version française rss feed
HAL : in2p3-00311454, version 1

Fiche détaillée  Récupérer au format
Physical Review Letters 71 (1993) 2551-2554
Search for color van der Waals force in $^{208}$Pb+$^{208}$Pb Mott scattering
A.C.C. Villari, W. Mittig1, A. Lépine-Szily, R. Lichtenthäler Filho, G. Auger1, L. Bianchi1, R. Beunard1, J.M. Casandjian1, J.L. Ciffre1, A. Cunsolo, A. Foti, L. Gaudard1, C. L. Lima, E. Plagnol1, Y. Schutz1, R.H. Siemssen, J.P. Wieleczko1

In a high precision experiment, Mott scattering of the 208Pb+108Pb system was measured at Elab=873.40 MeV and 1129.74 MeV with kinematic coincidences for angle pairs around θlab=30°, 60° and θlab=45°, 45°. The observed Mott oscillations exhibit an angular shift with respect to pure Mott scattering. A comparison with the angular shift produced by a color van der Waals force including nuclear polarizability, vacuum polarization, relativistic effects, and electronic screening provides a new upper limit for the strength of this force. Influence of atomic effects other than screening were identified for the first time.
1 :  GANIL - Grand Accélérateur National d'Ions Lourds
Physique/Physique Nucléaire Expérimentale