title: Exclusive measurements of mean pion multiplicities in 4He-nucleus reactions from 200 to 800 MeV/nucleon.
abstract: Mean multiplicities of pi+ and pi- in 4He collisions with C, Cu, and Pb at 200, 600, and 800 MeV/u, and with C and Pb at 400 MeV/u have been measured using the large solid angle detector Diogene.  The independence of pion multiplicity on projectile incident energy, target mass and proton multiplicity is studied in comparison with intra-nuclear cascade predictions.  The discrepancy between experimental results and theory is pointed out and discussed.
authors.affiliation: DPhN, CEN Saclay, Gif sur Yvette, France.
authors.forename: D
authors.initials: D
authors.lastname: L'Hôte
authors.forename: J P
authors.initials: JP
authors.lastname: Alard
authors.forename: J
authors.initials: J
authors.lastname: Augerat
authors.forename: R
authors.initials: R
authors.lastname: Babinet
authors.forename: F
authors.initials: F
authors.lastname: Brochard
authors.forename: Z
authors.initials: Z
authors.lastname: Fodor
authors.forename: L
authors.initials: L
authors.lastname: Fraysse
authors.forename: J
authors.initials: J
authors.lastname: Girard
authors.forename: P
authors.initials: P
authors.lastname: Gorodetzky
authors.forename: J
authors.initials: J
authors.lastname: Gosset
authors.forename: C
authors.initials: C
authors.lastname: Laspalles
authors.forename: M C
authors.initials: MC
authors.lastname: Lemaire
authors.forename: B
authors.initials: B
authors.lastname: Lucas
authors.forename: G
authors.initials: G
authors.lastname: Montarou
authors.forename: M J
authors.initials: MJ
authors.lastname: Parizet
authors.forename: J
authors.initials: J
authors.lastname: Poitou
authors.forename: C
authors.initials: C
authors.lastname: Racca
authors.forename: W
authors.initials: W
authors.lastname: Schimmerling
authors.forename: J C
authors.initials: JC
authors.lastname: Tamain
authors.forename: Y
authors.initials: Y
authors.lastname: Terrien
authors.forename: J
authors.initials: J
authors.lastname: Valero
authors.forename: J
authors.initials: J
authors.lastname: Cugnon
authors.forename: J
authors.initials: J
authors.lastname: Vandermeulen
mesh_terms: D002244:Carbon; D003300:Copper; D004735:Energy Transfer; D006371:Helium; D007477:Ions; D007854:Lead; D008651:Mesons; D008962:Models, Theoretical; D009010:Monte Carlo Method; D009686:Nuclear Physics; D011522:Protons; D011874:Radiometry
chemical_list: D007477:Ions; D011522:Protons; D006371:Helium; D007854:Lead; D002244:Carbon; D003300:Copper