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Featured researches published by Sp. Dedoussis.


European Physical Journal C | 1988

Remeasurement of the magnetic moment of the antiproton

A. Kreissl; A. D. Hancock; H. Koch; Th. Köhler; H. Poth; U. Raich; D. Rohmann; A. Wolf; L. Tauscher; A. Nilsson; Martin Suffert; M. Chardalas; Sp. Dedoussis; H. Daniel; T. von Egidy; F. J. Hartmann; W. Kanert; H.S. Plendl; G. Schmidt; J.J. Reidy

AbstractA high-precision measurement of the finestructure splitting in the circular 11→10 X-ray transition ofn


Physics Letters A | 1988

Temperature dependence of Doppler broadening of the annihilation line in a high Tc superconductor

Stef. Charalambous; M. Chardalas; Sp. Dedoussis; C. Elefteriades; A. Liolios; D. Niarchos


Physics Letters B | 1986

Precision measurement of strong interaction isotope effects in antiprotonic 16O, 17O, and 18O atoms

Th. Köhler; Philipp Blum; G. Büche; A. D. Hancock; H. Koch; A. Kreissl; H. Poth; U. Raich; D. Rohmann; G. Backenstoss; Ch. Findeisen; J. Repond; L. Tauscher; A. Nilsson; Staffan Carius; Martin Suffert; S. Charalambus; M. Chardalas; Sp. Dedoussis; H. Daniel; T. von Egidy; F. J. Hartmann; W. Kanert; G. Schmidt; J.J. Reidy; M. Nicholas; A. Wolf

bar p^{208} Pb


Physics Letters A | 1997

Positron annihilation studies in high-Tc superconductors RBa2Cu3Oy, R: La, Nd, Sm, Eu, Gd, Dy, Ho, Y, Er

Th. Lagouri; Sp. Dedoussis; M. Chardalas; A. Liolios


Physics Letters A | 1977

Temperature dependence of positron annihilation parameters in tin

Sp. Dedoussis; Stef. Charalambous; M. Chardalas

n was performed. The experimental value of 1199(5) eV is in agreement with QED calculations. From that value the magnetic moment of the antiproton was deduced to be −2.8005(90)μnucl. With this result the uncertainty of the previous world average value was reduced by a factor of ≈2. A comparison with the corresponding quantity of the proton now yields:n


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1992

The CPLEAR particle identification detector

A. Angelopoulos; A. Apostolakis; G. Backenstoss; P. Carlson; J. Carvalho; Stef. Charalambous; M. Chardalas; H. Cobbaert; Sp. Dedoussis; P. Fassnacht; R. Ferreira-Marques; D. Francis; W. Fetcher; C. Fuglesang; H.-J. Gerber; Alan S. Go; Kjell Jansson; K. Jon-And; A. Kerek; G. Kesseler; P. Kokkas; J. Kuzminski; T. Lawry; E. Machado; J. P. Miller; F. Montanet; A. Onofre; P. Pavlopoulos; F. Pelucchi; J. Pinto da Cunha


Physics Letters A | 1991

Point defects in neutron-transmutation-doped Czochralski-grown Si studied by positron annihilation

Xiang Ti Meng; A. Liolios; M. Chardalas; Sp. Dedoussis; C. Eleftheriadis; Staf. Charalambous

{{left( {mu _p - left| {leftlangle {mu _{bar p} } rightrangle } right|} right)} mathord{left/ {vphantom {{left( {mu _p - left| {leftlangle {mu _{bar p} } rightrangle } right|} right)} {mu _p }}} right. kern-nulldelimiterspace} {mu _p }} = left( { - 2.4 pm 2.9} right) times 10^{ - 3}


Nuclear Physics | 1987

Measurement of strong-interaction effects in light antiprotonic atoms

H. Poth; H. Barth; G. Büche; A. D. Hancock; H. Koch; Th. Köhler; A. Kreissl; U. Raich; D. Rohmann; A. Wolf; L. Tauscher; A. Nilsson; Martin Suffert; M. Chardalas; Sp. Dedoussis; H. Daniel; T. von Egidy; F. J. Hartmann; W. Kanert; H.S. Plendl; G. Schmidt; J.J. Reidy


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1985

Light losses in BGO and BaF2 scintillators due to positron states

A. Schiltz; C. Elefteriades; A. Liolios; M. Chardalas; Sp. Dedoussis; K. Zioutas; Stef. Charalambous

n.


Computer Physics Communications | 1984

A new version of minuit program for a PDP11/34A computer system

Sp. Dedoussis; M. Chardalas; Stef. Charalambous

Abstract Positron annihilation measurements in the high Tc superconductor YBa2Cu3O6+χ have been performed. The S parameter decreases with temperature in two steps. That is an indication of a two-step superconducting transition.

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M. Chardalas

Aristotle University of Thessaloniki

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A. Liolios

Aristotle University of Thessaloniki

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Stef. Charalambous

Aristotle University of Thessaloniki

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A. Kreissl

Karlsruhe Institute of Technology

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D. Rohmann

Karlsruhe Institute of Technology

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U. Raich

Karlsruhe Institute of Technology

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A. D. Hancock

Karlsruhe Institute of Technology

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