ITA
ENG

MEASUREMENT OF THE ETA(1440)-](KKL0)-K-+ -PI(-/+) PRODUCTION-RATES FROM (P)OVER-BAR-P ANNIHILATION AT REST AT 3 DIFFERENT HYDROGEN TARGET DENSITIES/

Authors

BERTIN A BRUSCHI M CAPPONI M DECASTRO S FERRETTI A GALLI D GIACOBBE B MARCONI U PICCININI M SEMPRINICESARI N SPIGHI R VECCHI S VEZZANI A VIGOTTI F VILLA M VITALE A ZOCCOLI A CORRADINI M DONZELLA A RIZZINI EL VENTURELLI L ZENONI A ADAMO A CICALO C LAI A MASONI A MUSA L PUDDU G SERCI S TEMNIKOV PP USAI G DENISOV OY GORCHAKOV OE PRAKHOV SN ROZHDESTVENSKY AM SAPOZHNIKOV MG TRETYAK VI GIANOTTI P GUARALDO C LANARO A LUCHERINI V NICHITIU F PETRASCU C ROSCA A ABLEEV VG CAVION C GASTALDI U LOMBARDI M MORANDO M BENDISCIOLI G FILIPPINI V FONTANA A MONTAGNA P ROTONDI A SAINO A SALVINI P BALESTRA F BOTTA E BRESSANI T BUSSA MP BUSSO L CALVO D CERELLO P COSTA S DISEP D FAVA L FELICIELLO A FERRERO L FILIPPI A GARFAGNINI R GRASSO A MAGGIORA A MARCELLO S MIRFAKHRAI N PANZIERI D PARENA D ROSSETTO E TOSELLO F ZOSI G AGNELLO M IAZZI F MINETTI B PAULI G TESSARO S SANTI L

Citation

A. Bertin et al., MEASUREMENT OF THE ETA(1440)-](KKL0)-K-+ -PI(-/+) PRODUCTION-RATES FROM (P)OVER-BAR-P ANNIHILATION AT REST AT 3 DIFFERENT HYDROGEN TARGET DENSITIES/, Physics letters. Section B, 385(1-4), 1996, pp. 493-499

Citations number

Categorie Soggetti

Physics

Journal title

Physics letters. Section B → ACNP

ISSN journal

03702693

Volume

385

Issue

1-4

Year of publication

1996

Pages

493 - 499

Database

ISI

SICI code

0370-2693(1996)385:1-4<493:MOTE-P>2.0.ZU;2-N

Abstract

From the study of the annihilation at rest <(p)over bar p> --> K+/- K- miss(0) pi(-/+)pi(+)pi(-) the production rates of the eta(1440) --> (K KL0)-K-+/- pi(-/+) were obtained for three different hydrogen target d ensities: liquid, gaseous at NTP and at low pressure (5 mbar). The rat e values are: f(eta(1440)) (LH) = (6.0 +/- 0.5) . 10(-4), f(eta(1440)) (NTP) = (2.9 +/- 0.4) . 10(-4) and f(eta(1440)) (5 mbar) = (1.0 +/- 0 .2) . 10(-4). From these results, the density dependence of the annihi lation fraction from the S-1(0) protonium level can be extracted direc tly.