NSR Query Results


Output year order : Descending
Format : Normal

NSR database version of April 11, 2024.

Search: Author = H.J.Leisi

Found 60 matches.

Back to query form



2001SC40      Eur.Phys.J. C 21, 473 (2001)

H.-Ch.Schroder, A.Badertscher, P.F.A.Goudsmit, M.Janousch, H.J.Leisi, E.Matsinos, D.Sigg, Z.G.Zhao, D.Chatellard, J.-P.Egger, K.Gabathuler, P.Hauser, L.M.Simons, A.J.R.El Hassani

The Pion-Nucleon Scattering Lengths from Pionic Hydrogen and Deuterium

ATOMIC PHYSICS, Mesic-atoms 1,2H(π-, X), E at rest; measured X-ray spectra; deduced strong-interaction energy level shift, decay widths, pion-nucleon scattering length.

NUCLEAR REACTIONS 1,2H(π-, X), E at rest; measured X-ray spectra; deduced strong-interaction energy level shift, decay widths, pion-nucleon scattering length.


1999SC40      Phys.Lett. 469B, 25 (1999)

H.-Ch.Schroder, A.Badertscher, P.F.A.Goudsmit, M.Janousch, H.J.Leisi, E.Matsinos, D.Sigg, Z.G.Zhao, D.Chatellard, J.-P.Egger, E.Jeannet, K.Gabathuler, P.Hauser, L.M.Simons, A.J.R.El Hassani

Determination of the πN Scattering Lengths from Pionic Hydrogen

ATOMIC PHYSICS, Mesic-atoms 1H; measured X-ray spectra; deduced pionic hydrogen level energy, width, πN scattering lengths.

doi: 10.1016/S0370-2693(99)01237-X
Citations: PlumX Metrics


1997CH44      Nucl.Phys. A625, 855 (1997)

D.Chatellard, J.-P.Egger, E.Jeannet, A.Badertscher, M.Bogdan, P.F.A.Goudsmit, M.Janousch, H.J.Leisi, E.Matsinos, H.-Ch.Schroder, D.Sigg, Z.G.Zhao, E.C.Aschenauer, K.Gabathuler, P.Hauser, L.M.Simons, A.J.R.El Hassani

X-Ray Spectroscopy of the Pionic Deuterium Atom

NUCLEAR REACTIONS 1,2H(π-, X), E at 85 MeV/c; measured X-ray spectra; deduced 1S-level strong interaction shift, width, pionic deuterium S-wave scattering length.

ATOMIC PHYSICS, Mesic-Atoms 1,2H(π-, X), E at 85 MeV/c; measured X-ray spectra; deduced 1S-level strong interaction shift, width, pionic deuterium S-wave scattering length.

doi: 10.1016/S0375-9474(97)00466-1
Citations: PlumX Metrics


1997JA13      Phys.Lett. 414B, 237 (1997)

M.Janousch, A.Badertscher, P.F.A.Goudsmit, H.J.Leisi, E.Matsinos, P.Weber, Z.G.Zhao

Destructive Interference of s and p Waves in 180° π-p Elastic Scattering

NUCLEAR REACTIONS 1H(π-, π-), E=43.6-72 MeV; measured σ(θ); deduced destructive interference.

doi: 10.1016/S0370-2693(97)01169-6
Citations: PlumX Metrics


1996SI21      Nucl.Phys. A609, 269 (1996); Erratum Nucl.Phys. A617, 526 (1997)

D.Sigg, A.Badertscher, M.Bogdan, P.F.A.Goudsmit, H.J.Leisi, H.-Ch.Schroder, Z.G.Zhao, D.Chatellard, J.-P.Egger, E.Jeannet, E.C.Aschenauer, K.Gabathuler, L.M.Simons, A.J.R.El Hassani

The Strong Interaction Shift and Width of the Ground State of Pionic Hydrogen

ATOMIC PHYSICS, Mesic-Atoms 1H(π-, X), E at rest; measured X-ray spectra; deduced strong interaction shift, width.

doi: 10.1016/S0375-9474(96)00280-1
Citations: PlumX Metrics


1996SI22      Nucl.Phys. A609, 310 (1996)

D.Sigg, A.Badertscher, P.F.A.Goudsmit, H.J.Leisi, G.C.Oades

Electromagnetic Corrections to the s-Wave Scattering Lengths in Pionic Hydrogen

NUCLEAR REACTIONS 1H(π-, π-), E=low; calculated scattering length corrections; 1H(π-, π0), E=low; calculated σ(E), scattering length corrections. Relativistic two-channel approach.

doi: 10.1016/S0375-9474(96)00238-2
Citations: PlumX Metrics


1995BA19      Nucl.Phys. A585, 49c (1995)

A.Badertscher, E.C.Aschenauer, M.Bogdan, D.Chatellard, J.-P.Egger, P.F.A.Goudsmit, K.Gabathuler, P.Hauser, A.J.R.El Hassani, E.Jeannet, M.Janousch, H.J.Leisi, E.Matsinos, H.-Ch.Schroder, D.Sigg, L.M.Simons, Z.G.Zhao

Measurement of the Strong Interaction Shift and Width of the 1S State in Pionic Hydrogen

ATOMIC PHYSICS, Mesic-Atoms 1H(π-, X), E at rest; measured X-ray spectra; deduced 3P-1S transition energy, line shape.

NUCLEAR REACTIONS 1H(π-, X), E at rest; measured X-ray spectra; deduced 3P-1S transition energy, line shape.

doi: 10.1016/0375-9474(94)00542-U
Citations: PlumX Metrics


1995CH50      Phys.Rev.Lett. 74, 4157 (1995)

D.Chatellard, J.-P.Egger, E.Jeannet, A.Badertscher, M.Bogdan, P.F.A.Goudsmit, H.J.Leisi, E.Matsinos, H.-Ch.Schroder, D.Sigg, Z.G.Zhao, E.C.Aschenauer, K.Gabathuler, P.Hauser, L.M.Simons, A.J.R.El Hassani

Determination of the S-Wave Scattering Length in Pionic Deuterium with a High Resolution Crystal Spectrometer

NUCLEAR REACTIONS 2H(π-, X), E at 85 MeV/c; measured X-ray spectra; deduced 1S level strong interaction shift, total decay width.

ATOMIC PHYSICS, Mesic-Atoms 2H(π-, X), E at 85 MeV/c; measured X-ray spectra; deduced 1S level strong interaction shift, total decay width.

doi: 10.1103/PhysRevLett.74.4157
Citations: PlumX Metrics


1995EL04      Z.Phys. A351, 113 (1995)

A.J.R.El-Hassani, W.Beer, J.-F.Gilot, P.F.A.Goudsmit, H.J.Leisi, S.Thomann, W.Volken, E.C.Aschenauer, K.Gabathuler, L.M.Simons, E.Bovet, J.P.Egger, G.Fiorucci, V.E.Markushin

Measurement of Absolute Yields of Lyman Transitions in Pionic Hydrogen and Deuterium as a Function of Pressure

NUCLEAR REACTIONS 1,2H(π-, X), E at 85 MeV/c; measured pionic E X-ray, I X-ray, π(X-ray)-coin; deduced transitions absolute K X-ray yields.

ATOMIC PHYSICS, Mesic-Atoms 1,2H(π-, X), E at 85 MeV/c; measured pionic E X-ray, I X-ray, π(X-ray)-coin; deduced transitions absolute K X-ray yields.


1995SI25      Phys.Rev.Lett. 75, 3245 (1995)

D.Sigg, A.Badertscher, M.Bogdan, P.F.A.Goudsmit, H.J.Leisi, E.Matsinos, H.-Ch.Schroder, Z.G.Zhao, D.Chatellard, J.-P.Egger, E.Jeannet, E.C.Aschenauer, K.Gabathuler, L.M.Simons, A.J.R.El Hassani

Strong Interaction Shift and Width of the 1s Level in Pionic Hydrogen

NUCLEAR REACTIONS 1H(π-, X), E at rest; measured pionic X-rays; deduced strong interaction shift, width.

ATOMIC PHYSICS, Mesic-Atoms 1H(π-, X), E at rest; measured pionic X-rays; deduced strong interaction shift, width.

doi: 10.1103/PhysRevLett.75.3245
Citations: PlumX Metrics


1994GO15      Nucl.Phys. A575, 673 (1994)

P.F.A.Goudsmit, H.J.Leisi, E.Matsinos, B.L.Birbrair, A.B.Gridnev

The Extended Tree-Level Model for the Pion-Nucleon Interaction

doi: 10.1016/0375-9474(94)90162-7
Citations: PlumX Metrics


1994GO45      Helv.Phys.Acta 67, 369 (1994)

P.F.A.Goudsmit, H.J.Leisi, E.Matsinos

The Low-Energy Pion-Nucleon Interaction

NUCLEAR REACTIONS 1H(π+, π+), E ≈ 20-100 MeV; 1H(π-, π-), E=29.4-97.9 MeV; analyzed σ(θ), σ(E), asymmetry data; 1H(π-, π0), E ≈ 20-100 MeV; analyzed σ(θ), σ(E) data. Low-energy π-nucleon interaction model.


1994JE10      Phys.Lett. 335B, 326 (1994)

B.Jeckelmann, P.F.A.Goudsmit, H.J.Leisi

The Mass of the Negative Pion

NUCLEAR REACTIONS 24Mg(π-, X), E at rest; measured K X-ray transition probabilities; deduced m(π), m(ν(μ)).

ATOMIC PHYSICS, Mesic-Atoms 24Mg(π-, X), E at rest; measured K X-ray transition probabilities; deduced m(π), m(ν(μ)).

doi: 10.1016/0370-2693(94)90358-1
Citations: PlumX Metrics


1993BA75      Nucl.Instrum.Methods Phys.Res. A335, 470 (1993)

A.Badertscher, M.Bogdan, P.F.A.Goudsmit, L.Knecht, H.J.Leisi, H.Ch.Schroder, D.Sigg, Z.G.Zhao, D.Chatellard, J.-P.Egger, E.Jeannet, E.C.Aschenauer, K.Gabathuler, L.M.Simons, A.J.R.El-Hassani

A High Resolution Reflecting Crystal Spectrometer to Measure 3 keV Pionic Hydrogen and Deuterium X-Rays

NUCLEAR REACTIONS 9Be(π-, X), E at rest; measured pionic X-ray spectra. High resolution crystal spectrometer.

ATOMIC PHYSICS, Mesic-Atoms 9Be(π-, X), E at rest; measured pionic X-ray spectra. High resolution crystal spectrometer.

doi: 10.1016/0168-9002(93)91232-C
Citations: PlumX Metrics


1992GO30      Helv.Phys.Acta 65, 878 (1992)

P.F.A.Goudsmit, H.J.Leisi, E.Matsinos

A New Pion-Nucleon Interaction Model

NUCLEAR REACTIONS 1n, 1H(π, π), E ≤ 150 MeV; analyzed phase shifts data; deduced model parameters energy dependence. New pion-nucleon interaction model.


1991BE29      Phys.Lett. 261B, 16 (1991)

W.Beer, M.Bogdan, P.F.A.Goudsmit, H.J.Leisi, A.J.R.El-Hassani, D.Sigg, St.Thomann, W.Volken, D.Bovet, E.Bovet, D.Chatellard, J.-P.Egger, G.Fiorucci, K.Gabathuler, L.M.Simons

Determination of the Strong Interaction Shift in Pionic Hydrogen with a High Resolution Crystal Spectrometer System

NUCLEAR REACTIONS 1H(π-, X), E at 85 MeV/c; measured pionic X-ray transition energy; deduced strong interaction shift. High resolution crystal spectrometer.

ATOMIC PHYSICS, Mesic-Atoms 1H(π-, X), E at 85 MeV/c; measured pionic X-ray transition energy; deduced strong interaction shift. High resolution crystal spectrometer.

doi: 10.1016/0370-2693(91)91317-O
Citations: PlumX Metrics


1991GO21      Phys.Lett. 271B, 290 (1991)

P.F.A.Goudsmit, H.J.Leisi, E.Matsinos

Pionic Atoms, the Relativistic Mean-Field Theory and the Pion-Nucleon Scattering Lengths

NUCLEAR STRUCTURE 6Li, 20N, 12C, 40Ca; analyzed pionic level shift data; deduced pseudoscalar πNN mixing parameter. Relativistic mean field theory.

ATOMIC PHYSICS, Mesic-Atoms 6Li, 20N, 12C, 40Ca; analyzed pionic level shift data; deduced pseudoscalar πNN mixing parameter. Relativistic mean field theory.

doi: 10.1016/0370-2693(91)90089-9
Citations: PlumX Metrics


1988BO12      Helv.Phys.Acta 61, 219 (1988)

D.Bovet, E.Bovet, J.P.Egger, G.Fiorucci, J.L.Vuilleumier, W.Beer, J.F.Gilot, P.F.A.Goudsmit, H.J.Leisi, A.Rusi el Hassani, K.Gabathuler, L.Simons

Mesure du Deplacement et de l'Elargissement d'Interaction Forte du Niveau 1S de l'Hydrogene Pionique

ATOMIC PHYSICS, Mesic-Atoms 1H(π, X), E not given; measured X-ray spectra. High resolution, low energy spectrometer.


1988EL06      Helv.Phys.Acta 61, 1130 (1988)

A.J.R.El-Hassani, J.-F.Gilot, P.F.A.Goudsmit, H.J.Leisi, St.Thomann

On the s-Wave Repulsion of the Pion-Nuclear Interaction

ATOMIC PHYSICS, Mesic-Atoms 12C, 16O, 20Ne; calculated 1s level shifts; deduced model validities.


1987GI01      Phys.Lett. 186B, 9 (1987)

K.L.Giovanetti, G.de Chambrier, P.F.A.Goudsmit, H.J.Leisi, B.Jeckelmann, Th.Karapiperis

The Isoscalar Pion-Nucleus Interaction from Pionic Atoms

ATOMIC PHYSICS, Mesic-Atoms 4He, 12C, 16O, 20Ne; analyzed pionic atom data; deduced improved optical potential.

doi: 10.1016/0370-2693(87)90503-X
Citations: PlumX Metrics


1986BE04      Nucl.Phys. A451, 679 (1986)

I.Beltrami, B.Aas, W.Beer, G.De Chambrier, P.F.A.Goudsmit, Th.v.Ledebur, H.J.Leisi, W.Ruckstuhl, W.W.Sapp, G.Strassner, A.Vacchi, U.Kiebele, J.-A.Pinston, R.Weber

New Precision Measurements of the Muonic 3d(5/2)-2p(3/2) X-Ray Transition in 24Mg and 28Si: Vacuum polarisation test and search for muon-hadron interactions beyond QED

ATOMIC PHYSICS, Mesic-Atoms 24Mg, 28Si; measured muonic X-rays, transition wavelengths; deduced muon-nucleon interaction limits, vacuum polarisation effect, muon mass.

doi: 10.1016/0375-9474(86)90299-X
Citations: PlumX Metrics


1986GO04      Helv.Phys.Acta 59, 186 (1986)

P.F.A.Goudsmit, G.de Chambrier, K.l.Giovanetti, B.Jeckelmann, H.J.Leisi, A.Ruetschi

Anomaly in Pion Absorption

ATOMIC PHYSICS, Mesic-Atoms Z=2-14; analyzed pionic atom data. Improved optical model.


1986JE02      Nucl.Phys. A457, 709 (1986)

B.Jeckelmann, W.Beer, G.De Chambrier, O.Elsenhans, K.L.Giovanetti, P.F.A.Goudsmit, H.J.Leisi, T.Nakada, O.Piller, A.Ruetschi, W.Schwitz

New Precision Determination of the π- Mass from Pionic X-Rays

ATOMIC PHYSICS, Mesic-Atoms 24Mg; measured pionic transition wavelength, X-rays; deduced π- mass, limit on muon-neutrino mass, electronic K-shell population.

doi: 10.1016/0375-9474(86)90476-8
Citations: PlumX Metrics


1986JE03      Helv.Phys.Acta 59, 1184 (1986)

B.Jeckelmann, W.Beer, G.de Chambrier, O.Elsenhans, K.L.Giovanetti, P.F.A.Goudsmit, H.J.Leisi, T.Nakada, O.Piller, W.Schwitz

Neue Prazisionsmessung der π--Masse

ATOMIC PHYSICS, Mesic-Atoms 24Mg(π-, X), E not given; measured pionic X-rays; deduced pion mass.


1985BE53      Nucl.Instrum.Methods 238, 365 (1985)

W.Beer, K.Bos, G.De Chambrier, K.L.Giovanetti, P.F.A.Goudsmit, B.V.Grigoryev, B.Jeckelmann, L.Knecht, L.N.Kondurova, J.Langhans, H.J.Leisi, P.M.Levchenko, V.I.Marushenko, A.F.Mezentsev, H.Obermeier, A.A.Petrunin, U.Rohrer, A.G.Sergeev, S.G.Skornjakov, A.I.Smirnov, E.Steiner, G.Strassner, V.M.Suvorov, A.Vacchi

Crystal Spectrometer for Measurements of Pionic X-Rays

NUCLEAR REACTIONS 24,25,26Mg, Si, 30Si, O, C(π, X), E at rest; measured pionic X-rays. Bent crystal spectrometer, high precision laser interferometer system.

ATOMIC PHYSICS, Mesic-Atoms Mg, Si, C, O; measured pionic X-rays; deduced wave length ratios. Bent crystal spectrometer, high precision laser interferometer system.

doi: 10.1016/0168-9002(85)90474-7
Citations: PlumX Metrics


1985DE34      Nucl.Phys. A442, 637 (1985)

G.de Chambrier, W.Beer, F.W.N.de Boer, K.Bos, A.I.Egorov, M.Eckhause, K.L.Giovanetti, P.F.A.Goudsmit, B.Jeckelmann, K.E.Kiryanov, L.N.Kondurova, L.Lapina, H.J.Leisi, V.I.Marushenko, A.F.Mezentsev, A.A.Petrunin, A.G.Sergeev, A.I.Smirnov, G.Strassner, V.M.Suvorov, A.Vacchi, D.Wieser

Precision Measurement of the Wavelengths and Natural Line of 3d-2p Pionic X-ray Transitions in Low-Z Atoms

ATOMIC PHYSICS, Mesic-Atoms 12C, 16,18O, 24,26Mg, 28,30Si; measured pionic transmission wave lengths, X-rays; deduced 2p state strong interaction shifts, widths.

doi: 10.1016/0375-9474(85)90370-7
Citations: PlumX Metrics


1985DE42      Nucl.Phys. A444, 589 (1985)

F.W.N.De Boer, B.Aas, P.Baertschi, W.Beer, I.Beltrami, K.Bos, P.F.A.Goudsmit, U.Kiebele, B.Jeckelmann, H.J.Leisi, W.Ruckstuhl, G.Strassner, A.Vacchi, R.Weber

Precision Measurement of the 2p-1s Transition Wavelength in Muonic 13C

ATOMIC PHYSICS, Mesic-Atoms 13C; measured muonic X-rays, transition wavelength; deduced muon-nucleon interaction limits, 12,13C isotope shift. 13C deduced rms charge radius. Bent crystal spectrometer.

NUCLEAR REACTIONS 13C(μ-, X), E at rest; measured X-rays; deduced muon-nucleon interaction limits, 12,13C isotope shift. 13C deduced rms charge radius. Bent crystal spectrometer.

doi: 10.1016/0375-9474(85)90106-X
Citations: PlumX Metrics


1985JE05      Nucl.Instrum.Methods 241, 191 (1985)

B.Jeckelmann, W.Beer, G.De Chambrier, O.Elsenhans, K.L.Giovanetti, P.F.A.Goudsmit, H.J.Leisi, A.Ruetschi

A New Determination of the 25.7 keV Wavelength Standard in the Decay of 161Tb

RADIOACTIVITY 161Tb(β-) [from 160Gd(n, γ)161Gd(β--decay)]; 170Tm(β-) [from 169Tm(n, γ), E=thermal]; 182Ta(β-) [from 181Ta(n, γ), E=thermal]; measured Eγ, Iγ; deduced 25.7 keV wavelength standard. 161Dy, 182W deduced transition energy. High precision crystal spectrometer.

doi: 10.1016/0168-9002(85)90532-7
Citations: PlumX Metrics


1985RU01      Nucl.Phys. A433, 634 (1985)

W.Ruckstuhl, B.Aas, W.Beer, I.Beltrami, K.Bos, G.De Chambrier, P.F.A.Goudsmit, H.J.Leisi, G.Strassner, A.Vacchi, J.M.Van Der Velden, B.Jeckelmann, U.Kiebele, R.Weber

Measurement of the Hyperfine Splitting of the 1s State in Muonic 7Li as a Search for Axial-Vector Muon-Nucleon Interactions

ATOMIC PHYSICS, Mesic-Atoms 7Li; measured muonic hfs; deduced 2p-1s transition strength. High precision bent crystal spectrometer.

NUCLEAR MOMENTS 7Li; measured muonic hfs; deduced axial vector boson mediated muon-nucleon interaction strength upper limit. High precision bent crystal spectrometer.

doi: 10.1016/0375-9474(85)90022-3
Citations: PlumX Metrics


1984AA02      Helv.Phys.Acta 57, 291 (1984)

B.Aas, W.Beer, I.Beltrami, K.Bos, P.F.A.Goudsmit, H.J.Leisi, W.Ruckstuhl, G.Strassner, A.Vacchi, F.W.N.de Boer, U.Kiebele, R.Weber

Prazisionsmessung der Wellenlange des 2p-1s Ueberganges im Muonischen 13C

ATOMIC PHYSICS, Mesic-Atoms 13C; measured 2P-1S transition wave length.


1984BE45      Nucl.Phys. A429, 381 (1984)

I.Beltrami, B.Aas, W.Beer, P.Ebersold, R.Eichler, P.F.A.Goudsmit, M.Guanziroli, Th.v.Ledebur, H.J.Leisi, W.Ruckstuhl, W.W.Sapp, G.Strassner, A.Vacchi, U.Kiebele, R.Weber

The Electron Screening Effect in Muonic 28Si

ATOMIC PHYSICS, Mesic-Atoms 28Si; measured muonic X-rays; deduced transition energies, electron screening effect, muon cascade.

doi: 10.1016/0375-9474(84)90687-0
Citations: PlumX Metrics


1984DE49      Nucl.Instrum.Methods 227, 512 (1984)

G.De Chambrier, B.Aas, W.Beer, I.Beltrami, Th.v.Ledebur, H.J.Leisi, W.Ruckstuhl, G.Strassner, A.Vacchi, U.Kiebele, R.Weber

Precision Measurements of γ-Rays in the Decay of 161Tb

RADIOACTIVITY 161Tb(β-); measured Eγ, transition wavelength. High precision, curved crystal spectrometer.

doi: 10.1016/0168-9002(84)90209-2
Citations: PlumX Metrics


1984RU12      Nucl.Phys. A430, 685 (1984)

W.Ruckstuhl, B.Aas, W.Beer, I.Beltrami, K.Bos, P.F.A.Goudsmit, H.J.Leisi, G.Strassner, A.Vacchi, F.W.N.De Boer, U.Kiebele, R.Weber

Precision Measurement of the 2p-1s Transition in Muonic 12C: Search for new muon-nucleon interactions or accurate determination of the rms nuclear charge radius

ATOMIC PHYSICS, Mesic-Atoms 12C; measured muonic transition wavelength; deduced muon-nucleon interaction nature. 12C deduced rms charge radius. Crystal spectrometer.

doi: 10.1016/0375-9474(84)90101-5
Citations: PlumX Metrics


1983JE09      Nucl.Phys. A408, 495 (1983)

B.Jeckelmann, W.Beer, I.Beltrami, F.W.N.De Boer, G.De Chambrier, P.F.A.Goudsmit, J.Kern, H.J.Leisi, W.Ruckstuhl, A.Vacchi

Spectroscopic Quadrupole Moment of 23Na from Muonic X-Rays

NUCLEAR REACTIONS 23Na(μ-, X), E at rest; measured X-ray spectra. 23Na deduced quadrupole moment.

ATOMIC PHYSICS, Mesic-atoms 23Na(μ-, X), E at rest; measured X-ray spectra. 23Na deduced quadrupole moment.

doi: 10.1016/0375-9474(83)90242-7
Citations: PlumX Metrics


1982AA01      Nucl.Phys. A375, 405 (1982)

B.Aas, W.Beer, I.Beltrami, P.Ebersold, R.Eichler, Th.V.Ledebur, H.J.Leisi, W.Ruckstuhl, W.W.Sapp, A.Vacchi, J.Kern, J.-A.Pinston, W.Schwitz, R.Weber

Vacuum Polarization Test and Search for Muon-Hadron Interactions from Muonic X-Rays: Crystal-spectrometer experiments

ATOMIC PHYSICS, Mesic-Atoms 24Mg, 28Si, 31P; measured muonic X-rays, transition wave lengths; deduced vacuum polarization shift, muon-nucleon interaction limits, muon mass.

doi: 10.1016/0375-9474(82)90021-5
Citations: PlumX Metrics


1982AA02      Nucl.Phys. A375, 439 (1982)

B.Aas, R.Eichler, H.J.Leisi

Transition Wavelengths of Muonic X-Rays of Magnesium, Silicon and Phosphorus

ATOMIC PHYSICS, Mesic-Atoms 24Mg, 28Si, 31P; calculated muonic transition wavelengths. Quantum electrodynamics.

doi: 10.1016/0375-9474(82)90022-7
Citations: PlumX Metrics


1982RU06      Phys.Rev.Lett. 49, 859 (1982)

W.Ruckstuhl, B.Aas, W.Beer, I.Beltrami, F.W.N.de Boer, K.Bos, P.F.A.Goudsmit, U.Kiebele, H.J.Leisi, G.Strassner, A.Vacchi, R.Weber

High-Precision Muonic X-Ray Measurement of the rms Charge Radius of 12C with a Crystal Spectrometer

ATOMIC PHYSICS, Mesic-Atoms 12C; measured muonic X-rays. 12C deduced rms charge radius.

doi: 10.1103/PhysRevLett.49.859
Citations: PlumX Metrics


1982WE04      Nucl.Phys. A377, 361 (1982)

R.Weber, B.Jeckelmann, J.Kern, U.Kiebele, B.Aas, W.Beer, I.Beltrami, K.Bos, G.De Chambrier, P.F.A.Goudsmit, H.J.Leisi, W.Ruckstuhl, G.Strassner, A.Vacchi

Spectroscopic Quadrupole Moments of 25Mg and 27Al from Muonic X-Rays

NUCLEAR MOMENTS 25Mg, 27Al; measured muonic X-rays, hfs; deduced electric field gradient, Sternheimer factor. 25Mg, 27Al deduced spectroscopic quadrupole moment. Nuclear rotational model, strong-coupling limit.

doi: 10.1016/0375-9474(82)90046-X
Citations: PlumX Metrics


1981BE65      Helv.Phys.Acta 54, 643 (1981)

I.Beltrami, B.Aas, W.Beer, G.de Chambrier, P.F.A.Goudsmit, Th.v.Ledebur, H.J.Leisi, W.Ruckstuhl, W.W.Sapp, G.Strassner, A.Vacchi

Prazisionsmessungen der (3d-2p)-Rontgenubergange in Myonischem 28Si und 24Mg

ATOMIC PHYSICS, Mesic-Atoms 28Si, 24Mg; measured muonic X-rays. Crystal spectrometer, high precision.


1981JE02      Helv.Phys.Acta 54, 321 (1981)

B.Jeckelmann, J.Kern, U.Kiebele, J.-A.Pinston, R.Weber, B.Aas, W.Beer, I.Beltrami, K.Bos, G.deChambrier, P.F.A.Goudsmit, Th.V.Ledebur, H.J.Leisi, W.Ruckstuhl, G.Strassner, A.Vacchi

Spektroskopische Quadrupolmomente von 25Mg und 27Al aus Muonischen X-Ray Ubergangen

NUCLEAR MOMENTS 25Mg, 27Al; measured hfs, muonic X-rays; deduced spectroscopic quadrupole moments.


1981RU12      Helv.Phys.Acta 54, 644 (1981)

W.Ruckstuhl, B.Aas, W.Beer, I.Beltrami, K.Bos, P.F.A.Goudsmit, H.J.Leisi, G.Strassner, A.Vacchi, R.Weber, J.M.v.d.Velden

Die Hyperfeinaufspaltung des 1s-Zustandes in μ - 7Li als Test der Wechselwirkung Zwischen Myonen und Nukleonen

NUCLEAR MOMENTS 7Li; measured muonic X-rays, hfs; deduced muon-nucleon axial vector interaction.


1981RU13      Helv.Phys.Acta 54, 644 (1981)

W.Ruckstuhl, B.Aas, I.Beltrami, K.Bongardt, P.F.A.Goudsmit, H.J.Leisi, G.Strassner, A.Vacchi, F.W.N.De Boer, U.Kiebele, R.Weber

Bestimmung des Ladungsradius von 12C aus einer Messung des Myonischen (2p-1s)-Rontgenubergangs

NUCLEAR MOMENTS 12C; measured muonic X-rays; deduced rms radius. Crystal spectrometer.


1981WE01      Phys.Lett. 98B, 343 (1981)

R.Weber, J.Kern, U.Kiebele, J.-A.Pinston, B.Aas, I.Beltrami, Th.Bernold, K.Bongardt, Th.V.Ledebur, H.J.Leisi, W.Ruckstuhl, G.Strassner, A.Vacchi

Spectroscopic Quadrupole Moment of 27Al from Muonic X-Rays

NUCLEAR MOMENTS 27Al; measured muonic X-rays, hfs. 27Al level deduced quadrupole moment. Bent crystal spectrometer.

doi: 10.1016/0370-2693(81)90921-7
Citations: PlumX Metrics


1979AA02      Nucl.Phys. A329, 450 (1979)

B.Aas, W.Beer, I.Beltrami, K.Bongardt, P.Ebersold, R.Eichler, Th. V. Ledebur, H.J.Leisi, W.W.Sapp, J.-A.Pinston, J.Kern, R.Lanners, W.Schwitz

Crystal-Spectrometer Measurement of the 3d-2p X-Ray Transition in Muonic 31P

ATOMIC PHYSICS, Mesic-Atoms 31P; measured wavelength of 3d-2p muonic X-ray transition; deduced muon-hadron anomalous interaction limit.

doi: 10.1016/0375-9474(79)90386-5
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


1978EB01      Nucl.Phys. A296, 493 (1978)

P.Ebersold, B.Aas, W.Dey, R.Eichler, H.J.Leisi, W.W.Sapp, F.Scheck

Monopole and Quadrupole Strong Interaction Effects in Pionic Atoms of 175Lu and 165Ho

NUCLEAR MOMENTS 165Ho; measured quadrupole moment. Generalized moments of neutron distribution.

ATOMIC PHYSICS, Mesic-Atoms 175Lu, 165Ho(π-, X-ray); measured pionic X-rays; deduced monopole, quadrupole interactions, strong-interaction contribution.

doi: 10.1016/0375-9474(78)90087-8
Citations: PlumX Metrics


1975EB06      Phys.Lett. 58B, 428 (1975)

P.Ebersold, B.Aas, W.Dey, R.Eichler, H.J.Leisi, W.W.Sapp, H.K.Walter

Observation of Nuclear Rotational Spectra in Pion Capture on 165Ho and 175Lu

NUCLEAR REACTIONS 165Ho, 175Lu(π-, xn), X=1, 3, 5, 7, 9, 11, E ≈ 0; measured Eγ, Iγ/pion capture. 154,156,158,160,162,164Dy deduced transitions.

doi: 10.1016/0370-2693(75)90580-8
Citations: PlumX Metrics


1974EB03      Phys.Lett. 53B, 48 (1974)

P.Ebersold, B.Aas, W.Dey, R.Eichler, J.Hartmann, H.J.Leisi, W.W.Sapp

Spectroscopic Quadrupole Moment of Holmium from Pionic X-Ray Measurement

NUCLEAR MOMENTS, Mesic-Atoms 165Ho; measured E(X-ray) in pionic Ho; deduced quadrupole moment.

doi: 10.1016/0370-2693(74)90340-2
Citations: PlumX Metrics


1970GY01      Phys.Lett. 32B, 359 (1970)

F.N.Gygax, R.F.Jenefsky, H.J.Leisi

Unperturbed Angular Correlation from a Low-Density Gaseous Source

RADIOACTIVITY 129mXe; measured γγ(θ), ICC. 129Xe level deduced J.

doi: 10.1016/0370-2693(70)90496-X
Citations: PlumX Metrics


1970LE16      Phys.Rev. A1, 1654 (1970)

H.J.Leisi

Hyperfine Interaction Induced by Electron Capture. I. γ-γ Directional-Correlation Experiments

RADIOACTIVITY 125,127Xe; measured γγ(θ, H); deduced EC-induced hyperfine interaction.

doi: 10.1103/PhysRevA.1.1654
Citations: PlumX Metrics


1966LE09      Nucl.Phys. 76, 308 (1966)

H.J.Leisi

Angular Correlations in the Decay of 127Xe

RADIOACTIVITY 127Xe[from 126Xe(n, γ), 127I(p, n)]; measured γγ(θ); deduced attenuation. 127I levels deduced J. Enriched targets.

doi: 10.1016/0029-5582(66)90025-3
Citations: PlumX Metrics


1965LE14      Phys.Letters 17, 308 (1965)

H.J.Leisi

Resonance Peak in Perturbed Gamma-Gamma Angular Correlations

NUCLEAR STRUCTURE 127Xe; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0031-9163(65)90543-3
Citations: PlumX Metrics


1964LE13      Phys.Letters 12, 221 (1964)

H.J.Leisi

K-Capture Effects on Angular Correlations in Gaseous Sources

NUCLEAR STRUCTURE 125Xe, 127Xe; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0031-9163(64)91081-9
Citations: PlumX Metrics


1962PE04      Nuclear Phys. 31, 157 (1962)

C.F.Perdrisat, H.J.Leisi, J.H.Brunner

Mono-Energetic Positons in Bi205

NUCLEAR STRUCTURE 205Bi; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0029-5582(62)90735-6
Citations: PlumX Metrics


1962PE08      Helv.Phys.Acta 35, 175 (1962)

C.F.Perdrisat, J.H.Brunner, H.J.Leisi

Etude des Spectres de Positrons des Desintegrations du Bi205 et du Bi206

NUCLEAR STRUCTURE 205Bi, 206Bi; measured not abstracted; deduced nuclear properties.


1961BR19      Helv.Phys.Acta 34, 472 (1961)

J.H.Brunner, R.Lombard, C.F.Perdrisat, H.J.Leisi

Spectres de Positrons dans les Desintegrations Bi205 → Pb205 et Bi206 → Pb206

NUCLEAR STRUCTURE 205Bi, 206Bi; measured not abstracted; deduced nuclear properties.


1961LE05      Helv.Phys.Acta 34, 161 (1961)

H.J.Leisi, J.H.Brunner, C.F.Perdrisat, P.Scherrer

Monoenergetische Positronen

NUCLEAR STRUCTURE 206Bi; measured not abstracted; deduced nuclear properties.


1959BR10      Phys.Rev.Letters 2, 207 (1959)

J.H.Brunner, H.J.Leisi, C.F.Perdrisat, P.Scherrer

Monoenergetic Positrons in the Decay of Bi206

doi: 10.1103/PhysRevLett.2.207
Citations: PlumX Metrics


1956BR04      Helv.Phys.Acta 29, 238 (1956)

J.Brunner, J.Halter, H.J.Leisi

Die Konversionsspektren hoher Energie von Hg195 und Hg193


1955BR12      Helv.Phys.Acta 28, 475 (1955)

J.Brunner, H.Guhl, J.Halter, H.J.Leisi

Zum Zerfall von Hg195, Hg194, und Hg193


Back to query form