Search for new states decaying to strange particles at HERA
S.Chekanov, U.Karshon, Z.Ren
Preliminary plots (April 19, 2005):
Fig.1: K0s-P spectra extended to Lambda_c region
Fig.2: Lambda_c for eta>0 and eta<0
Fig.3: Lambda_c for proton and antiprotons
Fig.4a (K0-antiprotons) and Fig.4b (K0-proton)(supporting plots for PQ paper, fits as in the text)
Fig.5: K0-(anti)protons for eta>0 and eta<0
Fig.6: K0-(anti)protons for eta>0
Fig.7, data as in Fig.6, but 3 normalization parameters are free. Peak/width are fixed to the sum
Fig.8: K-P+ spectrum - Lambda(1520) figure
Fig.9: K-P- and K+P+ spectrum - Theta++ figure
Fig.10: Lambda(1520) for eta>0 and eta<0
Fig.11: Lambda(1520) for proton and antiproton
Fig.12: Lambda-Pi spectrum - "Sigma(1600)" figure
Second-analysis plots (only for plots which have been changed after Phys. Coor, Apr. 12):
for Fig.1: K0s-P spectra extended to Lambda_c region
for Fig.3: K-P - Lambda(1520) figure
for Fig.7: Lamda-Pi spectrum
Additional plots (requested by Phys. Coor, Apr. 12):
Fig. 1) Sum of all channels with the fit as in the PG paper
Fig. 2) K0s-P (a) two-gaussian fit with free parameters; b),c),d) 2 Gaussian fit with peak and width fixed from the sum of all channels (Fig.1)
Fig. 3) K0s-P (a) two-gaussian fit with free parameters; second Gaussian describes the structure at 1560 MeV; b),c),d) 2 Gaussian fit with peak and width fixed from the paper
Fig. 4) K0s-P (a) two-gaussian fit with free parameters; b) two-gaussian fit with peak and width fixed from the sum (Fig.1); proton and antiproton samples are combined
Fig. 5) K0s-P in 4 regions. The fit function as for the sum of all channels (Fig.1), all fitting parameters are also taken from Fig.1, only three normalisation parameters are free
Fig. 6)
Comparison with second analysis for Fig.7: Zhanha's figure
Fig. 7) as Fig. 6a, only background fit with free parameters
Please send your comments to:
Sergei Chekanov
Uri Karshon
Yujin Ning
Zhenhai Ren
Last updated by S.Chekanov: April 19, 2005