TY  - JOUR
AU  - Hartmann, M.
AU  - Maeda, Y.
AU  - Keshelashvili, I.
AU  - Koch, H. R.
AU  - Mikirtytchiants, S.
AU  - Barsov, S.
AU  - Borgs, W.
AU  - Büscher, M.
AU  - Dimitrov, V. I.
AU  - Dymov, S.
AU  - Hejny, V.
AU  - Kleber, V.
AU  - Koptev, V.
AU  - Kulessa, P.
AU  - Mersmann, T.
AU  - Merzliakov, S.
AU  - Mussgiller, A.
AU  - Nekipelov, M.
AU  - Nioradze, M.
AU  - Ohm, H.
AU  - Pysz, K.
AU  - Schleichert, R.
AU  - Stein, H. J.
AU  - Ströher, H.
AU  - Watzlawik, K.-H.
AU  - Wüstner, P.
TI  - Near-Threshold Production Phi Mesons in pp Collisions
JO  - Physical review letters
VL  - 96
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-52234
SP  - 242301
PY  - 2006
N1  - Record converted from VDB: 12.11.2012
AB  - The pp -> pp phi reaction has been studied at the Cooler Synchrotron COSY-Julich, using the internal beam and ANKE facility. Total cross sections have been determined at three excess energies epsilon near the production threshold. The differential cross section closest to threshold at epsilon=18.5 MeV exhibits a clear S wave dominance as well as a noticeable effect due to the proton-proton final-state interaction. Taken together with data for pp omega production, a significant enhancement of the phi/omega ratio of a factor 8 is found compared to predictions based on the Okubo-Zweig-Iizuka rule.
KW  - p p: inelastic scattering (INSPIRE)
KW  - Phi(1020): hadroproduction (INSPIRE)
KW  - threshold (INSPIRE)
KW  - mass spectrum: (K+ K-) (INSPIRE)
KW  - channel cross section: energy dependence (INSPIRE)
KW  - differential cross section: momentum dependence (INSPIRE)
KW  - angular distribution (INSPIRE)
KW  - amplitude analysis: partial wave (INSPIRE)
KW  - p p: final-state interaction (INSPIRE)
KW  - yield: (Phi(1020) omega(783)) (INSPIRE)
KW  - Iizuka-Okubo-Zweig rule (INSPIRE)
KW  - magnetic spectrometer: experimental results (INSPIRE)
KW  - Juelich COSY PS (INSPIRE)
KW  - p p --> Phi(1020) 2p (INSPIRE)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000238487900013
DO  - DOI:10.1103/PhysRevLett.96.242301
UR  - https://juser.fz-juelich.de/record/52234
ER  -