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Search: Author = E.Dragulescu

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2012BU03      Phys.Rev. C 85, 017304 (2012)

D.Bucurescu, E.Dragulescu, S.Pascu, H-F.Wirth, D.Filipescu, G.Cata-Danil, I.Cata-Danil, D.Deleanu, K.Eppinger, T.Faestermann, D.G.Ghita, T.Glodariu, R.Hertenberger, M.Ivascu, R.Krucken, N.Marginean, R.Marginean, C.Mihai, A.Negret, T.Sava, L.Stroe, K.Wimmer, N.V.Zamfir

Excited states of the ¹⁵⁰Pm odd-odd nucleus

NUCLEAR REACTIONS ¹⁴⁰Ce, ¹⁴²Nd, ¹⁵²Sm(d, α), E=25 MeV; measured E(α), I(α) with Q3D spectrograph at Munich. ¹⁵⁰Pm, ¹⁴⁰Pr, ¹³⁸La; deduced levels. ¹⁵⁰Nd(p, n), E=7.1 MeV; measured Eγ, Iγ, γγ-coin. ¹⁵⁰Pm; deduced levels. Comparison with results from other reactions.

doi: 10.1103/PhysRevC.85.017304
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2011DA08      Phys.Rev. C 83, 054312 (2011)

J.M.Daugas, I.Matea, J.-P.Delaroche, M.Pfutzner, M.Sawicka, F.Becker, G.Belier, C.R.Bingham, R.Borcea, E.Bouchez, A.Buta, E.Dragulescu, G.Georgiev, J.Giovinazzo, M.Girod, H.Grawe, R.Grzywacz, F.Hammache, F.Ibrahim, M.Lewitowicz, J.Libert, P.Mayet, V.Meot, F.Negoita, F.de Oliveira Santos, O.Perru, O.Roig, K.Rykaczewski, M.G.Saint-Laurent, J.E.Sauvestre, O.Sorlin, M.Stanoiu, I.Stefan, Ch.Stodel, Ch.Theisen, D.Verney, J.Zylicz

β-decay measurements for N > 40 Mn nuclei and inference of collectivity for neutron-rich Fe isotopes

RADIOACTIVITY ^58,59,60,61Ti, ^61,62,63,64V, ^63,64,65,66Cr, ^{64,65,66,67,68,69}Mn, ^{67,68,69,70,71}Fe, ^{69,70,71,72,73,74}Co(β^-)[from ⁸⁶Kr(Ta, X), E=57.8 MeV/nucleon]; measured β spectra, Eγ, Iγ, βγ-coin, half-lives. Comparison with previous half-life measurements. ⁶⁷Mn(β^-n); measured beta-delayed neutron emission probability. ^66,67,68Fe; deduced levels, J, π, multipolarity. Comparison with mean-field calculations.

NUCLEAR STRUCTURE ^66,68Fe; calculated levels, J, π, PES, neutron single-particle levels. Application to ⁶⁷Fe structure. Beyond-mean-field calculations with the Gogny D1S force. Systematics of first 2+ states in N=24-50 Fe isotopes.

doi: 10.1103/PhysRevC.83.054312
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2004SA13      Eur.Phys.J. A 20, 109 (2004)

M.Sawicka, M.Pfutzner, R.Grzywacz, J.M.Daugas, I.Matea, M.Lewitowicz, H.Grawe, F.Becker, G.Belier, C.Bingham, R.Borcea, E.Bouchez, A.Buta, E.Dragulescu, J.E.Sauvestre, G.Georgiev, J.Giovinazzo, F.Hammache, F.Ibrahim, P.Mayet, V.Meot, F.Negoita, F.de Oliveira Santos, O.Perru, O.Roig, K.P.Rykaczewski, M.G.Saint-Laurent, O.Sorlin, M.Stanoiu, I.Stefan, C.Stodel, C.Theisen, D.Verney

Evidence for an isomer in ⁷⁶Ni

NUCLEAR REACTIONS Ta(⁸⁶Kr, X)⁷¹Ni/⁷²Ni/⁷³Ni/⁷⁵Ni/⁷⁶Ni, E=58 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin. ⁷⁶Ni deduced transitions, isomer T_1/2.

doi: 10.1140/epja/i2002-10333-0
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2004SA59      Eur.Phys.J. A 22, 455 (2004)

M.Sawicka, I.Matea, H.Grawe, R.Grzywacz, M.Pfutzner, M.Lewitowicz, J.M.Daugas, B.A.Brown, A.Lisetskiy, F.Becker, G.Belier, C.Bingham, R.Borcea, E.Bouchez, A.Buta, E.Dragulescu, G.de France, G.Georgiev, J.Giovinazzo, F.Hammache, F.Ibrahim, P.Mayet, V.Meot, F.Negoita, F.De Oliveira-Santos, O.Perru, O.Roig, K.Rykaczewski, M.G.Saint-Laurent, J.E.Sauvestre, O.Sorlin, M.Stanoiu, I.Stefan, C.Stodel, Ch.Theisen, D.Verney, J.Zylicz

Beta-decay of ⁷¹Co and ⁷³Co

RADIOACTIVITY ^71,73Co(β^-) [from Ta(⁸⁶Kr, X)]; measured Eγ, Iγ, βγ-coin, T_1/2. ^71,73Ni deduced levels, J, π. Comparison with model predictions.

doi: 10.1140/epja/i2004-10047-3
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2003SA40      Phys.Rev. C 68, 044304 (2003)

M.Sawicka, R.Grzywacz, I.Matea, H.Grawe, M.Pfutzner, J.M.Daugas, M.Lewitowicz, D.L.Balabanski, F.Becker, G.Belier, C.Bingham, C.Borcea, E.Bouchez, A.Buta, M.La Commara, E.Dragulescu, G.de France, G.Georgiev, J.Giovinazzo, M.Gorska, F.Hammache, M.Hass, M.Hellstrom, F.Ibrahim, Z.Janas, H.Mach, P.Mayet, V.Meot, F.Negoita, G.Neyens, F.de Oliveira Santos, R.D.Page, O.Perru, Zs.Podolyak, O.Roig, K.P.Rykaczewski, M.G.Saint-Laurent, J.E.Sauvestre, O.Sorlin, M.Stanoiu, I.Stefan, C.Stodel, Ch.Theisen, D.Verney, J.Zylicz

Low energy levels in ⁷²Ni

RADIOACTIVITY ^70,72Co(β^-) [from Ta(⁸⁶Kr, X)]; measured β-delayed Eγ, Iγ, βγ-coin, T_1/2; deduced log ft. ^70,72Ni deduced levels, J, π. Comparison with model predictions.

doi: 10.1103/PhysRevC.68.044304
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2002SO03      Phys.Rev.Lett. 88, 092501 (2002)

O.Sorlin, S.Leenhardt, C.Donzaud, J.Duprat, F.Azaiez, F.Nowacki, H.Grawe, Zs.Dombradi, F.Amorini, A.Astier, D.Baiborodin, M.Belleguic, C.Borcea, C.Bourgeois, D.M.Cullen, Z.Dlouhy, E.Dragulescu, M.Gorska, S.Grevy, D.Guillemaud-Mueller, G.Hagemann, B.Herskind, J.Kiener, R.Lemmon, M.Lewitowicz, S.M.Lukyanov, P.Mayet, F.de Oliveira Santos, D.Pantalica, Yu.-E.Penionzhkevich, F.Pougheon, A.Poves, N.Redon, M.G.Saint-Laurent, J.A.Scarpaci, G.Sletten, M.Stanoiu, O.Tarasov, Ch.Thelsen

₂₈⁶⁸Ni₄₀: Magicity versus superfluidity

NUCLEAR REACTIONS ²⁰⁸Pb(⁶⁶Ni, ⁶⁶Ni'), (⁶⁸Ni, ⁶⁸Ni'), E ≈ 50 MeV/nucleon; ²⁰⁸Pb(⁷⁰Zn, ⁷⁰Zn'), E=65.9 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. ⁷⁰Zn, ^66,68Ni deduced transitions B(E2). Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.88.092501
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2001GR07      Nucl.Phys. A682, 41c (2001)

R.Grzywacz, C.H.Yu, Z.Janas, S.D.Paul, J.C.Batchelder, C.R.Bingham, T.N.Ginter, C.J.Gross, J.McConnell, M.Lipoglavsek, A.Piechaczek, D.C.Radford, J.J.Ressler, K.Rykaczewski, J.Shergur, W.B.Walters, E.F.Zganjar, C.Baktash, M.P.Carpenter, R.V.F.Janssens, C.E.Svensson, J.C.Waddington, D.Ward, E.Dragulescu

In-Beam Study of the N = Z Nucleus ₃₃⁶⁶As₃₃ using the Decay Tagging Technique

NUCLEAR REACTIONS ⁴⁰Ca(²⁸Si, np), E=85.3 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. ⁶⁶As deduced levels, J, π, isomers T_1/2. Clarion array, mass separator, recoil-decay tagging.

doi: 10.1016/S0375-9474(00)00620-5
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2000BR38      Phys.Rev. C62, 027303 (2000)

A.M.Bruce, J.Simpson, D.D.Warner, C.Baktash, C.J.Barton, M.A.Bentley, M.J.Brinkman, R.A.Cunningham, E.Dragulescu, L.Frankland, T.N.Ginter, C.J.Gross, R.C.Lemmon, B.MacDonald, C.D.O'Leary, S.M.Vincent, R.Wyss, C.H.Yu, N.V.Zamfir

Two-Neutron Alignment and Shape Changes in ⁶⁹As

NUCLEAR REACTIONS ⁴⁰Ca(³²S, 3p), E=105 MeV; measured Eγ, Iγ, γγ-coin. ⁶⁹As deduced high-spin levels, J, π, configurations, deformation. Recoil mass spectrometer, cranked mean-field calculations.

doi: 10.1103/PhysRevC.62.027303
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1999DR18      Pramana 53, 447 (1999)

E.Dragulescu, G.Semenescu, I.Iftimia

Nuclear Structure Studies of Nuclei Near N = 80

NUCLEAR STRUCTURE ^135,136Ba, ¹³⁶La, ¹³⁷Ce, ¹³⁹Nd; analyzed data; deduced levels, J, π. Comparison with IBM calculations.

doi: 10.1007/s12043-999-0013-z
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1994CL01      Phys.Rev. C50, 84 (1994)

R.M.Clark, R.Wadsworth, H.R.Andrews, C.W.Beausang, M.Bergstrom, S.Clarke, E.Dragulescu, T.Drake, P.J.Dagnall, A.Galindo-Uribarri, G.Hackman, K.Hauschild, I.M.Hibbert, V.P.Janzen, P.M.Jones, R.W.MacLeod, S.M.Mullins, E.S.Paul, D.C.Radford, A.Semple, J.F.Sharpey-Schafer, J.Simpson, D.Ward, G.Zwartz

Recoil Distance Lifetime Measurements of States in the Oblate Dipole Bands of ^197,198Pb

NUCLEAR REACTIONS ¹⁷⁶Yb(²⁶Mg, xn), E=125 MeV; ¹⁸⁶W(¹⁸O, xn), E=113 MeV; measured γγ-coin, DSA, Eγ. ^197,198Pb deduced high-spin levels B(λ), T_1/2, quadrupole moments, γ-branching ratio. Donau-Frauendorf model, tilted axis cranking model. Enriched targets, Ge detection, BGO suppression shields.

doi: 10.1103/PhysRevC.50.84
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1994CL02      Phys.Rev. C50, 1222 (1994)

R.M.Clark, R.Wadsworth, K.Hauschild, I.M.Hibbert, E.Dragulescu, C.W.Beausang, M.H.Bergstrom, S.Clarke, P.J.Dagnall, P.M.Jones, E.S.Paul, A.T.Semple, J.F.Sharpey-Schafer, J.Simpson, W.Satula, R.Wyss

Superdeformation in the Pb Nuclei and the Evolution of the Dynamic Moments of Inertia

NUCLEAR REACTIONS ¹⁸⁶W(¹⁸O, xn), E=113 MeV; measured Eγ, Iγ, γγ-coin. ^194,196,198Pb deduced superdeformed band features, dynamic moments of inertia. Comparison with cranked Woods-Saxon calculations. Enriched targets, hyperpure Ge detectors, BGO suppression shields.

doi: 10.1103/PhysRevC.50.1222
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1993PO17      Z.Phys. A347, 63 (1993)

I.Popescu, T.Badica, E.Dragulescu

Low-Lying Levels of the Odd ⁶⁹As Nucleus in the Particle Quadrupole-Phonon Coupling Model (PTQM)

NUCLEAR STRUCTURE ⁶⁸Ge; calculated levels. ⁶⁹As; calculated levels, transition Eγ, B(λ), T_1/2. Particle quadrupole-phonon coupling, truncated quadrupole-phonon models, SU(6) symmetry.

doi: 10.1007/BF01301278
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1993PO25      Roum.J.Phys. 38, 547 (1993)

I.Popescu, T.Badica, E.Dragulescu

Excited States of ⁶⁹Ge Nucleus in the Particle Quadrupole-Phonon Model (PTQM)

NUCLEAR STRUCTURE ⁶⁹Ge; calculated levels, B(λ). Particle quadrupole-phonon model.

1992DR04      Nucl.Phys. A548, 435 (1992)

E.Dragulescu, M.Ivascu, C.Petrache, D.Popescu, G.Semenescu, I.Gurgu, M.Ionescu-Bujor, A.Iordachescu, G.Pascovici, R.A.Meyer, V.Lopac, S.Brant, V.Paar, D.Vorkapic, D.Vretenar

Nuclear Structure and High-Spin States of ¹³⁷Pr

NUCLEAR REACTIONS ¹²⁶Te(¹⁴N, 3n), E=52-56 MeV; ¹²²Sn(¹⁹F, 4n), E=68-76 MeV; measured Eγ, Iγ, σ(E, Eγ, θ), γγ(t), (X-ray)γ(t), γ(t). ¹³⁷Pr deduced levels, J, π, δ(E2/M1), T_1/2. Enriched targets. Ge(Li) detectors.

NUCLEAR STRUCTURE ¹³⁷Pr; calculated levels. Interacting boson-fermion model.

doi: 10.1016/0375-9474(92)90694-F
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1989BU20      Phys.Lett. 229B, 321 (1989)

D.Bucurescu, G.Cata, D.Cutoiu, E.Dragulescu, M.Ivascu, N.V.Zamfir, A.Gizon, J.Gizon

Investigation of the Particle-Core Structure of Odd-Mass Nuclei in the N(p)N(n) Scheme

NUCLEAR STRUCTURE A ≈ 80-100; A ≈ 130; analyzed odd mass nuclei band structure; deduced particle-core structure. The N(p)N(n) scheme.

doi: 10.1016/0370-2693(89)90411-5
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1987DR12      Rev.Roum.Phys. 32, 485 (1987)

E.Dragulescu, M.Ivascu, M.Ionescu-Bujor, A.Iordachescu, C.Petrache, D.Popescu, G.Pascovici, G.Semenescu, M.Duma, I.Gurgu, F.Baciu, R.A.Meyer, V.Paar, S.Brant, D.Vorkapic, D.Vretenar, H.Ajazaj

High-Spin Spectroscopy of Pr Nuclei

NUCLEAR REACTIONS ^{118,119,120,122,124}Sn, ^121,123Sb, ^{125,126,128,130}Te, ^136,138Ce(¹⁹F, X), (¹⁶O, X), (¹⁴N, X), E not given; measured Eγ, Iγ, γ(θ), γγ(t), X-ray(γ)(t). ^{133,134,135,136,137,138,139}Pr deduced levels, J, π, band structure, γ-branching. In-beam γ-ray spectroscopy. Interacting boson model calculations.

1987DR13      Rev.Roum.Phys. 32, 743 (1987)

E.Dragulescu, M.Ivascu, D.Popescu, G.Semenescu, I.Gurgu, L.Marinescu, F.Baciu

Levels in ^134,135,136Ba Excited by the (⁹Be, xnγ) Reactions

NUCLEAR REACTIONS ^128,130Te(⁹Be, xn), E=30-37 MeV; measured σ(E, Eγ), γ-spectra. ^134,135,136Ba deduced levels, band characteristics.

1987DR14      Rev.Roum.Phys. 32, 947 (1987)

E.Dragulescu, M.Ivascu, C.Petrache, D.Popescu, G.Semenescu, M.Duma, I.Gurgu, F.Baciu, S.Brant, V.Paar, D.Vorkapic

Shape Transition in Pr Nuclei

NUCLEAR REACTIONS ^118,119,120Sn(¹⁹F, xn), E=72-76 MeV; ¹²⁵Te(¹⁴N, 4n), E=52-58 MeV; measured γγ(t), γ(X-ray)(t), σ(Eγ, E). ^133,135Pr deduced levels, J, π.

1984DR03      Nucl.Phys. A419, 148 (1984)

E.Dragulescu, M.Ivascu, R.Mihu, D.Popescu, G.Semenescu, V.Paar, D.Vretenar

Coulomb Excitation of Levels in ¹⁴³Nd and ¹⁴⁵Nd

NUCLEAR REACTIONS ^143,145Nd(¹⁶O, ¹⁶O'), E=35-45 MeV; ^143,145Nd(α, α'), E=9.7-12.2 MeV; measured Coulomb excitation, Eγ, Iγ, σ(Eγ, θγ). ^143,145Nd deduced levels, decay, J, π, δ, B(E2). Enriched targets.

doi: 10.1016/0375-9474(84)90290-2
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1984DR05      J.Phys.(London) G10, 1099 (1984)

E.Dragulescu, M.Ivascu, R.Mihu, D.Popescu, G.Semenescu, A.Velenik, V.Paar

Coulomb Excitation of Levels in ¹³⁵Ba and ¹³⁷Ba

NUCLEAR REACTIONS ^135,137Ba(α, α'), E=9.6-12.2 MeV; ^135,137Ba(¹⁶O, ¹⁶O'), E=35-45 MeV; measured Eγ, Iγ, γ(θ), σ(Eγ, E) following Coulomb excitation. ¹³⁵Ba(¹⁴N, ¹⁴N'), E=40 MeV; measured Eγ, Iγ, γ(θ) following Coulomb excitation. ^135,137Ba deduced levels, J, π, δ, γ-branching, B(E2). Enriched targets, Ge(Li) detectors, Compton suppression spectrometer.

doi: 10.1088/0305-4616/10/8/015
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1983DR10      Rev.Roum.Phys. 28, 13 (1983)

E.Dragulescu, M.Ivascu, R.Mihu, D.Popescu, G.Semenescu

Levels of ¹⁴¹Nd Populated by ¹⁴¹Pr(p, nγ)¹⁴¹Nd Reaction

NUCLEAR REACTIONS ¹⁴¹Pr(p, nγ), E=3.85-5.35 MeV; measured Eγ, Iγ, σ(Eγ), γγ-coin. ¹⁴¹Nd deduced levels, γ-branching, J, π. Unified model, intermediate coupling approach.

1976AV06      Nucl.Phys. A272, 243 (1976)

V.Avrigeanu, D.Bucurescu, G.Constantinescu, E.Dragulescu, M.Ivascu, D.Pantelica, R.Teodorescu

Spectroscopy of High Spin States in ⁵²Mn

NUCLEAR REACTIONS ³⁹K(¹⁶O, n2pγ), E=37-52 MeV; measured pγ-, γγ-coin, σ(E, Eγ), σ(Eγ, θ), recoil distance, DSA. ⁵²Mn levels deduced J, π, δ, γ-branching, T_1/2. Natural target.

doi: 10.1016/0375-9474(76)90329-8
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1976BU08      Rev.Roum.Phys. 21, 97 (1976)

D.Bucurescu, E.Dragulescu, M.Ivascu, M.Avrigeanu, G.Semenescu

The (α, p) Reaction on Odd Cu and Ga Isotopes

NUCLEAR REACTIONS ^63,65Cu(α, p), E=19.4 MeV; ^69,71Ga(α, p), E=20.0 MeV; measured σ(Ep, θ) to levels in ^66,68Zn, ^72,74Ge.

1975AV03      Rev.Roum.Phys. 20, 959 (1975)

V.Avrigeanu, D.Bucurescu, E.Dragulescu, M.Ivascu, D.Popescu

Excited States of the ³⁷Cl Nucleus

NUCLEAR REACTIONS ³⁷Cl(p, p'), E=15.0 MeV; ³⁴S(α, p), E=18.0 MeV; measured σ. ³⁷Cl deduced levels, J, π, L.

1974AV06      Rev.Roum.Phys. 19, 561 (1974)

V.Avrigeanu, D.Bucurescu, E.Dragulescu, M.Ivascu, D.Popescu

Study of ³⁷Cl Nucleus by Proton Scattering

NUCLEAR REACTIONS ³⁷Cl(p, p'), E=15 MeV; measured σ(Ep', θ). ³⁷Cl deduced levels.

1974IV01      Nucl.Phys. A218, 104 (1974)

M.Ivascu, D.Popescu, E.Dragulescu, V.Avrigeanu, C.Besliu, N.Martalogu

Lifetimes of Some Excited States in ⁶⁴Ni, ⁶⁶Zn and ⁶⁸Zn

NUCLEAR REACTIONS ⁶⁴Ni, ^66,68Zn(α, α'γ), ^63,65Cu(α, pγ), Eα=13 MeV; measured Doppler-shift attenuation. ⁶⁴Ni, ⁶⁶Zn, ⁶⁸Zn deduced levels, T_1/2. Enriched targets.

doi: 10.1016/0375-9474(74)90023-2
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1974IV03      Nucl.Phys. A225, 357 (1974)

M.Ivascu, D.Bucurescu, D.Popescu, V.Avrigeanu, E.Dragulescu, G.Semenescu, M.Avrigeanu

Spectroscopy of the ⁶⁹Ga and ⁷¹Ga Isotopes with the ^69,71Ga(α, α'γ)^69,71Ga and ^66,68Zn(α, pγ)^69,71Ga Reactions

NUCLEAR REACTIONS ^69,71Ga(α, α'γ), ^66,68Zn(α, pγ), E=13 MeV; measured Eγ, Doppler shift attenuation. ^69,71Ga levels deduced T_1/2, E(X). Enriched targets.

doi: 10.1016/0375-9474(74)90546-6
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1973BU13      Rev.Roum.Phys. 18, 359 (1973)

D.Bucurescu, E.Dragulescu, M.Duma, M.Ivascu, D.Popescu, G.Semenescu

Levels of ⁸³Br from the (α, p) Reaction

NUCLEAR REACTIONS ⁸⁰Se(α, p), E=20.5 MeV; measured σ(Ep, θ). ⁸³Br deduced levels, J, π, L.