ANTIPROTON-PROTON ANNIHILATION AT REST INTO KAPPA(O)(L)KAPPA(+ -)PI(-/+)PI(O) - MANIFESTATIONS OF ISOSPIN INTERFERENCE/

Authors
ABELE A ADOMEIT J AMSLER C BAKER CA BARNETT BM BATTY CJ BENAYOUN M BERDOZ A BEUCHERT K BISCHOFF S BLUM P BRAUNE K BUGG DV CASE T CRAMER O CREDE V CROWE KM DEGENER T DJAOSHVILI N VONDOMBROWSKI S DOSER M DUNNWEBER W EHMANNS A ENGELHARDT D FAESSLER MA GIARRITTA P HADDOCK RP HEINSIUS FH HEINZELMANN M HERZ M HESSEY NP HIDAS P HODD C HOLTZHAUSSEN C JAMNIK D KALINOWSKY H KAMMLE B KAMMEL P KISIEL J KLEMPT E KOCH H KOLO C KUNZE M KURILLA U LAKATA M LANDUA R MATTHAY H MCCRADY R MEIER J MEYER CA MONTANET L OUARED R OULDSAADA F PETERS K PICK B PIETRA C PINDER CN RATAJCAK M REGENFUS C REISSMANN J RESAG S ROETHEL W SCHMIDT P SCOTT I SEIBERT R SPANIER S STOCK H STRASSBURGER C STROHBUSCH U SUFFERT M THOMA U TISCHHAUSER M VOLCKER C WALLIS S WALTHER D WIEDNER U ZOU BS ZUPANCIC C
Citation
A. Abele et al., ANTIPROTON-PROTON ANNIHILATION AT REST INTO KAPPA(O)(L)KAPPA(+ -)PI(-/+)PI(O) - MANIFESTATIONS OF ISOSPIN INTERFERENCE/, Physics letters. Section B, 415(3), 1997, pp. 289-298
Citations number
25
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
415
Issue
3
Year of publication
1997
Pages
289 - 298
Database
ISI
SICI code
0370-2693(1997)415:3<289:AAARIK>2.0.ZU;2-X
Abstract
The decay (p) over bar p (at rest) --> K(L)(o)K(+/-)pi(+/-)pi(o), stud ied on a sample of more than 14000 events, is found to proceed dominan tly via two-body channels containing resonances with open strangeness. Contributions from K-1(1270)(K) over bar and K-1(1400)(K) over bar, b ranching into the successive K-1-decay modes, and from K(K) over bar* , K((K) over bar pi)(S) and (K pi)(S)((K) over bar pi)(S) are extract ed by means of a partial-wave analysis which accounts well for the dat a and also allows a search for weak contributions from other (K pi pi) and from(K (K) over bar pi) resonances. Striking asymmetries between the charged and the neutral kaonic resonances give evidence for interf ering isospin 0 and 1 annihilation amplitudes. (C) 1997 Published by E lsevier Science B.V.