24/7/021
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2007GE09      Eur.Phys.J. A 32, 201 (2007)

L.S.Geng, E.Oset, M.Doring

The radiative decay of the Δ(1405) and its two-pole structure

doi: 10.1140/epja/i2007-10371-0
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2007GE13      Eur.Phys.J. A 34, 405 (2007)

L.S.Geng, E.Oset

The role of the Λ(1405) in the pp → pK+Λ(1405) reaction

doi: 10.1140/epja/i2008-10518-5
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2007LU05      Eur.Phys.J. A 31, 273 (2007)

H.F.Lu, L.S.Geng, J.Meng

Constrained relativistic mean-field approach with fixed configurations

NUCLEAR STRUCTURE 208Pb; calculated single-particle energies vs deformation, potential energy surfaces. Constrained relativistic mean-field approach, comparison of diabatic and adiabatic calculations.

doi: 10.1140/epja/i2006-10224-4
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2006BA71      Int.J.Mod.Phys. E15, 1447 (2006)

S.F.Ban, L.S.Geng, L.Liu, W.H.Long, J.Meng, J.Peng, J.M.Yao, S.Q.Zhang, S.G.Zhou

Recent progress in relativistic many-body approach

doi: 10.1142/S0218301306005010
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2006GE03      J.Phys.(London) G32, 573 (2006)

L.S.Geng, H.Toki, E.G.Zhao

The stability and the shape of the heaviest nuclei

NUCLEAR STRUCTURE Z=101-120; calculated binding energies, deformation parameters. Relativistic mean-field model, comparison with other models.

doi: 10.1088/0954-3899/32/4/013
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2006GE07      Chin.Phys.Lett. 23, 1139 (2006)

L.-S.Geng, J.Meng, H.Toki, W.-H.Long, G.Shen

Spurious Shell Closures in the Relativistic Mean Field Model

NUCLEAR STRUCTURE 132Sn, 140Ce, 208Pb, 218U; analyzed binding energies, related data; deduced spurious shell closures in relativistic mean field model.

doi: 10.1088/0256-307X/23/5/021
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2006LU16      Chin.Phys.Lett. 23, 2940 (2006)

H.-F.Lu, L.-S.Geng, J.Meng

Fission Barrier for 240Pu in the Quadrupole Constrained Relativistic Mean Field Approach

NUCLEAR STRUCTURE 240Pu; calculated potential energy surfaces, fission barrier features, correction for center-of-mass motion.

doi: 10.1088/0256-307X/23/11/016
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2006ME11      Prog.Part.Nucl.Phys. 57, 470 (2006)

J.Meng, H.Toki, S.G.Zhou, S.Q.Zhang, W.H.Long, L.S.Geng

Relativistic continuum Hartree Bogoliubov theory for ground-state properties of exotic nuclei

doi: 10.1016/j.ppnp.2005.06.001
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2005ME14      Eur.Phys.J. A 25, 23 (2005)

J.Meng, W.Zhang, S.G.Zhou, H.Toki, L.S.Geng

Shape evolution for Sm isotopes in relativistic mean-field theory

NUCLEAR STRUCTURE 144,146,148,150,152,154,156,158Sm; calculated potential energy vs deformation, single-particle level energies. Relativistic mean-field theory, several effective interactions compared.

doi: 10.1140/epja/i2005-10066-6
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2005ZH12      Nucl.Phys. A753, 106 (2005)

W.Zhang, J.Meng, S.Q.Zhang, L.S.Geng, H.Toki

Magic numbers for superheavy nuclei in relativistic continuum Hartree-Bogoliubov theory

NUCLEAR STRUCTURE Z=100-140; calculated two-particle separation energies, pair gap energies, α-decay T1/2; deduced shell closure features. 292,304,318,348,358,378120; calculated binding energy and shell correction energy vs deformation. Relativistic continuum Hartree-Bogoliubov theory.

doi: 10.1016/j.nuclphysa.2005.02.086
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2004GE02      Nucl.Phys. A730, 80 (2004)

L.S.Geng, H.Toki, A.Ozawa, J.Meng

Proton and neutron skins of light nuclei within the relativistic mean field theory

NUCLEAR STRUCTURE 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34Ne, 18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37Na, 28,29,30,31,32,33,34,35,36,37,38,39,40,41Cl, 29,30,31,32,33,34,35,36,37,38,39,40,41Ar; calculated binding energies, radii, deformation parameters, neutron and proton separation energies. Deformed relativistic mean field.

doi: 10.1016/j.nuclphysa.2003.10.014
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2004GE17      J.Phys.(London) G30, 1915 (2004)

L.S.Geng, H.Toki, J.Meng

A systematic study of neutron magic nuclei with N = 8, 20, 28, 50, 82 and 126 in the relativistic mean-field theory

NUCLEAR STRUCTURE Z=2-98; calculated binding energies, one- and two-proton separation energies, radii, deformation parameters for N=8, 20, 28, 50, 82, 126 nuclides. Relativistic mean-field approach, comparisons with data.

doi: 10.1088/0954-3899/30/12/011
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2003GE09      Phys.Rev. C 68, 061303 (2003)

L.S.Geng, H.Toki, J.Meng

α-decay chains of 288173115 and 287172115 in the relativistic mean field theory

NUCLEAR STRUCTURE 287,288Mc, 283,284Nh, 279,280Rg, 275,276Mt, 271,272Bh, 267,268Db; calculated binding energies, deformations, Qα, α-decay T1/2. Relativistic mean-field theory, comparison with data.

doi: 10.1103/PhysRevC.68.061303
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2003SA53      Phys.Rev. C 68, 054323 (2003)

N.Sandulescu, L.S.Geng, H.Toki, G.C.Hillhouse

Pairing correlations and resonant states in the relativistic mean field theory

NUCLEAR STRUCTURE 120,122,124,126,128,130,132,134,136,138Zr; calculated single-particle energies, pairing energies, radii, resonant continuum coupling effects. Relativistic mean field theory.

doi: 10.1103/PhysRevC.68.054323
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