Ivanov, Yu.M.
Max results
Sort by Reverse order

Showing 3 of 1653 results

Date

Photoproduction of positive pions on protons in the region of resonance p-33(1236)

Aleksandrov, Yu.M. ; Grushin, V.F. ; Leikin, E.M. ; et al.
Yad.Fiz. 12 (1970) 770-781, 1970.
Inspire Record 63291 DOI 10.17182/hepdata.29553

None

1 data table
Table 1

No description provided.


Further search for quarks at the 70 gev ihep accelerator

Antipov, Yu.M. ; Bolotov, V.N. ; Devishev, M.I. ; et al.
Phys.Lett.B 30 (1969) 576-580, 1969.
Inspire Record 63242 DOI 10.17182/hepdata.28870

The results of the experiment searching for quarks with charge − 1 3 and 2 3 produced by 70 GeV protons on an aluminium target at zero angle are reported. For the selection of quarks the system of spectrometric scintillation counters, time-of-flight spectrometer, gas Cerenkov threshold counter and magnetic spectrometer with spark chambers were used. In the range of masses available at the IHEP accelerator, quarks were not found. The upper limit estimation of the differential cross-section for quark production with mass ⩽ 5 GeV /c 2− and charge −1 3 is 7×10 −38 cm 2 / ster GeV /c (with 90% confidence level). The total cross-section for quark production with charge −1 3 and mass 4.5–5 GeV /c 2 does not exceed 3×10 −39 cm 2 .

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Study of the process $e^+⁢e^-\to \pi^+\pi^-\pi^0$ in the energy range 840-1020 MeV on the VEPP-2M storage ring with the Cryogenic Magnetic Detector

The CMD-2 collaboration Barkov, L.M. ; Vasserman, I.B. ; Vorobev, P.V. ; et al.
Budker Institute Preprints (1989) 15, 1989.
Inspire Record 2774417 DOI 10.17182/hepdata.151397

On the electron-positron storage ring VEPP-2M using the Cryogenic Magnetic Detector, the cross section of the e+e- -> π+π-⁢π0 process was measured in the energy range 2x420-2x510 MeV. The energy dependence of the cross section is consistent with the predictions of the vector dominance model taking into account the interference of omega and phi mesons. The optimal value of the omega-phi interference phase is 136+-36+-10 degree.

1 data table
Table 1

The Born cross section of the process e+e- -> pi+pi-pi0.