HAL : in2p3-00311454, version 1

DOI : 10.1103/PhysRevLett.71.2551

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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

(1993)

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

Thème(s)

:

Physique/Physique Nucléaire Expérimentale

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Contributeur : Michel Lion <>

Soumis le : Lundi 18 Août 2008, 10:38:35

Dernière modification le : Lundi 18 Août 2008, 11:33:31