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NSR database version of April 24, 2024.

Search: Author = A.Zehnder

Found 23 matches.

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1982RO13      Helv.Phys.Acta 55, 74 (1982)

L.Ph.Roesch, V.L.Telegdi, P.Truttmann, A.Zehnder, L.Grenacs, L.Palffy

Measurement of the Average and Longitudinal Recoil Polarizations in the Reaction 12C(μ-, ν)12B(g.s.): Pseudoscalar coupling and neutrino helicity

NUCLEAR REACTIONS 12C(polarized μ-, ν), E at rest; measured recoil average, longitudinal polarization; deduced pseudoscalar coupling constant, muon neutrino helicity. Recoil implantation technique.


1981RO05      Phys.Rev.Lett. 46, 1507 (1981)

L.Ph.Roesch, V.L.Telegdi, P.Truttmann, A.Zehnder, L.Grenacs, L.Palffy

Measurement of the Average and Longitudinal Recoil Polarizations in the Reaction 12C(μ-, ν)12B(g.s.): Magnitude of the induced pseudoscalar coupling

NUCLEAR REACTIONS 12C(μ-, ν), E at rest; measured recoil average, longitudinal polarization; deduced quantitative axial vector current partial conservation estimate. Selective recoil implantation.

doi: 10.1103/PhysRevLett.46.1507
Citations: PlumX Metrics


1981RO15      Phys.Lett. 107B, 31 (1981)

L.Ph.Roesch, N.Schlumpf, D.Taqqu, V.L.Telegdi, P.Truttmann, A.Zehnder

Measurement of the Capture Rates to the Excited States in 12C(μ-, ν)12B* and a Novel Technique to Deduce the Alignment of 12B*(1-)

NUCLEAR REACTIONS 12C(μ-, ν), E at rest; measured capture ratios. 12B levels deduced alignment, recoil polarization correction factors. Doppler shape analysis, angular correlation techniques.

doi: 10.1016/0370-2693(81)91140-0
Citations: PlumX Metrics


1979DE29      Nucl.Phys. A326, 418 (1979)

W.Dey, P.Ebersold, H.J.Leisi, F.Scheck, H.K.Walter, A.Zehnder

Nuclear Spectroscopic Ground-State Quadrupole Moments from Muonic Atoms: The Quadrupole Moment of 175Lu

NUCLEAR MOMENTS 175Lu; measured muonic X-rays; deduced quadrupole, hexa-decapole moment, Stenheimer factor. Rigid rotor model.

doi: 10.1016/0375-9474(79)90401-9
Citations: PlumX Metrics


1979HA08      Nucl.Phys. A314, 361 (1979)

A.A.Hahn, J.P.Miller, R.J.Powers, A.Zehnder, A.M.Rushton, R.E.Welsh, A.R.Kunselman, P.Roberson, H.K.Walter

An Experimental Study of Muonic X-Ray Transitions in Mercury Isotopes

NUCLEAR MOMENTS 198,199,200,201,202,204Hg; measured muonic X-rays, isotope shift; deduced nuclear charge distribution. 198,200Hg deduced quadrupole moment. 199,201Hg deduced quadrupole moment, B(E2).

doi: 10.1016/0375-9474(79)90604-3
Citations: PlumX Metrics


1979TR05      Phys.Lett. 83B, 48 (1979)

P.Truttmann, H.Brandle, L.P.Roesch, V.L.Telegdi, A.Zehnder, L.Grenacs

Qualitative Measurement of the Longitudinal Recoil Polarization in the Reaction 12C(μ-, ν)12B (g.s.)

NUCLEAR REACTIONS 12C(μ-, ν), E=at rest; measured longitudinal polarization of 12B; deduced neutrino polarization.

doi: 10.1016/0370-2693(79)90885-2
Citations: PlumX Metrics


1978BR01      Phys.Rev.Lett. 40, 306 (1978)

H.Brandle, L.Grenacs, J.Lang, L.Ph.Roesch, V.L.Telegdi, P.Truttmann, A.Weiss, A.Zehnder

Measurement of the Correlation between Alignment and Electron Momentum in 12B → 12C(g.s) Decay by a Novel Technique: Another Search for Second-Class Currents

RADIOACTIVITY 12B; measured β(θ, H, t); deduced gradient coupling, recoil term parameter α. Oriented nuclei.

doi: 10.1103/PhysRevLett.40.306
Citations: PlumX Metrics


1978BR18      Phys.Rev.Lett. 41, 299 (1978)

H.Brandle, G.Miklos, L.P.Roesch, V.L.Telegdi, P.Truttmann, A.Zehnder, L.Grenacs, P.Lebrun, J.Lehmann

Measurement of the Alignment-Positron-Momentum Correlation in 12N → 12C(g.s.) By the Spontaneous-Level-Mixing Technique: Improved Evidence Against a Second-Class Axial Current

RADIOACTIVITY 12N; measured alignment-positron-momentum correlation using spontaneous level mixing technique; deduced evidence against second-class axial current.

doi: 10.1103/PhysRevLett.41.299
Citations: PlumX Metrics


1978VU01      Nucl.Phys. A294, 273 (1978)

J.-L.Vuilleumier, F.Boehm, A.A.Hahn, J.P.Miller, R.J.Powers, K.-C.Wang, A.Zehnder, A.R.Kunselman

Nuclear Charge Parameters and Quadrupole Moment in 105Pd from Muonic X-Rays

NUCLEAR MOMENTS, Mesic-Atoms 105Pd; measured muonic transitions, hfs; deduced quadrupole moment, nuclear charge distribution.

doi: 10.1016/0375-9474(78)90217-8
Citations: PlumX Metrics


1977KU08      Phys.Rev. C15, 1801 (1977)

A.R.Kunselman, P.Roberson, R.J.Powers, F.Boehm, J.P.Miller, A.Zehnder, J.Jarmer

Pionic 4f → 3d Transitions in 148Nd and 150Nd and the Neutron Isotope Shift

NUCLEAR REACTIONS 148,150Nd(π-, X-ray); measured pionic X-rays. 148,150Nd deduced isotope shift.

doi: 10.1103/PhysRevC.15.1801
Citations: PlumX Metrics


1977PO02      Nucl.Phys. A278, 477 (1977)

R.J.Powers, F.Boehm, A.Zehnder, A.R.Kunselman, P.Roberson

A Precision Determination of the Radial Charge Parameters and the Quadrupole Moment of 181Ta Using Muonic X-Rays

NUCLEAR MOMENTS, Mesic-Atoms 181Ta; measured muonic transitions, hfs; deduced quadrupole moment, β2, β4, hexadecapole moment.

doi: 10.1016/0375-9474(77)90093-8
Citations: PlumX Metrics


1977PO15      Nucl.Phys. A292, 487 (1977); Erratum Nucl.Phys. A312, 524 (1978)

R.J.Powers, F.Boehm, A.A.Hahn, J.P.Miller, J.-L.Vuilleumier, K.-C.Wang, A.Zehnder, A.R.Kunselman, P.Roberson

An Experimental Study of the E0, E2 and E4 Charge Moments of 161Dy Using Muonic Atoms

ATOMIC PHYSICS, Mesic-Atoms 161Dy; measured E(X-ray), I(X-ray). 161Dy deduced Q, hexadecapole moment, nuclear charge distribution.

NUCLEAR MOMENTS 161Dy; measured muonic K X-ray, L X-ray, M X-ray; deduced Q, hexadecapole moment, nuclear charge distribution.

doi: 10.1016/0375-9474(77)90632-7
Citations: PlumX Metrics


1976CA26      Phys.Rev.Lett. 37, 1380 (1976)

A.L.Carter, M.S.Dixit, M.K.Sundaresan, J.S.Wadden, P.J.S.Watson, C.K.Hargrove, E.P.Hincks, R.J.McKee, H.Mes, H.L.Anderson, A.Zehnder

New Determination of the π- Mass from Pionic-Atom Transition Energies

doi: 10.1103/PhysRevLett.37.1380
Citations: PlumX Metrics


1976PO05      Nucl.Phys. A262, 493 (1976)

R.J.Powers, F.Boehm, P.Vogel, A.Zehnder, T.King, A.R.Kunselman, P.Roberson, P.Martin, G.H.Miller, R.E.Welsh, D.A.Jenkins

Muonic X-Ray Study of the Charge Distribution of 165Ho

ATOMIC PHYSICS 165Ho(μ-, X-ray); measured E(X-ray), I(X-ray). 165Ho deduced quadrupole moment, hexadecapole moment, nuclear charge distribution.

NUCLEAR MOMENTS 165Ho; measured muonic X-rays, quadrupole moment, hexadecapole moment, nuclear charge distribution.

doi: 10.1016/0375-9474(76)90511-X
Citations: PlumX Metrics


1975PO03      Phys.Rev.Lett. 34, 492 (1975)

R.J.Powers, F.Boehm, P.Vogel, A.Zehnder, T.King, A.R.Kunselman, P.Roberson, P.Martin, G.H.Miller, R.E.Welsh, D.A.Jenkins

Precise Determination of E2 and E4 Moments in 165Ho from Muonic X Rays

NUCLEAR MOMENTS 165Ho; analyzed hfs data; deduced quadrupole moment.

doi: 10.1103/PhysRevLett.34.492
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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