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Experiments at VEPP-2M with SND detector

The SND collaboration Achasov, M.N. ; Aulchenko, V.M. ; Baru, S.E. ; et al.

BINP-98-65, 1998.

Inspire Record 476386 DOI 10.17182/hepdata.50374

Short overview of experiments with SND detector at VEPP-2M e^+e^- collider in the energy range 2E = 400 - 1400 MeV and preliminary results of data analysis are presented.

4 data tables

Table 1

No description provided.

Table 2

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Table 3

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MEASUREMENT OF PI- P ---> PI0 PI0 N AT 25-GEV/C

Apel, W.D. ; Augenstein, K.H. ; Bertolucci, E. ; et al.

Nucl.Phys.B 201 (1982) 197-204, 1982.

Inspire Record 181089 DOI 10.17182/hepdata.17634

The reaction π − p→ π 0 π 0 n has been measured with a 648 channel hodoscope spectrometer for the detection of the four γ's from the π 0 decays. The π 0 π 0 D-wave is fully compatible with the f 0 contribution as it is determined in high-statistics π + π − experiments. The magnitude of the π 0 π 0 S-wave and the cosinus of its phase angle (relative to the known D-wave) are determined from fits to the π 0 π 0 angular distributions. Argand diagrams for the I = 0 amplitude S 0 are given for the range 1000 to 1500 MeV/ c 2 . Two solutions exist. One exceeds the unitarity limit above 1200 MeV/ c 2 . The other remains within the unitarity limit and is nearly elastic up to 1450 MeV/ c 2 . It indicates an S 0 wave resonance around 1300 MeV/ c 2 .

2 data tables

Table 1

No description provided.

Table 2

No description provided.

PHOTOPRODUCTION OF RHO0 MESONS ON HYDROGEN AT GAMMA QUANTA ENERGIES OF 15-GEV - 30-GEV. (IN RUSSIAN)

Aleksandrov, Yu.A. ; Baranov, S.S. ; Belousov, A.S. ; et al.

Yad.Fiz. 32 (1980) 651-658, 1980.

Inspire Record 159787 DOI 10.17182/hepdata.18966

None

6 data tables

Table 1

SIG OBTAINED FROM INTEGRATION OF D(SIG)/D(T).

Table 2

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Table 3

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Reaction $\pi^- p \to \eta n$ in the 15-{GeV}/$c$ to 40-{GeV}/$c$ Momentum Range

The Serpukhov-CERN collaboration Apel, W.D. ; Augenstein, K.H. ; Bertolucci, E. ; et al.

Nucl.Phys.B 152 (1979) 1, 1979.

Inspire Record 133409 DOI 10.17182/hepdata.41487

A high-statistics measurement of the reaction π − p→ η n; η →2 γ has been performed at the 70 GeV Serpukhov accelerator for 15, 20, 25, 30 and 40 GeV/ c incident pion momentum using the NICE set-up with its associated 648-channel hodoscope spectrometer for γ-ray detection. It is found that the spin-flip and non-spin-flip amplitudes can be parametrized, for small | t |, as exponentials with the same slopes to within a few percent. For | t | ≳ 1 (GeV/ c ) 2 there is a break in the differential cross section. In addition, the A 2 effective trajectory deviates markedly for | t | ≳ 1 GeV/ c ) 2 from the linear behaviour valid for smaller | t |.

4 data tables

Table 1

No description provided.

Table 2

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Table 3

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