ANTIPROTON STOPPING POWER IN HYDROGEN BELOW 120 KEV AND THE BARKAS EFFECT

Authors
ADAMO A AGNELLO M BALESTRA F BELLI G BENDISCIOLI G BERTIN A BOCCACCIO P BONAZZOLA GC BRESSANI T BRUSCHI M BUSSA MP BUSSO L CALVO D CAPPONI M CICALO C CORRADINI M COSTA S DANTONE I DECASTRO S DISEP F DONZELLA A FALOMKIN IV FAVA L FELICIELLO A FERRERO L FILIPPINI V GALLI D GARFAGNINI R GASTALDI U GIANOTTI P GRASSO A GUARALDO C IAZZI F LANARO A RIZZINI EL LOMBARDI M LUCHERINI V MAGGIORA A MARCELLO S MARCONI U MARON G MASONI A MASSA I MINETTI B MORANDO M MONTAGNA P NICHITIU F PANZIERI D PAULI G PICCININI M PIRAGINO G POLI M PONTECORVO GB PUDDU G RICCI RA ROSSETTO E ROTONDI A ROZHDESTVENSKY AM SALVINI P SANTI L SAPOZHNIKOV MG CESARI NS SERCI S TEMNIKOV P TESSARO S TOSELLO F TRETYAK VI USAI GL VANNUCCI L VEDOVATO G VENTURELLI L VILLA M VITALE A ZAVATTINI G ZENONI A ZOCCOLI A ZOSI G
Citation
A. Adamo et al., ANTIPROTON STOPPING POWER IN HYDROGEN BELOW 120 KEV AND THE BARKAS EFFECT, Physical review. A, 47(5), 1993, pp. 4517-4520
Citations number
33
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
47
Issue
5
Year of publication
1993
Part
B
Pages
4517 - 4520
Database
ISI
SICI code
1050-2947(1993)47:5<4517:ASPIHB>2.0.ZU;2-T
Abstract
The simultaneous measurement of the spatial coordinates and times of p sBAR annihilating at rest in a H-2 target at very low density rho (rho /rho0 < 10(-2), rho0 being the STP density) gives the possibility of e valuating the behavior of the pBAR stopping power in H-2 at low energi es (below 120 keV). It is different from that of protons (the Barkas e ffect). Moreover, it is shown that a rise at low-energy values ( less than or similar to 1 keV) is needed to agree with experimental data.