NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = R.Engfer Found 36 matches. 2006BE30 Eur.Phys.J. C 47, 337 (2006) W.Bertl, R.Engfer, E.A.Hermes, G.Kurz, T.Kozlowski, J.Kuth, G.Otter, F.Rosenbaum, N.M.Ryskulov, A.van der Schaaf, P.Wintz, I.Zychor, and the SINDRUM II Collaboration A search for μ-e conversion in muonic gold NUCLEAR REACTIONS Au(μ-, e), E at rest; measured upper limit for μ → e conversion branching ratio. ATOMIC PHYSICS Au(μ-, e), E at rest; measured upper limit for μ → e conversion branching ratio.
doi: 10.1140/epjc/s2006-02582-x
1985KO09 Nucl.Phys. A436, 717 (1985) T.Kozlowski, W.Bertl, H.P.Povel, U.Sennhauser, H.K.Walter, A.Zglinski, R.Engfer, Ch.Grab, E.A.Hermes, H.P.Isaak, A.Van Der Schaaf, J.Van Der Pluym, W.H.A.Hesselink Energy Spectra and Asymmetries of Neutrons Emitted after Muon Capture NUCLEAR REACTIONS O, Si, Ca, Pb(μ-, xn), E at rest; measured E(n), asymmetry parameter a(n)(E), nn-coin.
doi: 10.1016/0375-9474(85)90556-1
1983HE17 Nucl.Phys. A407, 429 (1983) P.Heusi, H.P.Isaak, H.S.Pruys, R.Engfer, E.A.Hermes, T.Kozlowski, U.Sennhauser, H.K.Walter Coincident Emission of Neutrons and Charged Particles after π- Absorption in 6Li, 7Li, 12C, 59Co and 197Au NUCLEAR REACTIONS 6,7Li, 12C, 59Co, 197Au(π-, 2n), (π-, np), (π-, nd), (π-, nt), E at rest; measured (particle)(particle)-coin, σ(E1, E2, θ); deduced yields. Quasideuteron absorption model.
doi: 10.1016/0375-9474(83)90660-7
1983IS01 Nucl.Phys. A392, 368 (1983) H.P.Isaak, A.Zglinski, R.Engfer, R.Hartmann, E.A.Hermes, H.S.Pruys, F.W.Schleputz, T.Kozlowski, U.Sennhauser, H.K.Walter, K.Junker, N.C.Mukhopadhyay Inclusive Neutron Spectra from the Absorption of Stopped Negative Pions in Heavy Nuclei NUCLEAR REACTIONS 165Ho, 181Ta, 197Au, Tl, Pb, 209Bi, 238U(π-, xn), E at rest; measured σ(En); deduced multiplicities, nuclear temperatures.
doi: 10.1016/0375-9474(83)90133-1
1983IS02 Nucl.Phys. A392, 385 (1983) H.P.Isaak, H.S.Pruys, R.Engfer, E.A.Hermes, F.W.Schleputz, A.Zglinski, T.Kozlowski, U.Sennhauser, H.K.Walter Inclusive Neutron and Charged Particle Spectra from the Absorption of Stopped Negative Pions in Nickel Isotopes NUCLEAR REACTIONS 58,60,62,64Ni(π-, xn), (π-, xp), (π-, xd), (π-, xt), (π-, xα), E at rest; measured neutron, charged particle energy spectra; deduced particle multiplicities, nuclear temperatures.
doi: 10.1016/0375-9474(83)90134-3
1982IS10 Helv.Phys.Acta 55, 477 (1982) H.P.Isaak, P.Heusi, H.S.Pruys, R.Engfer, E.A.Hermes, T.Kozlowski, U.Sennhauser, H.K.Walter Single and Coincident Neutron Emission after the Absorption of Stopped Negative Pions in 6Li, 7Li, 12C, 59Co and 197Au NUCLEAR REACTIONS 7,6Li, 12C, 59Co, 197Au(π-, n), (π-, 2n), (π-, xn), E at rest; measured σ(En), nn-coin; deduced multiplicities, pion absorption mechanism.
1982SE08 Nucl.Phys. A386, 429 (1982) U.Sennhauser, H.-J.Pfeiffer, H.K.Walter, F.W.Schleputz, H.S.Pruys, R.Engfer, R.Hartmann, E.A.Hermes, P.Heusi, H.P.Isaak, W.H.A.Hesselink Spectroscopy of Single and Correlated Charged Particles Emitted following Bound Pion Absorption in 6Li and 7Li NUCLEAR REACTIONS 6,7Li(π-, pX), (π-, dX), (π-, tX), (π-, 2p), (π-, pd), (π-, pt), (π-, 2d), (π-, dt), (π-, 2t), E at rest; measured inclusive σ(Ep), σ(Ed), σ(Et), (particle)(particle)-coin, σ(θ1, θ2); deduced yields, missing mass spectra.
doi: 10.1016/0375-9474(82)90029-X
1982SE09 Nucl.Phys. A386, 447 (1982) U.Sennhauser, W.Dey, H.-J.Pfeiffer, H.K.Walter, H.S.Pruys, F.W.Schleputz, R.Engfer, R.Hartmann, E.A.Hermes, P.Heusi, H.P.Isaak, W.H.A.Hesselink Spectroscopy of Two Coincident Charged Particles Emitted following Bound Pion Absorption in 12C, 59Co and 197Au NUCLEAR REACTIONS 12C, 59Co, 197Au(π-, 2p), (π-, pd), (π-, pt), (π-, p3He), (π-, pα), (π-, 2d), (π-, dt), (π-, d3He), (π-, dα), (π-, 2t), (π-, t3He), (π-, tα), (π-, 2α), E at rest; measured (particle)(particle)-coin, σ(θ1, θ2); deduced yields, missing mass spectra. Pair absorption model, final state interactions.
doi: 10.1016/0375-9474(82)90030-6
1981HE18 Helv.Phys.Acta 53, 649 (1981) P.Heusi, R.Engfer, E.A.Hermes, H.P.Isaak, H.S.Pruys, F.W.Schleputz, A.Zglinski, T.Kozlowski, U.Sennhauser, H.K.Walter Coincident Emission of Neutrons and Charged Particles following Negative Pion Capture in 12C NUCLEAR REACTIONS 12C(π-, np), (π-, nd), (π-, nt), E at rest; measured np-, nd-, nt-coin; deduced neutron-proton, proton-proton pair absorption ratio.
1981PR02 Nucl.Phys. A352, 388 (1981) H.S.Pruys, R.Engfer, R.Hartmann, E.A.Hermes, H.P.Isaak, F.W.Schlepuetz, U.Sennhauser, W.Dey, K.Hess, H.-J.Pfeiffer, H.K.Walter, W.Hesselink Charged Particle Emission following the Absorption of Stopped π- in 12C, 59Co and 197Au NUCLEAR REACTIONS 12C, 59Co, 197Au(π-, p), (π-, d), (π-, t), (π-,3He), (π-, α), E at rest; measured σ(Ep), σ(Ed), σ(Et), σ(E(3He)), σ(Eα). Quasideuteron pion absorption model.
doi: 10.1016/0375-9474(81)90418-8
1981SE11 Phys.Lett. 103B, 409 (1981) U.Sennhauser, L.Felawka, T.Kozlowski, H.K.Walter, F.W.Schlepuetz, R.Engfer, E.A.Hermes, P.Heusi, H.P.Isaak, H.S.Pruys, A.Zglinski, W.H.A.Hesselink Observation of Particle Unstable 4H in Pion Absorption in 7Li NUCLEAR REACTIONS 7Li(π-, 2t), E at rest; measured σ(E1, E2); 4H deduced level, reduced width.
doi: 10.1016/0370-2693(81)90071-X
1979CH09 Nucl.Phys. A316, 290 (1979) D.Chultem, V.S.Evseev, V.M.Sidorov, V.A.Khalkin, R.Engfer, H.H.Muller, H.K.Walter Search for 4n in π- Double Charge Exchange Reactions with Heavy Nuclei NUCLEAR REACTIONS 208Pb(π-,4n), E=120 MeV; 208Pb(4n, X); measured σ(Eα) for 212Bi from 212Pb decay; deduced upper limit for processes.
doi: 10.1016/0375-9474(79)90038-1
1979PR02 Nucl.Phys. A316, 365 (1979) H.S.Pruys, R.Engfer, R.Hartmann, U.Sennhauser, H.-J.Pfeiffer, H.K.Walter, J.Morgenstern, A.Wyttenbach, E.Gadioli, E.Gadioli-Erba Absorption of Stopped π- in 59Co, 75As, 197Au and 209Bi Investigated by in-Beam and Activation γ-Ray Spectroscopy NUCLEAR REACTIONS 59Co, 75As, 197Au, 209Bi(π-, xnyp), E=0 MeV; measured Eγ, Iγ, E(X-ray), I(X-ray); deduced production σ, high spin states.
doi: 10.1016/0375-9474(79)90043-5
1978DE30 Helv.Phys.Acta 51, 87 (1978) W.Dey, H.J.Pfeiffer, U.Sennhauser, H.K.Walter, R.Engfer, R.Hartmann, E.A.Hermes, H.P.Isaak, H.S.Pruys, F.W.Schleputz Charged Particle Emission Following Negative Pion Absorption in Nuclei NUCLEAR REACTIONS 12C, 59Co, 197Au(π-, p), 12C, 59Co, 197Au(π-, d), 12C, 59Co, 197Au(π-, t), 12C, 59Co, 197Au(π-,3He), 12C, 59Co, 197Au(π-, α), 12C(π-,6Li), E=0; measured σ.
1978HA37 Nucl.Phys. A308, 345 (1978) R.Hartmann, H.P.Isaak, R.Engfer, E.A.Hermes, H.S.Pruys, W.Dey, H.J.Pfeiffer, U.Sennhauser, H.K.Walter, J.Morgenstern Spectroscopy of Single and Correlated Neutrons Following Pion Absorption in 12C, 59Co and 197Au NUCLEAR REACTIONS 12C, 59Co, 197Au(π-, xn), E at rest; measured neutron energy spectrum, n-n correlation; deduced neutron multiplicities, nuclear temperature.
doi: 10.1016/0375-9474(78)90556-0
1977LI20 Hyperfine Interactions 3, 381 (1977) R.Link, H.Backe, R.Engfer, E.Kankeleit, H.K.Walter Magnetic Hyperfile Anomaly in Muonic 193Ir NUCLEAR MOMENTS, Mesic-Atoms 193Ir; measured muonic hyperfine splitting; deduced hfs anomaly.
doi: 10.1007/BF01021570
1977PR03 Helv.Phys.Acta 50, 199 (1977) H.S.Pruys, R.Hartmann, R.Engfer, U.Sennhauser, W.Dey, H.-J. Pfeiffer, H.K.Walter, J.Morgenstern, A.Wyttenbach Absorption of Stopped π- in 75As and 197Au NUCLEAR REACTIONS 75As, 197Au(π-, X), E=0 MeV; measured prompt γ, X-ray spectra.
1976DE39 Helv.Phys.Acta 49, 778 (1976) W.Dey, H.P.Isaak, H.K.Walter, R.Engfer, H.Guyer, R.Hartmann, E.A.Hermes, H.Muller, H.S.Pruys, W.Reichart, J.Morgenstern Measurement of Neutrons and Charged Particles Following π- Absorption in Nuclei NUCLEAR REACTIONS 12C, 181Ta, 197Au(π-, p), (π-, d), (π-, t), (π-, n), (π-,3He), (π-, α), E=0 MeV; measured spectra.
1975FR09 Phys.Lett. 55B, 377 (1975) W.D.Fromm, D.Gansorig, T.Korgulski, H.-G.Ortlepp, S.M.Polikanov, B.M.Sabirov, U.Schmidt, R.Arlt, R.Engfer, H.Schneuwly Energy Shifts of Electronic X-Rays in Heavy Muonic Atoms ATOMIC PHYSICS, Mesic-Atoms Ta, Ir, Pb, Th, U(μ-, X-ray); measured energy shifts of K X-rays.
doi: 10.1016/0370-2693(75)90363-9
1975ZE04 Nucl.Phys. A254, 315 (1975) A.Zehnder, F.Boehm, W.Dey, R.Engfer, H.K.Walter, J.L.Vuilleumier Charge Parameters, Isotope Shifts, Quadrupole Moments, and Nuclear Excitation in Muonic 170-174,176Yb NUCLEAR REACTIONS 170,171,172,173,174,176Yb(μ-, X-ray); measured muonic X-rays, Eγ, γγ-coin. 170,171,172,173,174,176Yb deduced nuclear charge distribution, quadrupole moment, isotope shift, isomer shift. 172Yb deduced levels.
doi: 10.1016/0375-9474(75)90219-5
1974BA77 Nucl.Phys. A234, 469 (1974) H.Backe, R.Engfer, E.Kankeleit, R.Link, R.Michaelsen, C.Petitjean, L.Schellenberg, H.Schneuwly, W.U.Schroder, J.L.Vuilleumier, H.K.Walter, A.Zehnder Nuclear Excitation and Isomer Shifts in Muonic Atoms (I). Experiment and Evaluation ATOMIC PHYSICS, Mesic-Atoms 152Sm, 156,158,160Gd, 153Eu, 169Tm, 170Yb, 181Ta, 182,184,186W, 185,187Re, 188,190,192Os, 191,193Ir, 194,196Pt, 198,199,200,202Hg, 203,205Tl, 209Bi; measured Eγ, Iγ of muonic isotopes; deduced muonic isomer shifts.
doi: 10.1016/0375-9474(74)90576-4
1974DU02 Nucl.Phys. A219, 29 (1974) T.Dubler, L.Schellenberg, H.Schneuwly, R.Engfer, J.L.Vuilleumier, H.K.Walter, A.Zehnder, B.Fricke Nuclear Charge Radii from X-Ray Transitions in Muonic Atoms of Carbon, Nitrogen and Oxygen ATOMIC PHYSICS, Mesic-Atoms 12C, 14N, 16O, 103Rh(μ, 2nν), E approx 0, measured muonic X-rays, Eγ. 12C, 14N, 16O deduced nuclear charge radius. 101Ru deduced transitions.
doi: 10.1016/0375-9474(74)90080-3
1974EN08 Fiz.Elem.Chastits At.Yadra 5, 382 (1974); Sov.J.Particles Nucl. 5, 152 (1974) R.Engfer, H.-K.Walter, H.Schneuwly Study of the Properties of Atomic Nuclei with the Aid of Muonic Atoms NUCLEAR STRUCTURE, Mesic-Atoms 93Nb, 115In, 127I, 133Cs, 139La, 141Pr, 151Eu, 190,192Os, 199,200Hg, 203,205Tl, 209Bi; calculated hyperfine splitting constants. 150Nd, 152Sm, 154,156,158,160Gd, 166Er, 170Yb, 182,184,186W, 188,190,192Os, 194,196Pt, 198,199,200,202Hg, 153Eu, 169Tm, 181Ta, 185,187Re, 191,193Ir, 203,205Tl; calculated muonic excitation probabilities.
1974EN10 At.Data Nucl.Data Tables 14, 509 (1974) R.Engfer, H.Schneuwly, J.L.Vuilleumier, H.K.Walter, A.Zehnder Charge-Distribution Parameters, Isotope Shifts, Isomer Shifts, and Magnetic Hyperfine Constants from Muonic Atoms COMPILATION, Mesic-Atoms Z=2-83; compiled nuclear charge-distribution parameters, isotope, isomer shifts; magnetic hf constants from muonic atoms.
doi: 10.1016/S0092-640X(74)80003-3
1974SC12 Z.Phys. 268, 57 (1974) W.U.Schroder, U.Jahnke, K.H.Lindenberger, G.Roschert, R.Engfer, H.K.Walter Spectra of Neutrons from μ Capture in Thallium, Lead and Bismuth NUCLEAR REACTIONS Tl, Pb, Bi(μ, xn); measured σ(En, Eγ), deduced reaction mechanism.
1972BA53 Nucl.Phys. A189, 472 (1972) H.Backe, R.Engfer, U.Jahnke, E.Kankeleit, R.M.Pearce, C.Petitjean, L.Schellenberg, H.Schneuwly, W.U.Schroder, H.K.Walter, A.Zehnder Study of X-Rays and Nuclear γ-Rays in Muonic Thallium ATOMIC PHYSICS, Mesic-Atoms 203Tl, 205Tl; measured E(X-ray), I(X-ray), Eγ, Iγ; deduced μ-cascade, electron screening, excitation of first, higher nuclear levels, magnetic H.F. Anomalies, muonic isomer shift, E2/M1 mixing ratio, T1/2 of nuclear 3/2+ level in muonic 205Tl, magnetic, electric nuclear polarization, isotope shift, nuclear size parameters, isotope effect of μ-capture rates. NUCLEAR REACTIONS 203,205Tl(μ-, xnγ); measured Eγ, Iγ; deduced total muon capture rate. 198, 199, 200, 202, 204hg deduced transitions.
doi: 10.1016/0375-9474(72)90309-0
1972LI33 Phys.Lett. 42B, 57 (1972) R.Link, L.Schellenberg, H.Backe, R.Engfer, E.Kankeleit, R.Michaelsen, H.Schneuwly, W.U.Schroder, J.L.Vuilleumier, H.K.Walter, A.Zehnder Magnetic Hyperfine Interaction of the 2+ Rotational States in Muonic 190,192Os NUCLEAR REACTIONS Os(μ-, Xγ), E approx 0; measured I(X-ray), Iγ. 190,192Os nuclear transitions deduced magnetic hfs splitting.
doi: 10.1016/0370-2693(72)90715-0
1972SC37 Nucl.Phys. A196, 452 (1972) H.Schneuwly, L.Schellenberg, H.Backe, R.Engfer, U.Jahnke, E.Kankeleit, K.H.Lindenberger, R.M.Pearce, C.Petitjean, W.U.Schroder, H.K.Walter, A.Zehnder Observation of Electric Quadrupole X-Ray Transitions in Muonic Thallium, Lead and Bismuth ATOMIC PHYSICS, Mesic-Atoms Tl, Pb, Bi; measured μ-mesic E(X-ray), I(X-ray); deduced E2 transitions, μ-cascade, radiationless transitions, population ratios.
doi: 10.1016/0375-9474(72)90788-9
1972WA02 Phys.Lett. 38B, 64 (1972) H.K.Walter, H.Backe, R.Engfer, E.Kankeleit, C.Petitjean, H.Schneuwly, W.U.Schroder Muonic Isomer Shifts in 153Eu. A Re-Evaluation of Mossbauer Isomer Shifts in Rare Earths ATOMIC PHYSICS, Mesic-Atoms 153Eu; measured Eγ; deduced isomer shift.
doi: 10.1016/0370-2693(72)90739-3
1972WA17 Phys.Lett. 40B, 197 (1972) H.K.Walter, J.H.Vuilleumier, H.Backe, F.Boehm, R.Engfer, H.von Gunten, R.Link, R.Michaelsen, C.Petitjean, L.Schellenberg, H.Schneuwly, W.U.Schroder, A.Zehnder Test of Quantum-Electrodynamical Corrections in Muonic Atoms ATOMIC PHYSICS, Mesic-Atoms Hg, 203Tl; measured μ-mesic E(X-ray), I(X-ray); tested QED corrections.
doi: 10.1016/0370-2693(72)90408-X
1971LI29 Phys.Lett. 37B, 50 (1971) R.Link, H.Backe, R.Engfer, L.Fluri, R.Michaelsen, C.Petitjean, H.Schneuwly, H.K.Walter Magnetic Hyperfine Splitting of the 2s1/2-2p1/2 Transition in Muonic 115In ATOMIC PHYSICS, Mesic-Atoms 115In; measured μ-mesic E(X-ray), I(X-ray), Eγ, Iγ; deduced a. NUCLEAR MOMENTS 115In μ-mesic atom; measured a.
doi: 10.1016/0370-2693(71)90567-3
1971PE14 Nucl.Phys. A178, 193 (1971) C.Petitjean, H.Backe, R.Engfer, U.Jahnke, K.H.Lindenberger, H.Schneuwly, W.U.Schroder, H.K.Walter Muon Capture in 151Eu and 153Eu NUCLEAR REACTIONS 151Eu, 153Eu(μ-, νxnγ) ; measured Eγ, Iγ, tauμ; deduced neutron multiplicity, isotope effect in μ-capture rates. 147,148,149,150,151,152,153Sm deduced transitions.
doi: 10.1016/0375-9474(71)90197-7
1970BA74 Proc.Int.Conf.High Energy Phys.Nucl.Struct., 3rd, Columbia University, New York (1969), S.Devons, Ed., Plenum Press, New York, p.192 (1970) H.Backe, R.Engfer, E.Kankeleit, W.U.Schroder, H.K.Walter, K.Wien Measurements of Excitation Probabilities and Isomer Shifts of Nuclear Levels in μ-Atoms NUCLEAR REACTIONS 182,184,186W, 188,190,192Os, 191,193Ir, 203,205Tl, 169Tm, 185,187Re, 194,196Pt(μ-, γ); measured excitation probability, isomer shift.
1968BA36 Phys.Letters 27B, 425 (1968) R.Baader, H.Backe, R.Engfer, K.Hesse, E.Kankeleit, U.Schroder, H.K.Walter, K.Wien Muonic Isomer Shift Measurements in Sm, W and Os Isotopes and Their Interpretation in Terms of Changes in Nuclear Charge Distribution ATOMIC PHYSICS, Mesic-Atoms Sm, W, Os(μ-, γ), E=0; measured Eγ. 152Sm, 182,184,186W, 188,190,192Os levels deduced muonic isomer shift.
doi: 10.1016/0370-2693(68)90226-8
1968BA37 Phys.Letters 27B, 428 (1968) R.Baader, H.Backe, R.Engfer, E.Kankeleit, W.U.Schroder, H.Walter, K.Wien Measurement of the Magnetic Hyperfine Splitting of Nuclear γ Rays in Muonic Thallium ATOMIC PHYSICS, Mesic-Atoms Tl(μ-, γ), E=0; measured Eγ. 203,205Tl deduced ground-state muonic hfs. Natural target.
doi: 10.1016/0370-2693(68)90227-X
1968EN02 Z.Physik 216, 274 (1968) Shell Model Analysis of the Magnetic Hyperfine Splitting in Muonic Thallium
doi: 10.1007/BF01392967
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