P. Sona
University of Florence
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Featured researches published by P. Sona.
Physics Letters B | 1999
K. Kirsebom; Yu.V. Kononets; U. Mikkelsen; S.P. Møller; E. Uggerhøj; T. Worm; K. Elsener; C. Biino; S. Ballestrero; P. Sona; R. Avakian; K.A. Ispirian; S. Taroian; Simon Henry Connell; J.P.F. Sellschop; Zabulon Vilakazi
Abstract Presented are experimental results for the difference in pair production probability (the asymmetry) for 5–150 GeV photons polarized parallel and perpendicular to a (110) plane in a 1.5 mm thick diamond 〈100〉 crystal. The photons are produced by interaction of 150 GeV electrons with an aligned diamond 〈100〉 crystal of 0.5 mm thickness. A significant asymmetry is found over the whole energy range, which corresponds to a high degree of linear polarization of the photons as well as a difference in the refractive index. This proof-of-principle result gives the possibility of producing high energy photons with circular polarization by use of a crystal. This might open for several opportunities in high energy physics like for instance the investigation of the contribution of the gluons to the spin of the nucleon.
Journal of Physics G: Nuclear Physics | 1987
N. Taccetti; P.A. Mandò; P. Sona; K P Lieb
Levels in 49Ca and 51Ti were populated via the 48Ca(d,p)49Ca and 50Ti(d,p)51Ti reactions at 6 MeV bombarding energy. Two sets of particle-gamma coincidences were recorded simultaneously between each of two silicon detectors and a germanium detector. Mean lifetimes or lifetime limits were measured by the Doppler shift attenuation method for eight levels in 49Ca and nine levels in 51Ti. An extended decay scheme of excited levels in 51Ti was established up to 3.7 MeV. The lifetimes of several states in 41Ca and 49Ti were also measured.
Physical Review D | 2012
Kristoffer K. Andersen; J. Esberg; H. Knudsen; H.D. Thomsen; U.I. Uggerhøj; P. Sona; A. Mangiarotti; T. Ketel; A. Dizdar; S. Ballestrero
The classical description of synchrotron radiation fails at large Lorentz factors,
Journal of Physics G: Nuclear Physics | 1983
P.A. Mandò; P. Sona; N. Taccetti; F. Brandolini; C. Rossi Alvarez; M. De Poli
\gamma
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms | 1996
P. Tesauro; P.A. Mandò; G. Parrini; A. Pecchioli; P. Sona
, for relativistic electrons crossing strong transverse magnetic fields
Physical Review C | 1995
A. Giannatiempo; A. Nannini; A. Perego; P. Sona; M. J. G. Borge; Olof Tengblad
B
Journal of Physics G: Nuclear Physics | 1984
P. Sona; P.A. Mandò; N. Taccetti
. In the rest frame of the electron this field is comparable to the so-called critical field
International Journal of Modern Physics A | 2001
G. Unel; A. Apyan; R. Avakian; S. Ballestrero; C. Biino; P. Cenci; Simon Henry Connell; S. Eichblatt; T. Fonseca; Andreas K. Freund; A. Gianoli; R. Groess; B. Gorini; K. Ispirian; T.J. Ketel; A. Lopez; S. Luitz; U. Mikkelsen; E. Menichetti; A. Perego; B. van Rens; J.P.F. Sellschop; P. Sona; V. Strakhovenko; E. Uggerhøj; M. Velasco; Zabulon Vilakazi; O. Wessely
B_0 = 4.414\cdot10^9
Nuclear Physics B (Proceedings Supplements) | 1995
A. Baurichter; K. Kirsebom; R. Medewaldt; U. Mikkelsen; S. Møller; E. Uggerhøj; T. Worm; K. Elsener; S. Ballestrero; P. Sona; J. Romano
T. For
Physical Review D | 2013
Kristoffer K. Andersen; Søren L. Andersen; J. Esberg; H. Knudsen; Rune E. Mikkelsen; U.I. Uggerhøj; Tobias N. Wistisen; P. Sona; A. Mangiarotti; T. Ketel
\chi = \gamma B/B_0 \simeq 1
