EXPERIMENTAL-MEASUREMENT OF THE KSKS KSKL RATIO IN ANTIPROTON ANNIHILATIONS AT REST IN GASEOUS-HYDROGEN AT 15 AND 27 BAR/

Authors
ADLER R ALHALEL T ANGELOPOULOS A APOSTOLAKIS A ASLANIDES E BACKENSTOSS G BARGASSA P BEE CP BEHNKE O BENELLI A BERTIN V BLANC F BLOCH P CARLSON P CARROLL M CARVALHO J CAWLEY E CHARALAMBOUS S CHARDIN G CHERTOK MB CODY A DANIELSSON M DEJARDIN M DERRE J EALET A ECKART B ELEFTHERIADIS C EVANGELOU I FARAVEL L FASSNACHT P FELDER C FERREIRAMARQUES R FETSCHER W FIDECARO M FILIPCIC A FRANCIS D FRY J GABATHULER E GAMET R GARRETA D GERBER HJ GO A GUYOT C HASELDEN A HAYMAN PJ HENRYCOUANNIER F HOLLANDER RW HUBERT E JONAND K KETTLE PR KOCHOWSKI C KOKKAS P KREUGER R LEGAC R LEIMGRUBER F LIOLIOS A MACHADO E MANDIC I MANTHOS N MAREL G MIKUZ M MILLER J MONTANET F MULLER A NAKADA T PAGELS B PAPADOPOULOS I PAVLOPOULOS P DACUNHA JP POLICARPO A POLIVKA G RICKENBACH R ROBERTS BL RUF T SAKELIOU L SANDERS P SANTONI C SCHAFER M SCHALLER LA SCHIETINGER T SCHOPPER A SCHUNE P SOARES A TAUSCHER L THIBAULT C TOUCHARD F TOURAMANIS C TRIANTIS F VANBEVEREN E VANEIJK CWE VLACHOS S WEBER P WIGGER O WOLTER M YECHE C ZAVRTANIK D ZIMMERMAN D
Citation
R. Adler et al., EXPERIMENTAL-MEASUREMENT OF THE KSKS KSKL RATIO IN ANTIPROTON ANNIHILATIONS AT REST IN GASEOUS-HYDROGEN AT 15 AND 27 BAR/, Physics letters. Section B, 403(3-4), 1997, pp. 383-389
Citations number
7
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
403
Issue
3-4
Year of publication
1997
Pages
383 - 389
Database
ISI
SICI code
0370-2693(1997)403:3-4<383:EOTKKR>2.0.ZU;2-C
Abstract
The ratio R between the branching fractions of (p) over bar p --> KSKS and (p) over bar p --> KSKL for antiprotons annihilating at rest in g aseous hydrogen at 27 bar pressure was measured with the CPLEAR detect or to be R(27 bar) = 0.037 +/- 0.002. The fraction of P-wave annihilat ion at rest at this target density was deduced to be 0.45 +/- 0.06. A value of R was also measured at 15 bar, with less statistics, yielding R(15 bar) = 0.041 +/- 0.009. (C) 1997 Published by Elsevier Science B .V.