Zobrazeno 1 - 10
of 78
pro vyhledávání: '"M. Spighel"'
Autor:
G. Bologna, R. Genre, B. Ille, M. Richard, S. Costa, M. Chevallier, P. Lautesse, M.J. Gaillard, R. Garfagnini, R. Kirsch, M. Spighel, M. Gouanere, Michel Farizon, E. Rossetto, D. Boget, D. Sillou, G. Bassompierre, B. Farizon-Mazuy, A. Feliciello, J. Dufournaud
Publikováno v:
EPL-Europhysics Letters
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 1993, 22, pp.239-244
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 1993, 22, pp.239-244
We give upper bounds on the photoproduction in overcritical electric fields of a neutral light boson which could explain the correlated e+e- production seen at GSI-Darmstadt in heavy-ion-atom collisions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d63c2e1eafb85bf8fa7f44d3e99ee442
https://doi.org/10.1209/0295-5075/22/4/001
https://doi.org/10.1209/0295-5075/22/4/001
Autor:
R. Genre, M. Spighel, P. Catillon, J. C. Poizat, M.J. Gaillard, M. Gouanère, Nelson Cue, L. Roussel, R. Kirsch, J. Remillieux
Publikováno v:
Foundations of Physics
Foundations of Physics, 2008, 38, pp.659-664. ⟨10.1007/s10701-008-9225-1⟩
Foundations of Physics, Springer Verlag, 2008, 38, pp.659-664. ⟨10.1007/s10701-008-9225-1⟩
Foundations of Physics, 2008, 38, pp.659-664. ⟨10.1007/s10701-008-9225-1⟩
Foundations of Physics, Springer Verlag, 2008, 38, pp.659-664. ⟨10.1007/s10701-008-9225-1⟩
The particle internal clock conjectured by de Broglie in 1924 was investigated in a channeling experiment using a beam of ~80 MeV electrons aligned along the 〈110〉 direction of a 1 μm thick silicon crystal. Some of the electrons undergo a rosett
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98b551330ff290e3a6a209eb9ddae4e1
https://hal.in2p3.fr/in2p3-00311952
https://hal.in2p3.fr/in2p3-00311952
Autor:
Bernard Ille, D. Sillou, J. Dufournaud, A. Feliciello, R. Genre, S. Costa, B. Farizon Mazuy, G. Bologna, G. Bassompierre, R. Kirsch, M. Chevallier, M. Spighel, P. Lautesse, M.J. Gaillard, D. Boget, Michel Farizon, E. Rossetto, M. Gouanere, M. Richard, R. Garfagnini
Publikováno v:
Physics Letters B
Physics Letters B, Elsevier, 1995, 355, pp.584-594
Physics Letters B, Elsevier, 1995, 355, pp.584-594
We describe a search for a light neutral object X0 possibly produced by ≈ 100 GeV photons interacting with the QED strong field encountered along the axis of a cooled Ge crystal. We look at the e+e− decay mode, in short (10−18−10−12 s) as w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd0340183e886bec28f53e370f7c81d3
http://cds.cern.ch/record/284202
http://cds.cern.ch/record/284202
Autor:
A. Feliciello, Michel Farizon, E. Rossetto, S. Costa, R. Genre, J. Dufournaud, P. Lautesse, G. Bassompierre, R. Kirsch, M. Spighel, G. Bologna, Bernard Ille, D. Sillou, R. Garfagnini, M. Richard, X. Artu, B. Farizon-Mazuy, M. Chevallier, M.J. Gaillard, D. Boget, M. Gouanere
Angular and energy distributions of electrons and positrons created by 83–133 GeV photons in an aligned crystal (strong field pair creation) have been measured. The experiment exhibits the “blocking” effect for the positron and the difference o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::040b77b9695e9683fe18152eec1187ea
http://cds.cern.ch/record/251504
http://cds.cern.ch/record/251504
Autor:
J. C. Kimball, J. Remillieux, Michel Chevallier, B. Marsh, N. Cue, R. Kirsch, R. Genre, A. Clouvas, M. Spighel, D. Sillou, J.C. Poizat, G. Bologna, C. R. Sun, Jean Pierre Peigneux, M.J. Gaillard, A. Belkacem
Publikováno v:
Physical Review Letters. 54:2667-2670
We have measured the radiation emitted by 150-GeV ${e}^{\ensuremath{-}}$ incident along the $〈110〉$ axis of Ge crystals. The on-axis total radiated energy is 25 times larger than for nonaligned directions for 0.4-mm-thick Ge. The distribution of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fff312a80af83b645e8cc5b58a26afc
https://doi.org/10.1103/physrevlett.54.2667
https://doi.org/10.1103/physrevlett.54.2667
Autor:
J.C. Poizat, M.J. Gaillard, R. Kirsch, M. Spighel, C. R. Sun, R. Genre, D. Sillou, Jean Pierre Peigneux, Michel Chevallier, G. Bologna, N. Cue, A. Belkacem, H. Remillieux, J. C. Kimbali, B. B. Marsh
Publikováno v:
EPL-Europhysics Letters
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 1988, 5, pp.589-594
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 1988, 5, pp.589-594
Radiation spectra measured for 150 GeV positrons directed at or close to the (10) planar direction of a 0.185 mm thick Ge crystal show clear evidence for increasing lower cut-off frequency with decreasing pathlength in the planar electric field. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e33c1abf520f8ac7f9edf704093e123
https://doi.org/10.1209/0295-5075/5/7/003
https://doi.org/10.1209/0295-5075/5/7/003
Autor:
R. Kirsch, M. Spighel, N. Cue, G. M. Temmer, M.J. Gaillard, M. Gouanere, D. Sillou, L. Roussel, J.C. Poizat, P. Catillon, J. Remillieux, B. L. Berman
Publikováno v:
Nuclear Instruments and Methods in Physics Research. 194:225-228
Measured energy spectra of photons emitted at 0° by a 54 MeV electron beam channeled along the most open planar directions of a 20 μm thick diamond single crystal show unusually sharp lines which are identified as transitions between discrete state
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d733cd6d984f5ae47d874026fd55e0a8
https://doi.org/10.1016/0029-554x(82)90518-3
https://doi.org/10.1016/0029-554x(82)90518-3
Autor:
P. Duteil, Jean Pierre Peigneux, M. Gouanère, Harry Palevsky, Jean-Pierre Lagnaux, L. Hugon, Jean-Pierre Stroot, M. Spighel, J. Jansen, Freddy Binon
Publikováno v:
Physical Review Letters. 35:145-148
We present π - He4 differential cross sections at 110, 150, 180, 220, and 260 MeV, as well as total cross sections at eleven energies between 67 and 285 MeV. © 1975 The American Physical Society.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86f9850a80b52d8382c6f03f984ccbfe
https://doi.org/10.1103/physrevlett.35.145
https://doi.org/10.1103/physrevlett.35.145
Autor:
Jean Pierre Peigneux, G. Massas, Charles Bricman, Daniel Sillou, Jean-Pierre Lagnaux, P. Duteil, Freddy Binon, H. Brüning, Jean-Pierre Stroot, M. Spighel, R. Hartung, J. Jansen, Andreas Bamberger, M. Gouanère, Pierre Vilain
Publikováno v:
Nuclear Physics B. 134:1-13
We report measurements at the CERN PS of the production cross section of J/ψ(3.1) by 24 GeV protons on hydrogen, carbon, and tungsten.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::003275b6e3e2cb6889ad25d498d745e7
https://doi.org/10.1016/0550-3213(78)90481-9
https://doi.org/10.1016/0550-3213(78)90481-9
Autor:
M. Spighel, Freddy Binon, P. Duteil, A. M. Wetherell, E.J. Sacharidis, Jean-Pierre Stroot, K. Schlüpmann, J.V. Allaby, R. Meunier, Atle Klovning, Jean Pierre Peigneux, A.N. Diddens, A.M. Thorndike
Publikováno v:
Physics Letters B. 29:198-202
Results are presented from an experiment in which high-energy deuterons, produced by proton-proton interactions at 21.1 GeV/ c incident momentum, were detected over a range of angles from 12.5 mrad to 60 mrad in the laboratory system. From the moment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::349cfd5dd2fc99b8891f3b5a20dfd72d
https://doi.org/10.1016/0370-2693(69)90019-7
https://doi.org/10.1016/0370-2693(69)90019-7