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NSR database version of April 26, 2024.

Search: Author = A.J.El Hassani

Found 13 matches.

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2014HE33      Eur.Phys.J. A 50, 190 (2014); Erratum Eur.Phys.J. A 55, 24 (2019)

M.Hennebach, D.F.Anagnostopoulos, A.Dax, H.Fuhrmann, D.Gotta, A.Gruber, A.Hirtl, P.Indelicato, Y.-W.Liu, B.Manil, V.E.Markushin, A.J.R.El Hassani, L.M.Simons, M.Trassinelli, J.Zmeskal

Hadronic shift in pionic hydrogen

ATOMIC PHYSICS 1H; measured X-ray diffraction using quartz and silicon; deduced hadronic ground-state shift vs gas density; calculated pionic hydrogen E(X), hadronic shift.

doi: 10.1140/epja/i2014-14190-x
Citations: PlumX Metrics

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

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

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

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

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

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.

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Note: The following list of authors and aliases matches the search parameter A.J.El Hassani: , A.J.EL HASSANI, A.J.EL-HASSANI