HEPData Search

The reactions e + e − → ρη , ρπ , φπ and φη have been studied with the magnetic detector DM1 at DCI in the total energy ranges between 1.4 and 2.18 GeV. The ρη signal is clearly seen. Upper limits for ρπ and φη channels as well as for the OZI forbidden φπ channel.

3 data tables match query

Table 1

No description provided.

Table 3

UPPER LIMIT TO CROSS SECTION AT CL=90 PCT.

Table 4

UPPER LIMIT TO CROSS SECTION AT CL=90 PCT.

rivet Analysis
Study of $e^+ e^- \to K^0_S K^\pm \pi^\mp$ in the 1.4-{GeV} to 2.18-{GeV} Energy Range: A New Observation of an Isoscalar Vector Meson $\phi^\prime$ (1.65-{GeV})

Mane, F. ; Bisello, D. ; Bizot, J.C. ; et al.

Phys.Lett.B 112 (1982) 178-182, 1982.

Inspire Record 176801 DOI 10.17182/hepdata.30954

First measurements of the e + e − → K S 0 K ± π ∓ reaction in the 1.4–2.18 GeV energy range have been performed with the magnetic detector DM1 at the Orsay storage rings DCI. The cross section is rather large. The production is mainly K ∗0 K 0 which reveals an interference between isovector and isoscalar amplitudes. These results show again the existence of an isoscalar vector at 1.65 GeV shown to be a φ ′ meson.

1 data table match query

Table 1

No description provided.

rivet Analysis
Study of the $e^+ e^- \to \pi^+ \pi^- K^+ K^-$ Reaction From 1.4-{GeV} to 2.18-{GeV}

Cordier, A. ; Bisello, D. ; Bizot, J.C. ; et al.

Phys.Lett.B 110 (1982) 335-338, 1982.

Inspire Record 169382 DOI 10.17182/hepdata.30957

First measurements of the e + e − → π + π − K + K − cross section have been performed by the DM1 on DCI in the total energy range 1.4–2.18 GeV. π + π − K + K − production is dominated by K ∗ Kπ dynamics. The cross section is rather large around 1.9 GeV. Comparison with K 0 S inclusive production shows an isospin interference. Upper limits on φππ production are compatible with the OZI rule.

2 data tables match query

Table 1

No description provided.

Table 2

UPPER LIMITS TO PHI CROSS SECTIONS WITH CL=90 PCT.

rivet Analysis
Study of the $e^+ e^- \to \pi^+ \pi^- \pi^+ \pi^-$ Reaction in the 1.4-{GeV} to 2.18-{GeV} Energy Range

Cordier, A. ; Bisello, D. ; Bizot, J.C. ; et al.

Phys.Lett.B 109 (1982) 129-132, 1982.

Inspire Record 168552 DOI 10.17182/hepdata.30995

New measurements of thee + e − → π + π − π + π − cross section have been performed by the magnetic detector DM1 at DCI (ORSAY) in the 1.4−2.18 GeV total energy range with statistics of 11000 events. Assuming the4 π ± production is dominated by the ϱ′(1.6) we determine its parameters: M = 1.57 ± 0.02 (stat.) −0.00 +0.06 (syst.) GeV,Γ = 0.51 ± 0.04 (stat.) −0.01 +0.04 (syst.)GeV,Γ ρ ′ee B ϱ′→ ρ 0 π + π − = 2.67 ± 0.19 (stat.) −0.36 +0.27 (syst.)keV.

1 data table match query

Table 1

No description provided.

rivet Analysis
Measurement of the Charged Kaon Form-factor in the Energy Range 1.0-{GeV} to 1.4-{GeV}

Ivanov, P.M. ; Kurdadze, L.M. ; Lelchuk, M.Yu. ; et al.

Phys.Lett.B 107 (1981) 297-300, 1981.

Inspire Record 173076 DOI 10.17182/hepdata.31025

The cross section of the reaction e + e − → K + K − has been measured at the electron-positron storage ring VEPP-2M in the c.m. energy range 1.0–1.4 GeV. At energies above 1.15 GeV the experimental values of the charged kaon form factor considerably exceed the predictions of the simplest vector dominance model with ϱ, ω, ψ mesons.

1 data table match query

Table 1

No description provided.

rivet Analysis
Study of the Reaction $e^+ e^- \to 3 \pi^+ 3 \pi^-$ in the Total Energy Range 1400-{MeV} to 2180-{MeV}

Bisello, D. ; Bizot, J.C. ; Buon, J. ; et al.

Phys.Lett.B 107 (1981) 145-147, 1981.

Inspire Record 166353 DOI 10.17182/hepdata.31033

The e + e − → 3 π + 3 π − cross section has been measured between 1400 and 2180 MeV with the magnetic detector DM1 at the Orsay storage rings DCI. The cross section increases continuously above 1600 MeV and reaches 2 nb at the maximum explored energy, much larger than VDM previous estimates.

1 data table match query

Table 1

No description provided.

rivet Analysis
Observation of a New Isoscalar Vector Meson in $e^+ e^- \to \omega \pi^+ \pi^-$ Annihilation at 1.65-{GeV}

Cordier, A. ; Bisello, D. ; Bizot, J.C. ; et al.

Phys.Lett.B 106 (1981) 155-158, 1981.

Inspire Record 166964 DOI 10.17182/hepdata.31042

The e + e − → ωπ + π − → π + π − π + π − π 0 cross section has been measured at DCI by the DMI experiment in the 1.4–2.2 GeV energy range. A bump in this cross section appears at 1.65 GeV above a small background, with 6.2 s.d. statistical significance. It can be interpreted as a new isoscalar vector meson: ω ′ or ø ′.

1 data table match query

Table 1

THE INDIVIDUAL SYSTEMATIC ERRORS ARISE FROM THE UNCERTAINTY IN SUBTRACTING THE FIVE-PION (NON-OMEGA) BACKGROUND. THESE ERRORS ARE CORRELATED WITH THE STATISTICAL ERRORS.

ANGULAR AND ENERGY DEPENDENCE OF THE CROSS-SECTION AND ANALYZING POWER OF THE REACTION P P ----> D PI+ BETWEEN 725-MEV AND 1000-MEV

Mayer, B. ; Bertini, R. ; Cameron, J.M. ; et al.

Nucl.Phys.A 437 (1985) 630-642, 1985.

Inspire Record 217258 DOI 10.17182/hepdata.37040

The differential cross section and analyzing power of the reaction pp → d π + were measured for nine incident proton energies between 725 and 1000 MeV. A magnetic spectrometer was used to detect either deuterons or pions. Cross-section and analyzing-power angular distributions were respectively fitted with Legendre polynomial and associated Legendre function expansions, the coefficients of which were found to vary smoothly with energy in the vicinity of the alleged 3 F 3 dibaryon resonance.

12 data tables match query

Table 1

Data present here in form of Legendre polynomial fit.

Table 2

Legendre Polynomial fit to cross section.

Table 3

Legendre polynomial fit to analysing power.

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PRELIMINARY RESULTS FROM THE NEUTRAL DETECTOR AT VEPP-2M

Bukin, A.D. ; Vasserman, I.B. ; Vorobev, P.V. ; et al.

IYF-83-80, 1983.

Inspire Record 192041 DOI 10.17182/hepdata.37136

None

1 data table match query

Table 1

Axis error includes +- 0.0/0.0 contribution (?////).

Date

Collaboration

Subject_areas Reset

Phrases Reset

Reactions

Observables

CM Energies (GeV)

Authors

Search for a Possible Exotic State C (1480) at the Vepp-2m Storage Ring

Study of the Reactions $e^+ e^- \to \rho \eta$, $\rho \pi$, $\phi \pi$ and $\phi \eta$ for Total Energy Ranges Between 1.4-{GeV} and 2.18-{GeV}

rivet Analysis
Study of $e^+ e^- \to K^0_S K^\pm \pi^\mp$ in the 1.4-{GeV} to 2.18-{GeV} Energy Range: A New Observation of an Isoscalar Vector Meson $\phi^\prime$ (1.65-{GeV})

rivet Analysis
Study of the $e^+ e^- \to \pi^+ \pi^- K^+ K^-$ Reaction From 1.4-{GeV} to 2.18-{GeV}

rivet Analysis
Study of the $e^+ e^- \to \pi^+ \pi^- \pi^+ \pi^-$ Reaction in the 1.4-{GeV} to 2.18-{GeV} Energy Range

rivet Analysis
Measurement of the Charged Kaon Form-factor in the Energy Range 1.0-{GeV} to 1.4-{GeV}

rivet Analysis
Study of the Reaction $e^+ e^- \to 3 \pi^+ 3 \pi^-$ in the Total Energy Range 1400-{MeV} to 2180-{MeV}

rivet Analysis
Observation of a New Isoscalar Vector Meson in $e^+ e^- \to \omega \pi^+ \pi^-$ Annihilation at 1.65-{GeV}

ANGULAR AND ENERGY DEPENDENCE OF THE CROSS-SECTION AND ANALYZING POWER OF THE REACTION P P ----> D PI+ BETWEEN 725-MEV AND 1000-MEV

PRELIMINARY RESULTS FROM THE NEUTRAL DETECTOR AT VEPP-2M