ANTIPROTON - HE-4 INTERACTIONS AT 200 MEV C

Authors
BALESTRA F BATUSOV YA BENDISCIOLI G BOSSOLASCO S BUSSA MP BUSSO L BUNYATOV SA DANIELSEN KM FALOMKIN IV FAVA L FERRERO L FILIPPINI V GUARALDO C HAATUFT A HALSTEINSLID A JAKOBSEN T LODIRIZZINI E MAGGIORA A MYKLEBOST K NICHITIU F OLSEN JM PANZIERI D PIRAGINO G PONTECORVO GB ROTONDI A ROZHDESTVENSKY AM SALVINI P SAPOZHNIKOV MG TOSELLO F TRETYAK VI ZENONI A
Citation
F. Balestra et al., ANTIPROTON - HE-4 INTERACTIONS AT 200 MEV C, Physics letters. Section B, 305(1-2), 1993, pp. 18-22
Citations number
24
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
305
Issue
1-2
Year of publication
1993
Pages
18 - 22
Database
ISI
SICI code
0370-2693(1993)305:1-2<18:A-HIA2>2.0.ZU;2-5
Abstract
The differential cross sections for antiproton elastic scattering on H e-4 at 192.8 MeV/c are measured. The annihilation cross section sigma( a) = (377.6+/-8.0) mb, the elastic cross section sigma(el) = (206.3+/- 6.6) mb and the total pBARHe-4 interaction cross section sigma(tot) = (583.9+/-10.4) mb are determined. The ratio of the real to imaginary p art of the forward pBARHe-4 amplitude is found: rho = -0.17(-0.33)+0.2 4. Partial wave analysis reveals that the S, P and D waves are essenti al in this energy region.